Document Details

Document Type : Article In Journal 
Document Title :
Parameters controlling the photocatalytic performance of ZnO/Hombikat TiO2 composites
Parameters controlling the photocatalytic performance of ZnO/Hombikat TiO2 composites
 
Subject : Chemistry 
Document Language : English 
Abstract : Commercial TiO2 (Hombikat, UV-100) was impregnated with different loadings of zinc nitrate solution and subsequently calcined at different temperatures in order to obtain a stable homogeneous solid composite of ZnO/TiO2. The prepared samples were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), high resolution transmission electron microscopy (HR-TEM), UV-vis and Raman spectroscopy, inductively coupled plasma mass spectroscopy (ICP), X-ray photoelectron spectroscopy (XPS) as well as N2 adsorption and desorption measurements. Results show that ZnO was incorporated within the TiO2 crystals and did not form a separate bulky phase or metallic zinc. Moreover, the calcination temperature dramatically modifies the texture properties of the prepared samples compared with original Hombikat TiO2. The photocatalytic performance of the prepared samples was evaluated by monitoring the degradation of methyl orange dye under black light illumination. Three main parameters were studied; ZnO loading, surface area and initial pH of the methyl orange solution. The variation in ZnO loading appears to have less influence on the catalytic activity than either the surface area or the pH. 
ISSN : 1010-6030 
Journal Name : Journal of Photochemistry and Photobiology A: Chemistry 
Volume : 228 
Issue Number : 1 
Publishing Year : 1433 AH
2012 AD 
Article Type : Article 
Added Date : Saturday, February 11, 2012 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
Mohamed S HamdyHamdy, Mohamed SResearcherDoctorate 
Patrick NickelsNickels, Patrick ResearcherDoctorate 
إسلام حمدي عبد المقصودAbd El Maksod, Islam HamdyResearcherDoctorateislam_9000@yahoo.com
Hang ZhouZhou, Hang ResearcherDoctorate 
السيد حسيني المسلميEl-Mossalamy, El-sayed HResearcherDoctoratesbdmina@yahoo.com
عبدالرحمن عبيد اليوبيAl-Youbia, Abdulrahman ObaidResearcherDoctorateaalyoubi@kau.edu.sa
Stephen LynchLynch, Stephen ResearcherDoctorate 
Arokia NathanNathan, Arokia ResearcherDoctorate 
Geoff ThorntonThornton, Geoff ResearcherDoctorateg.thornton@ucl.ac.uk

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