PMID- 31818670 OWN - NLM STAT- MEDLINE DCOM- 20210108 LR - 20210108 IS - 1873-3336 (Electronic) IS - 0304-3894 (Linking) VI - 387 DP - 2020 Apr 5 TI - Functionalized nanoflower-like hydroxyl magnesium silicate for effective adsorption of aflatoxin B1. PG - 121792 LID - S0304-3894(19)31746-7 [pii] LID - 10.1016/j.jhazmat.2019.121792 [doi] AB - Aflatoxin B1 (AFB1), which is widely found in food and feed, poses a serious threat to the health of human and livestock. In this work, functionalized nanoflower-like hydroxyl magnesium silicate (FNHMS) was synthesized for adsorption of AFB1. First, bulk magnesium silicate (MS) was converted into nanoflower-like hydroxyl magnesium silicate (NHMS) by hydroxylation. Cetyltrimethylammonium bromide (CTMAB) modification then enhanced the hydrophobicity and the affinity to AFB1 of NHMS. The adsorption performance for AFB1 followed the order of MS < NHMS < FNHMS, and the adsorption performance increased with the increase of the dose of CTMAB. Isothermal adsorption analysis indicated that the surface of FNHMS was heterogeneous. The adsorption capacity of FNHMS-0.4 to AFB1 was estimated to be 27.34 mg g(-1) and 28.61 mg g(-1) by Freundlich and Dubinin-Radushkevich isotherm adsorption model, respectively. By analyzing the adsorption kinetics and adsorption thermodynamics, both physical adsorption and chemisorption existed in the process of AFB1 being adsorbed on FNHMS-0.4. Adsorption mechanisms analysis indicated that the adsorption followed the adsorption site priority of H > O > Mg. This work demonstrates that FNHMS could be a promising adsorbent for removal of AFB1. CI - Copyright (c) 2019 Elsevier B.V. All rights reserved. FAU - Sun, Zhiwei AU - Sun Z AD - Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130, People's Republic of China; Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education (Shandong University), Jinan 250061, People's Republic of China. FAU - Huang, Di AU - Huang D AD - Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130, People's Republic of China. FAU - Duan, Xinhui AU - Duan X AD - Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130, People's Republic of China. FAU - Hong, Wei AU - Hong W AD - Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130, People's Republic of China. FAU - Liang, Jinsheng AU - Liang J AD - Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130, People's Republic of China. Electronic address: liangjinsheng@hebut.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20191130 PL - Netherlands TA - J Hazard Mater JT - Journal of hazardous materials JID - 9422688 RN - 0 (Magnesium Silicates) RN - 1343-88-0 (Florisil) RN - 9N2N2Y55MH (Aflatoxin B1) RN - Z7FF1XKL7A (Cetrimonium) SB - IM EIN - J Hazard Mater. 2020 Feb 7;391:122185. PMID: 32044629 MH - Adsorption MH - Aflatoxin B1/chemistry/*isolation & purification MH - Cetrimonium/chemistry MH - Hydroxylation MH - Kinetics MH - Magnesium Silicates/*chemistry MH - Nanostructures/*chemistry MH - Thermodynamics OTO - NOTNLM OT - Adsorption OT - Aflatoxin B1 OT - Cetyltrimethylammonium bromide modification OT - Hydroxylation OT - Magnesium silicate COIS- Declaration of Competing Interest There are no conflicts to declare. EDAT- 2019/12/11 06:00 MHDA- 2021/01/09 06:00 CRDT- 2019/12/11 06:00 PHST- 2019/09/20 00:00 [received] PHST- 2019/11/29 00:00 [revised] PHST- 2019/11/29 00:00 [accepted] PHST- 2019/12/11 06:00 [pubmed] PHST- 2021/01/09 06:00 [medline] PHST- 2019/12/11 06:00 [entrez] AID - S0304-3894(19)31746-7 [pii] AID - 10.1016/j.jhazmat.2019.121792 [doi] PST - ppublish SO - J Hazard Mater. 2020 Apr 5;387:121792. doi: 10.1016/j.jhazmat.2019.121792. Epub 2019 Nov 30.