Prof. Eric C. Njagi

Teaching Experience
Professor, May 2026 – to date
Chuka University, Department of Physical Sciences

Associate Professor, December 2021 – May 2026
Chuka University, Department of Physical Sciences

Senior Lecturer, June 2016-December 2021
Chuka University, Department of Physical Sciences

Lecturer, December 2014-June 2016
Chuka University, Department of Physical Sciences

Lecturer, September 2013-December 2014
Technical University of Kenya, Department of Chemical Science & Technology

Part-Time Lecturer, August 2013- December 2014
Chuka University, Department of Physical Sciences

Part-Time Lecturer, Jan 2013- May 2013
University of Nairobi, Department of Chemistry

Lecturer, December 2012-August 2013
Chuka University, Department of Physical Sciences

Teaching Assistant, August 2007-May 2012
University of Connecticut, Department of Chemistry

Part-time Lecturer, January 2007-July 2007
University of Nairobi, Department of Chemistry

Publications in Refereed Journals (Chemistry)

E. C. Njagi, C.-H. Chen, H. Genuino, H. Galindo, H. Huang, S. L. Suib, Total oxidation of CO at ambient temperature using copper manganese oxide catalysts prepared by a redox method. Appl Catal B: Environ 99 (2010) 103-110

E. C. Njagi, H. Huang, L. Stafford, H. Genuino, H. M. Galindo, J. B. Collins, G. E. Hoag, S. L. Suib. Biosynthesis of iron and silver nanoparticles at room temperature using aqueous sorghum bran extracts. Langmuir 27 (2011) 264-271

E. C. Njagi, H. C. Genuino, C. K. King’ondu, C.-H Chen, D. Horvath, S. L. Suib. Preferential oxidation of CO in H2-rich feeds over mesoporous copper manganese oxides synthesized by a redox method. Int J Hydrogen Energy 36 (2011) 6768-6779

E. C. Njagi, H. C. Genuino, C. K. King’ondu, S. Dharmarathna, S. L. Suib. Catalytic oxidation of ethylene at low temperatures using porous copper manganese oxides. Appl. Catal. A. 421-422 (2012) 154-160

C.-H Chen, E. C. Njagi, S.-P Sun, H. Genuino, B. Hu, S. L. Suib. Hydrophobic polymer-coated metal oxide catalysts for effective low-temperature oxidation of CO under moisture-rich conditions. Chem. Mater. 22 (2010) 3313-3315

H. M. Galindo, Y. Carvajal, E. Njagi, R. A. Ristau, S. L. Suib, Facile one-step template-free synthesis of uniform hollow microstructures of cryptomelane-type manganese oxide K-OMS-2. Langmuir, 26 (2010) 13677-13683

S. Sithambaram, W. Wen, E. Njagi, X.-F. Shen, J. C. Hanson, S. L. Suib, H2 production through the water-gas shift reaction: An in situ time-resolved x-ray diffraction investigation of manganese OMS-2 catalyst, Catal. Today 156 (2010) 2-7

H. C. Genuino, E. C. Njagi, E. M. Benbow, G. E. Hoag, J. B. Collins, S. L. Suib. Enhancement of the photodegradation of N-nitrosodimethylamine in water using amorphous and platinum manganese oxide catalysts. J. Photochem. Photobiol. A: Chem. 217 (2011) 284-292

S. Ching, D. A. Kriz, K. M. Luthy, E. C. Njagi, S. L. Suib. Self-assembly of manganese oxide nanoparticles and hollow spheres. Catalytic activity in carbon monoxide oxidation. Chem. Commun. 47 (2011) 8286-8288

C. K. King’ondu, A. Iyer, E. C. Njagi, N. Opembe, H. Genuino, H. Huang, R. A. Ristau, S. L. Suib. Light-assisted synthesis of metal oxide heirarchical structures and their catalytic applications. JACS, 133 (2011) 4186-4189

C.K. King’ondu, N. N. Opembe, H. C. Genuino, H. F. Garces, E. C. Njagi, E, A. Iyer, H. Huang, S. Dharmarathna, S. L. Suib, S. L. Nonthermal synthesis of three-dimensional metal oxide structures under continuous-flow conditions and their catalytic applications. J. Phys. Chem. C, 115(2011) 23273-23282

