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Green and Sustainable Preparation of Cellulose Nanocrystal
Received:March 25, 2021  
DOI：10.11980/j.issn.0254-508X.2021.09.015
Key Words:cellulose nanocrystal （CNC）  green  sustainable  preparation methods
Fund Project:天津科技大学国家级大学生创新创业训练计划项目（202010057022，202010057004，202110057274）；天津科技大学校级大学生创新创业训练计划项目（202010057025，202110057268）。
Author NameAffiliationPostcode
ZHANG Shuya Tianjin Key Lab of Pulp & Paper， School of Light Industry Science & Engineering， Tianjin University of Science & Technology， Tianjin，300457 300457
XU Ting Tianjin Key Lab of Pulp & Paper， School of Light Industry Science & Engineering， Tianjin University of Science & Technology， Tianjin，300457 300457
ZHANG Ning Tianjin Key Lab of Pulp & Paper， School of Light Industry Science & Engineering， Tianjin University of Science & Technology， Tianjin，300457 300457
LIU Jialin Tianjin Key Lab of Pulp & Paper， School of Light Industry Science & Engineering， Tianjin University of Science & Technology， Tianjin，300457 300457
LIN Qingyi Tianjin Key Lab of Pulp & Paper， School of Light Industry Science & Engineering， Tianjin University of Science & Technology， Tianjin，300457 300457
CHEN Jianing Tianjin Key Lab of Pulp & Paper， School of Light Industry Science & Engineering， Tianjin University of Science & Technology， Tianjin，300457 300457
DU Haishun* Department of Chemical Engineering， Auburn University， Auburn， AL 36849， USA 36849
SI Chuanling Tianjin Key Lab of Pulp & Paper， School of Light Industry Science & Engineering， Tianjin University of Science & Technology， Tianjin，300457 300457
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Abstract:Cellulose nanocrystal （CNC） is a kind of nanomaterial obtained by chemical or physical treatment of natural cellulose. It has attracted more and more attention in the fields of biomedicine， electronic devices due to its unique and excellent physiochemical properties. In recent years， the green and sustainable preparation of CNC had been extensively studied. This review briefly introduced the traditional methods for the preparation of CNC firstly， and pointed out the advantages and disadvantages， especially the environmental friendliness. Furthermore， the green and sustainable preparation methods developed in recent years were comprehensively introduced， mainly including organic acid hydrolysis， solid acid hydrolysis， subcritical hydrolysis， ionic liquid treatment， eutectic solvent treatment， oxidative degradation and electron beam radiation， etc. Finally， the future research direction of CNC was proposed.
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