Adsorption and degradation performance of Rhodamine B over BiOBr under monochromatic 532 nm pulsed laser exposure

被引：101

作者：

Gondal, Mohammed Ashraf ^{[1
,2
]}

Chang, Xiaofeng ^{[1
,2
,3
]}

Ali, Mohammad Ashraf ^{[4
]}

Yamani, Zain Hassan ^{[1
,2
]}

Zhou, Qin ^{[5
]}

Ji, Guangbin ^{[3
]}

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

[4] King Fahd Univ Petr & Minerals, Res Inst, Ctr Refining & Petrochem, Dhahran 31261, Saudi Arabia

[5] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China

来源：

APPLIED CATALYSIS A-GENERAL | 2011年 / 397卷 / 1-2期

关键词：

BiOBr; Photodegradation; 532; nm-pulsed-laser; Sorption; Rhodamine B; VISIBLE-LIGHT IRRADIATION; PHOTOCATALYTIC DEGRADATION; ETHANOIC ACID; NANOPLATE MICROSPHERES; DRIVEN PHOTOCATALYST; INSULATOR OXIDES; TIO2; DISPERSIONS; I PHOTOCATALYSTS; AQUEOUS-SOLUTION; DYE POLLUTANTS;

D O I：

10.1016/j.apcata.2011.02.033

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

The adsorption (under dark condition) and photodegradation behaviors of Rhodamine B molecules on BiOBr under visible (532 nm) pulsed laser exposure were studied and reported for the first time. The adsorption kinetics/isotherm behaviors and thermodynamic process (adsorption dynamical parameters) occurred on as-prepared BiOBr were investigated. The photodegradation mechanisms, effects of BiOBr dosage and pulsed laser energy on dye removal efficiency in the presence of BiOBr particles were studied as well. Furthermore, the photodegradation of other kinds of Rhodamine dyes such as Rhodamine 6G. Sulforhodamine B and Sulforhodamine 640 were initially investigated and compared under 532 nm pulsed laser exposure. The study also demonstrated that the dissolved oxygen plays a very significant role in the photo-catalytic decomposition of Rhodamine. The BiOBr catalyst was found intact even under acidified conditions showing good stability of the catalyst. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：192 / 200

页数：9

共 49 条

[1]

Efficient Photocatalytic Removal of NO in Indoor Air with Hierarchical Bismuth Oxybromide Nanoplate Microspheres under Visible Light [J].