Recent advances in photodegradation of antibiotic residues in water

Yang, Xiuru; Chen, Zhi; Zhao, Wan; Liu, Chunxi; Qian, Xiaoxiao; Zhang, Ming; Wei, Guoying; Khan, Eakalak; Ng, Yun Hau; Ok, Yong Sik

doi:10.1016/j.cej.2020.126806

Cited by 269 publications

(98 citation statements)

References 319 publications

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“…An appropriate heterojunction interface can effectively inhibit the recombination of photoinduced e − and h + during photocatalysis, thereby enhancing the overall photo-activity of catalysts (Li and Li 2020 ). Heterojunction typically could be grouped into six categories based on the heterojunction structure: traditional (e.g., type I, type II, and type III), p–n, Z-scheme, step-scheme, Schottky, and surface heterojunctions (He et al 2020b ; Yang et al 2021c ). Various heterojunction architectures generally show diverse photocatalysis procedures and mechanisms for the separation of photoexcited carriers.…”

Section: Mechanisms Of Semiconductor Heterojunction Photocatalysis and The Separation Of Electron–hole Pairsmentioning

confidence: 99%

Heterojunction photocatalysts for degradation of the tetracycline antibiotic: a review

2021

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Antibiotic pollution is a major health issue inducing antibiotic resistance and the inefficiency of actual drugs, thus calling for improved methods to clean water and wastewater. Here we review the recent development of heterojunction photocatalysis and application in degrading tetracycline. We discuss mechanisms for separating photogenerated electron–hole pairs in different heterojunction systems such as traditional, p–n, direct Z-scheme, step-scheme, Schottky, and surface heterojunction. Degradation pathways of tetracycline during photocatalysis are presented. We compare the efficiency of tetracycline removal by various heterojunctions using quantum efficiency, space time yield, and figures of merit. Implications for the treatment of antibiotic-contaminated wastewater are discussed.

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Section: Mechanisms Of Semiconductor Heterojunction Photocatalysis and The Separation Of Electron–hole Pairsmentioning

confidence: 99%

Heterojunction photocatalysts for degradation of the tetracycline antibiotic: a review

2021

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“…The evaluation of photodegradation processes can provide information about the persistence of antibiotics in the environment when they receive sunlight, but also about their possible removal during wastewater treatment [ 14 , 15 ]. It is relevant that the photodegradation process can be affected by physicochemical conditions, such as pH, and by the presence of soluble organic matter.…”

Section: Introductionmentioning

confidence: 99%

Photodegradation of Ciprofloxacin, Clarithromycin and Trimethoprim: Influence of pH and Humic Acids

et al. 2021

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In view of the rising relevance of emerging pollutants in the environment, this work studies the photodegradation of three antibiotics, evaluating the effects of the pH of the medium and the concentration of dissolved organic matter. Simulated light (with a spectrum similar to that of natural sunlight) was applied to the antibiotics Ciprofloxacin (Cip), Clarithromycin (Cla) and Trimethoprim (Tri), at three different pH, and in the presence of different concentrations of humic acids. The sensitivity to light followed the sequence: Cip > Cla > Tri, which was inverse for the half-life (Tri > Cla > Cip). As the pH increased, the half-life generally decreased, except for Cla. Regarding the kinetic constant k, in the case of Cip and Tri it increased with the rise of pH, while decreased for Cla. The results corresponding to total organic carbon (TOC) indicate that the complete mineralization of the antibiotics was not achieved. The effect of humic acids was not marked, slightly increasing the degradation of Cip, and slightly decreasing it for Tri, while no effect was detected for Cla. These results may be relevant in terms of understanding the evolution of these antibiotics, especially when they reach different environmental compartments and receive sunlight radiation.

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“…Antibiotics play an extremely important role in the livestock industry by improving the growth performance and efficiency of feed utilization, preventing disease, and reducing mortality and morbidity rates [ 1 , 2 , 3 ]. However, antibiotics used in feed might cause undesirable consequences to human health, pose a threat to food safety, and constitute an environmental problem [ 1 , 4 ]. To address this, National State Health Departments around the world have banned the use of antibiotics as growth promoters in animal diets [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of Rhamnolipids on Growth Performance, Immune Function, and Cecal Microflora in Linnan Yellow Broilers Challenged with Lipopolysaccharides

Zhang

et al. 2021

Antibiotics

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This present study aimed to investigate the effects of rhamnolipids (RLS) on the growth performance, intestinal morphology, immune function, short-chain fatty acid content, and microflora community in broiler chickens challenged with lipopolysaccharides (LPS). A total of 450 broiler chickens were randomly allocated into three groups: basal diet with no supplement (NCO), basal diet with bacitracin (ANT), and basal diet with rhamnolipids (RLS). After 56 d of feeding, 20 healthy broilers were selected from each group, with half being intraperitoneally injected with lipopolysaccharides (LPS) and the other half with normal saline. Treatments with LPS were labelled LPS-NCO, LPS-ANT, and LPS-RLS, whereas treatments with normal saline were labelled NS-NCO, NS-ANT, and NS-RLS. LPS-challenged birds had lower jejunal villus height and higher crypt depth than unchallenged birds. LPS-RLS broilers had increased jejunal villus height and villus height/crypt depth ratio (V/C) but lower crypt depth than LPS-NCO. Dietary supplementation with RLS reduced the LPS-induced immunological stress. Compared with LPS-NCO, birds in LPS-RLS had lower concentrations of IL-1β, IL-6, and TNF-α. In LPS-challenged broilers, RLS and ANT increased the concentrations of IgA, IgM, and IgY compared with LPS-NCO. In LPS treatments, RLS enhanced the contents of acetic acid, butyrate, isobutyric acid, isovalerate, and valerate more than LPS-NCO birds. High-throughput sequencing indicated that RLS supplementation led to changes in the cecal microbial community of broilers. At the species level, Clostridium-sp-Marseille-p3244 and Slakia_eqcsolifaciens were more abundant in NS-RLS than in NS-NCO broilers. In summary, RLS improved the growth performance and relative abundance of cecal microbiota and reduced the LPS-induced immunological stress in broiler chickens.

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Recent advances in photodegradation of antibiotic residues in water

Abstract: Graphical abstract

Cited by 269 publications

References 319 publications

Heterojunction photocatalysts for degradation of the tetracycline antibiotic: a review

Heterojunction photocatalysts for degradation of the tetracycline antibiotic: a review

Photodegradation of Ciprofloxacin, Clarithromycin and Trimethoprim: Influence of pH and Humic Acids

Effects of Rhamnolipids on Growth Performance, Immune Function, and Cecal Microflora in Linnan Yellow Broilers Challenged with Lipopolysaccharides

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