Synergistic removal of organic pollutants from water by CTF/BiVO4 heterojunction photocatalysts

Yu, Yan; Sun, Yuhan; Ge, Beixiao; Yan, Jingwei; Zhang, Kaili; Chen, Hui; Hu, Jinxing; Tang, Juntao; Song, Shuang; Zeng, Tao

doi:10.1007/s11356-022-24184-1

Cited by 8 publications

(1 citation statement)

References 66 publications

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“…Compared to their corresponding single-component counterparts, heterostructures are generated through the modulation of the catalyst's surface charge state. Heterostructures with higher catalytic capabilities can overcome the weak oxidative ability and reduced reductive ability of single-component CTFs, while also satisfying requirements for long-term stability, wide absorption spectra, strong redox ability, and high charge separation efficiency [ 37 , [180] , [181] , [182] , [183] , [184] , [185] , [186] , [187] , [188] , [189] , [190] , [191] ]. Therefore, the meticulous design and fabrication of heterogeneous structural materials with unique structures have become an important approach to enhance catalytic performance.…”

Section: Catalytic Mechanism and Modification Strategy Of Ctfs Photoc...mentioning

confidence: 99%

Efficient integration of covalent triazine frameworks (CTFs) for augmented photocatalytic efficacy: A review of synthesis, strategies, and applications

Li,

Mao,

Yang

et al. 2024

Heliyon

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Section: Catalytic Mechanism and Modification Strategy Of Ctfs Photoc...mentioning

confidence: 99%

Efficient integration of covalent triazine frameworks (CTFs) for augmented photocatalytic efficacy: A review of synthesis, strategies, and applications

Li,

Mao,

Yang

et al. 2024

Heliyon

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Sustainable magnetically recoverable Iridium-coated Fe3O4 nanoparticles for enhanced catalytic reduction of organic pollutants in water

Diksha

Kaur

Yempally

et al. 2023

Environ Sci Pollut Res

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In the present study, modi ed Fe 3 O 4 nanoparticles were fabricated by surface coating with tryptophan and Iridium by coprecipitation method to afford Fe 3 O 4 @trp@Ir magnetic nanoparticles. As-prepared Fe 3 O 4 @trp@Ir nanoparticles are environmentally benign e cient catalysts for reducing organic pollutants such as 4-nitrophenol (4-NP), 4-nitroaniline (4-NA), and 1-bromo-4-nitrobenzene (1-B-4-NB). The key parameters that affect the catalytic activity like temperature, catalyst loading, and the concentration of reducing agent NaBH 4 were optimized. The obtained results proved that Fe 3 O 4 @trp@Ir is an e cient catalyst for reducing nitroaromatics at ambient temperature with a minimal catalyst loading of 0.0025%. The complete conversion of 4-nitrophenol to 4-aminophenol took only 20 seconds with a minimal catalyst loading of 0.0025% and a rate constant of 0.0522 s − 1 . The high catalytic activity factor (1.040 s − 1 mg − 1 ) and high turnover frequency (9 min − 1 ) obtained for Fe 3 O 4 @trp@Ir nanocatalyst highlight the possible synergistic effect of the two metals (Fe and Ir). The visible-light photocatalytic degradation of 4-NP was also investigated in the presence of Fe 3 O 4 @trp@Ir. The photocatalytic degradation of 4-NP by Fe 3 O 4 @trp@Ir is completed in 20 min with 95.15% e ciency, and the rate of photodegradation of 4-NP (0.1507 min − 1 ) is about twice the degradation rate of 4-NP in the dark (0.0755 min − 1 ). The catalyst was recycled and reused for ve cycles without signi cant reduction in the conversion e ciency of the catalyst.

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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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Synergistic removal of organic pollutants from water by CTF/BiVO4 heterojunction photocatalysts

Cited by 8 publications

References 66 publications

Efficient integration of covalent triazine frameworks (CTFs) for augmented photocatalytic efficacy: A review of synthesis, strategies, and applications

Efficient integration of covalent triazine frameworks (CTFs) for augmented photocatalytic efficacy: A review of synthesis, strategies, and applications

Sustainable magnetically recoverable Iridium-coated Fe3O4 nanoparticles for enhanced catalytic reduction of organic pollutants in water

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

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