摘要
采用沉淀法制备了Ag2CO3/膨胀石墨(EG)复合材料,以降解四环素(TC)溶液为模型反应,考察了该材料的光催化活性,并通过XRD和SEM对复合材料结构进行了表征。实验结果表明,Ag2CO3以棒状的结构沉积在大比表面积EG的片层上,证明了样品在可见光范围内具有较高的吸附能力。在最佳条件下,80 min后TC的降解效率可达97.4%。对催化剂的循环测试表明,Ag2CO3/EG复合材料重复使用5次仍具有较高的光催化效率。
Ag2CO3/exfoliated graphite(EG)composites were prepared by the precipitation method.The photocatalytic activity of the material was evaluated using the decolorization of tetracycline(TC)solution as model reaction.The structure of composite samples was characterized through X-ray diffraction and scanning electron microscopy.Experimental results showed that Ag2CO3 was deposited on the surface of EG in rodlike form.The result proved that the sample had high adsorption capacity under the visible light.Under optimal conditions,the decolorization efficiencies of TC for 80 min reaches 97.4%.Recycling use of the catalyst revealed that the Ag2CO3/EG composites has high photocatalytic efficiency after repeatedly used five times.
作者
王俊丽
许琳
武彦芳
赵强
WANG Junli;XU Lin;WU Yanfang;ZHAO Qiang(School of Chemistry and Environmental Engineering,Shanxi Datong University,Datong 037009,Shanxi,China)
出处
《实验室研究与探索》
CAS
北大核心
2020年第12期15-17,25,共4页
Research and Exploration In Laboratory
基金
国家自然科学基金(21908135)
山西省高等学校科技创新项目(201802096)
山西省留学回国人员科技活动项目择优资助(2019-20)
山西省青年科学基金项目(201901D211435)。
