Layered Bi2MoO6/LDH hetero-structured composites with enhanced visible light photocatalytic activity

被引：33
作者：
Hu, Fengxian [1 ,2 ]
Cui, Entian [1 ]
Liu, Hongxia [1 ]
Wu, Jing [1 ]
Dai, Yong [1 ]
Yu, Guiyun [1 ]
机构：
[1] Yancheng Inst Technol, Sch Chem & Chem Engn, Yancheng 224051, Peoples R China
[2] Jiangsu Univ, Sch Chem & Chem Engn, Zhenjiang 212013, Jiangsu, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2019年 / 30卷 / 03期
基金：
中国国家自然科学基金;
关键词：
DOUBLE HYDROXIDE; RHODAMINE-B; FACILE SYNTHESIS; BISMUTH MOLYBDATES; DEGRADATION; HETEROJUNCTION; NANOSHEETS; DYE; PHOTODEGRADATION; MICROSPHERES;
D O I：
10.1007/s10854-018-0532-9
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Series of Bi2MoO6/NiAl-LDH hetero-junction photocatalysts were synthesized by a two-step hydrothermal method with a self-assembled process. It indicated that the in-situ intercalated NiAl-LDH showed a tight contact with Bi2MoO6 layers and thus exhibited the rapid transfer of photogenerated electrons on the interface. The photocatalytic performance was evaluated by the degradation of rhodamine B (RhB) under visible light irradiation. The resulted Bi2MoO6/NiAl-LDH sample showed a higher visible-light photocatalytic activity for the degradation of RhB than any single component. The optimal LDH content in Bi2MoO6/NiAl-LDH is 15% with the degradation efficiency for more than 90% during 60min. The excessive amount of NiAl-LDH in Bi2MoO6/NiAl-LDH could reduce the light absorption efficiency of Bi2MoO6 and thus affected the generation of photoinduced electron-hole pairs. The enhanced photocatalytic activity and stability of Bi2MoO6/NiAl-LDH was attributed to the synergistic effects of the introduction of narrow band-gap NiAl-LDH and the construction of layered hetero-junction. Our synthetic method of self-assembly sheets has certain guided significance for the synthesis and application of other photocatalysts.
引用
收藏
页码：2572 / 2584
页数：13
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