Email this article BORON DOPING AND POROSITY ENHANCE PHOTOCATALYTIC ACTIVITY OF GRAPHITIC CARBON NITRIDE FOR DICLOFENAC REMOVAL
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Received: 27/08/24 Revised: 03/12/24 Published: 03/12/24Authors
1. Nguyen Thuy Giang, 1) TNU - University of Agriculture and Forestry, 2) TNU - University of Medicine and Pharmacy2. Nguyen The Hung, TNU - University of Agriculture and Forestry
3. Hoang Van Hung, Thai Nguyen University
4. Nguyen Manh Dung, Hanoi University of Natural Resources and Environment
5. Nguyen Thi Khanh Van, TNU - University of Sciences
6. Nguyen Thi Hien Luong, Huyen Anh Education and Study Abroad Co., LTD,
7. Le Thi Thuy Linh, Phu Luong Agricultural Service Center, Thai Nguyen
8. Do Thi Lan
, TNU - University of Agriculture and Forestry
Abstract
Wastewater contains trace amounts of antibiotics and dye, which can harm ecosystems and human health. This study presents a novel photocatalyst, boron-doped graphitic carbon nitride (B-g-C3N4), as a potential solution. Developed through two steps using hydrothermal self-assembly and thermal polymerization, B-g-C3N4 exhibits a distinctive tubular structure. The unique tubular structure remarkably increases its surface area and optical absorption, effectively degrading DCF under visible light. Compared to pure g-C3N4, the B-g-C3N4 material has a slightly increased surface area (from 14.83 to 16.47 m2 g−1). Moreover, the incorporation of boron into the g-C3N4 matrix narrows the energy band gap from 2.74 eV to 2.67 eV, allowing the B-g-C3N4 to absorb more effectively in the visible light region. As a result, more electron-hole pairs are generated, effectively initiating the photocatalytic degradation process. As a result, B-g-C3N4 exhibits remarkable efficiency in degrading DCF, achieving nearly 99% elimination in 60 min under visible light illumination. The outcome emphasizes the potential of B-g-C3N4 as a promising choice for environmental remediation applications.
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DOI: https://doi.org/10.34238/tnu-jst.11013
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