Efficient self-assembly synthesis of LaPO4/CdS hierarchical heterostructure with enhanced visible-light photocatalytic CO2 reduction

Bao Pan, Jiani Qin, Xuxu Wang, Wenyue Su

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

Root nodule-like LaPO4/CdS hierarchical heterostructures were constructed via in-situ growth of LaPO4 microspheres on the surface of CdS nanorods to remarkably enhance CO2 reduction under visible light. The self-assembly strategy allows intimate interfacial contact between LaPO4 and CdS, greatly facilitating the separation and transfer of photo-generated charge, which lifetime is increased from 18.6 ns to 48.5 ns. Benefiting from the synergistic effect of the enhanced CO2 adsorption and promoted visible light absorption, the optimized LaPO4/CdS photocatalyst shows excellent CO2 reduction performance with CO generation rate of 960 μmol⋅h−1⋅g−1, which is 3.9 times greater than the pure CdS nanorods. Moreover, considerable stability can be observed in LaPO4/CdS heterostructure photocatalysts. The current work provides a simple self-assembly approach to build 3D-1D semiconductor composites for artificial photosynthesis.

Original languageEnglish
Article number144379
JournalApplied Surface Science
Volume504
DOIs
StatePublished - 28 Feb 2020
Externally publishedYes

Keywords

  • CdS nanorods
  • Heterostructures
  • LaPO microspheres
  • Photocatalysis
  • Self-assembly

ASJC Scopus subject areas

  • General Chemistry
  • Condensed Matter Physics
  • General Physics and Astronomy
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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