文献类型：期刊文献

英文题名：Facile fabrication of crown ether functionalized lignin-based biosorbent for the selective removal of Pb(II)

作者：Jin, Can[1,2,3,4,5] Liu, Guifeng[1,2,3,4,5] Wu, Guomin[1,2,3,4,5] Huo, Shuping[1,2,3,4,5] Liu, Zengshe[6] Kong, Zhenwu[1,2,3,4,5]

第一作者：金灿;Jin, Can

通信作者：Kong, ZW[1];Kong, ZW[2];Kong, ZW[3];Kong, ZW[4];Kong, ZW[5];Liu, ZS[6]|[a0005be4642aed69bf127]孔振武;

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Peoples R China;[2]Natl Engn Lab Biomass Chem Utilizat, Nanjing 210042, Peoples R China;[3]SFA, Key Lab Forest Chem Engn, Nanjing 210042, Peoples R China;[4]Key Lab Biomass Energy & Mat Jiangsu Prov, Nanjing 210042, Peoples R China;[5]Nanjing Forestry Univ, Coinnovat Ctr Efficient Proc & Utilizat Forest Re, Nanjing 210042, Peoples R China;[6]ARS, Natl Ctr Agr Utilisat Res, USDA, 1815 N Univ St, Peoria, IL 61604 USA

年份：2020

卷号：155

外文期刊名：INDUSTRIAL CROPS AND PRODUCTS

收录：;EI(收录号：20203108996082);Scopus(收录号：2-s2.0-85088643060);WOS:【SCI-EXPANDED(收录号:WOS:000571934600004)】；

基金：We greatly acknowledge support from the China International Science and Technology Corporation (2017YFE0106800), Natural Science Foundation of Jiangsu Province (BK20181123), and Fundamental Research Funds of Jiangsu Key Laboratory of Biomass Energy and Material (JSBEM-S-201806).

语种：英文

外文关键词：Lignin; Crown ether; Biosorbent; Heavy metal ion; Selective adsorption

摘要：A novel 1-Aza-18-crown-6 functionalized lignin-based adsorbent (AFL) is facilely prepared through Mannich reaction in a one-step process. Structure characterization by Fourier transform infrared spectroscopy, nuclear magnetic resonance spectroscopy, elemental analysis and X-ray photoelectron spectroscopy confirmed the successful fabrication of AFL. AFL was observed to display enhanced adsorption capacity (Q(max) = 91.4 mg/g) and superior selectivity toward Pb(II) ions, due to a display of crown ether units and their interaction with metal ions. The adsorption equilibrium results from a kinetic study indicated that the Pb(II) adsorption by AFL was a chemisorption process. Additionally, the obtained thermodynamic parameters showed the adsorption mechanism to be an exothermic and spontaneous process at room temperature. The AFL could be regenerated by desorption of Pb(II) ions and remained at over 80 % adsorption efficiency after four adsorption-desorption cycles. Therefore, the AFL displays acceptable adsorption performance and can serve as a bioresource-based and recyclable adsorbent material, portending a new expectation in the application for water purification engineering.