Green One-Pot Synthesis of Mesoporous g-C3N4 for Promoted Organic Dyes Photodegradation in Wastewater Treatment

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1 Citation (Scopus)

Abstract

This work provided a green, one-pot route to synthesize mesoporous g-C3N4. A series of characterizations revealed that the mesoporous sample maintained the typical structure of g-C3N4. The findings displayed that this mesoporous material had enlarged porosity and optical properties. The largest SBET of the mesoporous sample (32.65 m2/g) was 4.36 times larger than that of the bulk sample (7.48 m2/g). The photoactivity of the prepared photocatalysts was measured by the photocatalytic removal of rhodamine B (RhB). In agreement with the characterization analysis, the mesoporous g-C3N4 (99.60%) exhibited a 3.88 times better photocatalytic efficiency than that of bulk g-C3N4 (25.63%) and an 11.19 times faster reaction rate in the same period. In addition, the possible mechanism of this photodecomposition reaction was identified by the electron spin resonance (ESR) and trapping tests. The results demonstrated that •O2- and OH made contributions, and O2- played a dominant role in this process. This research offers a promising method for the synthesis of mesoporous g-C3N4 in an environmentally friendly and cost-effective route with remarkably high photoactivity.

Original languageEnglish
Pages (from-to)3491-3503
Number of pages13
JournalIndustrial and Engineering Chemistry Research
Volume63
Issue number8
DOIs
Publication statusPublished - 28 Feb 2024

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • Industrial and Manufacturing Engineering

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