H. C. Genuino, S. Dharmarathna, E. C. Njagi, M. C. Mei, S. L. Suib, Gas-phase total oxidation of benzene, toluene, ethylbenzene, xylenes using manganese oxides and copper manganese oxide catalysts. J. Phys. Chem. C 116 (2012) 12066-12078

H. Genuino, H. Huang, E. Njagi, L. Stafford, S. L. Suib. A review of green synthesis of nanophase inorganic materials for green chemistry applications. In Handbook of Green Chemistry: Green Nanoscience 8 (2012) 217-224

H. C. Genuino, N. N. Opembe, E. C. Njagi, S. McCain, S. L. Suib. A review of hydrofluoric acid and its use in the car wash industry. J. Ind. Eng. Chem. 18 (2012) 1529-1539

E. C. Njagi, C-H. Kuo, H. C. Genuino, S. Dharmarathna, A. Gudz, S. L. Suib. High-Yield Selective Conversion of Carbohydrates to Methyl Levulinate Using Mesoporous Sulfated Titania-based Catalysts. Microporous & Mesoporous Materials. 202 (2015) 68-72
C.-H. Chen, E. C. Njagi, S.-Y Chen, D. T. Horvath, L. Xu, A. Morey, C. Mackin, R. Joesten, S. L. Suib. Structural Distortion of Molybdenum-Doped Manganese Oxide Octahedral Molecular Sieves for Enhanced Catalytic Performance. Inorg. Chem. (2015) 54(21)10163-10171
E. C. Njagi and S. L. Suib (2018). Selective conversion of fructose to methyl levulinate using sulphated zirconia-alumina binary oxides. J. Env. Sust. Adv. Res. 4:161-167.

A. F. Kariuki and E. C. Njagi (2018). Synthesis, characterization and antimicrobial activities of some hydroxytriazenes and their copper (II) complexes. J. Env. Sust. Adv. Res. 4. xxx-xxx.

R. K. Muya, L. Achola, E. C. Njagi, O. Ombaka and S. L. Suib (2019). Synthesis, characterization and applications of transition metal-doped manganese oxide catalysts. RJLBPCS. 5:16-30.

E. C. Njagi (2019). Overview of lignocellulosic biomass resources for sustainable production of biofuels and biochemicals in Kenya. J. Env. Sust. Adv. Res. xxxxx

Kithaka S. Chabari, Eric C. Njagi, Adiel Magana, Fredrick O. Ogolla (2020). Bacteriological water quality assessment of Nkenye stream in Meru south in Tharaka-Nithi County, Kenya. J. Ecol. 7(1):1-8.

Edith. M. Rugendo, Eric C. Njagi and Ochieng Ombaka. (2020). Concentration of inorganic contaminants in shallow borehole water in Chuka sub-county, Kenya. JCBPS. 11(1):062-076.

Evans Kipkemoi, Warren A. Andayi, Eric C. Njagi and Brian Ptoton. (2020). Analysis of pesticide residues in tomatoes and French beans from Murang’a and Kiambu Counties, Kenya. EJNFS. 12(11): 121-132.

Fidelis Ngugi, Joel M. Gichumbi, Eric C. Njagi and Ochieng Ombaka. (2021). Adsorption of rhodamine B from aqueous solution using mangroves (Rhizophora mucronata) carbon nanotubes nanocomposites. IJMRD. 8(3): 5-10.

Fidelis Ngugi, Joel M. Gichumbi, Eric C. Njagi, and Ochieng Ombaka. (2021). Adsorption of lead (II) ions from aqueous solutions using mangroves roots (Rhizophora mucronata) charcoal-carbon nanotubes nanocomposite. JMEST. 8(2):13408-13414.

Purity M. Kiteme, Benson, O. Onyango, Eric C. Njagi and Fredrick O. Ogolla. (2022). Medicinal plants used for treatment of gastrointestinal infections in Tharaka-Nithi County. International Journal of Pathogen Research. 10(4): 1-11.

Samson C. Kithaka, Eric C. Njagi, and J. Njagi. (2022). Assessment of heavy metals contaminants in Nkenye stream in Meru south, Kenya. J. Env. Sust. Adv. Res. 8:10-19.

Mbithe P. Kiteme, Benson O. Onyango, Eric C. Njagi and Fredrick O. Ogolla. (2023). Screening of antimicrobial activity of poly herbal extracts against bacterial pathogens causing gastroenteritis in Tharaka Nithi County, Kenya. S. Asian J. Res. Microbiol. 15(2):26-40.

