标题: TiO2/rectorite-trapped cellulose composite nanofibrous mats for multiple heavy metal adsorption

作者: Wang, C (Wang, Chi); Zhan, YF (Zhan, Yingfei); Wu, Y (Wu, Yang); Shi, XW (Shi, Xiaowen); Du, YM (Du, Yumin); Luo, Y (Luo, Yan); Deng, HB (Deng, Hongbing)

来源出版物: INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES 卷: 183 页: 245-253 DOI: 10.1016/j.ijbiomac.2021.04.085 出版年: JUL 31 2021

摘要: The anthropogenic release of highly toxic heavy metals into the environment presents a huge challenge for ecosystems and human society. Recoverable and efficient adsorption materials could be obtained by trapping inorganic adsorbents (e.g., TiO2 nanoparticles and rectorite (REC)), in a natural polymer matrix. In this study, a series of cellulose-TiO2/REC composite nanofibrous mats were fabricated via electrospinning. The interactions between inorganic adsorbents and cellulose molecules improved the thermal stability, surface area, tensile strength and adsorption capacity of the mats. We focused on the adsorption of Pb2+, Cu2+ and Cd2+ from acidic solutions onto cellulose-TiO2/REC composite nanofibrous mats in multiple systems because the magnitudes of heavy metal concentrations in wastewater typically varied. The maximum total adsorption capacity of 69.81 mg/g was obtained by Cellulose-TiO2/REC2:1 nanofibrous mats. The composite nanofibrous mats successfully trapped TiO2 nanoparticles, and the obtained cellulose-TiO2/REC nanofibrous mats could be used to remove heavy metals from acidic wastewater. (C) 2021 Published by Elsevier B.V.

入藏号: WOS:000675832400010

PubMed ID: 33872616

语言: English

文献类型: Article

作者关键词: Cellulose nanofibers; TiO2/rectorite; Heavy metal adsorption

地址: [Wang, Chi; Zhan, Yingfei; Wu, Yang; Shi, Xiaowen; Du, Yumin; Deng, Hongbing] Wuhan Univ, Sch Resource & Environm Sci, Hubei Int Sci & Technol Cooperat Base Sustainable, Hubei Key Lab Biomass Resource Chem & Environm Bi, Wuhan 430079, Peoples R China.

[Luo, Yan] Shenzhen Inspect & Testing Ctr Qual & Safety Farm, Shenzhen 518000, Peoples R China.

通讯作者地址: Deng, HB (通讯作者)，Wuhan Univ, Sch Resource & Environm Sci, Hubei Int Sci & Technol Cooperat Base Sustainable, Hubei Key Lab Biomass Resource Chem & Environm Bi, Wuhan 430079, Peoples R China.

Luo, Y (通讯作者)，Shenzhen Inspect & Testing Ctr Qual & Safety Farm, Shenzhen 518000, Peoples R China.

电子邮件地址: luoyan@mail.amr.sz.gov.cn; hbdeng@whu.edu.cn

影响因子：6.953