UNUABONAH Emmanuel Iyayi

Senior Lecturer, Industrial Chemistry
Redeemer’s University, Nigeria



Scientific Qualifications

2007: Doctor of Philosophy, (Chemistry), University of Ibadan, Nigeria

2003: Master of Science, (Industrial Chemistry), University of Ibadan, Nigeria

1999: Bachelor of Science (Hons), (Industrial Chemistry), University of Benin, Nigeria


Research field:

Reaction Engineering & Design with focus on engineering materials for adsorption of pollutants from water


1. Omorogie, M. O., Babalola J. O., Unuabonah E. I., Gong J. R. (2013). Hybrid Materials from Agrowaste and Nanoparticles: Implications On the Kinetics of the Adsorption of Inorganic Pollutants. Environmental Technology DOI:10.1080/09593330.2013.839747  

2. Unuabonah E. I., Gunter C., Weber J., Lubahn S., Taubert A. (2013). Hybrid Clay: A new highly efficient Adsorbent for water treatment. ACS Sustainable Chemistry & Engineering 1 (8): 966-973.

3. SCOPE-Zhongyu Environmental Awards 2012 (2013). Environmental Development 5: 180-181 (Elsevier).

4. Jonathan Oyebamiji Babalola, Martins Osaigbovo Omorogie, Adesola Abiola Babarinde, Emmanuel Iyayi Unuabonah, Vincent Olukayode Oninla (2013). Optimization of the biosorption of Cr3+, Cd2+ and Pb2+ using new biowaste: Zea mays seed chaff. Environmental Engineering and Management Journal (In press).

5. Ofomaja, A. E., Unuabonah, E. I. (2013). Kinetics and time-dependent Langmuir modeling of 4-nitrophenol adsorption onto mansonia sawdust. J. Taiwan Inst. Chem. Engineers doi:10.1016/j.jtice.2012.12.021.

6. Unuabonah E. I., Olu-Owolabi, B. I., Taubert, A., Omolehin, E. B., Adebowale K. O. (2013). SAPK: A novel composite resin for water treatment with very high Zn2+, Cd2+ and Pb2+ adsorption capacity. Industrial and Engineering Chemistry Research 52(2): 578-585.

7. Omorogie M. O., Babalola J. O., Unuabonah E. I., Song W., Gong J. R. (2013). Efficient chromium abstraction from aqueous solution using a low-cost biosorbent: Nauclea diderrichii seed biomass waste. Journal of Saudi Chemical Society dx.doi.org/10.1016/j.jscs.2012.09.017
8. Omorogie M. O., Babalola J. O., Unuabonah E. I., Gong J. R. (2012). Kinetics and Thermodynamics of heavy Metal ion Sequestration Onto Novel Nauclea Diderrichii Seed Biomass. Bioresource Technology 118: 576-579

9. Unuabonah E. I., M. I. El-Khaiary, Olu-Owolabi, B. I., Adebowale, K. O. (2012). Predicting the Dynamics and Performance of a Polymer- Clay based composite in a Fixed Bed System for the removal of Lead (II) ion. Chem. Eng. Res. Des. 90:1105-1115.

10. Adie G. U., Unuabonah E. I., Adeyemo A. A., Adeyemi, O. G. (2011) Biosorptive removal of Pb2+ and Cd2+ onto novel biosorbent: Defatted Carica Papaya seeds. Biomass & Bioenergy, 35(7):2517-2525.

11. Akpa, O. M., Unuabonah, E. I., (2011). Small-Sample Corrected Akaike Information Criterion: An appropriate statistical tool for ranking of adsorption isotherm models. Desalination 272 (1-3):20-26.

12. Oladoja N. A., Alliu Y. B., Ofomaja A. E., Unuabonah I. E. (2011). Synchronous attenuation of metal ions and colour in aqua stream using tannin–alum synergy. Desalination 271 (1-3) : 34-40 .

13. Yah C. S., Iyuke S. E., Unuabonah E. I., Bathgate G., Simate G. S., Matthews G., Cluett J. D. (2011). Continuous Synthesis of Multi-Walled Carbon Nanotubes from Xylene Using the Swirled Floating Catalyst Chemical Vapour Deposition Technique. Journal of Materials Research 6: 640-644.

14. Olu-Owolabi B. I., Unuabonah E. I. (2011). Adsorption of Zn2+ and Cu2+ onto sulphate and phosphate-modified Bentonite.  Applied Clay Science 51: 170–173. 

15. Ofomaja A. E., Unuabonah E. I. (2011). Adsorption kinetics of 4-nitrophenol onto a cellulosic material, mansonia wood sawdust and multistage batch adsorption process optimization. Carbohydrate Polymers 83(3): 1192-1200.

16. Yah C. S., Iyuke S. E., Unuabonah E. I., Pillay O., Vishanta C., Tessa S. M. (2010). Temperature Optimization for bioethanol from Corn Cobs using mixed yeast strain. Online J. Biol. Sci. 10: 103-108.

17. Olu-Owolabi, B. I., Unuabonah E. I. (2010). Kinetic and thermodynamics of the removal of Zn2+ and Cu2+ from aqueous solution by sulphate and phosphate modified Bentonite clay. Journal of Hazardous Materials 184:731–738

18. Unuabonah , E. I., Olu-Owolabi, B. I., Fasuyi, E. I., Adebowale, K. O. (2010). Modeling of fixed-bed column studies for the adsorption of cadmium onto novel polymer–clay composite adsorbent. Journal of Hazardous Materials 179 (1-3 ) 415-423.  

