Modification of surface properties and enhancement of photocatalytic performance for g-C3N4 via plasma treatment

Zhiyong Mao, Jingjing Chen, Yanfang Yang, Lijian Bie, Bradley D. Fahlman, Dajian Wang

Research output: Contribution to journalArticlepeer-review

39 Scopus citations

Abstract

In this work, a plasma treatment is employed to modify the surface properties of g-C3N4 photocatalyst to enhance its photocatalytic performance. A suite of characterization methods are used to investigate the influence of plasma treatment on the surface properties, such as morphology, hydrophilicity and chemical bonding states. The comparative photocatalytic performance of pristine g-C3N4 and the plasma-treated g-C3N4 (PT-g-C3N4) for the degradation of Rhodamine B (RhB) are demonstrated. The degradation efficiency under visible light irradiation for PT-g-C3N4 is >2.0 times as high as that of pristine g-C3N4. The remarkably enhanced photocatalytic performance for pollution degradation results from the optimization of the surface properties induced by plasma treatment. These findings may provide a promising and facile approach to design high-performance photocatalysts.

Original languageEnglish
Pages (from-to)651-659
Number of pages9
JournalCarbon
Volume123
DOIs
StatePublished - Oct 2017

Keywords

  • Environmental pollutants
  • Photocatalyst
  • Plasma treatment
  • Surface properties
  • g-CN

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