Changing conventional blending photocatalytic membranes (BPMs): Focus on improving photocatalytic performance of Fe3O4/g-C3N4/PVDF membranes through magnetically induced freezing casting method

Li, Binrong; Meng, Minjia; Cui, Yanhua; Wu, Yilin; Zhang, Yunlei; Dong, Hongjun; Zhu, Zhi; Feng, Yonghai; Wu, Chunxia

doi:10.1016/j.cej.2019.02.042

Cited by 174 publications

(37 citation statements)

References 55 publications

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“…Sun et al [114] induced the copolymerization of sulfonamide amphiphilic groups with acrylonitrile materials and modified the propylene amine groups to inhibit the protein adsorption properties and modified the polypropylene-sulfonamide copolymer membrane materials with excellent properties. The PVDF was modified with 10% NaOH to improve the hydrophilicity of the ultrafiltration membrane, and the hydrophilicity of the composite membrane obtained by grafting polyoxyethylene methacrylate (POEM) with 5 wt % to PVDF was also greatly improved [115].…”

Section: Chemical Copolymerizationmentioning

confidence: 99%

A Review on the Mechanism, Impacts and Control Methods of Membrane Fouling in MBR System

et al. 2020

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Compared with the traditional activated sludge process, a membrane bioreactor (MBR) has many advantages, such as good effluent quality, small floor space, low residual sludge yield and easy automatic control. It has a promising prospect in wastewater treatment and reuse. However, membrane fouling is the biggest obstacle to the wide application of MBR. This paper aims at summarizing the new research progress of membrane fouling mechanism, control, prediction and detection in the MBR systems. Classification, mechanism, influencing factors and control of membrane fouling, membrane life prediction and online monitoring of membrane fouling are discussed. The research trends of relevant research areas in MBR membrane fouling are prospected.

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Section: Chemical Copolymerizationmentioning

confidence: 99%

A Review on the Mechanism, Impacts and Control Methods of Membrane Fouling in MBR System

et al. 2020

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“…Besides coating with nanosized photocatalysts, self-cleaning conventional MMM and TFN were reported to also employ LDH and BP in contrast to the more frequently reported gCN(H) [ 220 , 221 , 222 , 223 ]. The laminar structure of the bulk material of phosphorene is that of black phosphorus, which was immersed in SPEEK membranes.…”

Section: Nanosheet Induced Fouling Mitigationmentioning

confidence: 99%

2D Nanocomposite Membranes: Water Purification and Fouling Mitigation

et al. 2020

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In this study, the characteristics of different types of nanosheet membranes were reviewed in order to determine which possessed the optimum propensity for antifouling during water purification. Despite the tremendous amount of attention that nanosheets have received in recent years, their use to render membranes that are resistant to fouling has seldom been investigated. This work is the first to summarize the abilities of nanosheet membranes to alleviate the effect of organic and inorganic foulants during water treatment. In contrast to other publications, single nanosheets, or in combination with other nanomaterials, were considered to be nanostructures. Herein, a broad range of materials beyond graphene-based nanomaterials is discussed. The types of nanohybrid membranes considered in the present work include conventional mixed matrix membranes, stacked membranes, and thin-film nanocomposite membranes. These membranes combine the benefits of both inorganic and organic materials, and their respective drawbacks are addressed herein. The antifouling strategies of nanohybrid membranes were divided into passive and active categories. Nanosheets were employed in order to induce fouling resistance via increased hydrophilicity and photocatalysis. The antifouling properties that are displayed by two-dimensional (2D) nanocomposite membranes also are examined.

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“…A promising photocatalyst [42], the iron-based photocatalyst, has been widely used in the degradation of organic dyes due to its wide light absorption range, low cost, adjustable bandgap, high stability, and recyclability [43]. Iron-based photocatalysts can be categorized into three types, including iron oxide-compounding [44][45][46], iron ion-doping [47,48] and iron oxide-modifying [43,49,50]. Xiaohui Feng et al reported a novel kind of Fe 3 O 4 -ZnO hybrid nanoparticle, which exhibits an outstanding phenol degradation of 82.3% in comparison with ZnO (52%) [51].…”

Section: Introductionmentioning

confidence: 99%

Carbene Ligand-Doped Fe2O3 Composite for Rapid Removal of Multiple Dyes under Sunlight

et al. 2021

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Contaminated water due to industrial organic dyes presents a significant challenge to sustainability. As a material of green energy, photocatalysts offer an effective and environmentally friendly way to deal with organic dyes for water treatment. A series of simple and highly efficient iron photocatalysts with carbene ligands were developed, which, under the illumination of sunlight, can rapidly degrade multiple organic dyes in water at room temperature, including rhodamine B (RhB), indigo carmine (IC), methyl blue (MB), and congo red (CR). The field-only surface integral method was carried out to determine the absorption spectrum of photocatalyst particles. Under the optimized experimental conditions which were selected by the orthogonal experiments for four dyes, 0.5a@Fe2O3 and 2c@Fe2O3 demonstrated good stability and photocatalytic activity. These two composite materials not only have the ability to remove 98.0% of the degradation in 10 s, but also maintain high reactivity after a few cycles of repeated use.

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Changing conventional blending photocatalytic membranes (BPMs): Focus on improving photocatalytic performance of Fe3O4/g-C3N4/PVDF membranes through magnetically induced freezing casting method

Cited by 174 publications

References 55 publications

A Review on the Mechanism, Impacts and Control Methods of Membrane Fouling in MBR System

A Review on the Mechanism, Impacts and Control Methods of Membrane Fouling in MBR System

2D Nanocomposite Membranes: Water Purification and Fouling Mitigation

Carbene Ligand-Doped Fe2O3 Composite for Rapid Removal of Multiple Dyes under Sunlight

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