期刊信息

  • 刊名： 河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
  • 主办： 河北师范大学
  • ISSN： 1000-5854
  • CN： 13-1061/N
  • 中国科技核心期刊
  • 中国期刊方阵入选期刊
  • 中国高校优秀科技期刊
  • 华北优秀期刊
  • 河北省优秀科技期刊

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友情链接

N,S-CQDs/Mn0.5Cd0.5S的制备及光催化产氢性能

  • (河北师范大学 化学与材料科学学院,河北 石家庄 050024)
  • DOI： 10.13763/j.cnki.jhebnu.nse.202403004

Preparation and Photocatalytic Hydrogen Evolution Activity of N,S-CQDs/Mn0.5Cd0.5S

摘要/Abstract

摘要：

采用水热法制备了氮、硫共掺杂碳量子点(N,S-CQDs)，并用超声辅助法合成了N,S-CQDs修饰的Mn0.5Cd0.5S(MCS)复合光催化材料.研究表明，在模拟太阳光照射下，质量分数为1 %的N,S-CQDs/MCS的光催化产氢速率显著提高，为34 159.25 μmol/(g·h)，是MCS的1.63倍，是质量分数为1 %的CQDs/MCS的1.14倍.此复合物光催化产氢性能的提高主要归因于N,S-CQDs优异的电子迁移能力以及MCS与N,S-CQDs之间的紧密接触.

Abstract：

Nitrogen and sulfur co-doped carbon quantum dots(N,S-CQDs) were prepared by hydrothermal method.And then N,S-CQDs modified Mn0.5Cd0.5S(MCS) composite photocatalytic materials were synthesized using ultrasonic-assisted method.Experiments showed that under simulated solar light irradiation,1 %N,S-CQDs/MCS exhibited significantly improved H2 production of 34 159.25 μmol/(g·h),which was 1.63 times higher than that of MCS and 1.14 times than that of 1 %CQDs/MCS.The outstanding photocatalytic capacity was mainly ascribed to the superior electron migration ability of N,S-CQDs and intimate contact between MCS and N,S-CQDs.

关键词

关键词： N,S共掺杂碳量子点 ; Mn0.5Cd0.5S； 光催化剂； 产氢
Key words： N,S-CQDs ; Mn0.5Cd0.5S ; photocatalyst ; hydrogen production

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