UV-light induced photocatalytic decolorization of Rhodamine 6G molecules over BiOCl from aqueous solution

被引：126

作者：

Gondal, M. A. ^{[1
,2
]}

Chang, X. F. ^{[2
,3
]}

Yamani, Z. H. ^{[1
,2
]}

机构：

[1] King Fahd Univ Petr & Minerals, Dept Phys, Laser Res Grp, Dhahran 31261, Saudi Arabia

[2] King Fahd Univ Petr & Minerals, Ctr Excellence Nanotechnol, Dhahran 31261, Saudi Arabia

[3] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Dept Appl Chem, Nanjing 211100, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2010年 / 165卷 / 01期

关键词：

BiOCl; Sorption kinetics; Sorption isotherm; Photocatalytic; Rhodamine; 6G; Pulsed laser; Mulliken electronegativity; PCP-NA; DEGRADATION; DRIVEN; BR; CL; REMOVAL; SEMICONDUCTORS; ADSORPTION; COMPOSITE; KINETICS;

D O I：

10.1016/j.cej.2010.09.025

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The sorption and photocatalytic decolorization (under irradiation of monochromaticitic 355 nm-pulsed-laser) behaviors of Rhodamine 6G (Rh 6G) in presence of BiOCl semiconductor in aqueous solution were studied in this paper The sorption kinetic and isotherm behaviors of Rh 6G over BiOCl catalyst were investigated and discussed through pseudo-second-order/intraparticle diffusion models and Langmuir/Freundlich models respectively The effect of critical parameters such as catalyst dosage initial concentration of Rh 6G and laser pulse energy on the photocatalytic decolorization process was investigated The photocatalytic decolorization and photonic efficiency of BiOCl was compared with standard catalyst (TiO2) and the obtained results were discussed in terms of their band edge position Finally the chemical stability of BiOCl photocatalyst was studied by measuring the X-ray diffraction (XRD) pattern of BiOCl samples after the reaction (C) 2010 Elsevier B V All rights reserved

引用

页码：250 / 257

页数：8

共 44 条

[21] ENVIRONMENTAL APPLICATIONS OF SEMICONDUCTOR PHOTOCATALYSIS [J].