Photocatalytic degradation of malathion by TiO2and Pt-TiO2nanotube photocatalyst and kinetic study

Autor:	Youhai Jing, Qian Zhang, Angus Shiue, Chang-Tang Chang, Yu-Min Chang, Tong Ouyang, Cheng-Fang Lin
Rok vydání:	2013
Předmět:	Aqueous solution Materials science Kinetics chemistry.chemical_element General Medicine Pollution Catalysis Adsorption chemistry Chemical engineering Environmental chemistry Desorption Photocatalysis Photodegradation Food Science Titanium
Zdroj:	Journal of Environmental Science and Health, Part B. 48:686-692
ISSN:	1532-4109 0360-1234
DOI:	10.1080/03601234.2013.778623
Popis:	Photocatalytic degradation of malathion, is investigated using Titanium Nanotubes (TNT) and Pt modified TNT (Pt-TNT) photocatalyst in an aqueous solution under 365 nm UV lamp irradiation. The TNT photocatalyst is prepared on pretreated strong alkaline solution via the hydrothermal method. The Pt-TNT was prepared by light deposition. The variations in morphology, formation mechanism, phase structure, and pore structure of TNT and Pt-TNT are characterized using UV-Vis, transmission electron microscopy (TEM), and N2 adsorption/desorption isotherm analyzer, respectively. The effect of the initial malathion concentration, reaction temperature, catalyst loading, solution pH value, irradiation time and Pt loading are studied and the optimized values are obtained. Moreover, the photodegradation performance and kinetics of malathion onto TNT and Pt-TNT are also examined with the aid of model analysis by kinetic data. The results show that under acid conditions, the performance of photocatalysts for treating malath...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2d4b1eefaf8ab85077abdb0c9734abdb https://doi.org/10.1080/03601234.2013.778623 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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