Highly ordered 2D honeycomb polyoxometalate clusterphene for efficient photocatalytic degradation of organic pollutants: Mechanism, pathways, and toxicity evaluation

Zhang, Xinyi; Xu, Yiguo; Guo, Rongshuo; Chen, Yinxiang; Zhang, Ye

doi:10.1016/j.apsusc.2024.159675

Applied Surface Science

2024

DOI: 10.1016/j.apsusc.2024.159675

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Highly ordered 2D honeycomb polyoxometalate clusterphene for efficient photocatalytic degradation of organic pollutants: Mechanism, pathways, and toxicity evaluation

Xinyi Zhang,

Yiguo Xu,

Rongshuo Guo

et al.

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Cited by 6 publications

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Internal Electric Field‐Induced High‐Efficiency Piezo‐Photocatalytic Performance in Bimetal‐Regulated Layered Perovskite SrBi₂Nb₂O₉

Guo,

Zhang,

Chen

et al. 2024

Adv Funct Materials

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The piezoelectric effect is employed to enhance the photocatalytic process by enabling the efficient utilization of photogenerated electrons and holes. In this study, a defect‐engineered Na–Sm bimetal‐regulated layered ferroelectric material, SrBi2Nb2O9, is synthesized using a molten salt process, and exhibits excellent piezo‐photocatalytic performance in the synergistic removal of uranium [U(VI)] and tetracycline (TC) from wastewater. The incorporation of the Sm dopant creates an intermediate band structure, while the Na doping introduces empty orbitals into the conduction band, thereby enhancing the electrical conductivity, improving the electron mobility, and supplying sufficient electrons to promote catalytic reactions. Moreover, the doping induces an additional internal electric field, which combines the embedded field along the b‐axis with the polarization along the a‐axis. This combined effect enhances the anisotropic migration of photogenerated electrons and holes, facilitating their spatial separation. The doped SrBi2Nb2O9 can simultaneously remove 98% of U(VI) and degrade 99% of TC. Furthermore, a synergistic enhancement effect is observed between the U(VI) reduction and TC oxidation reactions, with the rate constant of U(VI) being 1.2 times higher than that of the individual system. This work presents an innovative strategy for designing layered ferroelectric catalysts able to simultaneously remove pollutants and optimize piezo‐photocatalytic redox reactions.

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Internal Electric Field‐Induced High‐Efficiency Piezo‐Photocatalytic Performance in Bimetal‐Regulated Layered Perovskite SrBi₂Nb₂O₉

Guo,

Zhang,

Chen

et al. 2024

Adv Funct Materials

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Enhanced synergistic removal of tetracycline and uranium in wastewater using Defective-Enriched S-scheme hollow dodecahedron K3PW12O40@WS2 heterojunction

Zhang,

Guo,

Wang

et al. 2024

Chemical Engineering Journal

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Construction of LED-light-driven Z-scheme WO3/Bi12O15Cl6 heterojunction for photocatalytic degradation and antimicrobial

Huang,

Qiu,

et al. 2025

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Highly ordered 2D honeycomb polyoxometalate clusterphene for efficient photocatalytic degradation of organic pollutants: Mechanism, pathways, and toxicity evaluation

Cited by 6 publications

References 84 publications

Internal Electric Field‐Induced High‐Efficiency Piezo‐Photocatalytic Performance in Bimetal‐Regulated Layered Perovskite SrBi₂Nb₂O₉

Internal Electric Field‐Induced High‐Efficiency Piezo‐Photocatalytic Performance in Bimetal‐Regulated Layered Perovskite SrBi₂Nb₂O₉

Enhanced synergistic removal of tetracycline and uranium in wastewater using Defective-Enriched S-scheme hollow dodecahedron K3PW12O40@WS2 heterojunction

Construction of LED-light-driven Z-scheme WO3/Bi12O15Cl6 heterojunction for photocatalytic degradation and antimicrobial

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Highly ordered 2D honeycomb polyoxometalate clusterphene for efficient photocatalytic degradation of organic pollutants: Mechanism, pathways, and toxicity evaluation

Cited by 6 publications

References 84 publications

Internal Electric Field‐Induced High‐Efficiency Piezo‐Photocatalytic Performance in Bimetal‐Regulated Layered Perovskite SrBi2Nb2O9

Internal Electric Field‐Induced High‐Efficiency Piezo‐Photocatalytic Performance in Bimetal‐Regulated Layered Perovskite SrBi2Nb2O9

Enhanced synergistic removal of tetracycline and uranium in wastewater using Defective-Enriched S-scheme hollow dodecahedron K3PW12O40@WS2 heterojunction

Construction of LED-light-driven Z-scheme WO3/Bi12O15Cl6 heterojunction for photocatalytic degradation and antimicrobial

Contact Info

Product

Resources

About

Internal Electric Field‐Induced High‐Efficiency Piezo‐Photocatalytic Performance in Bimetal‐Regulated Layered Perovskite SrBi₂Nb₂O₉

Internal Electric Field‐Induced High‐Efficiency Piezo‐Photocatalytic Performance in Bimetal‐Regulated Layered Perovskite SrBi₂Nb₂O₉