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One-pot construction of highly efficient TaON/Bi2O3/S-BiOCl ternary photocatalysts: Simultaneously integrating type-Ⅰ with Z-scheme junctions for improved visible light-driven removal of organic pollutants.
Yang, Xiaoli; Sun, Shaodong; Shi, Zhenzhen; Yun, Daqin; Guo, Yu; Liu, Chenxi; Yang, Bian; Yang, Man; Yang, Qing; Cui, Jie.
Affiliation
  • Yang X; Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education, Shaanxi Engineering Research Center of Metal-Based Heterogeneous Materials and Advanced Manufacturing Technology, Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology,
  • Sun S; Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education, Shaanxi Engineering Research Center of Metal-Based Heterogeneous Materials and Advanced Manufacturing Technology, Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology,
  • Shi Z; Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education, Shaanxi Engineering Research Center of Metal-Based Heterogeneous Materials and Advanced Manufacturing Technology, Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology,
  • Yun D; College of Energy, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, People's Republic of China.
  • Guo Y; Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education, Shaanxi Engineering Research Center of Metal-Based Heterogeneous Materials and Advanced Manufacturing Technology, Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology,
  • Liu C; Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education, Shaanxi Engineering Research Center of Metal-Based Heterogeneous Materials and Advanced Manufacturing Technology, Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology,
  • Yang B; Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education, Shaanxi Engineering Research Center of Metal-Based Heterogeneous Materials and Advanced Manufacturing Technology, Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology,
  • Yang M; Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education, Shaanxi Engineering Research Center of Metal-Based Heterogeneous Materials and Advanced Manufacturing Technology, Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology,
  • Yang Q; Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education, Shaanxi Engineering Research Center of Metal-Based Heterogeneous Materials and Advanced Manufacturing Technology, Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology,
  • Cui J; Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education, Shaanxi Engineering Research Center of Metal-Based Heterogeneous Materials and Advanced Manufacturing Technology, Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology,
Chemosphere ; 307(Pt 3): 135979, 2022 Nov.
Article de En | MEDLINE | ID: mdl-35977567
ABSTRACT
Bismuth oxychloride (BiOCl) has appeared as a popular candidate in photocatalysis field but is plagued by its poor visible light harvesting and low carriers-flow steering inherited from wide band gap. Integration of doping and heterojunction engineering into the bulk has proven to be an optimal and generally applied method for enabling excellent photocatalytic activity. Nevertheless, the previous reported BiOCl-based photocatalysts fabricated by the above strategies are still suffered from harsh synthesis process, poor interface stability and narrow application area. Here, we introduce a facile one-pot hydrothermal strategy to achieve in-situ growth of TaON as a medium on the surface of Bi2O3 and S-doped BiOCl (denoted as S-BiOCl) for constructing ternary TaON/Bi2O3/S-BiOCl heterostructures, which were obtained by the simultaneous coprecipitation and ripening process. Current investigation suggests that such a unique TaON/Bi2O3/S-BiOCl exhibits a relatively much higher photocatalytic activity for visible light-driven removal of rhodamine B (RhB), tetracycline (TC) and tetracycline hydrochloride (TC-HCl) than those of hybrid Bi2O3/S-BiOCl and pristine S-BiOCl. It is ascribed to the synergetic effect on the introduction of S dopant level in BiOCl lattice as well as the construction of intimate double heterointerfaces among Bi2O3, TaON and S-BiOCl, which endows the TaON/Bi2O3/S-BiOCl photocatalysts with considerable advantages for highly elevating photocatalytic performances, such as the intensive optical absorption, high redox potential as well as high-efficient photocharge separation originated from type-I and Z-scheme pathways. This work delivers novel insights for design and one-pot preparation of high-active BiOX (X = Cl, Br and I)-based photocatalysts towards organic dye and antibiotic removal in the future research.
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Texte intégral: 1 Collection: 01-internacional Base de données: MEDLINE Sujet principal: Polluants chimiques de l'eau / Polluants environnementaux Langue: En Journal: Chemosphere Année: 2022 Type de document: Article

Texte intégral: 1 Collection: 01-internacional Base de données: MEDLINE Sujet principal: Polluants chimiques de l'eau / Polluants environnementaux Langue: En Journal: Chemosphere Année: 2022 Type de document: Article