Enhanced visible-light-induced photocatalytic degradation of tetracycline using BiOI/MIL-125(Ti) composite photocatalyst

Jiang, Wei; Li, Zhi; Liu, Chunbo; Wang, Dandan; Yan, Guosong; Liu, Bo; Che, Guangbo

doi:10.1016/j.jallcom.2020.157166

Cited by 153 publications

(32 citation statements)

References 68 publications

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“…Therefore, h + cannot oxidize the OH to form •OH in water, while the h + in NH 2 -MIL-125(Ti) was rapidly consumed when h + recombines with e − in BiOI and NH 2 -MIL-125(Ti), so the active species that played a major role was the h + on BiOI. Holes (h + ) oxidized RhB and P-CP to decompose them into CO 2 , H 2 O, and inorganic acids, which was consistent with the results of trapping experiments and related literature [37].…”

Section: Proposed Mechanism For the Bioi/nh 2 -Mil-125(ti) Compositesupporting

confidence: 89%

The Research on the Construction and the Photocatalytic Performance of BiOI/NH2-MIL-125(Ti) Composite

Zhang

Yang

et al. 2020

Catalysts

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The BiOI/NH2-MIL-125(Ti) composite photocatalyst with excellent photocatalytic performance was prepared by the solvothermal method. For the BiOI/NH2-MIL-125(Ti) (BNMT) system, the contents of NH2-MIL-125(Ti) in BNMT-4, BNMT-5, BNMT-7, BNMT-9, and BNMT-10 were 4 wt %, 5 wt %, 7 wt %, 9 wt %, and 10 wt %, respectively. XRD, XPS, SEM, and TEM characterizations indicated that BiOI/NH2-MIL-125(Ti) was successfully prepared. Brunauer, Emmett, and Teller (BET) and UV–vis diffuse reflectance spectra photoelectrochemical analysis indicated that BNMT-9 can make the specific surface area and photo absorption region larger than BiOI. In addition, the separation efficiency of photogenerated carriers was improved, and the recombination efficiency was reduced. The degradation percentages of Rhodamine B (RhB) and p-chlorophenol (P-CP) reached 99% and 90% over BNMT-9 under visible light irradiation. Additionally, the catalysts had high stability. The results of the active spices trapping experiments test indicated that h+ was the main active species. The possible degradation mechanism was proposed.

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Section: Proposed Mechanism For the Bioi/nh 2 -Mil-125(ti) Compositesupporting

confidence: 89%

The Research on the Construction and the Photocatalytic Performance of BiOI/NH2-MIL-125(Ti) Composite

Zhang

Yang

et al. 2020

Catalysts

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“…In principle, the radius of the arc provides information regarding the nature of the charge transfer process at the electrode/electrolyte interface being studied. In general, an increase in radius indicates an enhancement in charge-transfer resistance [ 36 , 37 , 38 ]. As shown in Figure 6 b, the arc radius of the BiVO 4 catalyst in the dark was larger than that obtained after visible light irradiation, indicating that there were fewer electrons present across the electrolyte interface under the dark condition.…”

Section: Resultsmentioning

confidence: 99%

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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“…Various MOFs were used to hybridize with BiOX. 98,99 In this eld, Jiang et al 100 prepared titanium dicarboxylate MIL-125(Ti) modied BiOI composites (BiOI/MIL-125(Ti)) via hydrothermal method. BiOI was uniformly generated on MIL-125(Ti) surface to form heterostructure, which also increased the specic surface area, promoted the charge transfer, and extended the visible light absorption.…”

Section: Surface Modicationmentioning

confidence: 99%

Recent advances in bismuth oxyhalide photocatalysts for degradation of organic pollutants in wastewater

Jiang²,

Wang

et al. 2021

RSC Adv.

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Enhanced visible-light-induced photocatalytic degradation of tetracycline using BiOI/MIL-125(Ti) composite photocatalyst

Cited by 153 publications

References 68 publications

The Research on the Construction and the Photocatalytic Performance of BiOI/NH2-MIL-125(Ti) Composite

The Research on the Construction and the Photocatalytic Performance of BiOI/NH2-MIL-125(Ti) Composite

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

Recent advances in bismuth oxyhalide photocatalysts for degradation of organic pollutants in wastewater

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