Sandwich structured membrane adsorber with metal organic frameworks for aflatoxin B1 removal | |
Wu, Qian1; Fan, Jinxin2; Chen, Xiangrong2; Zhu, Zhenzhou1; Luo, Jianquan2; Wan, Yinhua2 | |
刊名 | SEPARATION AND PURIFICATION TECHNOLOGY |
2020-09-01 | |
卷号 | 246页码:8 |
关键词 | Metal Organic Frameworks Aflatoxin B1 Membrane Adsorber Polydopamine Alginate Dialdehyde Polyethyleneimine |
ISSN号 | 1383-5866 |
DOI | 10.1016/j.seppur.2020.116907 |
英文摘要 | 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. |
资助项目 | National Key Research and Development Plan of China[2017YFC1600906] ; National Youth Talent Support Program in Food Industry of China |
WOS关键词 | Mycotoxins ; Metabolism ; Chemistry ; Capacity ; Humans ; Impact |
WOS研究方向 | Engineering |
语种 | 英语 |
出版者 | ELSEVIER |
WOS记录号 | WOS:000533620600013 |
资助机构 | National Key Research and Development Plan of China ; National Youth Talent Support Program in Food Industry of China |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/40472] |
专题 | 中国科学院过程工程研究所 |
通讯作者 | Zhu, Zhenzhou; Luo, Jianquan |
作者单位 | 1.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 |
推荐引用方式 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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