摘要
通过在球形中空结构Ni-MOF的表面原位生长CdS纳米颗粒制备了CdS/Ni-MOF可见光驱动的非贵金属光催化剂。相对纯CdS纳米颗粒,CdS/Ni-MOF的产氢性能有明显提升,CdS/Ni-MOF(60)复合光催化剂的产氢率达到了211.5μmol·h^(-1),是纯CdS产氢率的6倍,且其具有良好的光催化稳定性。CdS和Ni-MOF的相匹配的能带位置实现了光生电子的有效分离,加速电子转移,减少了CdS中光生电子与空穴的复合几率,从而有效阻碍了CdS的光腐蚀现象。
The visible-driven non-noble metal CdS/Ni-MOF photocatalysts were prepared by in-situ growth of CdS nanoparticles on the surface of spherical hollow structure Ni-MOF.Compared with pure CdS nanoparticles,the hydrogen production performance of CdS/Ni-MOF composite photocatalyst was significantly improved,and the hydrogen production rate of CdS/Ni-MOF(60)composite photocatalyst reached 211.5μmol·h^(-1),which was 6 times of that of pure CdS.And CdS/Ni-MOF(60)composite photocatalyst showed the good stability and recycling.Due to the band position matching between CdS and Ni-MOF,the effective separation of photogenerated electrons wad realized,which accelerated electron transfer and reduced the recombination probability of photogenerated electrons and holed in CdS,thus effectively hindered the photocorrosion phenomenon of CdS.
作者
曾俊辉
王明华
邓哲
易杰
ZENG Jun-hui;WANG Ming-hua;DENG Zhe;YI Jie(College of Material and Textile Engineering,Jiaxing University,Zhejiang Jiaxing 314001;Ecological Environment Monitoring Station of Haiyan,Zhejiang Jiaxing 314300,China)
出处
《广州化工》
CAS
2023年第3期79-82,共4页
GuangZhou Chemical Industry
基金
浙江省科技创新活动计划(新苗人才,2021R417038)。
关键词
金属有机骨架
电荷分离
光催化产氢
metal-organic skeleton
charge separation
photocatalytic hydrogen production