A polyethersulfone composite ultrafiltration membrane with the in-situ generation of CdS nanoparticles for the effective removal of organic pollutants and photocatalytic self-cleaning

Chen, Lei; Yang, Bo; Zhou, Peng; Xu, Tao; He, Chao; Xu, Yuanting; Zhao, Weifeng; Zhao, Changsheng

doi:10.1016/j.memsci.2021.119715

Cited by 31 publications

(5 citation statements)

References 61 publications

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“…As shown in Figure 6 a, the results of the theoretical calculations showed that C1, C2, C6, C8, N17, O13, O14 and F23 in the NOR structure are more vulnerable to the reactive radicals (ROs) attack. According to previous literature, the oxidized active radicals produced by a photocatalytic degradation system tend to oxidize the biphenyls and side chains of organic pollutants [ 46 ]. Based on the Fukui index combined with intermediate detection results, the degradation pathway of NOR was proposed ( Figure 6 b,c).…”

Section: Resultsmentioning

confidence: 99%

In-Depth Insight into the Ag/CNQDs/g-C3N4 Photocatalytic Degradation of Typical Antibiotics: Influence Factor, Mechanism and Toxicity Evaluation of Intermediates

Sun

et al. 2023

Molecules

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In this paper, the photocatalytic degradation efficiency of typical antibiotics (norfloxacin (NOR), sulfamethoxazole (SMX) and tetracycline hydrochloride (TCH)) by Ag/CNQDs/g-C3N4 under visible light irradiation was studied. Various strategies were applied to characterize the morphology, structure and photochemical properties of the Ag/CNQDs/g-C3N4 composites. The superior photocatalytic activity of Ag/CNQDs/g-C3N4 was attributed to the wide light response range and the enhancement of interfacial charge transfer. At the same time, the effect of the influence factors (pH, Humic acid (HA) and coexisting ions) on the antibiotics degradation were also investigated. Furthermore, the electron spin resonance (ESR) technology, free radical quenching experiments, LC/MS and DFT theoretical calculations were applied to predict and identify the active groups and intermediates during the photocatalytic degradation process. In addition, Ag/CNQDs/g-C3N4 exhibited the obvious antibacterial effect to Escherichia coli due to the addition of Ag NPs. This study develops a new way for the removal of emerging antibiotic pollution from wastewaters.

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Section: Resultsmentioning

confidence: 99%

In-Depth Insight into the Ag/CNQDs/g-C3N4 Photocatalytic Degradation of Typical Antibiotics: Influence Factor, Mechanism and Toxicity Evaluation of Intermediates

Sun

et al. 2023

Molecules

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“…To solve this problem, Zhao's group in situ generated CdS nanoparticles on the surface of a PES membrane by immersing the membrane in Cd 2+ and S 2− precursor solutions, respectively. 39 Instead of directly blending CdS in the PES, this in situ synthetic method facilitated the uniform deposition of nanoparticles on the PES substrate, hence showing better photocatalytic degradation and dye removal performances. Furthermore, 2D materials with a large surface area and small thickness usually served as lamellar filler in the PES composites for ion sieving and filtration.…”

Section: Pes Compositesmentioning

confidence: 99%

“…1b). 35 Except for TiO 2 , other metal oxides such as zinc oxide (ZnO) 36,37 and Zirconium dioxide (ZrO 2 ) 38 or metal sulfides such as cadmium sulfide (CdS) 39 were also employed as fillers for PES based MMMs in a similar way. However, despite the enhancement in antibacterial property, the water flux was usually decreased because of the pore plugging by nanoparticles especially under high mass loading.…”

Section: Pes Compositesmentioning

confidence: 99%

Progress of polyethersulfone composites and their applications in biomedical engineering

Cao

Wang

Zhao

et al. 2023

Mater. Chem. Front.

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“…Chen et al grafted poly(acrylic acid) (PAA) onto the surface of polyethersulfone (PES) membrane, and the PES-PAA membrane was immersed in Cd 2+ and S 2− solutions to induce CdS mineralization on the membrane surface. [60] The Zeta potential of the PAA-modified membrane is lower, which is conducive to the adsorption of positively charged metal ions, thus inducing mineralization evenly. Compared with the direct blending of CdS nanoparticles into the membrane, in situ mineralization overcame the problem of agglomeration and dispersion of nanoparticles, which was conducive to improving the photocatalytic performance of the membrane.…”

Section: Mineralization On Surface Of 2d Materialsmentioning

confidence: 99%

Bioinspired Multiscale Mineralization: From Fundamentals to Potential Applications

Zuo,

Yang,

Zhang

et al. 2023

Macromolecular Bioscience

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The wondrous and imaginative designs of nature have always been an inexhaustible treasure trove for material scientists. Throughout the long evolutionary process, biominerals with hierarchical structures possess some specific advantages such as outstanding mechanical properties, biological functions, and sensing performances, the formation of which (biomineralization) is delicately regulated by organic component. Provoked by the subtle structures and profound principles of nature, bioinspired functional minerals can be designed with the participation of organic molecules. Because of the designable morphology and functions, multiscale mineralization has attracted more and more attention in the areas of medicine, chemistry, biology, and material science. This review provides a summary of current advancements in this extending topic. The mechanisms underlying mineralization is first concisely elucidated. Next, several types of minerals are categorized according to their structural characteristic, as well as the different potential applications of these materials. At last, a comprehensive overview of future developments for bioinspired multiscale mineralization is given. Concentrating on the mechanism of fabrication and broad application prospects of multiscale mineralization, the hope is to provide inspirations for the design of other functional materials.

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A polyethersulfone composite ultrafiltration membrane with the in-situ generation of CdS nanoparticles for the effective removal of organic pollutants and photocatalytic self-cleaning

Cited by 31 publications

References 61 publications

In-Depth Insight into the Ag/CNQDs/g-C3N4 Photocatalytic Degradation of Typical Antibiotics: Influence Factor, Mechanism and Toxicity Evaluation of Intermediates

In-Depth Insight into the Ag/CNQDs/g-C3N4 Photocatalytic Degradation of Typical Antibiotics: Influence Factor, Mechanism and Toxicity Evaluation of Intermediates

Progress of polyethersulfone composites and their applications in biomedical engineering

Bioinspired Multiscale Mineralization: From Fundamentals to Potential Applications

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