Fe-CuS/还原氧化石墨烯(RGO)的制备及其光催化性能
Synthesis of Fe-CuS/RGO by Solvothermal Method with High Visible Photocatalytic Activity
作者单位E-mail
杨明荣 上海工程技术大学服装学院, 上海 201620  
沈勇 上海工程技术大学服装学院, 上海 201620 shenyong@sues.edu.cn 
胡小赛 上海工程技术大学服装学院, 上海 201620  
张惠芳 上海工程技术大学服装学院, 上海 201620  
王黎明 上海工程技术大学服装学院, 上海 201620  
徐丽慧 上海工程技术大学服装学院, 上海 201620  
邢亚均 上海纺织科学研究院, 上海 201620  
摘要: 以氯化铜(CuCl2·2H2O)、硫脲((NH22CS,Tu)、1,2-丙二醇(1,2-PG)、氯化铁(FeCl3·6H2O)及氧化石墨烯(GO)为原料,通过溶剂热法制备了具有可见光活性的Fe-CuS/RGO复合材料。采用XRD、SEM、TEM、Raman、XPS、TG、UV-Vis等手段对产品进行了表征,并以亚甲基蓝(MB)为目标降解物对其可见光催化活性进行了研究。光催化结果表明:在汞灯(150 W)下照射140 min,CuS、CuS/RGO和Fe-CuS/RGO对MB的脱色率分别为41.2%、81.5%和90.6%。Fe-CuS/RGO对MB的降解效率较CuS/RGO和CuS有较大提升,可能原因是Fe元素有利于电荷在CuS与RGO界面间传输,降低了光生电子-空穴对的复合几率,进而提高了光催化活性。
关键词: Fe-CuS/RGO  亚甲基蓝  光催化
基金项目: 上海市教委科研创新(重点)项目(No.12zz180)资助
Abstract: The Fe element doped CuS/RGO (Fe-CuS/RGO) was fabricated via a facile one-step solvothermal method,which displayed outstanding photocatalytic activity for methylene blue (MB) degradation.The composition and structure of the prepared composites were characterized by X-ray diffraction (XRD),X-ray photoelectron spectroscopy (XPS),Raman spectra,photoluminescence (PL) spectra,scanning electron microscopy (SEM),Transmission electron microscope (TEM) and UV-Vis optical absorption spectroscopy.The results showed that pristine CuS,CuS/RGO and Fe-CuS/RGO exhibited photocatalytic activity for the photodegradation of MB with degradation efficiency of 41.2%,81.5% and 90.6%,respectively,in 140 min under mercury lamp irradiation,indicating that Fe-CuS/RGO could be acknowledged as a promising photocatalyst for the removal of organic contaminants.The enhanced photocatalytic activity was ascribed to that Fe element could be acted as an interfacial charge transfer channel between CuS and RGO to thus inhibit the recombination of photogenerated electron-holes pairs.
Keywords: Fe-CuS/RGO  methylene blue  photocatalyst
投稿时间:2017-02-17 修订日期:2017-05-11
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杨明荣,沈勇,胡小赛,张惠芳,王黎明,徐丽慧,邢亚均.Fe-CuS/还原氧化石墨烯(RGO)的制备及其光催化性能[J].无机化学学报,2017,33(7):1223-1230.
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