Journal of Alloys and Compounds2022，Vol.91615.DOI:10.1016/j.jallcom.2022.165331

Prussian Blue decorated g-C3N4 - From novel synthesis to insight study on charge transfer strategy for improving visible-light driven photo-Fenton catalytic activity

Thi, Lan Nguyen Phan, Thi Thuy Trang Ngoc, Tri Nguyen Viswanath, N. S. M. Le, Hang T. T. Thi, Lan Tran Tien-Trung, Nguyen Nguyen, Le Tuan Nhiem, Dao Ngoc Huu, Ha Tran Vo, Vien
Journal of Alloys and Compounds2022，Vol.91615.DOI:10.1016/j.jallcom.2022.165331
✕
  • NSTL
  • Elsevier

Prussian Blue decorated g-C3N4 - From novel synthesis to insight study on charge transfer strategy for improving visible-light driven photo-Fenton catalytic activity

Thi, Lan Nguyen 1Phan, Thi Thuy Trang 1Ngoc, Tri Nguyen 1Viswanath, N. S. M. 2Le, Hang T. T. 3Thi, Lan Tran 1Tien-Trung, Nguyen 1Nguyen, Le Tuan 1Nhiem, Dao Ngoc 4Huu, Ha Tran 1Vo, Vien1
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作者信息

  • 1. Quy Nhon Univ
  • 2. Chonnam Natl Univ
  • 3. Hanoi Univ Sci & Technol
  • 4. Vietnam Acad Sci & Technol
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Abstract

To overcome the limitations in the reversibility of Fe2+/Fe3+ in the Fenton reaction, a reasonable concept of the addition of photoinduced electron donors has been developed. In this study, a facile solid-state reaction has been used to synthesize composites of Prussian Blue and g-C3N4 as an effective catalyst in the photo Fenton reaction for organic pollutants decomposition. As a result, the degradation efficiencies of Rhodamine B and Tetracycline under the photo-Fenton catalytic process are 94.1% and 84.3%, respectively, after 60 min of treatment. Therein, a step-scheme model of electron-hole transport accelerated by a built-in electric field was ascribed as the origin of the significant improvement in the catalytic performance of the composites. A reasonable pathway for charge carrier transfer was proposed and demonstrated by both experimental and calculation proofs. Furthermore, the theoretical calculation result indicates that the decomposition of H2O2 to hydroxyl radicals is preferable on Prussian Blue, while the g-C3N4 is considered an electron-generator. Additionally, the decomposition mechanism of organic pollutants under the photo-Fenton reaction of the composites was also investigated. (C) 2022 Elsevier B.V. All rights reserved.

Key words

Prussian Blue/g-C3N4/Photo-Fenton reaction/Catalysis/S-scheme/Wastewater treatment/GRAPHITIC CARBON NITRIDE/PHOTOCATALYTIC DEGRADATION/RAMAN-SPECTROSCOPY/OPTICAL-PROPERTIES/AQUEOUS-SOLUTION/FERMI-LEVEL/TETRACYCLINE/SEMICONDUCTOR/CONSTRUCTION/PERFORMANCE

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出版年

2022
Journal of Alloys and Compounds

Journal of Alloys and Compounds

EISCI
ISSN：0925-8388
被引量7
参考文献量76
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