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Batch to continuous photocatalyst degradation of oxytetracycline using g-C3N4/Bi2MoO6/Clinoptilolite nanocomposite and application in lake water

Phuong Thu Le, Ngoc Thanh Truc Nguyen, Hong Nam Nguyen, Trung Dung Nguyen, Thu Phuong Nguyen, Tien Le, Thi Mai Thanh Dinh
Author affiliations

Authors

  • Phuong Thu Le \(^1\) University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Nghia Do Ward, Ha Noi, Viet Nam
  • Ngoc Thanh Truc Nguyen \(^1\) University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Nghia Do Ward, Ha Noi, Viet Nam https://orcid.org/0009-0004-2957-1509
  • Hong Nam Nguyen \(^1\) University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Nghia Do Ward, Ha Noi, Viet Nam
  • Trung Dung Nguyen \(^2\) Le Quy Don Technical University, 236 Hoang Quoc Viet Street, Nghia Do Ward, Ha Noi, Viet Nam
  • Thu Phuong Nguyen \(^1\) University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Nghia Do Ward, Ha Noi, Viet Nam https://orcid.org/0000-0002-6066-5712
  • Tien Le \(^1\) University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Nghia Do Ward, Ha Noi, Viet Nam
  • Thi Mai Thanh Dinh \(^1\) University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Nghia Do Ward, Ha Noi, Viet Nam

DOI:

https://doi.org/10.15625/2525-2518/21896

Keywords:

oxytetracycline, continuous photocatalytic system, g-C3N4/Bi2MoO6/Clinoptilolite nanocomposite

Abstract

Oxytetracycline (OTC) is widely used in aquaculture; however, increasing residue in water has contributed to antibiotic pollution and increased antibiotic resistance. A novel nanocomposite material - g-C3N4/Bi2MoO6/Clinoptilolite (CNBC), has been demonstrated to effectively degrade OTC in water via photocatalysis in both batch and continuous systems.  The composite material was successfully synthesized by the solvo-thermal process under the conditions of (a precursor ratio of 14:56:30 (g-C3N4:Bi2MoO6:Clinoptilolite). Physicochemical characterization results (FT-IR, XRD and FE-SEM, and EDX) showed that g-C3N4/Bi2MoO6 was homogeneously dispersed on the surface of Clinoptilolite. The OTC degradation efficiency was 100 % with a catalyst content of 150 mg/L, while with 500 mg/L the efficiency was only 85.81 % in the batch system. These results suggest that this nanocomposite could be an effective solution for removing OTC from water on an industrial scale, helping to solve the problem of antibiotic pollution in the aquatic environment.

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Published

08-08-2026

How to Cite

Le, P. T., Nguyen, N. T. T., Nguyen, H. N., Nguyen, T. D., Nguyen, T. P., Le, T., & Dinh, T. M. T. (2026). Batch to continuous photocatalyst degradation of oxytetracycline using g-C3N4/Bi2MoO6/Clinoptilolite nanocomposite and application in lake water. Vietnam Journal of Science and Technology. https://doi.org/10.15625/2525-2518/21896

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Environment

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