P.L Lanyasunya, E. C. Njagi, J. Gichumbi and F. O. Ogolla (2024). Variation in heavy metals concentrations among seaweed species from Mkwiro seaweed farm, Kwale County, Kenya. Archives of Agriculture and Environmental Science. 9(1): 29-35.

S. Q. Bilalo, A. A. Andayi, E. C. Njagi and B. M. Ptoton (2024). Concentrations of Selected Heavy Metals in Soil and Tomatoes (Lycopersicon Esculenta Mill.) Grown in Kirinyaga County, Kenya. International Journal of Research and Analytical Reviews. 11(2):932-941.

E. N. Silas, O. Ombaka, E. Chomba and M. Muraya (2024). Heavy metal concentration in sediment and water of river Nyamindi, Kirinyaga County, Kenya. International Journal of Applied Science and Research. 7(4): 356-367.

E. N. Silas, O. Ombaka, E. Chomba and M. Muraya (2024). Assessment of heavy metal pollution in water and sediment of river Thiba, Kirinyaga County, Kenya. International Journal of Advances in Scientific Research and Engineering. 10(8): 74-84.

E. Kipkemoi, A. Andayi, B.M. Mwangi, E. C. Njagi and M. W. Kariuki. (2025). Effects of Catchment Land Use on Nutrients and Heavy Metals Inflows into Maragua and Mathioya Wetlands in Murang’a County, Kenya. International Journal of Research and Innovation in Applied Science. X(IV): 494-506.

E. Kipkemoi, A. Andayi, B. M. Mwangi, E. C. Njagi and M. W. Kariuki. (2025). Effects of Catchment Land Use on Water Quality in Maragua and Mathioya Riverine Wetlands, Murang’a County, Kenya. International Journal of Research and Innovation in Applied Science. X(V): 1363-1375.
D. O. Odhiambo, L. K. Omosa, E. C. Njagi, J. G. N. Kithure, E. N. Wekesa. (2025). In-silico Pharmacokinetics ADME/Tox Analysis of phytochemicals from genus Dracaena for their therapeutic potential. Scientific African. 29: e02796.

M. Kinuthia, E. Njagi, O. Ombaka, Z. Getenga (2025). Efficient removal of methylene blue from aqueous solutions using a copper oxide-zirconia-titania ternary system. IRE Journals. 9(1): 159-169.

J. K. Mbae, E. C. Njagi, Z. W. Muthui (2025). Electronic properties of Ca and Mg codoped anatase TiO2: A DFT study. EPRA International Journal of Research and Development, 10(8), 199-203.

M.M. Mugambi, W. Andayi, E. C. Njagi (2025). Rapid macronutrient profiling of maize varieties grown in Kirinyaga County, Kenya using ATR-FTIR spectroscopy and chemometric techniques. International Journal of Research and Innovation in Applied Science. X(VIII), 1226-1234.

J. K. Mbae, E. C. Njagi, Z.W. Muthui. (2025). First principles investigation of the structural and electronic properties of Mg-Ca codoped TiO2 polymorphs. Physica B: Condensed Matter, 718, 417891.

D. O. Odhiambo, L. K. Kerubo, E. C. Njagi, J. M. Obegi (2025). Molecular Docking and dynamic simulation of Genus Dracaena Phytochemicals as Potential Efflux Pump inhibitors in MDR Superbugs: A Potential Broad-Spectrum Solution. Scientific African. Under Review.

A. Kimani, J. M. Gichumbi, E. Njagi, F. O. Ogolla (2025). Spatiotemporal Patterns and Treatment Efficiency of Heavy Metal and Nutrient Pollutants in Urban Wastewater Systems: A Case Study of Juja and Ruiru, Kenya. Preprints.

Conference Presentations

E. C. Njagi, C.-H. Chen, H. Galindo, H. Huang, C. K. King’ondu, D. Horvath, S. L. Suib. Preparation and characterization of copper manganese oxides for environmental applications. University of Connecticut, Department of Chemistry, April 2011, Storrs, CT, USA.

