Flower-like Bi2O2CO3: Facile synthesis and their photocatalytic application in treatment of dye-containing wastewater

被引：162

作者：

Chen, Lang ^{[1
]}

Huang, Rui ^{[1
]}

Yin, Shuang-Feng ^{[1
]}

Luo, Sheng-Lian ^{[1
]}

Au, Chak-Tong ^{[1
,2
]}

机构：

[1] Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China

[2] Hong Kong Baptist Univ, Dept Chem, Kowloon Tong, Hong Kong, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2012年 / 193卷

关键词：

Bi2O2CO3; Nanoflower; Photocatalyst; Photodegradation; Synthesis; BIOX X; BI2WO6; TIO2; CARBON; NANOSTRUCTURES; DECOMPOSITION; ARCHITECTURES; DEGRADATION; EFFICIENT; BEHAVIOR;

D O I：

10.1016/j.cej.2012.04.023

中图分类号：

X [环境科学、安全科学];

学科分类号：

083001 [环境科学];

摘要：

A facile, fast and low-cost method was developed for the synthesis of novel flower-like Bi2O2CO3 in an aqueous medium with the assistance of cetyltrimethylammonium bromide (CTAB). The as-synthesized flower-like Bi2O2CO3 was characterized using the powder X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscope, UV-vis diffuse reflectance spectra, and N-2 adsorption-desorption techniques. It was found that the nanomaterial exhibited high photocatalytic efficiency towards the degradation of wastewater dyes (rhodamine-B, methylene orange, crystal violet or their mixture) under UV-vis light irradiation. There was only a slight decrease in photocatalytic activity after 5-time recycling (with above 99% removal), suggesting that the catalyst is highly stable and reusable. The relationship between structure and catalytic performance of the flower-like Bi2O2CO3 was investigated. It is deduced that the high photocatalytic activity can be attributed to the flower-like morphology, thin nanopetals, low band gap, and large specific surface area. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：123 / 130

页数：8

共 47 条

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