文献类型：期刊文献

英文题名：Preparation of metal-organic frameworks hybridizing with attapulgite and adsorption behaviors for glutathione reduced

作者：Liu, Yi[1,2,3];Liu, Yongfeng[1,2,3];Wang, Hao[1,2];Dong, Ling[4];Di, Duolong[1,2,3]

第一作者：Liu, Yi

通信作者：Di, DL[1];Di, DL[2]

机构：[1]Chinese Acad Sci, Lanzhou Inst Chem Phys, CAS Key Lab Chem Northwestern Plant Resources, Lanzhou 730000, Gansu, Peoples R China;[2]Chinese Acad Sci, Lanzhou Inst Chem Phys, Key Lab Nat Med Gansu Prov, Lanzhou 730000, Gansu, Peoples R China;[3]Chinese Acad Sci, Ctr Resource Chem & New Mat, Lanzhou Inst Chem Phys, Qingdao 266100, Peoples R China;[4]Gansu Univ Chinese Med, Lanzhou 730000, Gansu, Peoples R China

第一机构：Chinese Acad Sci, Lanzhou Inst Chem Phys, CAS Key Lab Chem Northwestern Plant Resources, Lanzhou 730000, Gansu, Peoples R China

通信机构：[1]corresponding author), Chinese Acad Sci, Lanzhou Inst Chem Phys, CAS Key Lab Chem Northwestern Plant Resources, Lanzhou 730000, Gansu, Peoples R China;[2]corresponding author), Chinese Acad Sci, Lanzhou Inst Chem Phys, Key Lab Nat Med Gansu Prov, Lanzhou 730000, Gansu, Peoples R China.

年份：2018

卷号：93

期号：8

起止页码：2331

外文期刊名：JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY

收录：;EI(收录号：20182705400968);Scopus(收录号：2-s2.0-85049239627);WOS:【SCI-EXPANDED(收录号:WOS:000436870200030)】；

基金：The authors acknowledge the financial support of this work by the West Light Foundation of the Chinese Academy of Sciences, Natural Science Foundation of Gansu Province of China (1501RJZA011) and the National Natural Sciences Foundation of China (NSFC No. 21605150 and 21544013).

语种：英文

外文关键词：metal organic frameworks; attapulgite; hybridization; peptides; adsorption

摘要：BACKGROUNDA series of metal-organic frameworks (MOFs) hybrid materials resulting from the hybridization of MOFs and attapulgite were constructed using a facile reflux route under relatively low reaction temperature, and characterized by FTIR spectra, nitrogen adsorption-desorption isotherms, XRD and TGA. For the first time, MOFs hybridizing with attapulgite were employed to enrich peptides with high adsorption selectivity for glutathione reduced on the basis of three selected model peptides (glutathione reduced, bradykinin and insulin from bovine pancreas) due to pore structure, change in microenvironment and composition of the prepared MOFs materials, and molecular size of the selected peptides. RESULTSThe adsorption capacities of MOFs materials prepared at three different temperatures for glutathione reduced were 66.80, 88.91 and 79.55 mg g(-1) in turn, while those of MOFs hybridization materials greatly enhanced, were 83.49, 99.64 and 97.47 mg g(-1), respectively. The prepared MOFs materials exhibited excellent reusability. The results of FTIR spectra and X-ray photoelectron spectroscopy showed that hydrogen bonding, the sieving effect, p- and the coordination effect were involved in the adsorption process. CONCLUSIONSThe excellent adsorption property and selectivity make the present materials highly promising and potentially useful in practical application as adsorbents for peptides with small molecular size such as glutathione reduced. (c) 2018 Society of Chemical Industry