Ultra-low power light driven lycopodium-like nanofiber membrane reinforced by PET braid tube with robust pollutants removal and regeneration capacity based on photo-Fenton catalysis

Piao, Hongwei; Zhao, Jianqing; Liu, Mingyi; Zhang, Shujie; Huang, Qinglin; Liu, Yong; Xiao, Changfa

doi:10.1016/j.cej.2022.138204

Cited by 41 publications

(7 citation statements)

References 66 publications

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“…S18). Generally, permeation ability of membranes is always closely linked to surface characteristics (i.e., chemical properties, charge density and wettability), pore structures and porosity 22,23 . Although the magnetic particles may block some pores, after hydrophilic Fe 3 S 4 attaching, a robust hydration layer can be rapidly integrated by water molecules.…”

Section: Resultsmentioning

confidence: 99%

A new strategy in developing antifouling membranes: pulling out carrots and mud coming with

Zhao,

Piao,

Zhuang

et al. 2023

Preprint

Self Cite

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Membrane filtration is a promising solution to solve the fresh water scarcity issue and wastewater remediation; however, the fouling problem cannot be avoided. Antifouling and effective cleaning are the key methods to recover the membrane performance and achieve the stable filtration; whereas it is a great challenge to realize the harmless defouling or to reduce frequent replacement of membrane units. In this work, a breakthrough concept of “fouling-detachable” composite membrane consisting of tubular magnetic membrane body (polyvinylidene fluoride nanofiber membrane reinforced by magnetic polyester braided tube, MTNM) encapsulated by the magnetic photocatalyst (Fe3S4) layer was proposed. As expected, the detachable Fe3S4 layer can efficiently inhibit the severe deposition of foulants via the fantastic magnetic detachable feature. The porous magnetic Fe3S4 is a multifunctional catalyst, which can also be used for photocatalysis or peroxymonosulfate (PMS) activation to induce rich reactive oxygen species (ROS) for various organic pollutant degradation. Our study provides a new universal strategy for membrane design by coupling magnetic properties and catalysis with microfiltration to achieve ultrahigh antifouling property and maintain water flux.

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Section: Resultsmentioning

confidence: 99%

A new strategy in developing antifouling membranes: pulling out carrots and mud coming with

Zhao,

Piao,

Zhuang

et al. 2023

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…With the popularity of the concept of green production, researchers have developed many visible light-driven self-cleaning membranes. [246][247][248][249] For example, the addition of palygorskite increased the interlayer spacing between graphene and heterostructures with visible light catalytic properties, effectively avoiding membrane fouling and a sharp decline in permeation flux. [250] Ultrathin g-C 3 N 4 nanofibrous were in situ synthesized on the nanofiber membrane to form a uniform and dense core-shell quantum heterostructure, which can induce effective charge transfer and exhibit 90.8% photodegradation efficiency of tetracycline hydrochloride under visible light within 60 min.…”

Section: Reusabilitymentioning

confidence: 99%

Recent Advances in Stimuli‐Responsive Smart Membranes for Nanofiltration

Xiao

Shokoohi

et al. 2022

Adv Funct Materials

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Nanofiltration membrane plays an increasingly important role in many industrial applications, such as water treatment and resource recovery. The performance of the smart nanofiltration membrane is largely controlled by pore size, the Donnan effect, and surface wettability, which are determined by the function of stimuli‐responsive components. Smart membranes, which contain stimuli‐responsive components, are capable of changing their physical and chemical properties in response to changes in the environment so that the microstructure of the membrane will have more efficient performances and broader application prospects than the current traditional nanofiltration membranes. Herein, the preparation methods of stimuli‐responsive membranes are described and they are systematically classified accordingly to their mechanisms. Moreover, the latest progress of stimuli‐responsive membranes in nanofiltration and the main mechanism of each stimuli‐response type through relevant examples are discussed and summarized. Finally, this review provides new insights into the remaining challenges and future directions of stimuli‐responsive membranes. Fueled by advances in chemistry and materials science, it is expected to build a smart and efficient nanofiltration membrane platform for the benefit of mankind.

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“…During this process, electron–hole pairs (e − –h + ) are generated on the surface of nanosilver. e − and h+ are involved in the surface catalytic reactions through electron transfer with oxygen in water as well as water to generate superoxide anion radicals (·O 2 − ) and hydroxyl radicals (·OH), respectively, which can significantly enhance visible light absorption [ 10 , 11 ], thus achieving the purpose of organic treatment [ 12 , 13 , 14 ]. The synthesis of nanosilver mainly includes physical, chemical, and biological methods.…”

Section: Introductionmentioning

confidence: 99%

Preparation of CS-LS/AgNPs Composites and Photocatalytic Degradation of Dyes

Wu,

Chen,

et al. 2024

Materials

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Synthetic dyes are prone to water pollution during use, jeopardizing biodiversity and human health. This study aimed to investigate the adsorption and photocatalytic assist potential of sodium lignosulfonate (LS) in in situ reduced silver nanoparticles (AgNPs) and chitosan (CS)-loaded silver nanoparticles (CS-LS/AgNPs) as adsorbents for Rhodamine B (RhB). The AgNPs were synthesized by doping LS on the surface of chitosan for modification. Fourier transform infrared (FT-IR) spectrometry, energy-dispersive spectroscopy (EDS), scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) were used to confirm the synthesis of nanomaterials. The adsorption and photocatalytic removal experiments of RhB were carried out under optimal conditions (initial dye concentration of 20 mg/L, adsorbent dosage of 0.02 g, time of 60 min, and UV power of 250 W), and the kinetics of dye degradation was also investigated, which showed that the removal rate of RhB by AgNPs photocatalysis can reach 55%. The results indicated that LS was highly effective as a reducing agent for the large-scale production of metal nanoparticles and can be used for dye decolorization. This work provides a new catalyst for the effective removal of dye from wastewater, and can achieve high-value applications of chitosan and lignin.

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Ultra-low power light driven lycopodium-like nanofiber membrane reinforced by PET braid tube with robust pollutants removal and regeneration capacity based on photo-Fenton catalysis

Cited by 41 publications

References 66 publications

A new strategy in developing antifouling membranes: pulling out carrots and mud coming with

A new strategy in developing antifouling membranes: pulling out carrots and mud coming with

Recent Advances in Stimuli‐Responsive Smart Membranes for Nanofiltration

Preparation of CS-LS/AgNPs Composites and Photocatalytic Degradation of Dyes

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