Synthesis of novel ternary heterogeneous anatase-TiO (B) biphase nanowires/BiOI composite photocatalysts for the highly efficient degradation of acetaminophen under visible light irradiation.

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ID: 29673
2019
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Abstract
BiOI loaded anatase-TiO (B) biphase nanowires composite photocatalysts were fabricated by an in situ calcination method and exhibited outstanding photocatalytic activity. The microstructure, optical performance and band structure of the composite photocatalysts were investigated by relevant characterizations. The results demonstrated the successful formation of heterojunction between anatase-TiO (B) biphase nanowires and BiOI, which integrated the advantages of homojunction and heterojunction. Therefore, it definitely improved separation efficiency of photo-induced electron-holes because of the formation of multi-junctions. In order to test the enhanced photocatalytic activity, acetaminophen was chosen as target pollutant. The sample with 67% BiOI (TiO-BiOI-3) presented the highest photocatalytic activity on the degradation of acetaminophen and its reaction apparent rate constant was 10 and 25 times as that of BiOI and TiO biphase nanowires, respectively. Through trapping experiments and LC-MS/MS analysis, OH was proved to be the key active specie during the photocatalytic process of acetaminophen degradation. Meanwhile a possible degradation pathway was proposed based on the detected intermediate products.
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mu2019synthesisjournal Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Mu, Ronghua;Ao, Yanhui;Wu, Tengfei;Wang, Chao;Wang, Peifang;
Journal Journal of hazardous materials
Year 2019
DOI
S0304-3894(19)31037-4
URL
Keywords Keywords not found

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