纳米纤维素基气凝胶的制备及其吸附性能研究进展

在可持续发展已成为全球各国共识的今天,合理且高效地研发及利用可再生生物质能源成为国内外各大课题组研究的热点及方向。而纳米纤维素作为典型的生物质可再生材料,将其应用到环境治理领域成为再好不过的选择。同时,以纳米纤维素为基体制备的气凝胶作为第三代气凝胶材料,具有高孔隙率、高比表面积、低密度、低介电常数和较高的吸附性等性能,在染料吸附、油污吸附、重金属离子吸附、CO 2气体吸附等吸附领域有着广阔的应用前景。综述了纳米纤维素的制备方法、纳米纤维素基气凝胶的制备工艺及其在吸附领域的应用,探讨了纳米纤维素基气凝胶在研发中存在的问题,展望了纳米纤维素基气凝胶在吸附领域的未来发展方向。

Progress in Preparation and Adsorption Properties of Nano-Cellulose Based Aerogel

Nowadays,sustainable development has become the consensus of all countries in the world.Reasonable and efficient research and development of renewable biomass energy for reuse has become a hot research topic and direction of major research groups at home and abroad.As a typical biomass renewable resource,nano-cellulose has become a good choice in the field of environmental treatment.Meanwhile,nano-cellulose based aerogel as the third generation aerogels,has the advantages of high porosity,high specific surface area,low density,low dielectric constant and high absorbability.It has broad application prospects in dye adsorption,oil adsorption,heavy metal ions adsorption,CO 2 gas adsorption and other fields.The preparation methods of nano-cellulose,the preparation technology of nano-cellulose based aerogel and its applications in the field of adsorption are reviewed in this paper.The problems existing in the research and development of nano-cellulose based aerogel are discussed,and the future development direction of nano-cellulose based aerogel in the field of adsorption is prospected.