Solvothermal synthesis of copper-doped BiOBr microflowers with enhanced adsorption and visible-light driven photocatalytic degradation of norfloxacin

Lv, Xincong; Yan, Dickson Y.S.; Lam, Frank Leung Yuk; Ng, Yun Hau; Yin, Shou-Wei; An, Alicia Kyoungjin

doi:10.1016/j.cej.2020.126012

Cited by 171 publications

(39 citation statements)

References 74 publications

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“…Generally, the weak PL intensity is suggestive of the rapid migration efficiency of photoinduced electron–hole pairs. 45 It is clear that B-1:3 photocatalyst exhibits the weakest PL intensity, demonstrating suppressed e − –h + pairs recombination and enhancement of separation efficiency, thus resulting in the outstanding photocatalytic activity.…”

Section: Resultsmentioning

confidence: 99%

Structural engineering of BiOBr nanosheets for boosted photodegradation performance toward rhodamine B

Zhao

Wang

et al. 2022

RSC Adv.

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Section: Resultsmentioning

confidence: 99%

Structural engineering of BiOBr nanosheets for boosted photodegradation performance toward rhodamine B

Zhao

Wang

et al. 2022

RSC Adv.

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“…The results showed the photocatalytic degradation extent reaches 96.5% within 150 min when using Ag/FeTiO 3 /Ag/BiFeO 3 at 2.0 wt.% Ag (FeTiO 3 : BiFeO 3 = 1.0:0.5) which can be reused with excellent photocatalytic stability ( Figure 9 b–d). Moreover, Lv et al [ 94 ] synthesized copper-doped bismuth oxybromide (Cu-doped BiOBr) using a solvothermal method, and assessed their ability to degrade norfloxacin under visible light. The as-prepared Cu-doped BiOBr showed high activity with a photocatalytic degradation constant of 0.64 ×10 −2 min −1 in the photocatalytic degradation of norfloxacin under visible-light irradiation due to its enhanced light-harvesting properties, enhanced charge separation, and interfacial charge transfer, as well as a retention of 95% of its initial activity, even after 5 constant catalytic cycles.…”

Section: Recent Advances In Photocatalytic Degradation Of Antibioticsmentioning

confidence: 99%

Photocatalytic Degradation of Some Typical Antibiotics: Recent Advances and Future Outlooks

Bai

Chen

Wang

et al. 2022

IJMS

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The existence of antibiotics in the environment can trigger a number of issues by fostering the widespread development of antimicrobial resistance. Currently, the most popular techniques for removing antibiotic pollutants from water include physical adsorption, flocculation, and chemical oxidation, however, these processes usually leave a significant quantity of chemical reagents and polymer electrolytes in the water, which can lead to difficulty post-treating unmanageable deposits. Furthermore, though cost-effectiveness, efficiency, reaction conditions, and nontoxicity during the degradation of antibiotics are hurdles to overcome, a variety of photocatalysts can be used to degrade pollutant residuals, allowing for a number of potential solutions to these issues. Thus, the urgent need for effective and rapid processes for photocatalytic degradation leads to an increased interest in finding more sustainable catalysts for antibiotic degradation. In this review, we provide an overview of the removal of pharmaceutical antibiotics through photocatalysis, and detail recent progress using different nanostructure-based photocatalysts. We also review the possible sources of antibiotic pollutants released through the ecological chain and the consequences and damages caused by antibiotics in wastewater on the environment and human health. The fundamental dynamic processes of nanomaterials and the degradation mechanisms of antibiotics are then discussed, and recent studies regarding different photocatalytic materials for the degradation of some typical and commonly used antibiotics are comprehensively summarized. Finally, major challenges and future opportunities for the photocatalytic degradation of commonly used antibiotics are highlighted.

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“…Unfortunately, similar to TiO 2 , it suffers from a large band gap (∼3.6 eV) , as well as fast photogenerated electron–hole pairs recombination, hindering its direct application in PEC biosensing. Unique laminar structure endows BiOBr with extraordinary photocatalytic activity. , In addition, it takes on satisfying chemical stability and a suitable band gap (∼2.6 eV). , Most importantly, it has been proved that the SnO 2 /BiOBr heterostructure with the property of stable and low cost demonstrated fascinating performance in photocatalysis. , Inspired by these findings, an exquisite “signal off” PEC biosensor was developed by employing SnO 2 /BiOBr heterostructure as the photoactive matrix for the sensitive detection of target DNA. Besides, the enzyme-assisted signal amplification process versus the high-efficiency signal quencher SiO 2 were coupled in this strategy for improving the sensitivity of this PEC biosensor.…”

Section: Introductionmentioning

confidence: 99%

Photoelectrochemical Assay Based on SnO₂/BiOBr p–n Heterojunction for Ultrasensitive DNA Detection

Long

Yuan

2021

Anal. Chem.

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Herein, a photoelectrochemical (PEC) assay was designed for a highly sensitive DNA determination relying upon the SnO 2 /BiOBr p−n heterojunction as a photoactive material and SiO 2 as a signal quencher. Compared with most traditional heterojunctions, the SnO 2 /BiOBr p−n heterostructure not only lessened the recombination of the photogenerated electron−hole pairs but also promoted the light-harvesting in the ultraviolet−visible (UV−vis) region, leading to further enhanced photoelectric conversion efficiency and photocurrent, which demonstrated 12.1-fold and 6.4-fold increments versus those of pure SnO 2 and BiOBr, respectively. Additionally, the limited quantity of target DNA (a fragment of p53 gene) could be transformed into abundant output DNA−SiO 2 by employing the Nt•BstNBI enzyme-assisted signal amplification procedure, leading to a highly improved detection sensitivity of the biosensor. Then, output DNA−SiO 2 hybridized with the capture DNA anchored on the modified electrode surface, remarkably diminishing the PEC signal and thus achieving sensitive DNA determination. The elaborated PEC biosensor demonstrated outstanding performance within the linear range between 0.5 fM and 5 nM and a low limit of detection down to 0.18 fM, paving a new way for fabricating heterojunction with exceptional photoactive performance and demonstrating the enormous potential for detecting multitudinous biomarkers in bioanalysis and clinical therapy.

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Solvothermal synthesis of copper-doped BiOBr microflowers with enhanced adsorption and visible-light driven photocatalytic degradation of norfloxacin

Cited by 171 publications

References 74 publications

Structural engineering of BiOBr nanosheets for boosted photodegradation performance toward rhodamine B

Structural engineering of BiOBr nanosheets for boosted photodegradation performance toward rhodamine B

Photocatalytic Degradation of Some Typical Antibiotics: Recent Advances and Future Outlooks

Photoelectrochemical Assay Based on SnO₂/BiOBr p–n Heterojunction for Ultrasensitive DNA Detection

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Solvothermal synthesis of copper-doped BiOBr microflowers with enhanced adsorption and visible-light driven photocatalytic degradation of norfloxacin

Cited by 171 publications

References 74 publications

Structural engineering of BiOBr nanosheets for boosted photodegradation performance toward rhodamine B

Structural engineering of BiOBr nanosheets for boosted photodegradation performance toward rhodamine B

Photocatalytic Degradation of Some Typical Antibiotics: Recent Advances and Future Outlooks

Photoelectrochemical Assay Based on SnO2/BiOBr p–n Heterojunction for Ultrasensitive DNA Detection

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Product

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Photoelectrochemical Assay Based on SnO₂/BiOBr p–n Heterojunction for Ultrasensitive DNA Detection