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One-step synthesis of Ag2S-TiO2 and its photocatalytic degradation of ethyl paraben wastewater

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Abstract

At first, naked TiO2 was prepared by sol-gel method. Silver nitrate and thiourea were respectively used as silver source and sulfur source added to form a TiO2 sol and Ag2S polymer blend system. Then, the properties of Ag2S-TiO2 was one-step synthesized and investigated by photocatalytic experiment and material characterization. According to the characterization results, Ag2S-TiO2 is anatase with a band gap of 3.14 eV, a specific surface area of 39.80 m2/g, and an average pore diameter of 3.56 nm. The results of photocatalytic experiments show that Ag2S-TiO2 can efficiently remove ethyl paraben within 2 h. Quenching experiments show that both •OH and photogenerated holes have a large effect on photocatalytic performance.

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Funding

This work is supported by the National Natural Science Foundation of China (51672196).

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Authors and Affiliations

  1. Wuhan University of Science and Technology, School of Urban Construction, Wuhan, 430065, China

    Xian Liu, Lei Zhu, Xun Wang & Xide Meng

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  1. Xian Liu
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  2. Lei Zhu
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  3. Xun Wang
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  4. Xide Meng
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Correspondence to Lei Zhu or Xun Wang.

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Liu, X., Zhu, L., Wang, X. et al. One-step synthesis of Ag2S-TiO2 and its photocatalytic degradation of ethyl paraben wastewater. Environ Sci Pollut Res 27, 13590–13598 (2020). https://doi.org/10.1007/s11356-020-07960-9

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