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PhD. (Lancaster)

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  1. Wong, J.W.C. Webber, J.B.W. Ogbonnaya, U.O., Characteristics of biochar porosity by NMR and study of ammonium ion adsorption. Journal of Analytical and Applied Pyrolysis, 143, 104687.


  1. Kayode S. Ogunleye, Onyinye S. Okeke, Maryjane O. Umego, Ogbonnaya U. Ogbonnaya. Extraction behaviour of cadmium in biochar amended soils. Crop Research, 54 (3&4): 59-64.


  1. Adedigba, B.M., Ogbonnaya, U.O., Vázquez-Cuevas, G.M. and Semple, K.T., 2018. Optimisation of XAD extraction methodology for the assessment of biodegradation potential of 14C-phenanthrene in soil. Environmental Technology & Innovation, 9, pp.140-150.


  1. Okere UV. Schuster J. Ogbonnaya UO Jones KC. Semple KT. 2017 Indigenous 14C-phenanthrene biodegradation in “pristine” woodland and grassland soils from Norway and United Kingdom. Environmental Science: Processes & Impacts 19, 1437-1444. DOI:10.1039/C7EM00242D


  1. Uchechukwu V. Okere., Ana Cabrerizo., Jordi Dachs., Uchenna O. Ogbonnaya., Kevin C. Jones., Kirk T. Semple., 2017. Effects of pre-exposure on the indigenous biodegradation of 14C-phenanthrene in Antarctic soils. International Biodeterioration & Biodegradation 30, 189-99.


  1. Uchenna O. Ogbonnaya, Taiwo O. Obasoro, Saheed A. Ilo, Julius Aigbogun., 2017 Biochar mitigates bioavailability and bioaccumulation of cadmium in Amaranthus viridis. Journal of Environmental Toxicology and Pollution Mitigation 1, 1-6


  1. Uchenna O. Ogbonnaya, Ayodeji Oyelami, Uchechukwu V. Okere, Maryjane O. Umego, Oluwadare A. David, Sunday A. Fasina, Kirk T Semple., 2017 Assessment of PAH contaminated land: Implementing a risk-based approach. Environmental Technology and Innovation 8, 84–95.


  1. Uchenna O. Ogbonnaya, Thomas James, Sunday A. Fasina and Kirk T. Semple., 2016 Impact of two contrasting biochars on the bioaccessibility of 14C-naphthalene in soil. Environmental Technology and Innovation, 6, 80-93.


  1. Ayodeji O. Oyelami, Uchenna Ogbonnaya, Chitom Muotoh and Kirk T. Semple., 2015 Impact of activated carbon on the catabolism of 14C-phenanthrene in soil. Environmental Science: Processes and Impacts, Journal of Royal Society of Chemistry 17, 1173-1181.


  1. Fasina A. Sunday, Oluwadare D. Abiodun, Omoju O. Johnson, Oluleye A. Kehinde, Ogbonnaya U. Ogbonnaya and Ogunleye K. Samuel., 2015 Can Nigerian soils sustain crop production? - The dilemma of a soil scientist. Nature & Faune 30, 34-38.


  1. Ogbonnaya, U. Ogbonnaya, Olusoji, O. Adebisi and Kirk, T. Semple., 2014 Impact of biochar on the bioaccessibility of 14Cphenanthrene in soil. Environmental Science: Processes and Impacts, Journal of Royal Society of Chemistry 16, 2635 – 2643.


  1. Uchenna Ogbonnaya, Ayodeji Oyelami, Justin Matthews, Olusoji Adebisi and Kirk T. Semple., 2014 Influence of wood biochar on phenanthrene catabolism in soils. Environments 1, 60 – 74.


  1. Ogbonnaya, Uchenna; Semple, T. Kirk., 2013 "Impact of Biochar on Organic Contaminants in Soil: A Tool for Mitigating Risk?" Special Issue: Biochar as Option for Sustainable Resource Management. Agronomy 3, 349 – 375.


  1. Webber, J. B. W., Corbett, P., Semple, K. T., Ogbonnaya, U., Teel, S. W., Masiello, C. A., Fisher, Q. J., Valenza II, J. J., Song, Y. Q., Hu, Q., 2013 An NMR study of porous rock and biochar containing organic material. Microporous and Mesoporous Materials 178, 94 – 98.


  1. Okigbo, R.N., Ogbonnaya, U.O., 2006 Antifungal effects of two tropical plants leaf extracts (Ocimum gratissimum and Aframomum melegueta) on Post-harvest Yam (Dioscorea spp.) rot. African Journal of Biotechnology. 5, 727 – 731.