ONE STEP PREPARING OF WO3 NANOSHEETS USING ULTRASOUND-ASSISTED LIQUID-PHASE EXFOLIATION FOR PHOTOCATALYTIC DEGRADATION OF PARACETAMOL IN AQUEOUS SOLUTION

Hoàng Minh Trang; Nguyễn Mạnh Khải; Nguyễn Thị Mai; Đặng Văn Thành; Nguyễn Thị Hải Yến; Ngô Thị Mai Việt; Trần Quốc Toàn

doi:10.34238/tnu-jst.13100

ONE STEP PREPARING OF WO3 NANOSHEETS USING ULTRASOUND-ASSISTED LIQUID-PHASE EXFOLIATION FOR PHOTOCATALYTIC DEGRADATION OF PARACETAMOL IN AQUEOUS SOLUTION

About this article

Received: 21/06/25 Revised: 06/11/25 Published: 07/11/25

Authors

1. Hoang Minh Trang, University of Science - Vietnam National University, Hanoi
2. Nguyen Manh Khai, University of Science - Vietnam National University, Hanoi
3. Nguyen Thi Mai, 1) University of Science - Vietnam National University, Hanoi 2) TNU - University of Agriculture and Forestry
4. Dang Van Thanh, 1) University of Science - Vietnam National University, Hanoi 2) TNU - University of Pharmacy and Medicine
5. Nguyen Thi Hai Yen, TNU - University of Education
6. Ngo Thi Mai Viet, TNU - University of Education
7. Tran Quoc Toan , TNU - University of Education

Abstract

In this study, we report on the one-step preparation of WO₃ nanosheets from commercially available WO₃ powder by ultrasound-assisted liquid-phase exfoliation and their application for photocatalytic degradation of paracetamol in water. The characteristics of WO₃ nanosheets were studied by X-ray diffraction, field emission scanning electron microscopy, transmission electron microscope,UV-vis diffuse reflectance spectroscopy. The results showed that the initial WO₃plates with uneven particle size, in the micron size, were converted to WO₃ nanosheets with uniform size (50-100 nm) after 10 hours of exfoliating. The experimental results showed that with 200 mg of fabricated WO₃ nanomaterial, at pH=3, the paracetamol decomposition efficiency (concentration 10 ppm, volume 400 mL) reached 85.22% after 180 minutes of Xenon lamp light illumination. This research result has opened up a simple method of fabricating WO₃ nanosheets with great potential for application in the treatment of pollutants by photocatalytic degradation.

Keywords

Tungsten oxide; WO3 powder; WO3 nanosheets; Ultrasound; Paracetamol

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DOI: https://doi.org/10.34238/tnu-jst.13100

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