摘要
二氧化硅纳米片作为一种二维材料,兼备介孔特性,在生物医药、催化吸附和分离纯化等领域有着广泛的应用.由于二氧化硅缺乏层状前驱体,同时二维结构本身具有较高的表面能,导致合成出的纳米片有形状不规则、步骤繁琐和介孔孔径较小等系列问题.针对上述问题,从国内外二氧化硅合成的相关研究出发,阐述了不同合成方法的原理、总结出各自的优势及不足.此外,还介绍了二氧化硅纳米片在环境、生物和能源领域的应用,并对未来的应用研究方向进行了展望,可以为二氧化硅纳米片的进一步研究提供参考.
Abstract
Silica nanosheet as a type of two-dimensional material,especially mesoporous silica nanosheet possessing the characteristics of mesoporous,they have wide applications in the fields of biological medi-cine,catalysis and adsorption,separation and purification,etc.Lack of layered precursors of silica in nature and the high surface energy of two-dimensional structure lead to the formation of nanosheets with irregular shape,complicated steps,and small mesopore size.Based on the above problems,this review focuses on the domestic and international research literature about the preparation of silica nanosheets,and briefly illustrates the principles,the advantages,and shortages of different preparation methods.Fur-thermore,the applications of silica nanosheets in the fields of environment,biology,and energy are sum-marized,and the prospect of the direction of application research in future is made.This review can pro-vide reference for the further study of silica nanosheets.
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