NIMTE OpenIR  > 2018专题
Catalytic PVDF membrane for continuous reduction and separation of p-nitrophenol and methylene blue in emulsified oil solution
Wang, Jianqiang; Wu, Ziyang; Li, Tiantian; Ye, Jianrong; Shen, Liqiang; She, Zhen; Liu, Fu
2018
Source PublicationCHEMICAL ENGINEERING JOURNAL
Volume334Pages:579-586
AbstractRemoval of aromatic contaminants from water has been a challenge in the field of environmental remediation. In order to remove these contaminants efficiently, we developed a catalytic finger reactor based on PVDF membrane for continuous reduction of p-nitrophenol (4-NP) and methylene blue (MB) in chloroform-in-water emulsion by integration of physical sieving and chemical reaction. The catalytic finger reactor was elaborately constructed via the assembly of Au nanoparticles (AuNPs) inside the finger-like pores in PVDF membrane through a dynamic flow strategy by taking advantage of the pre-coated polydopamine layer. The wettability, morphological and distribution of AuNPs in the finger-like pores were revealed by contact angle, SEM and EDX. The prepared catalytic finger reactor reduced> 99% of 4-NP (2.72x10(-4) M) and MB (5.35x10(-4) M) at a flow rate of 0.015 mL/cm(2)s, corresponding to a residence time of 1.12 s and a linear velocity of 0.021 cm/s. Moreover, the catalytic PVDF membrane showed great reduction of 4-NP and high rejection to chloroform-in-water emulsion simultaneously in the continuous filtration process. Overall, the catalytic finger reactor realized the spontaneous and continuous reduction of 4-NP and MB in a flowing mode and as well as the emulsion separation.
KeywordUltrafiltration Membrane Oil/water Separation Composite Membranes Degradation Polydopamine Nanoparticle Reverse Peroxymonosulfate 4-nitrophenol Performance
Subject AreaEngineering ; Polymer Science
Language英语
Document Type期刊论文
Identifierhttp://ir.nimte.ac.cn/handle/174433/16810
Collection2018专题
Recommended Citation
GB/T 7714
Wang, Jianqiang,Wu, Ziyang,Li, Tiantian,et al. Catalytic PVDF membrane for continuous reduction and separation of p-nitrophenol and methylene blue in emulsified oil solution[J]. CHEMICAL ENGINEERING JOURNAL,2018,334:579-586.
APA Wang, Jianqiang.,Wu, Ziyang.,Li, Tiantian.,Ye, Jianrong.,Shen, Liqiang.,...&Liu, Fu.(2018).Catalytic PVDF membrane for continuous reduction and separation of p-nitrophenol and methylene blue in emulsified oil solution.CHEMICAL ENGINEERING JOURNAL,334,579-586.
MLA Wang, Jianqiang,et al."Catalytic PVDF membrane for continuous reduction and separation of p-nitrophenol and methylene blue in emulsified oil solution".CHEMICAL ENGINEERING JOURNAL 334(2018):579-586.
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