收录:
摘要:
A NiO/CeO(2)p-nheterojunction with the hierarchically porous microspheres was fabricated by annealing the precursor of the nickel/cerium mixed-metal metal-organic frameworks. The morphologies, microstructures, composition, specific surface area, photogenerated electron-hole pair separation/transfer, and photocatalytic activities were characterized for all acquired catalysts. The photodegradation rates of organic dyes including methyl orange and methylene blue were investigated under ultraviolet light. The NiO/CeO(2)heterojunctions showed a much higher photocatalytic performance than that of pure NiO and CeO2. Among all photocatalysts NiO/CeO2-3 presented the best photocatalytic activity, i.e., the degradation of MO was 2.6 times higher than pure NiO under ultraviolet light, and the hydrogen generation with the rate of about 29.6 mu mol h(-1) g(-1). The improved photocatalytic performance could be ascribed to the formation of the NiO/CeO(2)p-nheterojunction, which is beneficial for effective separation and fast transfer of the photoexcited electron-hole pairs.
关键词:
通讯作者信息:
电子邮件地址:
来源 :
JOURNAL OF MATERIALS SCIENCE
ISSN: 0022-2461
年份: 2020
期: 33
卷: 55
页码: 15930-15944
4 . 5 0 0
JCR@2022
ESI学科: MATERIALS SCIENCE;
ESI高被引阀值:37
JCR分区:2