E. C. Njagi, H. Huang, L. Stafford, H. Genuino, H. M. Galindo, J.B. Collins, G. E. Hoag, S. L. Suib. Biosynthesis of iron and silver nanoparticles at room temperature using aqueous sorghum bran extracts. The 4th International Contaminated Site Remediation Conference, September 2011, Adelaide, Australia.

L. Stafford, H. Huang, E. C. Njagi, L. Jin, J. B. Collins, G. E. Hoag, S. L. Suib. Mimicking Nature: Oxidation of 2,4,6-Trichlorophenol with Mixed Valent Manganese Oxides (K-OMS-2). The 4th International Contaminated Site Remediation Conference, September 2011, Adelaide, Australia.

E. C. Njagi, H. C. Genuino, C.-H. Chen, S. L Suib. Preparation and characterization of mesoporous copper manganese oxides for environmental applications. New England Catalysis Society 2011 Fall Symposium, November 2011, Worcester Polytechnic Institute, Worcester, MA, USA.

E. C. Njagi and S. L. Suib. Selective Conversion of Fructose to Methyl Levulinate using Sulfated Zirconia-Alumina Binary Oxides. The 4th Chuka University Annual International Research Conference, 18th to 20th October, 2017, Chuka University, Kenya.

A. F. Kariuki and E. C. Njagi. Antibacterial Activities of Some Hydroxytriazene Derivatives. The 4th Chuka University Annual International Research Conference, 18th to 20th October, 2017, Chuka University, Kenya.

E. C. Njagi. Selective Conversion of Carbohydrates to Methyl Levulinate Using Mesoporous Sulfated Titania-Zirconia Catalysts. The 5th Humboldt Conference, 19th to 21st June, 2018, Sportsman’s Arms Hotel, Nanyuki, Kenya.

Eric C. Njagi. Overview of Lignocellulosic Biomass Resources for Sustainable Production of Biofuels and Biochemicals in Kenya. The 5th Chuka University Annual International Research Conference. 24th to 26th October, 2018, Chuka University, Kenya

R. K. Muya, E. C. Njagi and O. Ombaka. Synthesis, Characterization and Application of Transition Metal-Doped Manganese Oxides. The 5th Chuka University Annual International Research Conference. 24th to 26th October, 2018, Chuka University, Kenya

S.M. Njogu, E. C. Njagi and R. Kariuki. Synthesis and Characterization of Silica Obtained from Local Rice Husks. The 6th Chuka University Annual International Research Conference. 6th to 8th November, 2019, Chuka University, Kenya

Chabari S. K., E. C. Njagi and A. Magana. Assessment of Coliform Bacteria Contaminant in Nkenye Stream in Meru South, Kenya. The 6th Chuka University Annual International Research Conference. 6th to 8th November, 2019, Chuka University, Kenya

E. M. Rugendo, E. C. Njagi and O. Ochieng. Assessment of Quality of Borehole Water in Chuka. The 7th Chuka University International Research Conference. 3rd to 4th December, 2020, Chuka University, Kenya

F. Ngugi, J. Mwangi and E. Njagi. Adsorption of Li Ions from Aqueous Solutions using Mangrove Roots (Rhizophora Mucronata) Charcoal-Carbon Nanotube Nanocomposite. The 7th Chuka University International Research Conference. 3rd to 4th December, 2020, Chuka University, Kenya

S. K. Chabari, E. C. Njagi and J. Njagi. Assessment of Heavy Metals Contaminants in Nkenye Stream in Meru South, Kenya. The 8th Chuka University International Research Conference. 7th to 8th October, 2021, Chuka University, Kenya

E. Kipkemoi E, W. A. Andayi, E. C. Njagi, B. Ptoton. Analysis of Pesticide Residues in Tomatoes and French Beans in Murang’a and Kiambu Counties, Kenya. International Conference on Technology and Innovation for Sustainable Development. 3rd to 5th November, 2021, Murang’a University of Technology, Kenya.

P. L. Lanyasunya, J. G. Mwangi, E. C. Njagi. Determination of Morphological Diversity and Elemental Composition of Seaweeds at Mkwiro Seaweed Farm, Kwale County, Kenya. 10th Chuka University Annual International Research Conference. 5th to 6th October, 2023, Chuka University, Kenya.

R. W. Karau, O. Ombaka, E.C Njagi, M. Muraya, T. N. Mbuthia. Assessment of the Local Community Perception of the Sources of the Athi River Water Pollution, Mavoko Region, Kenya. 10th Chuka University Annual International Research Conference. 5th to 6th October, 2023, Chuka University, Kenya.

