Constructing novel hyper-crosslinked In2S3@HLZU-1 through molecular expansion for enhanced photocatalytic performance

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

5 Scopus Citations
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Author(s)

  • Huaizhi Yang
  • Yuqi Wan
  • Qingrong Cheng
  • Hong Zhou
  • Zhiquan Pan

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)4268-4282
Journal / PublicationEnvironmental Science: Nano
Volume9
Issue number11
Online published27 Sept 2022
Publication statusPublished - 1 Nov 2022

Abstract

A novel hyper-crosslinked In2S3@HLZU-1 heterojunction through molecular expansion was carefully designed and fully characterized. This synthetic strategy not only increased the specific surface area and average pore volume of LZU-1 by 11.3 and 3.6 times, respectively, but also greatly enhanced the photocatalytic performance. Under visible light, the catalyst can degrade 90% of 50 ml, 40 ppm TC solution within 1 h, and the maximum hydrogen evolution rate was 11920.42 μmol g−1 h−1. SEM, XPS and other characterization techniques proved the existence and the interaction of In2S3 and HLZU-1. The performance of the heterojunction photocatalyst is mainly attributed to: (i) the matching energy band structure between In2S3 and HLZU-1, which ensures the effective separation of photogenerated holes and electrons, and (ii) the hyper-crosslinking treatment, which can improve the photo-absorption and photocatalytic properties of the catalyst. A Z-type photocatalytic mechanism was proposed based on radical trapping experiments and electron spin resonance (ESR) analyses. This study developed an effective molecular expansion strategy to synthesize COF-based catalysts with more catalytic sites for potential applications in the environmental and energy fields.

Research Area(s)

  • IN-SITU SYNTHESIS, HYDROGEN EVOLUTION, ORGANIC FRAMEWORKS, CHARGE-TRANSFER, HETEROJUNCTION, DEGRADATION, TEMPLATE, HYBRID, MOF, PHOTODEGRADATION

Citation Format(s)

Constructing novel hyper-crosslinked In2S3@HLZU-1 through molecular expansion for enhanced photocatalytic performance. / Yang, Huaizhi; Wan, Yuqi; Cheng, Qingrong et al.
In: Environmental Science: Nano, Vol. 9, No. 11, 01.11.2022, p. 4268-4282.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review