摘要
开发一种高效的产氢光催化剂对于将太阳能转化为氢能至关重要。该研究将氮掺杂石墨相氮化碳(CN)与光化学合成得到的助催化剂CoSex相结合,通过原位合成制备了一种高效的光催化产氢材料。该材料的最佳光催化性能较CN提高285倍。光电化学试验表明,氮掺杂和引入CoSex可以有效促进光生电荷载流子的分离,从而提高CN的产氢活性。该工作为利用光化学沉积方法制备新型光催化剂提供了新的视角。
Developing an efficient photocatalyst for hydrogen production is crucial for the conversion of solar energy to hydrogen.An efficient photocatalytic hydrogen evolution material was prepared by altering the graphite carbon nitride(CN)through nitrogen-doping and employing CoSex as a co-catalyst through a photochemical synthesis route.The optimal photocatalytic performance of the material is 285 times higher than that of CN.Photoelectrochemical experiments demonstrate that nitrogen-doping and introducing CoSex can effectively promote the separation of photogenerated charge carriers,thus increasing the hydrogen evolution activity of CN.This work may provide new perspectives for the preparation of novel photocatalysts by photochemical deposition methods.
作者
刘思伟
郗传俊
张琳萍
宣为民
侯煜
LIU Siwei;XI Chuanjun;ZHANG Linping;XUAN Weimin;HOU Yu(College of Chemistry and Chemical Engineering,Donghua University,Shanghai 201620,China;Key Laboratory of Science and Technology of Eco-Textile,Ministry of Education,Donghua University,Shanghai 201620,China)
基金
National Natural Science Foundation of China(No.21872025)。
关键词
光催化剂
CoSex
助催化剂
产氢
氮掺杂
photocatalyst
CoSex
co-catalyst
hydrogen production
nitrogen-doping
