高等学校化学学报 ›› 2021, Vol. 42 ›› Issue (4): 1292.doi: 10.7503/cjcu20200615

• 研究论文 • 上一篇    下一篇

Ni5P4/g-C3N4复合光催化剂的制备及光催化性能

李冬平, 李彬, 李长恒, 于薛刚(), 单妍(), 陈克正   

  1. 青岛科技大学材料科学与工程学院, 青岛 266042
  • 收稿日期:2020-08-28 出版日期:2021-04-10 发布日期:2021-01-22
  • 通讯作者: 于薛刚,单妍 E-mail:yuxuegang@qust.edu.cn;shanyan@qust.edu.cn
  • 基金资助:
    国家自然科学基金(51472133);青岛市基础研究基金(13-1-4-205-jch)

Synthesis and Enhanced Photocatalytic Activity of Ni5P4/g-C3N4

LI Dongping, LI Bin, LI Changheng, YU Xuegang(), SHAN Yan(), CHEN Kezheng   

  1. College of Materials Science and Engineering,Qingdao University of Science and Technology,Qingdao 266042,China
  • Received:2020-08-28 Online:2021-04-10 Published:2021-01-22
  • Contact: YU Xuegang,SHAN Yan E-mail:yuxuegang@qust.edu.cn;shanyan@qust.edu.cn
  • Supported by:
    ? Supported by the National Natural Science Foundation of China(51472133);the Basic Research Program of Qingdao City, China(13?1?4?205?jch)

摘要:

使用尿素、 红磷和氯化镍为原料, 通过一种简单的焙烧方法合成了Ni5P4/g-C3N4光催化剂. 该催化剂形成的异质结可以降低界面电阻, 有效抑制光生电子-空穴对复合率. 以罗丹明B模拟污染物进行降解测试, 发现3NPC的反应速率常数最高, 几乎是g-C3N4的7倍, 并具有最高的光催化产氢能力, 制氢速率高达1013.88 μmol·g-1·h-1, 明显高于g-C3N4(664.38 μmol·g-1·h-1).

关键词: 非金属石墨相氮化碳, 磷化物, 光催化, 降解, 氢气

Abstract:

Ni5P4/g-C3N4 photocatalysts were synthesized by a simple calcination method with urea, phosphorus and nickel chloride. The formed heterojunction can decrease the interface resistance and photogenerate electron-hole pair recombination rate. These lead to an increase in the catalytic performance of the photocatalyst. In the photocatalytic degradation of RhB, 3NPC(mass fraction of Ni5P4: 3%) has the highest reaction rate constant, which is almost 7 times that of g-C3N4. And 3NPC also exhibits the highest photocatalytic hydrogen activity of 1013.88 μmol·g-1·h-1, which is higher than that of g-C3N4(664.38 μmol·g-1·h-1).

Key words: g-C3N4, Phosphate, Photocatalysis, Degradation, H2

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