Rapid concurrent photocatalysis-persulfate activation for ciprofloxacin degradation by Bi2S3 quantum dots-decorated MIL-53(Fe) composites

Cao, Yixin; Chen, Haoyun; Wang, Hou; Chen, Yi; Chen, Junying; Huang, Haoming; Mou, Yi; Shangguan, Zichen; Li, Xiang

doi:10.1016/j.cej.2022.140971

Cited by 35 publications

(8 citation statements)

References 88 publications

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“…To confirm whether the PS/0.05BNO-BOBI system contained ·SO 4 – , TBA and MeOH were used as trapping agents (Figure b). TBA captured ·OH ( n ps : n TBA = 1:4), and MeOH captured ·OH and ·SO 4 – ( n ps : n MeOH = 1:4). , Figure b clearly shows that the inhibitory effect of TBA as a trapping agent on RhB is less than that of MeOH, thus indicating the presence of ·SO 4 – in the system. The reusability and stability of 0.05 BNO-BOBI were characterized by four-times cyclic experiments, XRD, and XPS (Figure S5).…”

Section: Resultsmentioning

confidence: 92%

Persulfate Activation of Photocatalysts Based on S-Scheme Bi₃NbO₇/BiOBr_0.75I_0.25 Nanosheet Heterojunctions for Degradation of Organic Pollutants

Wang

et al. 2023

ACS Appl. Nano Mater.

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Photocatalytic activation of persulfate has been receiving much attention in the field of wastewater treatment. In this work, the Bi 3 NbO 7 /BiOBr 0.75 I 0.25 nanosheet S-scheme heterojunctions were synthesized by the solvothermal method to activate persulfate. The degradation rates of rhodamine B (RhB) and TC by 0.05Bi 3 NbO 7 / BiOBr 0.75 I 0.25 were 95.4 and 74.7% in 2 h, respectively, indicating that 0.05Bi 3 NbO 7 /BiOBr 0.75 I 0.25 nanosheet heterojunctions have good photocatalytic activity. The synergistic effect between persulfate and the 0.05Bi 3 NbO 7 /BiOBr 0.75 I 0.25 photocatalyst was investigated under different persulfate contents, pH values, and light conditions. The RhB degradation rate of 0.05Bi 3 NbO 7 /BiOBr 0.75 I 0.25 activation persulfate is more than twice that of 0.05Bi 3 NbO 7 /BiOBr 0.75 I 0.25 , and the range of pH adaptation is wide. Radical quenching experiments showed that h + , • O 2 − , and •OH were the important active groups. Persulfate and catalysts produce a synergistic effect, which is S 2 O 8 2− reacting with e − to form •SO 4 − in the photocatalytic process. Meanwhile, the formation of •SO 4 − accelerates the process of photocatalytic reaction. This work provides ideas for the design of efficient and pollution-free photocatalysts for the activation of persulfate.

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Section: Resultsmentioning

confidence: 92%

Persulfate Activation of Photocatalysts Based on S-Scheme Bi₃NbO₇/BiOBr_0.75I_0.25 Nanosheet Heterojunctions for Degradation of Organic Pollutants

Wang

et al. 2023

ACS Appl. Nano Mater.

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“…The BE of O 1s in Bi 2 S 3 /MoS 2 -2 shifted to a higher binding energy than both the pristine MoS 2 and Bi 2 S 3 , confirming charge transfer between the composite material and surface chemisorbed oxygen. Furthermore, the shifting of the peaks to lower or higher binding energies indicates that electron transfer from Bi 2 S 3 to MoS 2 occurred in the composite due to the close contact of the composites . (Tables S3 and S4).…”

Section: Resultsmentioning

confidence: 99%

“…Furthermore, the shifting of the peaks to lower or higher binding energies indicates that electron transfer from Bi 2 S 3 to MoS 2 occurred in the composite due to the close contact of the composites. 34 (Tables S3 and S4).…”

Section: Structural and Morphological Characterizationmentioning

confidence: 99%

Controllable Epitaxial-like Growth of Bi₂S₃/MoS₂ Hybrid Aerogel Nanostructures for Sensitive NO₂ Detection at Room Temperature

Liu

Gao

2023

ACS Appl. Nano Mater.

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Constructing heterogeneous interfaces on a nanoscale that can prominently improve the gas-sensing properties has been comprehensively reported. However, the effect of parallel heterostructures formed by unique synthetic means on nitrogen dioxide room-temperature sensing properties still needs to be clarified, which hinders the development of heterostructured hybrid materials in the field of gas sensing. In this study, large-sized MoS2 was parallel-wrapped on the surface of nanoscale Bi2S3 rods, and then, the Bi2S3/MoS2 nanocomposite aerogels were formed by freeze drying and calcination. The NO2 sensing performance of the hybrids and possible surface processes at room temperature have been investigated and deduced. The as-prepared nanocomposite aerogels (Bi2S3/MoS2-2) exhibited a larger specific surface area, a mass of active defect sites, and a higher charge density, thus possessing 15- and 20-times higher response than that of pristine MoS2 nanosheets and Bi2S3 nanorods, respectively. This study provides an efficient way to synthesize large-area parallel heterostructures between two bis-sulfides (Bi2S3 and MoS2), leading to excellent NO2 gas sensing performance.

