Single-step synthesis of oxygen-doped hollow porous graphitic carbon nitride for photocatalytic ciprofloxacin decomposition

Chitiphon Chuaicham, Karthikeyan Sekar, Yihuang Xiong, Vellaichamy Balakumar, Yanisa Mittraphab, Kuniyoshi Shimizu, Bunsho Ohtani, Ismaila Dabo, Keiko Sasaki

研究成果: Contribution to journalArticle査読

1 被引用数 (Scopus)

抄録

Pollutants degradation via visible-light driven photocatalysts have attracted interest as a potentially efficient and sustainable approach for wastewater treatment. In the present study, a series of oxygen-doped hollow porous surface graphitic carbon nitride (OCN) has been prepared by one-pot thermal polycondensation of melamine with different amounts of polyoxyethylene stearyl ether as the oxygen source and template. The prepared OCN samples were utilized for the photocatalytic ciprofloxacin (CIP) degradation, which is a pharmaceutical waste, under visible light irradiation. The highest degradation performance for CIP was obtained from the OCN sample with 1 mg polyoxyethylene stearyl, which was three times greater than that of pristine C3N4. The superior degradation performance of the OCN samples were observed due to the improved light absorption, less recombination rate of photogenerated electron and hole, and enhanced electron transportation, which was proven through the PL, photocurrent density, and EIS results. Thus, the proposed one-pot synthesis of OCN provides an effective method in producing potential photocatalysts for the removal of organic pollutants, such as discarded pharmaceuticals, in wastewater.

本文言語英語
論文番号130502
ジャーナルChemical Engineering Journal
425
DOI
出版ステータス出版済み - 12 1 2021

All Science Journal Classification (ASJC) codes

  • 化学 (全般)
  • 環境化学
  • 化学工学(全般)
  • 産業および生産工学

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