具有孪晶结构的红细胞状硫化铜的制备及其光-芬顿催化性能  

Synthesis of erythrocyte-like CuS with twin structure and photo-Fenton catalytic performance

作　　者：李明辉[1,2] 杨群[3] 邹星宇 宋武林 曾大文[1] LI Ming-Hui;YANG Qun;ZOU Xing-Yu;SONG Wu-Lin;ZENG Da-Wen(State Key Laboratory of Materials Processing and Die&Mould Technology,College of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;Analytical and Testing Center,Huazhong University of Science and Technology,Wuhan 430074,China;Wuhan Maritime Communication Research Institute,Wuhan 430205,China)

机构地区：[1]华中科技大学材料科学与工程学院,材料成形与模具技术国家重点实验室,武汉430074 [2]华中科技大学分析测试中心,武汉430074 [3]中国船舶集团有限公司第七二二研究所,武汉430205

出　　处：《无机化学学报》2023年第11期2143-2150,共8页Chinese Journal of Inorganic Chemistry

摘　　要：采用简单的溶剂热法制备出具有孪晶结构的红细胞状硫化铜材料。研究不同前驱体比例和反应时间对硫化铜产物微观形貌的影响,并对孪晶结构红细胞状硫化铜可能的形成机理进行分析。在可见光照射下孪晶结构红细胞状硫化铜与H_(2)O_(2)组成的类芬顿系统表现出优异的降解性能,光照50 min后,亚甲蓝降解率可达95%。对比孪晶结构红细胞状硫化铜与合成的花球状硫化铜的催化性能,结果表明含有孪晶结构的红细胞状硫化铜对亚甲蓝的降解性能更好,说明孪晶的存在有利于加速光生电子-空穴的分离。An erythrocyte-like copper sulfide material with twins was synthesized by a solvothermal method.It was found that the different precursor proportions and reaction times play key roles in the formation of erythrocyte-like CuS.The formation mechanism of twin erythrocyte-like CuS was systematically elaborated.The Fenton-like system composed of CuS and H_(2)O_(2)showed excellent degradation performance under visible light irradiation,and the degradation rate of methylene blue reached 95%after 50 min under visible light.The catalytic performance of the erythrocyte-like CuS and the synthetic flower ball-like CuS was compared,and the degradation performance of the erythrocyte-like CuS was better,indicating that the twin crystals accelerate the separation of photogenerated electrons-holes.

关 键 词：红细胞状硫化铜 孪晶 光-芬顿 污染物降解 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学]