Photocatalytic enhancement mechanism insight for BiVO4 induced by plasma treatment under different atmospheres

Cai, Yanfei; Qin, Chan; Zhong, Jianxin; Li, Jianzhang; Huang, Shengtian; Wang, Qi; Ma, Li

doi:10.1016/j.jallcom.2021.161883

Cited by 32 publications

(12 citation statements)

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“…The photocatalytic efficiency of photocatalysts toward the removal of TC and OTC antibiotics has been previously studied [ 2 , 3 , 4 , 6 , 7 , 8 , 9 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 ]. In this work, the BiVO 4 catalyst was used for the degradation of TC and OTC antibiotics under visible light and solar light.…”

Section: Resultsmentioning

confidence: 99%

“…Interestingly, an enhanced efficiency of 90–99% can be obtained by the generation of ternary composites [ 4 , 40 , 41 , 42 ]. On examining TC removal, the bare BiVO 4 showed a low efficiency of 20–60% [ 2 , 7 , 8 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 ]. The two-component photocatalysts showed an efficiency of 28–92% [ 2 , 7 , 8 , 9 , 44 , 46 , 47 , 48 , 50 , 51 , 52 , 53 ].…”

Section: Resultsmentioning

confidence: 99%

“…On examining TC removal, the bare BiVO 4 showed a low efficiency of 20–60% [ 2 , 7 , 8 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 ]. The two-component photocatalysts showed an efficiency of 28–92% [ 2 , 7 , 8 , 9 , 44 , 46 , 47 , 48 , 50 , 51 , 52 , 53 ]. The BiVO 4 -based ternary composites showed an enhanced performance of 68–96% [ 8 , 9 , 44 , 49 , 50 ].…”

Section: Resultsmentioning

confidence: 99%

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Enhanced Photocatalytic Degradation of Tetracycline and Oxytetracycline Antibiotics by BiVO4 Photocatalyst under Visible Light and Solar Light Irradiation

2022

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The efficient degradation of a toxic antibiotic from an aqueous solution is essential for environmental protection. Our research aimed to fabricate a bismuth vanadate (BiVO4) catalyst via a facile hydrothermal method. The prepared catalyst exhibited a monoclinic phase with a band gap energy of 2.33 eV, indicating the excellent visible-light-active properties of a semiconductor. The photocatalytic performance of the synthesized BiVO4 catalyst was studied by determining the removal of tetracycline (TC) and oxytetracycline (OTC) antibiotics. After 240 min, under sunlight conditions, a high performance of 72% and 83% degradation of TC and OTC, respectively, was achieved. The photocatalytic degradation of the antibiotics correlates well with a first-order reaction, with a high rate constant of 0.0102 min−1. Photogenerated electrons and holes played an important role in the removal of the pollutant. After photocatalytic study, the structural stability of the prepared bismuth vanadate photocatalyst was confirmed. The photocatalyst provided a promising performance even after five successive runs. The result indicates the excellent cycling ability of the sample. The present work demonstrates a promising route for the preparation of a BiVO4 catalyst for the complete removal of toxic antibiotics in aqueous solutions.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Enhanced Photocatalytic Degradation of Tetracycline and Oxytetracycline Antibiotics by BiVO4 Photocatalyst under Visible Light and Solar Light Irradiation

2022

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“…According to their DFT calculations, the performance improvement is mainly due to the increase in donor densities caused by the formation of OVs and the doping of H. Yang et al analyzed differences in modifying BiVO 4 by creating OVs under different gas treatments (Ar, N 2 , and H 2 ). 75 Although the photoanodes under three gas treatments all produced OVs, there are some differences between them (Figure 11). The Ar treatment (Ar−BVO) simply makes OVs.…”

Section: Defect Modificationmentioning

confidence: 99%

“…Yang et al analyzed differences in modifying BiVO 4 by creating OVs under different gas treatments (Ar, N 2 , and H 2 ) . Although the photoanodes under three gas treatments all produced OVs, there are some differences between them (Figure ).…”

