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Photodegradation of methyl orange by photocatalyst of CNTs/P-TiO2 under UV and visible-light irradiation

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成果类型:
期刊论文
作者:
Wang, Shaohua;Zhou, Shaoqi
通讯作者:
Zhou, S.(fesqzhou@scut.edu.cn)
作者机构:
[Zhou, Shaoqi; Wang, Shaohua] School of Environmental Science and Engineering, South China University of Technology, Guangzhou 510006, China
[Zhou, Shaoqi] Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters, South China University of Technology, Guangzhou 510006, China
[Zhou, Shaoqi] Key Laboratory of Environmental protection, Eco-Remediation of Guangdong Regular Higher Education Institutions, South China University of Technology, Guangzhou 510006, China
[Zhou, Shaoqi] State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510641, China
[Wang, Shaohua] School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, China
通讯机构:
[Zhou, Shaoqi] S China Univ Technol, Sch Environm Sci & Engn, Guangzhou 510006, Guangdong, Peoples R China.
语种:
英文
关键词:
Composite catalysts - FTIR - Hydrothermal - Hydrothermal methods - Methyl Orange - Nano scale - Nanocomposite catalyst - Optimal mass ratio - P-doped - Phosphorus doping - Photocatalytic activities - Physicochemical property - Synergetic effect - TEM - TiO - UV irradiation - UV- and - UV-vis-DRS - Visible light - Visible-light irradiation - XPS - XRD
期刊:
Journal of hazardous materials
ISSN:
0304-3894
年:
2011
卷:
185
期:
1
页码:
77-85
文献类别:
WOS:Article;EI:Journal article (JA)
所属学科:
ESI学科类别:工程学;WOS学科类别:Engineering, Civil;Engineering, Environmental;Environmental Sciences
入藏号:
WOS:000289446700012;EI:20104713418864;PMID:20934250
基金类别:
State Ministry of Science and Technology [2008BAE64B05, 2006BAJ04A12-4]; State Key Laboratory of Subtropical Building Science of China [2008ZA09, 2009ZB05]; Department of Science and Technology of Guangdong Province [2007A032500005]
机构署名:
本校为其他机构
院系归属:
医药化工学院
摘要:
A novel nanoscale photocatalyst CNTs/P-TiO<inf>2</inf> was successfully prepared by hydrothermal method. The morphology and the physicochemical properties of the prepared samples were investigated using TEM, XPS, XRD, BET, FTIR, TG-DSC and UV-vis DRS spectroscopy. The photocatalytic activity was evaluated by degradation of methyl orange (MO) dye. The results demonstrated that CNTs/P-TiO<inf>2</inf> nanoparticles could effectively photodegrade MO not only under UV irradiation but also under visible-light (VL) irradiation. The MO degradation performance on CNTs/P-TiO<inf>2</inf> was superior to that of the commercial P25. The optimal mass ratio of CNTs to P-TiO<inf>2</inf> in the nanocomposite catalyst was 5:100. The synergetic effect was discussed in terms of different roles played by phosphorus doping and introducing CNTs into the composite catalysts. &copy;2010.
参考文献:
An GM, 2007, CARBON, V45, P1795, DOI 10.1016/j.carbon.2007.04.034
Asahi R, 2001, SCIENCE, V293, P269, DOI 10.1126/science.1061051
Cong Y, 2007, J PHYS CHEM C, V111, P6976, DOI 10.1021/jp0685030
FARIA JL, 2008, CARBON MAT CATALYSIS, V579
FUJISHIMA A, 1972, NATURE, V238, P37, DOI 10.1038/238037a0

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