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Removal of an organic pollutant from waste water by photocatalytic behavior of AgX/TiO2 loaded on mordenite nanocrystals

Research on Chemical Intermediates volume 38, pages 1975–1985 (2012)Cite this article

Abstract

Mordenite (MOR) nanocrystals were synthesized using the hydrothermal method. Sol–gel and deposition methods were utilized to modify the zeolite surface with TiO2 and then AgBr or AgCl particles. Photocatalysts were characterized by using X-ray diffraction, Brunauer–Emmett–Teller (BET), and scanning electron microscopy techniques. Activity was evaluated by photodegradation of Acid Blue 92 as an azo dye. The effect of silver halide deposition on the photocatalytic behavior of the prepared nanocomposites was studied under both ultraviolet (UV) and visible light, and the results were compared. The results showed that AgCl/TiO2/MOR was more active under UV, while with visible source, AgBr/TiO2/MOR exhibited better photocatalytic performance. A mechanism for the reaction is also proposed.

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Authors and Affiliations

  1. Department of Chemistry, Sharif University of Technology, Azadi Avenue, Tehran, Iran

    Mohsen Padervand, Hadi Salari, Seyedsaeid Ahmadvand & Mohammad Reza Gholami

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  1. Mohsen Padervand
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  2. Hadi Salari
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  3. Seyedsaeid Ahmadvand
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  4. Mohammad Reza Gholami
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Correspondence to Mohammad Reza Gholami.

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Padervand, M., Salari, H., Ahmadvand, S. et al. Removal of an organic pollutant from waste water by photocatalytic behavior of AgX/TiO2 loaded on mordenite nanocrystals. Res Chem Intermed 38, 1975–1985 (2012). https://doi.org/10.1007/s11164-012-0519-8

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