19. Unuabonah E. I., Olu-Owolabi B. I., Oladoja N. A., Ofomaja A. E., Yang L. Z. (2010).  Pb/Ca ion exchange on Kaolinite clay modified with phosphates. Journal of Soils and Sediments 10(6): 1103-1114

20. Olu-owolabi B. I., Popoola D. B., Unuabonah E. I. (2010). Removal of Cu2+ and Cd2+ from aqueous solution by Bentonite clay modified with binary mixture of Goethite and Humic Acid.  Water, Air and Soil Pollution 211(1-4): 459-474

21. Ofomaja A.E., Unuabonah E.I., Oladoja A.N. (2010). Competitive modeling for the biosorptive removal of copper and lead ions from aqueous solution by mansonia wood sawdust. Bioresource Technology 101(11): 3844- 3852.

22. Unuabonah E.I., Adie G.U., Onah L. O., Adeyemi O. G. (2009). Multistage optimization of the adsorption of Methylene Blue Dye onto defatted Carica papaya seeds. Chemical  Engineering Journal 155: 567–579

23.  Unuabonah E.I., Adebowal K.O. (2009). Optimization Of Kinetic Data For Two-Stage Batch Adsorption Of Pb(II) Ions Onto Tripolyphosphate-Modified Kaolinite Clay. Journal of Chemical Technology and Biotechnology 84: 1726–1735.  

24. Unuabonah E.I., Olu-Owolabi B.I., Okoro D., Adebowale K.O., (2009). Comparison Of Two-Stage Sorption Design Models For The Removal Of Lead Ions By Polyvinylalcohol Modified Kaolinite Clay. Journal of Hazardous Materials 171: 215–221.

25. Unuabonah E.I., Adebowale K.O., and Ofomaja A.E. (2009). Two-stage batch adsorber design: A time-dependent Langmuir model for adsorption of Pb2+ and Cd2+ onto modified Kaolinite clay. Water, Air and Soil Pollution 200 (1-4): 133-145.

26. Unuabonah E.I., Olu-Owolabi B.I., Adebowale K.O., Yang L.Z. (2008). Removal of Lead and Cadmium from aqueous solution by Polyvinyl alcohol-modified Kaolinite clay: a novel nanoclay adsorbent. Adsorption Science and Technology 26(6):383-405.

27. *Unuabonah E.I., Adebowale K.O., Olu-Owolabi B.I., Yang L.Z. (2008). Comparison of sorption of Pb2+ and Cd2+ on kaolinite clay and polyvinyl alcohol-modified kaolinite clay. Adsorption 14 (6):791-803.

28.  Adebowale K.O., Unuabonah E.I., and Olu-Owolabi B.I. (2008). Kinetic and thermodynamic aspects of the adsorption of Pb2+ and Cd2+ ions on tripolyphosphate-modified kaolinite clay. Chemical Engineering Journal 136: 99-107.

29. Adebowale K.O., Unuabonah E.I., Olu-Owolabi B.I. (2008). Erratum to “Kinetic and thermodynamic Aspects of the adsorption of Pb2+ and Cd2+ ions on tripolyphosphate-modified kaolinite clay[Chem. Eng. J., 136:199-107]”. Chemical Engineering Journal 142(1): 133.

30. Unuabonah E. I., Adebowale K.O. and Dawodu F.A. (2008). Equilibrium, Kinetic and sorber design studies on the adsorption of Aniline blue dye by sodium tetraborate-modified Kaolinite Clay adsorbent. Journal of Hazardous Materials 157:397-409.

31. Unuabonah E.I., Adebowale K.O., Olu-Owolabi B.I., Yang L.Z. and Kong L.X. (2008). Adsorption of Pb (II) and Cd (II) from aqueous solution onto Sodium tetraborate-modified Kaolinite clay: Equilibrium and thermodynamic studies. Hydrometallurgy 93:1-9.

32. Unuabonah, E.I., Olu-Owolabi, B.I., Adebowale, K.O., and Ofomaja, A.E. (2007).  Adsorption of lead and cadmium ions from aqueous solutions by tripolyphosphate-impregnated Kaolinite clay. Colloids and Surfaces A: Physicochem. Eng. Aspects 292, 202–211.

33. Unuabonah E.I., Adebowale K.O. and Olu-Owolabi B.I. (2007): Kinetic and Thermodynamic studies of the adsorption of lead (II) ions onto phosphate-modified Kaolinite clay. Journal of Hazardous Materials 144, 386-395.

34. Adebowale K.O., Unuabonah E.I. and Olu-Owolabi B.I. (2006). The Effect of some Operating Variables in the Adsorption of Lead and Cadmium ions unto Modified Kaolin Clay. Journal of Hazardous Materials B134, 130-139.

35. Ofomaja A.E., Unuabonah E.I. and Oladoja N.A. (2005). Removal of Lead from Aqueous Solution by Palm Kernel Fibre. South Africa Journal of Chemistry 58, 127-130.

36. Adebowale K.O., Unuabonah E. I. and Olu-Owolabi B.I. (2005). Adsorption of some heavy metal ions on sulfate- and phosphate-modified Kaolin. Applied Clay Science 29, 145-148.