Synthesis of TiO2@ZnIn2S4 hollow nanospheres with enhanced photocatalytic hydrogen evolution
Synthesis of TiO2@ZnIn2S4 hollow nanospheres with enhanced photocatalytic hydrogen evolution
复制标题
具有增强光催化析氢能力的TiO2@ZnIn2S4空心纳米球的合成
DOI：
10.1007/s12598-019-01253-y
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发表时间：
2019-05-01
期刊：
影响因子：
8.8
通讯作者：
Yang, Gui-Dong
中科院分区：
文献类型：
--
作者：
Li, He;Chen, Zi-Hao;Yang, Gui-Dong
本文采用模板法结合水热合成工艺，设计并制备了新型TiO2@ZnIn2S4纳米空心结构。其独特的中空结构和TiO 2空心纳米球与ZnIn 2S 4纳米片之间的II型异质结可以为光吸收和电荷快速迁移提供足够的内腔和传输路径。测试了其晶体结构、形貌和电荷分离性能。表征结果表明，成功制备了中空结构的TiO2@ZnIn2S4，在全光照条件下，最佳样品的光催化产氢性能是TiO 2/ZnIn 2S 4团簇的1.1倍。特别地，对所制备的TiO2@ZnIn2S4空心纳米球光催化析氢和载流子迁移的详细机理进行了研究.
In this work, we designed and prepared the novel TiO2@ZnIn2S4 nano-sized hollow structure via templating method assisted by hydrothermal synthesis process. Its unique hollow structure and type-II heterojunction between TiO2 hollow nanospheres and ZnIn2S4 nanosheet can provide enough interior cavities and transfer paths for the light absorption and charge quick migration. The crystal structure, morphology and charges separation property were measured. The characterization results show that the hollow-structured TiO2@ZnIn2S4 was successfully prepared, and the optimal sample exhibited excellent photocatalytic hydrogen generation compared with TiO2/ZnIn2S4 cluster exceeding by a factor of 1.1 under overall light irradiation. Specially, the detailed mechanism of the photocatalytic H-2 evolution and charge carrier migration for the as-prepared TiO2@ZnIn2S4 hollow nanosphere was also studied.