Section: Modification Of Bivo4 For Pec Water Splittingmentioning

confidence: 99%

Visible Light Photoanode Material for Photoelectrochemical Water Splitting: A Review of Bismuth Vanadate

et al. 2022

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Photoelectrochemical (PEC) technology for water splitting has been regarded as one of the most appealing and environmentally friendly approaches to converting light energy into hydrogen energy. The semiconductor material used as the photoelectrode is considered to be the most important factor affecting the efficiency of the PEC system. Bismuth vanadate (BiVO 4 ), as a n-type semiconductor material, has a wide light absorption range, strong catalytic ability, high stability, and low cost, which makes it one of the most promising candidates as a photoanode material for PEC water splitting. Since the first report of BiVO 4 , tremendous efforts have been devoted to exploring different strategies for the synthesis and structural modification of BiVO 4 to enhance its PEC performance, which has led to remarkable progress in recent years. This review attempts to summarize such considerable progress of BiVO 4 for PEC water splitting, mainly focusing on the synthetic methods and modification strategies. In the end, the personal perspectives on the challenges and opportunities of this promising material are proposed.

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Synergistic modulation of oxygen vacancies and carbon atoms in TiO₂ via a simple pot‐in‐pot reaction for improved visible‐light‐driven photocatalytic performances

Cui,

Li,

Zhang

et al. 2023

ChemistrySelect

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Novel synthesis methods are urgently expected for visible‐light‐driven photocatalysts. Hereby we report a series of TiO2‐based photocatalysts (T‐x) by using a simple pot‐in‐pot reaction approach. In this approach, two reaction media are isolated from each other by the crucible reactor. The obtained T‐x sample shows nanosheet‐aggregate structure and wide visible‐light absorption property with an optimal bandgap of 2.35 eV. Factors that influence the bandgap modulation, including nitrogen, fluorine, carbon and oxygen vacancy etc., are discussed in detail. Characterization results demonstrate a substantial increase of oxygen vacancies and carbon atoms in T‐x sample, which were proven to the main reason for the extended visible‐light absorption and enhanced photocatalytic performance. Under visible‐light irradiation, T‐x sample shows excellent photocatalytic degradation activity for RhB with a k value of 0.027 min−1 and good photoelectrochemical performance. Trapping experiments reveal that ⋅OH are the main active species to oxidize the RhB dye. This new pot‐in‐pot reaction approach enables synthesis of novel photocatalytic materials with wide visible‐light‐response.

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Photocatalytic enhancement mechanism insight for BiVO4 induced by plasma treatment under different atmospheres

Cited by 32 publications

References 59 publications

Enhanced Photocatalytic Degradation of Tetracycline and Oxytetracycline Antibiotics by BiVO4 Photocatalyst under Visible Light and Solar Light Irradiation

Enhanced Photocatalytic Degradation of Tetracycline and Oxytetracycline Antibiotics by BiVO4 Photocatalyst under Visible Light and Solar Light Irradiation

Visible Light Photoanode Material for Photoelectrochemical Water Splitting: A Review of Bismuth Vanadate

Synergistic modulation of oxygen vacancies and carbon atoms in TiO₂ via a simple pot‐in‐pot reaction for improved visible‐light‐driven photocatalytic performances

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Photocatalytic enhancement mechanism insight for BiVO4 induced by plasma treatment under different atmospheres

Cited by 32 publications

References 59 publications

Enhanced Photocatalytic Degradation of Tetracycline and Oxytetracycline Antibiotics by BiVO4 Photocatalyst under Visible Light and Solar Light Irradiation

Enhanced Photocatalytic Degradation of Tetracycline and Oxytetracycline Antibiotics by BiVO4 Photocatalyst under Visible Light and Solar Light Irradiation

Visible Light Photoanode Material for Photoelectrochemical Water Splitting: A Review of Bismuth Vanadate

Synergistic modulation of oxygen vacancies and carbon atoms in TiO2 via a simple pot‐in‐pot reaction for improved visible‐light‐driven photocatalytic performances

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Product

Resources

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Synergistic modulation of oxygen vacancies and carbon atoms in TiO₂ via a simple pot‐in‐pot reaction for improved visible‐light‐driven photocatalytic performances