节点文献

Bi12O17Br2的制备及其光催化固氮性能的研究

Preparation of Bi12O17Br2 and its Photocatalytic Performance of Nitrogen Fixation

  • 推荐 CAJ下载
  • PDF下载
  • 不支持迅雷等下载工具,请取消加速工具后下载。

【作者】 赵泽方赵玉宝

【Author】 ZHAO Zefang;ZHAO Yubao;School of Chemistry and Chemical Engineering, University of South China;

【通讯作者】 赵玉宝;

【机构】 南华大学化学化工学院

【摘要】 采用一步水解法,通过控制不同水解时间制备系列Bi12O17Br2,对其晶相、氮吸脱附、光吸收及电化学特性进行鉴定与表征。将Bi12O17Br2用于可见光辐照下光催化固氮的结果表明,随制备时水解时间的延长,Bi12O17Br2对N2的化学吸附量增大,光催化固氮的活性增加,在不采用助剂、仅有N2和水的情况下,产NH+4的速率高达144μmol/(L·g·h)。电化学测定结果显示,随制备时水解时间的延长,所得Bi12O17Br2的电化学阻抗降低、光电流响应增大。

【Abstract】 A serials of Bi12O17Br2 were prepared by one-step hydrolysis under mild conditions, and their crystal phase, interaction with N2, optical and electrochemical features were systematically characterized and analyzed. The results showed that the photocatalytic performance of Bi12O17Br2 for N2 fixation was greatly improved with increasing the hydrolysis time. The yield of NH+4 reached 144 μmol/(L·g·h) without the addition of sacrificial agents and co-catalysts. Electrochemical measurement results show that Bi12O17Br2 prepared with long-time hydrolysis has small electrochemical impedance, which could be beneficial to efficient separation of photogenerated carriers. As a result, long-time hydrolysis make Bi12O17Br2 a promising catalyst for photocatalytic fixation of nitrogen under visible light.

【关键词】 Bi12O17Br2光催化固氮
【Key words】 Bi12O17Br2photocatalysisnitrogen fixation
【基金】 能源与环境光催化国家重点实验室开放课题(SKLPEE-KF201706)
  • 【文献出处】 南华大学学报(自然科学版) ,Journal of University of South China(Science and Technology) , 编辑部邮箱 ,2022年04期
  • 【分类号】O643.36;O644.1;TQ113.26
  • 【下载频次】84
节点文献中: 

本文链接的文献网络图示:

本文的引文网络