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

  • Fengxian Hu
  • Entian Cui
  • Hongxia Liu
  • Jing Wu
  • Yong DaiEmail author
  • Guiyun YuEmail author


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 60 min. 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.



This work was supported the National Natural Science Foundation of China (NSFC) (Grants 21603182), University Science Research Project of Jiangsu Province (Grants 2016097), The natural science Foundation of the Jiangsu Higher Education Institutions of China (Grants 201703196).

Compliance with ethical standards

Conflict of interest

All authors have declared that: (i) no support, financial or otherwise, has been received from any organization that may have an interest in the submitted work; and (ii) there are no other relationships or activities that could appear to have influenced the submitted work.

Supplementary material

10854_2018_532_MOESM1_ESM.docx (131 kb)
Supplementary material 1 (DOCX 130 KB)


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Authors and Affiliations

  1. 1.School of Chemistry & Chemical EngineeringYancheng Institute of TechnologyYanchengPeople’s Republic of China
  2. 2.School of Chemistry & Chemical EngineeringJiangsu UniversityZhenjiangPeople’s Republic of China

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