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Influencing Factors and Kinetics of Modified Shell Powder/La-Fe-TiO 2 Photocatalytic Degradation of Pyridine Wastewater

Author

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  • Jinkai Shu

    (School of Municipal and Surveying Engineering, Hunan City University, Yiyang 413000, China
    School of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
    Hunan Provincial Village Drinking Water Quality Safety Engineering Technology Research Center, Yiyang 413000, China
    Hunan Provincial Key Laboratory of Shale Gas Resource Exploitation, Xiangtan 411201, China)

  • Bozhi Ren

    (School of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
    Hunan Provincial Village Drinking Water Quality Safety Engineering Technology Research Center, Yiyang 413000, China
    Hunan Provincial Key Laboratory of Shale Gas Resource Exploitation, Xiangtan 411201, China)

  • Wei Zhang

    (School of Municipal and Surveying Engineering, Hunan City University, Yiyang 413000, China
    Hunan Provincial Village Drinking Water Quality Safety Engineering Technology Research Center, Yiyang 413000, China)

  • An Wang

    (School of Municipal and Surveying Engineering, Hunan City University, Yiyang 413000, China
    Hunan Provincial Village Drinking Water Quality Safety Engineering Technology Research Center, Yiyang 413000, China)

  • Sen Lu

    (School of Municipal and Surveying Engineering, Hunan City University, Yiyang 413000, China
    Hunan Provincial Village Drinking Water Quality Safety Engineering Technology Research Center, Yiyang 413000, China)

  • Shuyu Liu

    (School of Municipal and Surveying Engineering, Hunan City University, Yiyang 413000, China)

Abstract

Modified Shell Powder/La-Fe-TiO 2 (La-Fe-TiO 2 @MSP) composites were fabricated using the sol-gel method and characterized by SEM, XRD, UV-vis DRS and photocurrent techniques, and their physicochemical and optical properties were analyzed. The effects of various factors on the photocatalytic degradation of pyridine and its reaction kinetics were investigated by batch experiments using pyridine, a typical nitrogen-containing heterocyclic compound in coal chemical wastewater, as the target removal species. The pyridine degradation rate of 80.23% was obtained for 800 mg/L composite solution by photocatalytic oxidation of 50 mg/L pyridine wastewater for 180 min at 35 °C, pH = 8 and light intensity of 560 W. The photocatalytic degradation performance was optimal. The quenching experiments determined that the active species of photodegradation were mainly hole and hydroxyl radicals, and the photocatalytic degradation mechanism was analyzed in this way.

Suggested Citation

  • Jinkai Shu & Bozhi Ren & Wei Zhang & An Wang & Sen Lu & Shuyu Liu, 2022. "Influencing Factors and Kinetics of Modified Shell Powder/La-Fe-TiO 2 Photocatalytic Degradation of Pyridine Wastewater," IJERPH, MDPI, vol. 19(22), pages 1-16, November.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:22:p:14835-:d:969647
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    References listed on IDEAS

    as
    1. Maria Visa & Mihaela Cosnita & Macedon Moldovan & Cosmina Andreea Marin & Maria Mihaly, 2021. "Fly Ash Waste Recycling by Pt/TiO 2 Incorporation for Industrial Dye Removal," IJERPH, MDPI, vol. 18(8), pages 1-18, April.
    2. Chengzhi Zhou & Yanlong Sun & Fan Zhang & Yuandong Wu, 2021. "Degradation of Minocycline by the Adsorption–Catalysis Multifunctional PVDF–PVP–TiO 2 Membrane: Degradation Kinetics, Photocatalytic Efficiency, and Toxicity of Products," IJERPH, MDPI, vol. 18(23), pages 1-13, November.
    3. Yanmin Yu & Ke Liu & Yangyang Zhang & Xuan Xing & Hua Li, 2022. "High Photocatalytic Activity of g-C 3 N 4 /La-N-TiO 2 Composite with Nanoscale Heterojunctions for Degradation of Ciprofloxacin," IJERPH, MDPI, vol. 19(8), pages 1-17, April.
    4. Aida M. Díez & Marta Pazos & M. Ángeles Sanromán & Yury V. Kolen’ko, 2022. "GO-TiO 2 as a Highly Performant Photocatalyst Maximized by Proper Parameters Selection," IJERPH, MDPI, vol. 19(19), pages 1-14, September.
    5. Xiang Guo & Lei Rao & Zhenyu Shi, 2022. "Preparation of High-Porosity B-TiO 2 /C 3 N 4 Composite Materials: Adsorption–Degradation Capacity and Photo-Regeneration Properties," IJERPH, MDPI, vol. 19(14), pages 1-16, July.
    6. Xianping Luo & Junyu Wang & Chunying Wang & Sipin Zhu & Zhihui Li & Xuekun Tang & Min Wu, 2016. "Degradation and Mineralization of Benzohydroxamic Acid by Synthesized Mesoporous La/TiO 2," IJERPH, MDPI, vol. 13(10), pages 1-14, October.
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