Cookies-like Ag2S/Bi4NbO8Cl heterostructures for high efficient and stable photocatalytic degradation of refractory antibiotics utilizing full-spectrum solar energy

Wu, Xilu; Zhang, Chang-wen; Nie, Zhen; Zhang, Yelong; Bai, Qiang; Yin, Zhengmao; Zhang, Shuai; Qu, Xiaofei; Du, Fanglin; Shi, Liang

doi:10.1016/j.seppur.2022.120969

Cited by 13 publications

(4 citation statements)

References 52 publications

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“…Simultaneously, along the c -axis direction, the different layers between [BaBiO 2 ] + and [Bi 2 O 2 ] 2+ are connected by X ions via van der Waals forces. 40 As is known, van der Waals forces, which are formed from the distribution of electric charges, are one of the weakest forces between molecules. 41 Therefore, during the preparation of the Sillén–Aurivillius perovskite oxyhalide by high-temperature calcination in previous works, the halogens, such as Cl, Br, and I, are easily lost, forming defects.…”

Section: Resultsmentioning

confidence: 99%

New insights into the synthesis of Sillén–Aurivillius oxyhalides: molten salts induce interlayer halogen competing reaction

Zhang,

Zhou,

et al. 2024

J. Mater. Chem. A

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Section: Resultsmentioning

confidence: 99%

New insights into the synthesis of Sillén–Aurivillius oxyhalides: molten salts induce interlayer halogen competing reaction

Zhang,

Zhou,

et al. 2024

J. Mater. Chem. A

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“…No chemical shift was observed after repeated use of the catalyst, indicating that the catalyst was chemically stable and the decay or leaching of the catalyst was not significant (Figure S12b−f). 56 C 1s showed that there was an additional O−C�O bond (at 288.9 eV) on the catalyst surface after the reaction. The O−C�O bond can be attributed to the adsorption of TC degradation intermediates by 3.6-Co/Al-LDH@Co 3 O 4 @Co-F, which covers the active site and reduces catalytic activity.…”

Section: Resultsmentioning

confidence: 99%

“…To further study the reasons for the better performance after reuse, different elements (C 1s, O 1s, Al 2p, and Co 2p) on the catalyst were detected by XPS after reuse. No chemical shift was observed after repeated use of the catalyst, indicating that the catalyst was chemically stable and the decay or leaching of the catalyst was not significant (Figure S12b–f) . C 1s showed that there was an additional O–CO bond (at 288.9 eV) on the catalyst surface after the reaction.…”

Section: Resultsmentioning

confidence: 99%

In Situ Growth of Z-Scheme Co/Al-LDH@Co₃O₄@Co-F Heterojunctions with Interfacial Enhancement and Synergistic Effects on a Cobalt Foam Surface for Environmental Remediation Studies

Niu,

Huang,

Lin

et al. 2023

ACS EST Water

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Co/Al-LDH nanosheet clusters and Co3O4 nanowires were successfully in situ grown on the surface of cobalt foam simultaneously. Co/Al-LDH nanosheet clusters enable multiple internal reflections of visible light, whereas Co3O4 nanowires act as a conductive network to accelerate electron transfer, and the two synergize with each other to enhance the conversion efficiency of light. Moreover, both of them can form a Z-scheme heterojunction structure and promote photocatalytic activity by surface oxygen vacancies and interfacial enhancement effects. A removal rate of 98.7% for tetracycline (TC) and 71.2% for TOC can be achieved under visible light irradiation for 120 min. The in situ growth of the active ingredient on the surface of Co-F can well maintain the structural and photocatalytic stability in a complex environment, allowing more than 10 cycles to be achieved. In addition, the simulated photocatalytic system enables efficient flow-through treatment of single or composite polluted water. After 8 h of flow-through treatment for real pharmaceutical wastewater under real sunlight, the COD and TOC removal rates reached to 67.8 and 56.2%, respectively. Ultimately, the comprehensive results of this study confirm the applicability of the simulated photocatalytic system for the treatment of low concentration and high toxicity antibiotic wastewater in the real environment.

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“…The e − /h + separation efficiency reflecting the utilization of electrons and holes generated from photo-catalysts was determined with the PL spectrum. Generally, the PL peak intensity positively relates to the recombination rate of e − /h + , and strong peak intensity means fast recombination rate [34,46]. On this basis, it can be inferred that the modification of K atoms and ammonium carbonate greatly improved the e − /h + separation efficiency of g-CN, with the best obtained at K 0.02 -CN(CA-3), which exhibited the weakest PL peak intensity among the materials, figure 6(f).…”

Section: Optical Propertiesmentioning

confidence: 99%

Metal doped graphitic carbon nitride prepared by a bubbling template method for photo-degradation of organic pollutants

Xiao¹,

Geng²,

Xu³

et al. 2022

J. Phys. D: Appl. Phys.

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A bubbling template method was used to prepare metal-doped graphitic carbon nitride (g-CN), with ammonium salts as the bubbling templates. Effects of metal types, metal loading, as well as the species and dosage of ammonium salts, on the structure, physicochemical properties and catalytic performances of g-CN were systematically investigated. Photocatalytic degradation of rhodamine B (RhB) was used as a model reaction to evaluate the catalytic performances of the materials. The results indicated that K0.02-CN(CA-3), which was prepared with K doping and with ammonium carbonate as the bubbling template, exhibited the best activity, with 99.7% RhB conversion obtained at 17.5 min, which is 3.2 times higher than that of g-CN. This can be attributed to the improved surface area, widened light absorption range and enhanced electron-hole separation efficiency of K0.02-CN(CA-3), as compared to these of g-CN. This material was also active for photo-degradation of other pollutants and has good reusability. A sketchy mechanism indicating the reactive intermediates of reaction was proposed.

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Cookies-like Ag2S/Bi4NbO8Cl heterostructures for high efficient and stable photocatalytic degradation of refractory antibiotics utilizing full-spectrum solar energy

Cited by 13 publications

References 52 publications

New insights into the synthesis of Sillén–Aurivillius oxyhalides: molten salts induce interlayer halogen competing reaction

New insights into the synthesis of Sillén–Aurivillius oxyhalides: molten salts induce interlayer halogen competing reaction

In Situ Growth of Z-Scheme Co/Al-LDH@Co₃O₄@Co-F Heterojunctions with Interfacial Enhancement and Synergistic Effects on a Cobalt Foam Surface for Environmental Remediation Studies

Metal doped graphitic carbon nitride prepared by a bubbling template method for photo-degradation of organic pollutants

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Cookies-like Ag2S/Bi4NbO8Cl heterostructures for high efficient and stable photocatalytic degradation of refractory antibiotics utilizing full-spectrum solar energy

Cited by 13 publications

References 52 publications

New insights into the synthesis of Sillén–Aurivillius oxyhalides: molten salts induce interlayer halogen competing reaction

New insights into the synthesis of Sillén–Aurivillius oxyhalides: molten salts induce interlayer halogen competing reaction

In Situ Growth of Z-Scheme Co/Al-LDH@Co3O4@Co-F Heterojunctions with Interfacial Enhancement and Synergistic Effects on a Cobalt Foam Surface for Environmental Remediation Studies

Metal doped graphitic carbon nitride prepared by a bubbling template method for photo-degradation of organic pollutants

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In Situ Growth of Z-Scheme Co/Al-LDH@Co₃O₄@Co-F Heterojunctions with Interfacial Enhancement and Synergistic Effects on a Cobalt Foam Surface for Environmental Remediation Studies