Photocatalytic Oxidation of Reactive Red 22 in Aqueous Solution Using La2Ti2O7 Photocatalyst期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Photocatalytic Oxidation of Reactive Red 22 in Aqueous Solution Using La2Ti2O7 Photocatalyst

Authors:	Young Ku Ling-Chi Wang Chih-Ming Ma Yiang-Chen Chou

Institution:	1. Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan 2. Department of Cosmetic Application & Management, St. Mary??s Medicine Nursing and Management College, San-shing Shiang, Yi-lan, Taiwan

Abstract:	This study was focused on the application of a highly doped layered perovskite, La₂Ti₂O₇, as the photocatalyst for the photocatalytic decomposition of an azo dye, Reactive Red 22 (RR22). The temporal behavior of the photocatalytic decomposition of RR22 in aqueous solution by the UV/La₂Ti₂O₇ with a batch photoreactor operated in a recirculation mode was studied under various operating conditions including solution pH, light intensity, and La₂Ti₂O₇ loading. The decomposition of RR22 in aqueous solution by La₂Ti₂O₇ photocatalytic process was found to be feasible. An empirical kinetic equation was developed for modeling the photocatalytic decomposition of RR22 in aqueous solution using UV/La₂Ti₂O₇ photocatalytic processes.

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