Synthesis of reusable and anti-fouling Co-Al-Ce LDHs coated stainless steel mesh for ultrafast oil/water separation and photocatalytic degradation

Wang, Linxi; Zhang, Yang; Liao, Yutong; Luo, Jianhong

doi:10.1016/j.clay.2022.106769

Cited by 8 publications

(2 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…20 Based on the adjustable semiconductor properties of LDH, Wang and coworkers prepared the bifunctional CoAlCe-LDHs coated stainless steel mesh, which exhibited the ultrafast oil/water separation and photocatalytic degradation of the organic pollutant [degradation rate (RD) of MO: 94.2%]. 21 In order to expand the application of LDH in membrane separation technique, Wu and co-workers fabricated the superhydrophobic composite membrane through the growth of Ni−Al LDH onto cellulose membrane and hydrophobicity modification. 22 Although advanced progress has been made in LDHs-based membranes, current research mainly focuses on superhydrophobic membrane materials and oil fouling easily happens during oil−water separation.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Zhang and co-workers fabricated the superhydrophobic stainless steel mesh by coating Ni–Al LDHs, which exhibited the efficient oil/water separation performance . Based on the adjustable semiconductor properties of LDH, Wang and co-workers prepared the bifunctional CoAlCe-LDHs coated stainless steel mesh, which exhibited the ultrafast oil/water separation and photocatalytic degradation of the organic pollutant [degradation rate (RD) of MO: 94.2%] . In order to expand the application of LDH in membrane separation technique, Wu and co-workers fabricated the superhydrophobic composite membrane through the growth of Ni–Al LDH onto cellulose membrane and hydrophobicity modification .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Photocatalytic PAN Nanofibrous Membrane through Anchoring a Nanoflower-Branched CoAl-LDH@PANI Heterojunction for Organic Hazards Degradation and Oil-Containing Emulsified Wastewater Separation

Zhu,

Zhan,

Chen

et al. 2024

Langmuir

View full text Add to dashboard Cite

The synergistic treatment of oily wastewater containing organic hazards and emulsified oils remains a big challenge for membrane separation technology. Herein, the photocatalytic membrane, which combined the physical barrier and catalytic oxidation-driven degradation functionality, was fabricated via anchoring a nanoflower-branched CoAl-LDH@ PANI Z-scheme heterojunction onto a porous polyacrylonitrile mat and using tannic acid as an adhesive. The assembly of such a Z-scheme heterojunction offered the superior photocatalytic degradation performance of soluble dyes and tetracycline (up to 94.3%) to the membrane with the improved photocatalytic activity of 2.33 times compared with the CoAl-LDH@pPAN membrane. Quenching experiments suggested that the • O 2 − was the most reactive oxygen species in the catalytic reaction system of the composite membrane. The greatly enhanced photocatalytic activity was attributed to the effective inhibition of photogenerated hole− electron combination using PANI as a carrier, with charge transferring from LDH to PANI. The possible photocatalytic degradation mechanism was proposed based on VB-XPS, electron spin resonance spectroscopy, and DRS technologies, which was confirmed by density functional theory calculation. Meanwhile, benefiting from the superhydrophilic/oleophobic feature and low oil adhesion, the membrane exhibited high permeability for isooctane emulsion (3990.39 L•m −2 •h −1 ), high structure stability, and satisfactory cycling performance. This work provided a strategy to develop superwetting and photocatalytic composite membranes for treating complex multicomponent pollutants in the chemical industry.

show abstract

Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%