Synthesis of flower-like SnO2 single crystals and its enhanced photocatalytic activity

被引：45
作者：
Dai, Shudong [1 ]
Yao, Zhongliang [2 ]
机构：
[1] Zhangzhou Normal Univ, Dept Chem & Environm Sci, Zhangzhou 363000, Peoples R China
[2] Fujian Normal Univ, Fuqing Branch, Dept Biol & Chem Engn, Fuqing 350300, Fujian, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2012年 / 258卷 / 15期
关键词：
SnO2; Flower-like; Environmental performance; Photocatalytic mechanism; NANOSTRUCTURES; NANOPARTICLES; DEGRADATION; DYES;
D O I：
10.1016/j.apsusc.2012.02.065
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Flower-like SnO2 single crystals were successfully synthesized using hydrothermal method and characterized by X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Brunauer-Emmett-Teller (BET), field emission scanning electron microscopy (FESEM) and UV-vis diffuse reflectance (DRS). As-synthesized flower-like SnO2 single crystals exhibited higher photoactivity (about 2.2 times) than granular SnO2 for degradation of Rhodamine B (RhB) dye. The trapping experiment showed that the holes (h(+)) and hydroxyl radical ((OH)-O-center dot) were the main active species in the photodegradation process. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：5703 / 5706
页数：4
相关论文
共 17 条
[1]   Semiconductor-based Photocatalytic Hydrogen Generation [J].
Chen, Xiaobo ;
Shen, Shaohua ;
Guo, Liejin ;
Mao, Samuel S. .
CHEMICAL REVIEWS, 2010, 110 (11) :6503-6570
[2]   One-Step Synthesis of the Nanostructured AgI/BiOI Composites with Highly Enhanced Visible-Light Photocatalytic Performances [J].
Cheng, Hefeng ;
Huang, Baibiao ;
Dai, Ying ;
Qin, Xiaoyan ;
Zhang, Xiaoyang .
LANGMUIR, 2010, 26 (09) :6618-6624
[3]   Investigation of Photocatalytic Effect of SnO2 Nanoparticles Synthesized by Hydrothermal Method on the Decolorization of Two Organic Dyes [J].
Esen, Bekir ;
Yumak, Tugrul ;
Sinag, Ali ;
Yildiz, Tugba .
PHOTOCHEMISTRY AND PHOTOBIOLOGY, 2011, 87 (02) :267-274
[4]   Synthesis of Tin Dioxide Octahedral Nanoparticles with Exposed High-Energy {221} Facets and Enhanced Gas-Sensing Properties [J].
Han, Xiguang ;
Jin, Mingshang ;
Xie, Shuifen ;
Kuang, Qin ;
Jiang, Zhiyuan ;
Jiang, Yaqi ;
Xie, Zhaoxiong ;
Zheng, Lansun .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2009, 48 (48) :9180-9183
[5]   ENVIRONMENTAL APPLICATIONS OF SEMICONDUCTOR PHOTOCATALYSIS [J].
HOFFMANN, MR ;
MARTIN, ST ;
CHOI, WY ;
BAHNEMANN, DW .
CHEMICAL REVIEWS, 1995, 95 (01) :69-96
[6]   TiO2-assisted photocatalytic degradation of azo dyes in aqueous solution: kinetic and mechanistic investigations - A review [J].
Konstantinou, IK ;
Albanis, TA .
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY, 2004, 49 (01) :1-14
[7]   Nanowires and nanowire-nano sheet junctions of SnO2 nanostructures [J].
Qu, D. M. ;
Yan, P. X. ;
Chang, J. B. ;
Yan, D. ;
Liu, J. Z. ;
Yue, G. H. ;
Zhuo, R. F. ;
Feng, Ht .
MATERIALS LETTERS, 2007, 61 (11-12) :2255-2258
[8]   Porous SnO2 hierarchical nanosheets: hydrothermal preparation, growth mechanism, and gas sensing properties [J].
Sun, Peng ;
Zhao, Wan ;
Cao, Yang ;
Guan, Yue ;
Sun, Yanfeng ;
Lu, Geyu .
CRYSTENGCOMM, 2011, 13 (11) :3718-3724
[9]   ENHANCED RATES OF PHOTOCATALYTIC DEGRADATION OF AN AZO-DYE USING SNO2/TIO2 COUPLED SEMICONDUCTOR THIN-FILMS [J].
VINODGOPAL, K ;
KAMAT, PV .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1995, 29 (03) :841-845
[10]   V-shaped tin oxide nanostructures featuring a broad photocurrent signal: An effective visible-light-driven photocatalyst [J].
Wang, Geng ;
Lu, Wu ;
Li, Jinghong ;
Choi, Jiyoung ;
Jeong, Yeonseok ;
Choi, Sung-Yool ;
Park, Jong-Bong ;
Ryu, Min Ki ;
Lee, Kwangyeol .
SMALL, 2006, 2 (12) :1436-1439
12