Ag_2CO_3-Ag_2S复合材料的制备、表征及其可见光催化降解罗丹明B活性研究

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英文篇名：Preparation,characterization and photocatalytic degradation of Rhodamine B of Ag_2CO_3-Ag_2S composites under visible light 作者：孙德武 ; 张健峰 ; 翟宏菊 ; 关壬铨 ; 吕雪莲 ; 赵佳琪 ; 刘金昊 ; 刘晓雯 英文作者：SUN De-wu;ZHANG Jian-feng;ZHAI Hong-ju;GUAN Ren-quan;LYU Xue-lian;ZHAO Jia-qi;LIU Jin-hao;LIU Xiao-wen;College of Chemistry,Jilin Normal University;Key Laboratory of Preparation and Applications of Environmental Friendly Materials of the Ministry of Education,Jilin Normal University; 关键词：可见光催化 ; 碳酸银 ; 硫化银 ; 复合材料 英文关键词：photocatalysis under visible light;;Ag2CO3;;Ag2S;;composites 中文刊名：SLXK 英文刊名：Jilin Normal University Journal(Natural Science Edition) 机构：吉林师范大学化学学院;吉林师范大学环境友好材料制备与应用教育部重点实验室; 出版日期：2019-01-16 出版单位：吉林师范大学学报(自然科学版) 年：2019 期：v.40;No.146 基金：国家自然科学基金项目(61308095);; 吉林师范大学大学生科研立项(16310) 语种：中文; 页：SLXK201901005 页数：5 CN：01 ISSN：22-1393/N 分类号：24-28

摘要

采用简单的沉淀法在不同溶剂中合成了不同比例的复合材料,通过SEM、XRD和UV-Vis对合成的样品进行了表征.结果表明,在以水为溶剂时合成的样品形貌为棒状的Ag_2CO_3上附着均匀的颗粒状的Ag_2S,而在水和乙醇混合溶剂中合成的Ag_2CO_3-Ag_2S复合材料的形貌为棒状Ag_2CO_3上附着不规则颗粒状的Ag_2S,且以水和乙醇混合溶剂合成的Ag_2CO_3-Ag_2S复合材料对可见光下降解罗丹明B染料的催化性能强于Ag2CO3和Ag2S本身,并提出了可能的光催化机理.
        The composites of Ag_2CO_3-Ag_2S with different proportions in different solvents were synthesized by simple precipitation method and were characterized by SEM,XRD and UV-Vis. The results showed that the morphology of the sample was better when water was used as solvent. The morphology of the Ag_2CO_3-Ag_2S composite prepared in the mixed solvent of water and ethanol was irregular granular Ag_2S attached on the rodlike Ag_2CO_3. The catalytic activity of Ag_2CO_3-Ag_2S composite prepared in water and ethanol for visible light degradation of Rhodamine B dyes is better than that of Ag_2CO_3 or Ag_2S catalyst. The possible photocatalytic mechanism is proposed.

引文

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