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“…The effects of micropollutants (MPs) such as antibiotics on human health have attracted widespread attention. − Ferrate (Fe(VI)) is widely investigated in MP oxidation because it gives the nontoxic decomposition product Fe(III), can be used over a wide pH range, and has a strong oxidation capacity. − Additionally, because of the selective oxidation of electron-rich MPs, ferrate is less affected by coexisting substances in water compared to sulfate-based advanced oxidation processes. − However, Fe(VI) has an extremely fast hydrolysis rate in water, which leads to self-quenching of high-valent iron intermediates like Fe(IV) and Fe(V), and this affects its application to MP oxidation. , Therefore, improving the contribution of reactive species to the oxidation of MPs by avoiding self-quenching is of importance for decreasing the amount of required ferrate and promoting the oxidation efficiency of MPs. ,, …”

Section: Introductionmentioning

confidence: 99%

How Should We Activate Ferrate(VI)? Fe(IV) and Fe(V) Tell Different Stories about Fluoroquinolone Transformation and Toxicity Changes

Wang,

Du,

Liu

et al. 2024

Environ. Sci. Technol.

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Many studies have investigated activation of ferrate (Fe(VI)) to produce reactive high-valent iron intermediates to enhance the oxidation of micropollutants. However, the differences in the risk of pollutant transformation caused by Fe(IV) and Fe(V) have not been taken seriously. In this study, Fe(VI)-alone, Fe3+/Fe(VI), and NaHCO3/Fe(VI) processes were used to oxidize fluoroquinolone antibiotics to explore the different effects of Fe(IV) and Fe(V) on product accumulation and toxicity changes. The contribution of Fe(IV) to levofloxacin degradation was 99.9% in the Fe3+/Fe(VI) process, and that of Fe(V) was 89.4% in the NaHCO3/Fe(VI) process. The cytotoxicity equivalents of levofloxacin decreased by 1.9 mg phenol/L in the Fe(IV)-dominant process while they significantly (p < 0.05) increased by 4.7 mg phenol/L in the Fe(V)-dominant process. The acute toxicity toward luminescent bacteria and the results for other fluoroquinolone antibiotics also showed that Fe(IV) reduced the toxicity and Fe(V) increased the toxicity. Density functional theory calculations showed that Fe(V) induced quinolone ring opening, which would increase the toxicity. Fe(IV) tended to oxidize the piperazine group, which reduced the toxicity. These results show the different-pollutant transformation caused by Fe(IV) and Fe(V). In future, the different risk outcomes during Fe(VI) activation should be taken seriously.

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Rapid concurrent photocatalysis-persulfate activation for ciprofloxacin degradation by Bi2S3 quantum dots-decorated MIL-53(Fe) composites

Cited by 35 publications

References 88 publications

Persulfate Activation of Photocatalysts Based on S-Scheme Bi₃NbO₇/BiOBr_0.75I_0.25 Nanosheet Heterojunctions for Degradation of Organic Pollutants

Persulfate Activation of Photocatalysts Based on S-Scheme Bi₃NbO₇/BiOBr_0.75I_0.25 Nanosheet Heterojunctions for Degradation of Organic Pollutants

Controllable Epitaxial-like Growth of Bi₂S₃/MoS₂ Hybrid Aerogel Nanostructures for Sensitive NO₂ Detection at Room Temperature

How Should We Activate Ferrate(VI)? Fe(IV) and Fe(V) Tell Different Stories about Fluoroquinolone Transformation and Toxicity Changes

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Rapid concurrent photocatalysis-persulfate activation for ciprofloxacin degradation by Bi2S3 quantum dots-decorated MIL-53(Fe) composites

Cited by 35 publications

References 88 publications

Persulfate Activation of Photocatalysts Based on S-Scheme Bi3NbO7/BiOBr0.75I0.25 Nanosheet Heterojunctions for Degradation of Organic Pollutants

Persulfate Activation of Photocatalysts Based on S-Scheme Bi3NbO7/BiOBr0.75I0.25 Nanosheet Heterojunctions for Degradation of Organic Pollutants

Controllable Epitaxial-like Growth of Bi2S3/MoS2 Hybrid Aerogel Nanostructures for Sensitive NO2 Detection at Room Temperature

How Should We Activate Ferrate(VI)? Fe(IV) and Fe(V) Tell Different Stories about Fluoroquinolone Transformation and Toxicity Changes

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Persulfate Activation of Photocatalysts Based on S-Scheme Bi₃NbO₇/BiOBr_0.75I_0.25 Nanosheet Heterojunctions for Degradation of Organic Pollutants

Persulfate Activation of Photocatalysts Based on S-Scheme Bi₃NbO₇/BiOBr_0.75I_0.25 Nanosheet Heterojunctions for Degradation of Organic Pollutants

Controllable Epitaxial-like Growth of Bi₂S₃/MoS₂ Hybrid Aerogel Nanostructures for Sensitive NO₂ Detection at Room Temperature