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Preparation and performance of nanosheet decorated copper membranes for phenol degradation via electro-Fenton process

Authors： Shi Yongxuan, Yu Hongtao, Dong Yingchao

Units： Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, 116000

KeyWords： Membrane separation; Metallic membrane; Electro-enhanced membrane process；Contaminants

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2022,42(1):10-17

Abstract：

Porous copper metallic hollow fiber membrane was prepared via dry-wetting spinning and atmosphere-sintering technique and followed by anodic oxidation for the construction of nanosheet copper oxide. Then the degradation performance for phenol was studied via electro-Fenton process. The effects of spinning parameters (ethanol content in external coagulation bath and nitrogen pressure) and sintering temperature on the structure, pore size and mechanical strength were investigated for copper hollow fiber membranes. The effects of oxidation time, current density and surfactant concentration on the morphology of nanosheet copper oxide was then investigated. The results showed that the optimized copper hollow fiber membranes were obtained with good permeability, which was higher than other ceramic membranes. Dense and regular nanosheets were produced at anodic oxidation time of 60 s, the current density of 15 A·cm-2 and 0.5 g·L-1 PEG. Compared to unmodified copper membranes, the mineralization efficiency increased from 5% to 60%,while the current efficiency increased from 3% to 8.6% after the construction of copper oxide nanosheets.

Funds：

国家重点研发专项(No. 2019YFA0705803)、兴辽英才项目(No. XLYC1807250)、国家自然科学基金(No. 21876020和No. 52070033)和企业横向课题(No.HX20190810)

AuthorIntro：

史咏玄（1996-03），男，辽宁，丹东，硕士，研究方向电增强膜分离

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