文献类型：期刊文献

英文题名：Sustainable preparation of cellulose nanocrystals: state of the art and perspectives

作者：Gao, Mengge[1,2];Shang, Yazhuo[2];Li, Bin[1,4,5];Du, Haishun[1,3]

机构：[1]Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biofuels, Qingdao 266101, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[3]Auburn Univ, Dept Chem Engn, Auburn, AL 36849 USA;[4]Shandong Energy Inst, Qingdao 266101, Peoples R China;[5]Qingdao New Energy Shandong Lab, Qingdao 266101, Peoples R China

年份：2022

卷号：24

期号：24

起止页码：9346

外文期刊名：GREEN CHEMISTRY

收录：;EI(收录号：20224813188013);WOS:【SCI-EXPANDED(收录号:WOS:000889781900001)】；

基金：This work was supported by the Shandong Provincial Natural Science Foundation for Distinguished Young Scholars (China) (no. ZR2019JQ10), the Qingdao Independent Innovation Major Project (no. 21-1-2-23-hz), and the Shandong Energy Institute Research Foundation (no. SEI S202106).

语种：英文

外文关键词：Cellulose derivatives - Chlorine compounds - Corrosion - Enzymatic hydrolysis - Ionic liquids - Nanocrystals - Nanostructured materials - Organic acids - Water pollution

摘要：As sustainable and advanced nanomaterials, cellulose nanocrystals (CNCs) attract extensive attention from both academia and industry due to their superior physical and chemical properties. Strong inorganic acid (e.g., H2SO4) hydrolysis is the most common method for the preparation of CNCs because of its high efficiency. However, inorganic acid hydrolysis faces several limitations such as severe equipment corrosion, over-degradation of cellulose, pollution of the environment, and the use of a large amount of water. This review comprehensively summarizes sustainable strategies invented in recent years for the preparation of CNCs, including the oxidation method, ionic liquid treatment, deep eutectic solvent treatment, enzymatic hydrolysis, inorganic solid acid hydrolysis, organic acid hydrolysis, supercritical water hydrolysis, HCl vapor/gas hydrolysis, and the electron beam radiation method. It is believed that CNCs, as green and renewable nanomaterials, have broad application prospects in the future, and the realization of the green, low-cost, and sustainable preparation of CNCs will be the prerequisite guarantee for the large-scale application of CNCs.