Novel Ternary Heterogeneous Reduction Graphene Oxide (RGO)/BiOCl/TiO2 Nanocomposites for Enhanced Adsorption and Visible-Light Induced Photocatalytic Activity toward Organic Contaminants

Autor:	Xueying Xian, Xiangyi Dai, Huojiao Zhong, Qiongshan Zhang, Yong Li, Zhanxin Jing
Rok vydání:	2020
Předmět:	Materials science Diffuse reflectance infrared fourier transform RGO/BiOCl/TiO2 02 engineering and technology 010402 general chemistry lcsh:Technology 01 natural sciences Article law.invention chemistry.chemical_compound Adsorption X-ray photoelectron spectroscopy law nanocomposites Rhodamine B Methyl orange General Materials Science Fourier transform infrared spectroscopy lcsh:Microscopy visible light lcsh:QC120-168.85 lcsh:QH201-278.5 lcsh:T photocatalyst Graphene 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry Chemical engineering lcsh:TA1-2040 Photocatalysis lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering lcsh:Engineering (General). Civil engineering (General) 0210 nano-technology lcsh:TK1-9971
Zdroj:	Materials Volume 13 Issue 11 Materials, Vol 13, Iss 2529, p 2529 (2020)
ISSN:	1996-1944
DOI:	10.3390/ma13112529
Popis:	Herein, we describe a simple and cost-effective design for the fabrication of a novel ternary RGO/BiOCl/TiO2 nanocomposites through a simple hydrothermal process. The prepared nanocomposites were characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), X-ray diffraction (XRD), UV&ndash vis diffuse reflectance spectroscopy (UV&ndash vis DRS) and N2 adsorption&ndash desorption analysis. Organic contaminants&mdash such as methylene blue (MB), methyl orange (MO), rhodamine B (RhB) and amido black-10B (AB-10B)&mdash were employed as the target pollutants to evaluate the adsorption capacity and photocatalytic activity of RGO/BiOCl/TiO2 nanocomposites. From experimental data, it was also found that the amount of TiO2 impressed the photocatalytic performance, and the nanocomposites with 10% of TiO2 showed the best photocatalytic activity. The improved photocatalytic performance may be mainly due to the narrow band gap, and the charge separation and migration of RGO. Moreover, good recyclability was obtained from RGO/BiOCl/TiO2 nanocomposites, and scavenger tests indicated that photogenerated holes were the main active species in the reaction system. Therefore, the prepared RGO/BiOCl/TiO2 nanocomposites have broad applications foreground in pollutants purification.
Databáze:	OpenAIRE
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