Preparation of N-TiO<sub>2</sub> photocatalyst and its degradation of organic pollutants under blue LED light

ZOU Jingtao; LI Xuankun; LI Guanghui; ZHANG Wenqi; SUN Wen

doi:10.12299/jsues.22-0190

Volume 37 Issue 4

Dec. 2023

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Article Navigation > Journal of Shanghai University of Engineering Science > 2023 > 37(4): 351-358

ZOU Jingtao, LI Xuankun, LI Guanghui, ZHANG Wenqi, SUN Wen. Preparation of N-TiO2 photocatalyst and its degradation of organic pollutants under blue LED light[J]. Journal of Shanghai University of Engineering Science, 2023, 37(4): 351-358. doi: 10.12299/jsues.22-0190

Citation:

ZOU Jingtao, LI Xuankun, LI Guanghui, ZHANG Wenqi, SUN Wen. Preparation of N-TiO₂ photocatalyst and its degradation of organic pollutants under blue LED light[J]. Journal of Shanghai University of Engineering Science, 2023, 37(4): 351-358. doi: 10.12299/jsues.22-0190

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Preparation of N-TiO₂ photocatalyst and its degradation of organic pollutants under blue LED light

doi: 10.12299/jsues.22-0190

School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China

Received Date: 2022-06-22
Publish Date: 2023-12-30

Abstract

Abstract

Nitrogen-doped titanium dioxide (N-TiO₂) photocatalyst was synthesized by mechanochemical, hydrolysis precipitation and sol-gel method respectively. With the application of Methylene blue (MB) and tetraccycline hydrochloride (TTC) as the target pollutants, N-TiO₂-H synthesized by hydrolysis precipitation method has high photocatalysis activity under blue LED irradiation, uniform particle distribution and no agglomeration. Therefore, N-TiO₂-H was selected to study the effects of calcination temperature, catalyst dosage, pH and initial concentration of organic pollutants by photocatalysis. The results showed that N-TiO₂-H calcined at 400 ℃ had the best photocatalytic activity under blue LED light irradiation. Under the dosage of 0.5 g/L N-TiO₂-H, the photocatalytic degradation of MB with initial concentration of 5 mg/L, pH=7, MB removal was 89.7% after 2 h, and the photocatalytic degradation of TTC with initial concentration of 50 mg/L, pH=5, TTC removal was 75.2% after 1.5 h.
- nitrogen-doped titanium dioxide (N-TiO₂),
- blue LED light,
- photocatalysis,
- methylene blue (MB),
- tetracycline hydrochloride

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References(23)

References

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