增强可见光吸收和电荷分离的碳量子点/BiPO_4纳米复合材料（英文）  

Carbon Quantum Dots/BiPO_4 Nanocomposites with Enhanced Visible-light Absorption and Charge Separation

作　　者：张志洁 徐家跃 曾海波 张娜 ZHANG Zhi-Jiel, XU Jia-Yuel, ZENG Hai-Bo1＇2, ZHANG Na1(1. Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China; 2. Institute of Optoelectronics and Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, Chin)

机构地区：[1]上海应用技术大学材料科学与工程学院晶体生长研究所,上海201418 [2]南京理工大学材料科学与工程学院纳米光电材料研究所,南京210094

出　　处：《无机材料学报》2018年第5期582-586,共5页Journal of Inorganic Materials

基　　金：National Science Foundation of China(51402194,51572128);Shanghai Science and Technology Committee(14YF1410700);Shanghai Institute of Technology(BJPY2015-1)

摘　　要：通过水热法一步合成了具有增强可见光吸收和电荷分离的碳量子点/BiPO_4纳米复合光催化材料。通过降解罗丹明B染料表征了碳量子点/BiPO_4纳米复合材料的光催化性能。结果表明:在模拟太阳光或可见光的照射下,碳量子点/BiPO_4复合材料的光催化性能均优于单纯的BiPO_4。碳量子点/BiPO_4复合材料光催化性能的提升可归因于碳量子点对可见光的吸收增加了太阳光的利用率,以及碳量子点的电子转移和储存性质提高了材料的电荷分离效率。In this study,a CQDs/BiPO4 nanocomposite with enhanced visible-light absorption and charge separation was fabricated via a one-step hydrothermal reaction.The photocatalytic activity of the CQDs/BiPO4 nanocomposite was evaluated by degradation of rhodamine B（Rh B）.The result showed that the CQDs/BiPO4 composite exhibited superior photocatalytic performance to pure BiPO4 under simulated solar light,as well as under visible light irradiation.Its enhanced photocatalytic performance could be ascribed to the excellent light harvesting properties,which increased utilization rate of solar energy,electron transfer efficiency and reservoir ability of the nanocompsites,facilitating the charge separation efficiency of the composite.

关 键 词：光催化 碳量子点 BiPO4 电子转移 

分 类 号：TQ174[化学工程—陶瓷工业]