J. N. Nyaga, J. M. Gichumbi, E. C. Njagi. Green Synthesis, Structural Characterization, Antibacterial and Antifungal Studies of Novel Schiff Bases. 10th Chuka University Annual International Research Conference. 5th to 6th October, 2023, Chuka University, Kenya.

H. M. Mati, E. C. Njagi, Z. W. Muthui. Mechanical Properties of Binder-Less Common Reed (Phragmites Australis)-Sawdust Briquettes for Domestic Fuel Consumption. 10th Chuka University Annual International Research Conference. 5th to 6th October, 2023, Chuka University, Kenya.

J. M. Mutua, J.M. Gichumbi, E. Njagi. Determination of Physico-Chemical Parameters and Bis(2-Ethylhexyl) Phthalate in Meru Wastewater Treatment Plant. The 11th Chuka University Annual International Research Conference. 23rd to 24th October, 2024, Chuka University, Kenya.

F. K. Kimutai, J. M. Gichumbi, E. C. Njagi. Synthesis, Characterization and Antibacterial Properties of Copper (II) Complexes of Schiff Bases Derived from Benzophenone Derivatives and Selected Anilines. The 11th Chuka University Annual International Research Conference. 23rd to 24th October, 2024, Chuka University, Kenya.

G. L. Kiprono, O. Ombaka, E. C. Njagi. Determination of Physicochemical Parameters in Borehole Water Used by NAWASSCO Within Nakuru East, Kenya. The 11th Chuka University Annual International Research Conference. 23rd to 24th October, 2024, Chuka University, Kenya.

K. N. Otao, J. M. Gichumbi, E. C. Njagi. Synthesis, Characterization and Antimicrobial Properties of Heterocyclic N, N’- Bidentate Ligands and Their Transition Metal (II) Complexes. The 11th Chuka University Annual International Research Conference. 23rd to 24th October, 2024, Chuka University, Kenya.

Research Grants

1. A. K. Fundi, E. C. Njagi and S. Kiruki. (2015). Synthesis, Antibacterial and Mosquito Larvicidal Activities of Fluorinated Hydroxytriazine Derivatives bearing Sulphonamide Moiety and their Co(II) and Ni(II) complexes. Chuka University MSc. Research Grant of KSh 175, 000.

2. A. K. Fundi, E. C. Njagi and S. Kiruki. (2015). Synthesis, characterization and antimicrobial activities of hydroxytriazenes and their metal complexes. National Commission for Science, Technology and Innovation (NACOSTI) MSc Research Grant (NACOSTI/RCD/ST&I/7TH CALL/MSc/153) of KSh 190, 000.

3. E. C. Njagi. (2017). Catalytic Conversion of Agricultural Residues to Levulinate and Ketal Esters using Mesoporous Ternary Oxides. Chuka University Research Grant of KSh 500, 000.
4. S. M. Njogu and E. C. Njagi. (2018). Synthesis of Faujasite Zeolites from Rice Husk Ash and Evaluation of their Catalytic Activity. Chuka University Innovation and Commercialization Research Grant of KSh 500, 000.

5. F. Ngugi, M. Gichumbi and E. C. Njagi. (2019). Adsorption of lead and rhodamine B from municipality wastewater using mangroves (rhizophora mucronata), carbon nanotubes and cobalt ferrite nanocomposites. Chuka University PhD Research Grant of Ksh 200, 000.
6. R. W. Karau, E.C. Njagi, O. Ombaka and S. Muraya (2019). The impact of human activity on the distribution of heavy metals in agricultural soil, plants, river sediments and water quality of Athi River, Kenya. Chuka University MSc Research Grant of Ksh 100, 000.
7. E.M. Rugendo, E.C. Njagi and O. Ombaka. (2019). Assessment of Quality of Borehole Water in Meru South Sub-County, Kenya. Chuka University MSc Research Grant of Ksh 100, 000.
8. J. N. Nyaga, J. M. Gichumbi and E. C. Njagi. (2019). Green Synthesis, Structural Characterization, Antibacterial and Antifungal Studies of Novel Schiff Bases. Chuka University MSc Research Grant of Ksh 100, 000.
9. Z.W. Muthui and E.C. Njagi. (2020). Prediction and Fabrication of TiO2 Based Transition Metal Compounds for Photocatalytic Applications. Chuka University Internal Research Grant of Ksh 930, 000.

