CAS OpenIR
Sandwich structured membrane adsorber with metal organic frameworks for aflatoxin B1 removal
Wu, Qian1; Fan, Jinxin2; Chen, Xiangrong2; Zhu, Zhenzhou1; Luo, Jianquan2; Wan, Yinhua2
2020-09-01
Source PublicationSEPARATION AND PURIFICATION TECHNOLOGY
ISSN1383-5866
Volume246Pages:8
Abstract

Aflatoxins as toxic substances produced by microorganisms widely existed in food crops and detoxification of aflatoxins is highly desired to avoid their leaking into the environment. Herein, a novel combination strategy of metal organic frameworks (MOFs) and porous membrane was used to prepare membrane adsorbent for aflatoxin B1 (AFB1) removal. Firstly, the MOFs particles were readily fixed on a porous membrane by reverse filtration. Subsequently, polydopamine (PDA) coating and further charged polymer grafting were employed for sealing the MOFs particles. By systematically studying four kinds of MOFs particles for AFB1 adsorption, the MIL-100 and the resultant MIL-100 loaded membrane outperformed the other MOFs materials. Through comprehensively evaluating five different sealing approaches, it was found that the charge of the grafted polymers on the membrane was critical for AFB1 adsorption. The PDA/alginate dialdehyde (ADA) modified MIL-100 loaded membrane prepared with PDA coating and ADA grafting for 30 min, could achieve the highest AFB1 removal efficiency of 76.4% and the membrane stability was greatly improved, meanwhile the water permeate flux was barely affected by the additional layers. A good reusability could be realized by a facile desorption process and the AFB1 removal efficiency kept at 61.8% after five reuse cycles. When dealing with real corn juice, the AFB1 removal efficiency in flow-through mode was lower than that obtained in dipping incubation mode, because severer membrane fouling occurred during dynamic adsorption which blocked the adsorption sites on the membrane. The present work not only demonstrated a reliable and effective approach to synthesize robust MOFs-loaded membrane for AFB1 removal, but also offered new insights into micropollutant removal with MOFs derived materials.

KeywordMetal Organic Frameworks Aflatoxin B1 Membrane Adsorber Polydopamine Alginate Dialdehyde Polyethyleneimine
DOI10.1016/j.seppur.2020.116907
Language英语
WOS KeywordMycotoxins ; Metabolism ; Chemistry ; Capacity ; Humans ; Impact
Funding ProjectNational Key Research and Development Plan of China[2017YFC1600906] ; National Youth Talent Support Program in Food Industry of China
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Key Research and Development Plan of China ; National Youth Talent Support Program in Food Industry of China
WOS IDWOS:000533620600013
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/40473
Collection中国科学院过程工程研究所
Corresponding AuthorZhu, Zhenzhou; Luo, Jianquan
Affiliation1.Wuhan Polytech Univ, Coll Food Sci & Engn, Wuhan 430023, Peoples R China
2.Chinese Acad Sci, Univ Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Wu, Qian,Fan, Jinxin,Chen, Xiangrong,et al. Sandwich structured membrane adsorber with metal organic frameworks for aflatoxin B1 removal[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2020,246:8.
APA Wu, Qian,Fan, Jinxin,Chen, Xiangrong,Zhu, Zhenzhou,Luo, Jianquan,&Wan, Yinhua.(2020).Sandwich structured membrane adsorber with metal organic frameworks for aflatoxin B1 removal.SEPARATION AND PURIFICATION TECHNOLOGY,246,8.
MLA Wu, Qian,et al."Sandwich structured membrane adsorber with metal organic frameworks for aflatoxin B1 removal".SEPARATION AND PURIFICATION TECHNOLOGY 246(2020):8.
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