文献类型：期刊文献

英文题名：Chitosan/Al2O3-HA nanocomposite beads for efficient removal of estradiol and chrysoidin from aqueous solution

作者：Li, Long[1];Iqbal, Jibran[2];Zhu, Ying[1];Wang, Fang[1];Zhang, Feiyu[1];Chen, Wanchao[3];Wu, Ting[1];Du, Yiping[1]

机构：[1]East China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Sch Chem & Mol Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Zayed Univ, Coll Nat & Hlth Sci, Abu Dhabi, U Arab Emirates;[3]Shanghai Acad Agr Sci, Inst Edible Fungi, Key Lab Edible Fungi Resources & Utilizat South, Natl Engn Res Ctr Edible Fungi,Minist Agr, Shanghai 201403, Peoples R China

年份：2020

卷号：145

起止页码：686

外文期刊名：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

收录：;EI(收录号：20242616429307);WOS:【SCI-EXPANDED(收录号:WOS:000515196500070)】；

基金：The research was supported by the RIF Grant (R19052) from Zayed University, Abu Dhabi, United Arab Emirates.

语种：英文

外文关键词：Estradiol; Dye; Adsorption; Composite material; Reusability

摘要：Alumina, as a support material, was loaded together with chitosan and hydroxyapatite to form chitosan/Al2O3-HA composite beads and was used for estradiol and chrysoidin removal from aqueous solution in the present work. The physicochemical properties of the beads were studied with Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectrometry (MR), thermogravimetric analysis (TGA) and Brunauer-Emmett-Teller (BET) surface area analysis. STIR spectra confirmed that the chitosan was loaded successfully on Al2O3-HA, and functional groups were immobilized onto the surface of the beads after the synthesis. The adsorption condition including pH, the amount of adsorbent, initial concentration and time were evaluated during the batch experiments. Isotherm data best matched the Langmuir model and the pseudo-second-order model best described the adsorption kinetics. The maximum adsorption capacity was found to be 39.78 mg/g and 23.26 mg/g for estradiol and chrysoidine, respectively. The adsorbed estradiol and chrysoidin were completely eluted from the composite beads with the eluent of 0.1 M H2SO4/MeOH and the regenerated material was used in several cycles without deterioration in its initial performances. This study suggests that the developed composite beads have high potential for the efficient removal estradiol and chrysoidin from aqueous solution.