10. P. M. Kiteme and E. C. Njagi. (2021). Efficacy of Selected Traditional Medicinal Herbs used for Treatment of Gastro-Intestinal Infections in Tharaka-Nithi County, Kenya. Chuka University Internal Research Grant of Ksh 150, 000.

11. O. Ombaka, E. C. Njagi, J. M. Gichumbi, Z. Muthui, G. K. Gathungu, S. Musundi, M. M. Mahugu and M. Okong’o (2021) Monitoring and Modelling of Pollutants in Municipal Waste Water and their Remediation for Reuse. Chuka University Innovation and Commercialization Research Grant of Ksh 2, 000, 000.

12. M. K. Njagi. and E. C. Njagi. (2022). Characterization and remediation with prepared activated carbon of water used domestically in Kiambere location, Mbeere South, Embu County. Chuka University Internal Research Grant of Ksh 100, 000.

13. P.L. Lanyasunya, J.G. Mwangi and E. C. Njagi. (2022). Determination of morphological diversity, heavy metals concentrations and essential elements levels in selected edible seaweeds at KISITE-Mpunguti marine reserve, Kenya. Chuka University Internal Research Grant of Ksh 150, 000.

14. H. M. Mati, Z. W. Muthui and E. C. Njagi. (2023). Mechanical and combustion properties of binderless common reed (Phragmites australis)-sawdust briquettes for domestic fuel consumption. Chuka University Internal Research Grant of Ksh 138, 000.

15. P. K. Kamweru, E. C. Njagi (2024). Generative Artificial Intelligence (GenAI) in Higher Education: Exploring Potential, Impact and Risks in Teaching and Learning. DAAD Workshop Grant of Euro 8, 964.

16. Z. W. Muthui, E. C. Njagi (2025). Hands-on Workshop on Basic Electronic Structure Methods. International Centre for Theoretical Physics Workshop Grant of Euro 1,335.

17. Z. W. Muthui, E. C. Njagi (2025). Hands-on Workshop on Basic Electronic Structure Methods. National Research Fund Grant of Ksh 300, 000.

Workshops and Conferences

1. Attended the international conference on pesticide use in developing countries, October 2006, Arusha, Tanzania.
2. Attended the ANCAP-IFS international training workshop on scientific methodology, development of grant application and access to scientific literature, October 2006, Arusha, Tanzania
3. Attended the New England Catalysis Conference, April 2008, Worcester Polytechnic Institute Worcester, MA, USA.
4. Attended the Grant Writing Workshop at the 4th International Contaminated Site Remediation Conference, Sunday 11th September 2011, Adelaide, Australia.
5. Attended the National Workshop on the Overview of Trends in Teaching and Research in Inorganic Chemistry and Its Application in Kenya, 12th to 13th May, 2016, University of Nairobi, Kenya.
6. Attended the 4th Chuka University International Research Conference, 18th to 20th October, 2017, Chuka University, Kenya.
7. Attended the 5th Chuka University International Research Conference, 24th to 25th October, 2018, Chuka University, Kenya.
8. Attended the 5th Humboldt Conference, 19th to 21st June, 2018, Sportsman’s Arms Hotel, Nanyuki, Kenya
9. Attended the Pan Africa Chemistry Network Congress 2018: Managing Resources through Chemistry: Wealth Not Waste. 6-8th November 2018, Nairobi, Kenya.
10. Attended the Agilent® Food Safety and Environmental Seminar. 27th November, 2018, the Boma Hotel, Nairobi, Kenya.
11. Participated in the 2nd Chuka University Open Week, 5th to 9th June, 2017, Chuka University, Kenya. Title of Work: Formulation of Soaps and Detergents.
12. Participated in the 5th Pedagogy Training Workshop, June, 2018, Chuka University, Kenya.
13. Attended an Awareness Training on Quality Management Systems ISO 9001:2015, 19th September, 2017, Chuka University, Kenya.
14. Attended an Awareness Training on Information Security Management Systems ISO/IEC 27001: 2013, 17th September, 2019, Chuka University, Kenya.
15. Participated in the Open, Distance and e-Learning (ODEL) Training held from 13th to 16th October, 2020 in Chuka University
16. Attended the Sensitization/Training Workshop for Universities, TVETs and Research Institutions in the Eastern and Mt. Kenya Regions on Intellectual Property, 27th to 30th September, 2021.
17. Attended the DAAD Funded Generative Artificial Intelligence Workshop, 21st-23rd August, 2024, Chuka University, Kenya.
18. E. C. Njagi. Aspects in Solid State Physics Necessary for the Determination of Crystal Structure. Workshop on Electronic Structure Methods. 5th to 9th May, 2025, Chuka University, Kenya
19. Attended the Training on Competence Based Education (CBE) Curriculum Review Guidelines, 11th June, 2025, Chuka University, Kenya.

