Catalytic degradation of organic pollutants in water under visible light by BiOCl@NH2-MIL-125(Ti–Zr) composite photocatalyst

Yu, Zhengming; Lv, Yunkai; Zhang, Fang; Shi, Qi; An, Ke; Huang, Feng; Fan, Tingting; Li, Gang; Wang, Jing

doi:10.1007/s10854-022-08797-3

Cited by 8 publications

(1 citation statement)

References 30 publications

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“…As a potential barrier, the inner electric field built at the equilibrium of the electron and hole can form at the heterojunction interface to prevent recombination. 20 For example, Wang et.al and other research groups have successfully synthesized novel materials for degradation, such as g-C 3 N 4 @MIL-125(Ti), 21 BiOCl@NH 2 -MIL-125(Ti−Zr) 22 and TiO 2 @NH 2 -MIL-125. 23 However, there still exist some deficiencies similar to those of the original MIL-125(Ti).…”

Section: Introductionmentioning

confidence: 99%

CuS Nanoparticles/MIL-125(Ti) Heterojunction as Photocatalyst for the Photodegradation of Tetracycline

Xi,

Liu,

Fei

et al. 2024

ACS Appl. Nano Mater.

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is an attractive material in photocatalysis due to its notable characteristics, including its expansive specific surface area, porous structure, high thermal stability, and chemical resistance. Unfortunately, the high electron−hole recombination rate and weak utilization of visible light restrict its practical application. Here, a CuS nanoparticle/MIL-125(Ti) heterojunction with a compact interface contact was prepared by a facile hydrothermal method for photocatalytic tetracycline degradation. The aligned internal electric field and interface structure of the CuS nanoparticles/MIL-125(Ti) heterojunction show promise in effectively addressing the aforementioned challenges. Detailed characterization showed that CuS nanoparticles/MIL-125(Ti) generated a redshift in light absorption, and the photogenerated electron−hole recombination rate was reduced by about 67.5% compared with MIL-125(Ti), greatly improving the photocatalytic performance. Photogenerated electrons between the conductive band of CuS nanoparticles and MIL-125(Ti) with Ti 4+ to Ti 3+ reduction contributed to the enhanced photocatalytic performance, and the generated active species (h + , •OH, •O 2 − ) degraded tetracycline rapidly. The kinetic parameters of tetracycline degradation by the CuS/MIL-125(Ti) composite with an optimal doping amount are 12.7 and 7.9 times higher than those of a single component.

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Section: Introductionmentioning

confidence: 99%

CuS Nanoparticles/MIL-125(Ti) Heterojunction as Photocatalyst for the Photodegradation of Tetracycline

Xi,

Liu,

Fei

et al. 2024

ACS Appl. Nano Mater.

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Unlocking the unique catalysts of CoTiO3/BiVO4@MIL-Fe(53) for improving Cr(VI) reduction and tetracycline degradation

Liu,

Naraginti,

Zhang

et al. 2024

Carb Neutrality

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Environmental contamination by hexavalent chromium (Cr(VI)) and antibiotic drug residues pose significant challenges to public health and ecosystems. This study investigates the application of CoTiO3/BiVO4@MIL-Fe(53) (CT/BV@Fe-MOF) for the reduction of Cr(VI) and degradation of tetracycline (TCL) under visible light. After grafting an iron-based metal–organic framework MIL-Fe(53) on a modified CoTiO3/BiVO4 composite, the photogenerated electrons could easily be transferred from CoTiO3 to BiVO4/Fe-MOF species via interfacial charge transfer. UV–vis diffuse reflectance spectroscopy showed that charge carriers were formed in response to visible light absorption. The effect of different operating parameters, including catalyst load, pH, initial Cr(VI), and TCL concentration, was systematically evaluated during the photocatalytic process. The CT/BV@Fe-MOF composite exhibited 98.7% reduction efficiency in Cr(VI) (50 ppm) and 97.5% degradation efficiency towards TCL (30 ppm) within 90 min, resulting in a greater efficiency than the pristine CoTiO3, BiVO4, and Fe-MOF materials. The CT/BV@Fe-MOF composite displayed excellent stability over six cycles, highlighting its potential for practical applications. In addition, the plausible degradation pathway of TCL was evaluated using LC-ESI/MS analysis, while the TEST program was utilized to investigate the toxicity of the products generated during the degradation process.

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A flower-like heterojunction for highly photocatalytic treating oxytetracycline based on chrome-based metal-organic frameworks decorated BiOCl nanosheet

Wang,

Chen,

et al. 2024

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Catalytic degradation of organic pollutants in water under visible light by BiOCl@NH2-MIL-125(Ti–Zr) composite photocatalyst

Cited by 8 publications

References 30 publications

CuS Nanoparticles/MIL-125(Ti) Heterojunction as Photocatalyst for the Photodegradation of Tetracycline

CuS Nanoparticles/MIL-125(Ti) Heterojunction as Photocatalyst for the Photodegradation of Tetracycline

Unlocking the unique catalysts of CoTiO3/BiVO4@MIL-Fe(53) for improving Cr(VI) reduction and tetracycline degradation

A flower-like heterojunction for highly photocatalytic treating oxytetracycline based on chrome-based metal-organic frameworks decorated BiOCl nanosheet

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