高等学校化学学报Issue(4)：717-723,7.DOI:10.7503/cjcu20130781
碳点/银复合结构的制备及可见光催化性能
Synthesis and Photocatalytic Properties of the Composites Between Carbon Dots and Silver Nanostructures
摘要
Abstract
The composites between carbon dots and silver nanostructures ( CDs/Ag ) were synthesized by in-situ synthesis and simple mixing, respectively. The products obtained by in-situ synthesis exhibit stronger light absorption and higher photocatalytic activity for methylene blue( MB) degradation than those of simple mixing. The effects of H2 O2 addition and the fluorescence intensity of CDs on photocatalytic activities of the obtained CDs/Ag were analyzed. The experimental results indicate that the amount of H2 O2 addition can change the morphology and light absorption of CDs/Ag, and then results in different photocatalytic performances. On the other hand, the CDs/Ag obtained from CDs with stronger fluorescence emission shows stronger light absorption and higher photocatalytic activities. The possible mechanism of photocatalytic activities of the in-situ synthe-sized CDs/Ag could be that strong combination between CDs and Ag nanocrystals induced much stronger sur-face plasma resonance, thus enhancing light absorption and the light energy conversion efficiency.关键词
碳点/银纳米结构/原位复合/光催化性能Key words
Carbon dots/Siliver nanostructure/in-situ Synthesis/Photocatalytic property分类
化学化工引用本文复制引用
武玲玲,田瑞雪,赵清,常青,胡胜亮..碳点/银复合结构的制备及可见光催化性能[J].高等学校化学学报,2014,(4):717-723,7.基金项目
国家自然科学基金(批准号:51272301,51172214,51172120)、中国博士后基金(批准号:2012M510788,2013T60269)、山西省高等学校优秀青年带头人计划、科技部创新方法工作专项项目(批准号:2011IM030800)和清华大学新型陶瓷与精细工艺国家重点实验室开放基金资助.@@@@Supported by the National Natural Science Foundation of China(Nos.51272301,51172214,51172120), the China Postdoctoral Science Foundation Funded Project(Nos.2012M510788,2013T60269), the Innovation Method Special Project of Ministry of Science and Technology of China(No.2011IM030800) and the Open Fund of State Key Laboratory of New Ceramic and Fine Processing, Tsinghua University, China （批准号:51272301,51172214,51172120）
