Prof. Pradeep M. Jayaweera

Senior Professor 
B.Sc. (SJP, Sri Lanka), Ph.D. ( Belfast), M.I.Chem.C.

Division:
Physical Chemistry

Biosketch:
• B.Sc. (Special, Chemistry), University of Sri Jayewardenepura, Sri Lanka (1993)
• Ph.D. in Chemistry, Queen’s University of Belfast, UK. (1996)
• Visiting Scholar, Dept. of Chemistry, Auckland University, New Zealand. (2005)
• Postdoctoral Scholar, Nanoscience and Nanotechnology Institute at University of Iowa, USA (2008/09)
• Japan Society for the Promotion of Science (JSPS) Fellow, Department of Electronics and Materials Science, Faculty of Engineering, Shizuoka University. (2015)
• Associate Member, Australasian Institute of Mining and Metallurgy.

Undergraduate Teaching:
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• CHE 207 1.0 Phase Equilibria and Surface Chemistry
• CHE 361 1.0 Advanced Chemical Kinetics
• CHE 369 1.0 Advanced Molecular Photochemisrty
• CHE 481 1.0 Surface Techniques

Research interest :  

Photochemistry and photophysics of labile metal complexes, Raman, Surface Enhanced Raman and Excited State studies of complexes. Surface chemistry of nano particles: applications and implications to nanoscience and nanotechnology. Spectroscopic studies of metal colloids, Sols and MELLFs, Reaction Kinetics, Corrosion/Electrochemistry, Dye sensitized nano-porous photovoltaic devices, Studies on alternative energies.
Group Website: http://pradeepjayaweera.pbworks.com 

Selected Publications:

D.D.D.H Alwis, U.G. Chandrika, P.M. Jayaweera, ” Spectroscopic studies of neutral and chemically oxidized species of β-carotene, lycopene and norbixin in CH2Cl2: Fluorescence from intermediate compounds” Journal of Luminescence, Available online 16 September 2014. DOI: 10.1016/j.jlumin.2014.08.036.

Charith E Nanayakkara , Pradeep M. Jayaweera ,Jonas Baltrusaitis , and Vicki H Grassian, ” Photochemistry of Adsorbed Nitrate Formed From Nitric Acid Adsorption on α-Fe2O3 Particle Surfaces: The Role of Adsorbed Water in the Formation of Nitrogen-Reduced Surface Species”
J. Phys. Chem. A, 2014, 118 (1), pp 158–166 DOI: 10.1021/jp409017m

Jayaweera, P M; Jayaweera, P V V; Jayasundara, U L; Jayaweera, C D; Peiris, G S; Premalal, E V A, “Photo Induced Reductive Leaching of Iron from Ilmenite in Hydrochloric Acid Solutions” Mineral Processing and Extractive Metallurgy, Volume 120, Number 3, 2011 , pp. 191-196(6)

Jonas Baltrusaitis, Pradeep M. Jayaweera and Vicki H. Grassian, ” Sulfur Dioxide Adsorption on TiO2 Nanoparticles: Influence of Particle Size, Coadsorbates, Sample Pretreatment and Light on Surface Speciation and Surface Coverage” J. Phys. Chem. C, 2011, 115 (2), pp 492–500.

P.V.V. Jayaweera, P.K.D.Duleepa P. Pitigala, Jia Feng Shao, Kirthi Tennakone, A. G. Unil Perera, Pradeep M. Jayaweera and Jonas Baltrusaitis, “Low-Cost ZnO-Based Ultraviolet–Infrared Dual-Band Detector Sensitized With PbS Quantum Dots”, IEEE TRANSACTIONS ON ELECTRON DEVICES, 2010

Gayan Rubasinghege, Sherrie Elzey, Jonas Baltrusaitis, Pradeep M. Jayaweera and Vicki H. Grassian, “Reactions on Atmospheric Dust Particles: Surface Photochemistry and Size-Dependent Nanoscale Redox Chemistry”; J. Phys. Chem. Lett., 2010, 1, pp 1729–1737

Baltrusaitis, J., Jayaweera, P.M., Grassian, V.H., “XPS Study of NO2 Adsorption on Metal Oxide Particle Surfaces Under Different Environmental Conditions”, Physical Chemistry Chemical Physics, 2009, 11, 8295.

Priyadarshana, W.M.G., Jayaweera, P.M., “Photo-control Reversible Removal of Coordinated Fe2+ Ions from TiO2 Surface Adsorbed Alizarin Comlexone: An Iron Storage Device” Colloids and Surfaces-Physicochemical and Engineering Aspects, 2009, 344, 144.

Jayaweera, P.M., Sanjeewa, T., and Tennakone, K., “Formation of Ion Associated Complexes between SPADNS and Rhodamine B: Antenna Effect and Enhancement Photovoltaic Properties” Solar Energy and Solar Materials., 2007, 91, 944.

Jayaweera, P.M., Quah, E.L., and Idriss, H., “Photoreaction of Ethanol on TiO2(110) Single Crystal Surface” J. Phys. Chem. C., 2007, 111, 1764.

 CONTACT INFORMATION

Telephone Number: +94 112 758457

Web : http://scholar.sjp.ac.lk/pradeep

Web : pradeepjayaweera.pbworks.com

Email Address: pradeep@sjp.ac.lk

Room : 2L002