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

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H₂O₂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。

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

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 H₂O₂ 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.