Postgraduate Topics Supervised
PhD
1. Adsorption of lead and rhodamine B from municipality wastewater using mangroves (rhizophora mucronata), carbon nanotubes and cobalt ferrite nanocomposites.
2. Assessment of heavy metal pollution and the phytoremediation potential of nonedible plants in Mwea irrigation scheme
3.Impacts of catchment land use on water quality status of small riverine ecosystems in Murang’a County, Kenya
4. Ab initio defect engineering and green synthesis of Ca-Mg codoped titania and zirconia for photocatalytic applications.

Masters
1. Synthesis, characterization and biological evaluation of fluorinated hydroxytriazene derivatives and their metal complexes.
2. Synthesis, characterization and application of transition metal-doped manganese oxide catalysts for degradation of methylene blue
3. Assessment of quality of shallow wells water in Chuka Sub-County, Kenya
4. Analysis of pesticide residues in tomatoes and French beans in Murang’a and Kiambu Counties, Kenya
5. The impact of human activities on the distribution of heavy metals in agricultural soil, crops, river sediments and water quality of Athi river, Machakos County, Kenya
6. Analysis of selected heavy metals and their correlations in tomatoes, soils, and commonly used inorganic fertilizers in Kirinyaga County, Kenya.
7. Synthesis, characterization and antibacterial properties of copper(II) complexes of Schiff bases derived from benzophenone derivatives and selected anilines.
8. Determination of physico-chemical parameters and removal of bis(2-ethylhexyl) phthalate from wastewater using Prosopis juliflora biochar/carbon nanotubes composite adsorbent.
9. Determination of physico-chemical parameters and remediation of Pb(II) using a composite of Moringa oleifera seeds and kaolin clay in borehole water within Nakuru East sub county, Kenya.
10. Synthesis, characterization and antibacterial properties of heterocyclic N, N’-bidentate ligands and their transition metal (II) complexes.
11. Synthesis, characterization and application of copper oxide-zirconia-titania ternary system for removal of methylene blue dye in waste water
12. Green synthesis, characterization and antimicrobial activities of selected Schiff bases.
13. Synthesis and characterization of Fe-Co-Mn ternary oxides for adsorptive removal of methylene blue dye from synthetic water
14. Synthesis, characterization and antibacterial activity of selected Schiff base ligands and their copper complexes.
15. Assessment of physico-chemical properties, bacterial contamination, and water quality interrelationships in Lanyiru spring, Meru county, Kenya
16. Characterization of clay samples from Murang’a, Nyeri, Embu and Tharaka Nithi counties for adsorption of cadmium for water purification
17. Determination of water quality of Nguue spring and river Mutonga in Tharaka-Nithi, Kenya and evaluation of corn-cob derived carbon powder in remediation of contaminated water.
18. Water quality and remediation utilizing multiwalled carbon nanotubes/Kigelia africana fruit biochar composite in Thiba river Kirinyaga, Kenya.
19. Investigation of water quality and purification potential of Commelina banghalensis a wetland macrophytes in Nkenye stream in Meru South, Tharaka Nithi County, Kenya.
20. Determination of morphological diversity, heavy metals concentrations and essential elements levels in selected edible seaweeds at Mkwiro seaweed farm, Kwale County, Kenya.
21. Efficacy of traditional medicinal herbs used for treatment of gastro-intestinal infections in Tharaka-Nithi County. MSc in Microbiology & Biotechnology
22. Mati, H. M. (2023). Mechanical and combustion properties of naturally binding common reed (Phragmites australis)-sawdust briquettes for domestic fuel consumption. MSc in Physics. Chuka University