CuS/石墨烯光催化降解染料废水
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摘要
采用溶剂热法制备了CuS/石墨烯纳米复合材料。通过TEM、SEM、XRD、UV-Vis、PL等对复合材料的结构、形貌及其光学性能进行了表征,并以多种染料溶液为目标降解物,对其进行光催化活性的研究。结果表明,CuS微粒均匀分散在石墨烯表面,CuS/石墨烯复合材料表现出较高的光催化活性和光稳定性,以0.4%的添加量,75 min后对阳离子蓝SD-BL、阳离子红X-5GN、直接蓝86、活性蓝KN-R、亚甲基蓝、罗丹明B溶液的降解率分别可达到100%,96.1%,99.8%,87.9%,100%,81.5%。
CuS/RGO composites are synthesized by a facile solvothermal method. The morphology, microstructure and optical performance of the composites are characterized by SEM, TEM, XRD, UV-Vis and PL, and the photocatalytic activity of various dye solutions is studied. The results show that CuS particles are dispersed evenly on the RGO sheets, and CuS/RGO composites exhibit excellent photocatalytic performance and stability in dye degradation. The photodegradation rates of Cationic Blue SD-BL, Cationic Red X-5 GN, Direct Blue 86, Reactive Blue KN-R, Methylene Blue and Rhodamine B can be increased to 100%, 96.1%, 99.8%, 87.9%, 100%, 81.5% respectively after 75 min of irradiation with CuS/RGO composites addition of 0.4%.
CuS/RGO composites are synthesized by a facile solvothermal method. The morphology, microstructure and optical performance of the composites are characterized by SEM, TEM, XRD, UV-Vis and PL, and the photocatalytic activity of various dye solutions is studied. The results show that CuS particles are dispersed evenly on the RGO sheets, and CuS/RGO composites exhibit excellent photocatalytic performance and stability in dye degradation. The photodegradation rates of Cationic Blue SD-BL, Cationic Red X-5 GN, Direct Blue 86, Reactive Blue KN-R, Methylene Blue and Rhodamine B can be increased to 100%, 96.1%, 99.8%, 87.9%, 100%, 81.5% respectively after 75 min of irradiation with CuS/RGO composites addition of 0.4%.
引文
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[3]郭效军,王佃国,王科柏.Sn4+掺杂CuFe2O4有效降解亚甲基蓝染料废水的研究[J].硅酸盐通报,2018,(37)1:347-351.
[4]范追追,朱青,王文,等.高吸附性PVA-co-PE纳米纤维水凝胶的制备及废水处理[J].印染,2018,43(02):5-10.
[5]GIMENO O,GARCíA-ARAYA J F,BELTRáN F J,et al.Removal of emerging contaminants from a primary effluent of municipalwastewater by means of sequential biological degradation-solarphotocatalytic oxidation processes[J].Chemical Engineering Journal,2016,290:12-20.
[6]张倩,李可培,张慧云,等.三维石墨烯气凝胶的制备及对罗丹明B的吸附性能[J].印染,2018,44(10):1-7.
[7]周田,陈炳地,姚爱华,等.CdS/石墨烯纳米复合材料的超声化学法制备及光催化性能[J].无机化学学报,2013,29(2):231-236.
[8]XING Y J,SHEN Y,HU X S,et al.Preparation and Visible-Light DrivenPhotocatalytic Properties of CuS/Reduced Graphene Oxide Composites[J].Journal of Nanotechnology and Nanoscience,2018,18:1696-1704.
[9]吴海培,高晓红,孙静,方婧,刘其霞.氧化石墨烯的制备及对TiO2光催化作用的影响[J].印染,2018,44(06):13-17.
[10]曾斌,陈小华,汪次荣.石墨烯负载硫化锌/硫化铜异质结的制备及光催化性能[J].材料工程,2017,45(12):99-105.
[11]陈春明,陈中华,曾幸荣.热还原法制备氧化石墨烯/TiO2复合材料及其光催化性能研究[J].功能材料,2015,16(46):16152-16156.
[12]FENG C H,ZHANG L,YANG M H,et al.One-Pot Synthesis of Copper Sulfide Nanowires/Reduced Graphene Oxide Nanocomposites with Excellent Lithium-Storage Properties as Anode Materials for Lithium-Ion Batteries[J].ACS Applied Materials&Interfaces,2015,7,15726-15734.
[13]TANVEER M,CAO C H,ASLAM I,et al,Synthesis of CuS flowers exhibiting versatile photo-catalyst response[J],New Journal of Chemistry,2015,39:1459-1468.
[14]关尹双,赵炜,刘开帅,等.石墨烯基催化剂的研究进展[J].化工进展,2017,36:221-227.
[15]翟宏菊,王岩,孙德武,等.石墨烯及其复合材料光催化制氢研究新进展[J].吉林师范大学学报(自然科学版),2018,39(2):17-19.