A Highly Photoactive S, Cu-Codoped Nano-TiO2 Photocatalyst: Synthesis and Characterization for Enhanced Photocatalytic Degradation of Neutral Red

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	A Highly Photoactive S, Cu-Codoped Nano-TiO2 Photocatalyst: Synthesis and Characterization for Enhanced Photocatalytic Degradation of Neutral Red
	Yan, Chunyan 1; Yi, Wentao 1; Yuan, Hongmei 1; Wu, Xiaoxia 1; Li, Faqiang 2
	2014-07-01
发表期刊	ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
卷号	33 期号:2 页码:419-429
关键词	Photocatalytic Degradation Nano Tio2 Sol-gel s Cu-codoping Neutral Red
摘要	Sulfur and copper codoped TiO2 (S, Cu-TiO2) were prepared by sol-gel process. And the samples were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), UV-vis diffuse reflectance spectroscopy (DRS), and N-2 adsorption (BET method). The XRD results showed that the S, Cu-codoped samples calcined below 550 degrees C were pure anatase crystal structure which was in accordance with the FTIR spectra. Red-shift in the UV-vis spectrum of S, Cu-codoped catalysts was observed, and SEM micrographs revealed that the codoped samples consisted of agglomerated nanoparticles with average particle size of 40-70 nm which was smaller than that of pure TiO2. The N-2 adsorption measurements showed that the S, Cu-codoped samples were mesoporous structures. The photocatalytic performance of the codoped samples was evaluated by monitoring the degradation of neutral red (NR) under UV and visible light illumination. The results showed that 0.2% S, Cu-TiO2 calcined at 450 degrees C had the highest photocatalytic activity among all samples. And the photocatalytic degradation rate of NR solution with a concentration of 20 mg L-1 could reach 98.4% under UV illumination in 120 min in the presence of 0.75 g L-1 catalyst and H2O2 with initial concentration of 0.2 mmol L-1. The kinetic study showed that this photocatalytic process coincided with the Langmuir-Hinshelwood (L-H) pseudo first order reaction model. The reusability study showed that 0.2% S, Cu-TiO2 was highly stable up to third run. Therefore, the S, Cu-codoped TiO2 is a promising candidate for degradation of NR containing wastewater. (c) 2013 American Institute of Chemical Engineers Environ Prog, 33: 419-429, 2014
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/5725
专题	青海盐湖研究所知识仓储中国科学院青海盐湖研究所
作者单位	1.Zaozhuang Univ, Coll Chem Chem Engn & Mat Sci, Dept Chem, Zaozhuang 277160, Peoples R China 2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Dept Chem, Xining 810008, Peoples R China
推荐引用方式 GB/T 7714	Yan, Chunyan,Yi, Wentao,Yuan, Hongmei,et al. A Highly Photoactive S, Cu-Codoped Nano-TiO2 Photocatalyst: Synthesis and Characterization for Enhanced Photocatalytic Degradation of Neutral Red[J]. ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY,2014,33(2):419-429.
APA	Yan, Chunyan,Yi, Wentao,Yuan, Hongmei,Wu, Xiaoxia,&Li, Faqiang.(2014).A Highly Photoactive S, Cu-Codoped Nano-TiO2 Photocatalyst: Synthesis and Characterization for Enhanced Photocatalytic Degradation of Neutral Red.ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY,33(2),419-429.
MLA	Yan, Chunyan,et al."A Highly Photoactive S, Cu-Codoped Nano-TiO2 Photocatalyst: Synthesis and Characterization for Enhanced Photocatalytic Degradation of Neutral Red".ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY 33.2(2014):419-429.