Visible-Light-Driven SO42-/TiO2 Photocatalyst Synthesized from Binh Dinh (Vietnam) Ilmenite Ore for Rhodamine B Degradation

Journal of Nanomaterials - Tập 2021 - Trang 1-13 - 2021
Tan Lam Nguyen1, Viet Dinh Quoc1, Thi Lan Huong Nguyen1, Thi Thanh Thuy Le1, Thanh Khan Dinh2, Van Thang Nguyen1, Nguyễn Phi Hùng3
1Faculty of Natural Sciences, Quy Nhon University, 55000, Vietnam
2Faculty of Physics, University of Science and Education, The University of Danang, 50000, Vietnam
3QNU Institute of Educational Sciences (QNIES), Quy Nhon University, 55000, Vietnam

Tóm tắt

A low-cost and simplistic approach for the synthesis of nanosized SO42-/TiO2 photocatalyst was successfully performed using Binh Dinh ilmenite ore and H2SO4 as titanium and sulfur sources, respectively. The experimental results indicate that the obtained material exists in the form of particles with a size of about 22 nm and has a specific surface area of about 49 m2 g-1. Compared with the TiO2 sample, the SO42-/TiO2 sample shows much higher photocatalytic degradation of rhodamine B (RhB) under the sunlight irradiation. In more details, the nanosized SO42-/TiO2 sample obtained is capable of completely decomposing RhB after 9 hours of irradiation by a 60 W LED lamp with a corresponding intensity of 9,500 Lux. However, when the SO42-/TiO2 is irradiated by the sunlight with the intensity of 65,000 Lux, it only takes 2 hours to completely decompose rhodamine B (RhB), facilitating the use of SO42-/TiO2 as a potential photocatalyst for the RhB photodegradation.

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Journal of Nanomaterials

Tập 2021

1-13

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