期刊
CERAMICS INTERNATIONAL
卷 48, 期 20, 页码 31008-31015出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2022.07.062
关键词
g-C3N4; GQDs; W18O49; WO3; Electrochemical; Mechanism
资金
- National Natural Science Foundation of China [51204129]
In this study, GQDs/W18O49/WO3 (WCW) were loaded on g-C3N4 with defects (CN1-x) using hydrothermal synthesis. The CN1-x@WCW composites exhibited improved photoelectric efficiency, interfacial electron transfer, and electron lifetime compared to WCW.
In this study, the prepared GQDs/W18O49/WO3 (WCW) were loaded on g-C3N4 with defects (CN1-x) under the action of hydrothermal synthesis. The structure, morphology, optical properties, functional groups and surface group properties of the CN1-x@WCW composites were determined by XRD, TEM, UV-vis, FTIR and XPS tests. The electrochemical properties of the CN1-x@WCW composite were studied by i-t, EIS and M -S analysis. Compared with WCW, the instantaneous photoelectric efficiency, the photon current efficiency under the applied bias voltage, interfacial electron transfer and electron lifetime of CN1-x@WCW had been greatly improved. The results indicated that two-dimensional CN1-x with good conductivity could transfer electrons quickly, reduce the interfacial resistance and prolong the lifetime of electrons, thus inhibiting the recombination of photogenerated electron-hole pairs in WCW semiconductor. In addition, the possible mechanism was proposed and analyzed from the point of view of electron transmission.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据