Simultaneous Piezoelectrocatalytic Hydrogen-Evolution and Degradation of Water Pollutants by Quartz Microrods@Few-Layered MoS2 Hierarchical Heterostructures

Advanced Materials
Yu-Ting LinJyh Ming Wu

Abstract

Intense light attenuation in water/wastewater results in photocatalysts exhibiting a low quantum efficiency. This study develops a novel piezoelectrocatalysis system, which involves quartz microrods (MRs) abundantly decorated with active-edge-site MoS2 nanosheets to form a quartz microrods@few-layered MoS2 hierarchical heterostructure (QMSH). Through theoretical calculations, it is found that the quartz MRs serve as a parallel-plate capacitor, which is self-powered to provide an internal electric field to the few-layered MoS2 nanosheets surrounding the quartz MR surfaces, and the piezoelectric potential (piezopotential) effectively facilitates redox reactions with the free carriers in MoS2 . The self-powered quartz MRs in the QMSH present an internal bias to the MoS2 nanosheets, thus yielding a piezoelectrocatalysis system. An efficient piezoelectrocatalytic hydrogen evolution reaction and decomposition of wastewater without light irradiation can be achieved simultaneously. The second-order rate constant of the QMSH is ≈0.631 L mg-1 min-1 , which is 650-fold that of quartz MRs, indicating that the piezoelectric heterostructural catalysts display exceptionally high efficiency on piezoelectrocatalytic redox reactions rather than ...Continue Reading

References

Aug 15, 1991·Physical Review. B, Condensed Matter· Jiménez Sandoval SJ C Irwin
Apr 15, 2006·Science·Zhong Lin Wang, Jinhui Song
Oct 6, 2011·Advanced Materials·Hua TongJinhua Ye
Jul 23, 2013·International Journal of Food Microbiology·Seda Ersus Bilek, Fulya Turantaş
Feb 3, 2015·Journal of the American Chemical Society·Liang CaiShiqiang Wei
Aug 25, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Jyh Ming Wu, Yu Nong Chen
Mar 15, 2018·Accounts of Chemical Research·Bo You, Yujie Sun
Aug 21, 2018·Advanced Materials·Mu XiaoLianzhou Wang
Jan 17, 2019·Advanced Materials·Zhaohe DaiZhong Zhang
Feb 19, 2019·Advanced Materials·Bo YouHong Li
Jun 22, 2019·Angewandte Chemie·Huilin YouHaitao Huang

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