纤维素纳米晶(cellulose nanocrysals,CNCs)是一种新型的模板材料,利用其自组装形成的手性结构可以实现CNCs模板法制备有序介孔材料.该法直接采用先驱体与具有自组装效应的CNCs复合并选择性去除模板或先驱体得到有序介孔,避免了预先制备介孔模板,缩短了工艺,并且对介孔结构可调性好.对应的介孔材料比表面积大、孔隙率高,介孔结构有序,为可控制备有序介孔材料提供了参考路径.介绍了CNCs的制备及其自组装,并且综述了近年来利用CNCs模板法制备有序介孔材料的研究进展,最后,对该领域未来研究方向进行了展望.
Cellulose nanocrystals (CNCs) was a newly template material and the ordered chiral structure formed in the self-assembly of CNCs could be used as the template for ordered mesoporous materials.This method directly mixed precursor with CNCs of self-assembly effect and selectively eliminated precursor or template to finally form ordered mesoporous material, which prevented the pre-preparation of mesoporous template, making steps less and mesoporous structure controllable as well.The as-prepared mesoporous material obtained high specific surface area, porosity and ordered mesopores, which supplied the reference for preparation of orderd mesoporous material under control.In this paper, the preparation and the self-assembly of CNCs were introduced.The development of ordered mesoporous materials templated by CNCs in recent year was reviewed.The prospective development of mesoporous functional materials by CNCs templates was also presented.
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