Photocatalytic Activity of MOF-derived Cu2O/Cu/C/Ag Porous Composites

IF 0.8 4区 化学 Q4 CHEMISTRY, MULTIDISCIPLINARY
Wei Chang, Dandan Zheng, Chaosheng Zhao, Yixin Yang
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引用次数: 8

Abstract

Cu 2 O/Cu/C/Ag porous composite was synthesized by heat-treatment and wet-chemical method using a typical metal-organic framework (Cu-BTC) as  precursor. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectrometry (EDS) and  ultraviolet-visible spectroscopy (UV-vis). The results showed that the original structure of Cu-BTC was retained by high temperature calcination in nitrogen atmosphere. Uniform doping of Cu, C and Ag provided a triple trapping of photogenerated electron hole pairs and the Cu 2 O/Cu/C/Ag exhibited an enhanced photocatalytic activity for degradation of Congo Red under visible light irradiation. Heat-treatment of the MOFs with high temperature is a facile and effective way for preparation of photocatalytic composite with desirable properties. Keywords : Photocatalyst, cuprous oxide, dye degradation, Cu-BTC.
mof衍生的Cu2O/Cu/C/Ag多孔复合材料的光催化活性
以典型金属有机骨架(Cu- btc)为前驱体,采用热处理和湿化学法制备了Cu 2o /Cu/C/Ag多孔复合材料。采用x射线衍射(XRD)、扫描电镜(SEM)、能谱分析(EDS)和紫外可见光谱(UV-vis)对样品进行了表征。结果表明,在氮气气氛中高温煅烧后,Cu-BTC仍保持原有结构。Cu、C和Ag的均匀掺杂形成了光生电子空穴对的三重捕获,Cu 2o /Cu/C/Ag在可见光照射下对刚果红的降解表现出增强的光催化活性。对mof进行高温热处理是制备具有理想性能的光催化复合材料的一种简便有效的方法。关键词:光催化剂,氧化亚铜,染料降解,Cu-BTC
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来源期刊
CiteScore
3.10
自引率
0.00%
发文量
6
审稿时长
>12 weeks
期刊介绍: Original work in all branches of chemistry is published in the South African Journal of Chemistry. Contributions in English may take the form of papers, short communications, or critical reviews.
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