Green synthesis of H–ZSM-5 zeolite-anchored O-doped g–C3N4 for photodegradation of Reactive Red 195 (RR 195) under solar light

Xuan Nui Pham*, Hoa Thi Nguyen, Tuyet Nhung Pham, T.-Thanh-Bao Nguyen, Manh B Nguyen, Van Thi Tran Thi, Huan V Doan

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

Abstract

A novel oxygen-doped graphitic carbon nitride and zeolite (H-ZSM-5) composite (O–g–C3N4/H-ZSM-5) was synthesized using hydrogen peroxide and urea as the oxygen and g–C3N4 precursors, respectively, and perlite as the zeolite source, via calcination at 550°C. BET N2 adsorption-desorption analysis verified that the 40%O–g–C3N4/H-ZSM-5 composite had a high surface area of 259.13 m2/g with mesopores and micropores, and X-ray photoelectron spectroscopy (XPS) confirmed the existence of the O atom in the g–C3N4 framework. The obtained O–g–C3N4/H-ZSM-5 catalyst showed excellent photocatalytic performance for the photodegradation of RR 195, approximately 96.6% with a high rate constant of 0.1167min−1 under solar light irradiation without the use of H2O2. It also exhibited remarkable stability and long-term recyclability, with the photodegradation efficiency of RR 195 above 91%. In conclusion, the O–g–C3N4/H-ZSM-5 composite photocatalyst is suitable for numerous applications in the field of the photocatalytic degradation of organic pollutants.
Original languageEnglish
JournalJournal of the Taiwan Institute of Chemical Engineers
Early online date29 Sep 2020
DOIs
Publication statusE-pub ahead of print - 29 Sep 2020

Keywords

  • O–g–C3N4/H-ZSM-5
  • O–g–C3N4
  • zeolite
  • photodegradation
  • RR 195

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