文献类型：期刊文献

英文题名：Bamboo Nanocellulose/Montmorillonite Nanosheets/Polyethyleneimine Gel Adsorbent for Methylene Blue and Cu(II) Removal from Aqueous Solutions

作者：Zhang, Xuelun[1] Li, Feng[2] Zhao, Xiyu[1] Cao, Jiwen[1,3] Liu, Shuai[1,4,5] Zhang, You[1] Yuan, Zihui[1] Huang, Xiaobo[1] De Hoop, Cornelis F.[6] Peng, Xiaopeng[3,4,5] Huang, Xingyan[1,7]

第一作者：Zhang, Xuelun

通信作者：Huang, XY[1];Peng, XP[2];Peng, XP[3];Peng, XP[4];Huang, XY[5]

机构：[1]Sichuan Agr Univ, Coll Forestry, Chengdu 611130, Peoples R China;[2]Chengdu Agr Coll, Res Inst Characterist Flowers & Trees, Chengdu 611130, Peoples R China;[3]Chinese Acad Forestry, Res Inst Forestry, State Key Lab Tree Genet & Breeding, Key Lab Tree Breeding & Cultivat,Natl Forestry & G, Beijing 100091, Peoples R China;[4]Qilu Univ Technol, Shandong Acad Sci, Key Lab Pulp & Paper Sci & Technol, Minist Educ, Jinan 250353, Peoples R China;[5]Natl Forestry & Grassland Adm, Key Lab Plant Fiber Funct Mat, Fuzhou 350108, Peoples R China;[6]Louisiana State Univ, Agr Ctr, Sch Renewable Nat Resources, Baton Rouge, LA 70803 USA;[7]Wood Ind & Furniture Engn Key Lab Sichuan Prov Dep, Chengdu 611130, Peoples R China

年份：2023

卷号：9

期号：1

外文期刊名：GELS

收录：;Scopus(收录号：2-s2.0-85146777710);WOS:【SCI-EXPANDED(收录号:WOS:000917681500001)】；

基金：This work was supported by the Fundamental Research Funds for the Central Non-Profit Research Institution of Chinese Academy of Forestry (CAFYBB2022SY003), the National Natural Science Foundation of China (32101598), the Foundation of Key Laboratory of Pulp and Paper Science and Technology of Ministry of Education of China (KF201909), the National Forestry and Grassland Administration Key Laboratory of Plant Fiber Functional Materials (2022KFJJ02), and the Project of Nanhai Series of Talent Cultivation Program.

语种：英文

外文关键词：gel; adsorption; nanocellulose; montmorillonite; methylene blue; heavy metal

摘要：In recent years, the scarcity of pure water resources has received a lot of attention from society because of the increasing amount of pollution from industrial waste. It is very important to use low-cost adsorbents with high-adsorption performance to reduce water pollution. In this work, a gel adsorbent with a high-adsorption performance on methylene blue (MB) and Cu(II) was prepared from bamboo nanocellulose (BCNF) (derived from waste bamboo paper) and montmorillonite nanosheet (MMTNS) cross-linked by polyethyleneimine (PEI). The resulting gel adsorbent was characterized by Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (SEM), X-ray photoelectron spectroscopic (XPS), etc. The results indicated that the MB and Cu(II) adsorption capacities of the resulting gel adsorbent increased with the solution pH, contact time, initial concentration, and temperature before equilibrium. The adsorption processes of MB and Cu(II) fitted well with the fractal-like pseudo-second-order model. The maximal adsorption capacities on MB and Cu(II) calculated by the Sips model were 361.9 and 254.6 mg/g, respectively. The removal of MB and Cu(II) from aqueous solutions mainly included electrostatic attraction, ion exchange, hydrogen bonding interaction, etc. These results suggest that the resulting gel adsorbent is an ideal material for the removal of MB and Cu(II) from aqueous solutions.