陕西科技大学学报2018，Vol.36Issue(4)：120-126,7.
碳量子点/磷酸银复合催化剂的制备及光催化性能
Synthesis and photocatalytic properties of carbon quantum dot/Ag3PO4 composite
摘要
Abstract
Carbon quantum dot(CQDs)/Ag3PO4photocatalytic composites were synthesized by coprecipitation method using the CQDs,NaH2PO4and AgNO3as starting materials.X-ray diffraction(XRD),field-emission scanning electron microscopy(FE-SEM),X-ray photoelec-tron spectroscopy(XPS)and UV-Vis analysis were utilized to characterize the structure,morphology,chemical state of element and band gap energy as synthesized photocatalyst.The results indicated that the composites possessed a cubic phase structure and did not change Ag3PO4crystal structure.With the increasing amount of CQDs,the particle size of xCQDs/Ag3PO4decreased.The Rh B was used as the target pollutant,and the photocatalytic per-formances of xCQDs/Ag3PO4(x＝0.4～2.0 wt％)were investigated under the condition of visible light irradiation.The synthesized nanocomposites of CQDs/Ag3PO4showed higher photocatalytic activity compared to conventional Ag3PO4photocatalyst,and the 1.2 w t％CQDs/Ag3PO4had the best photo-degradation performance.w hile m(CQDs): m(Ag3PO4)＝1.2:100,the degradation efficiency of Rh B could reach to 91.6％after 60 min reaction under visible light irradiation.Meanwhile,good photocatalytic activity was retained after three cycles run.关键词
碳量子点/磷酸银/复合光催化材料/罗丹明BKey words
carbon quantum dot/Ag3PO4/photocatalytic composite/Rhodamine B分类
化学化工引用本文复制引用
樊国栋,樊苗苗,郭萌,田噂存..碳量子点/磷酸银复合催化剂的制备及光催化性能[J].陕西科技大学学报,2018,36(4):120-126,7.基金项目
陕西省科技厅科技攻关计划项目(2016GY-142) （2016GY-142）
陕西省教育厅重点实验室科研计划项目(14JS015) （14JS015）
