文献类型：期刊文献

英文题名：Investigating the adsorption behavior and mechanism of Eu(III) and Au(III) on beta-cyclodextrin/polyethylenimine functionalized waste paper

作者：Liu, Fenglei[1];Hua, Shan[1];Hu, Qingyuan[1];Wang, Chao[2];Hu, Baowei[1]

机构：[1]Shaoxing Univ, Sch Life Sci, Huancheng West Rd 508, Shaoxing 312000, Peoples R China;[2]Tsinghua Univ, Sch Environm, Beijing 100084, Peoples R China

年份：2022

卷号：29

期号：3

起止页码：1807

外文期刊名：CELLULOSE

收录：SCI-EXPANDED(收录号：WOS:000749093800001)、、EI(收录号：20220511577445)、Scopus(收录号：2-s2.0-85123863308)、WOS

基金：We gratefully thank the Research Fund Program of National Natural Science Foundation of China (No. 21876115), Zhejiang Public Welfare Technology Application and Social Development Project (LGF21C030001), China Postdoctoral Science Foundation (2021M702911) and State Key Laboratory of Pollution Control and Resource Reuse Foundation (No. PCRRF18021).

语种：英文

外文关键词：Waste paper; beta-CD; Eu(III); Au(III); Adsorption

外文摘要：A bio-adsorbent (DAWP-PEI-beta-CD) was facilely prepared by introducing polyethylenimine (PEI) and beta-cyclodextrin (beta-CD) into dialdehyde waste paper (DAWP) via a facile two-step method. The structures, morphologies and compositions of the as-prepared adsorbents were characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM), solid state nuclear magnetic resonance spectrometry (NMR) and X-ray photoelectron spectroscopy (XPS) techniques. Results showed that the pH values, adsorption temperature and contact time played a vital role in uptake of Eu(III) and Au(III). Meanwhile, the adsorption behavior of Eu(III) and Au(III) could be fitted felicitously with the Langmuir and the pseudo-second-order models, and the maximum adsorption capacities of Eu(III) (pH = 6.0) and Au(III) (pH = 2.0) onto DAWP-PEI-beta-CD were 424.2 and 241.3 mg/g, respectively. Further advanced spectroscopy analysis revealed that the elimination of Eu(III) was attributed to host-guest inclusion and surface complexation interaction, while adsorption of Au(III) might stem from a combination of electrostatic attraction, chelation, host-guest inclusion and redox interaction. This study demonstrated that DAWP-PEI-beta-CD was a promising environmental functional material to separation and enrichment of Eu(III) and Au(III) from contaminated water. [GRAPHICS] .