文献类型：期刊文献

英文题名：A TEMPO-oxidized cellulose nanofibers/MOFs hydrogel with temperature and pH responsiveness for fertilizers slow-release

作者：Lin, Xiangyu[1] Guo, Lizhen[1] Shaghaleh, Hiba[2] Hamoud, Yousef Alhaj[2] Xu, Xu[1] Liu, He[3]

第一作者：Lin, Xiangyu

通信作者：Xu, X[1];Liu, H[2]

机构：[1]Nanjing Forestry Univ, Coll Chem Engn, Adv Anal & Testing Ctr,Jiangsu Key Lab Biomass Ba, Int Innovat Ctr Forest Chem & Mat,Jiangsu Prov Ke, Nanjing 210037, Jiangsu, Peoples R China;[2]Hohai Univ, Coll Agr Sci & Engn, Nanjing 210098, Peoples R China;[3]Chinese Acad Forestry, Inst Chem Ind Forestry Prod,Natl Engn Lab Biomass, Natl Forestry & Grassland Adm,Key Lab Chem Engn F, Key Lab Biomass Energy & Mat,Coinnovat Ctr Effici, Nanjing 210042, Jiangsu, Peoples R China

年份：2021

卷号：191

起止页码：483-491

外文期刊名：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

收录：;EI(收录号：20240815600899);Scopus(收录号：2-s2.0-85115814418);WOS:【SCI-EXPANDED(收录号:WOS:000710522700007)】；

基金：We gratefully acknowledge the Fundamental Research Funds of CAF ( CAFYBB2020QC003 ) and the Opening Project of Guangxi Key Laboratory of Forest Products Chemistry and Engineering ( GXFK2008 ) for financial support of this research.

语种：英文

外文关键词：Cellulose; Hydrogel; Slow-release

摘要：In this work, a kind of MOF MIL-100(Fe)@CNFs hydrogel (MC) based on TEMPO-oxidized cellulose nanofibers (CNFs) for fertilizers slow-release was prepared by free-radical polymerization, where N-vinyl caprolactam (NVCL) and CNFs were involved to exhibit temperature and pH response, respectively. Particularly, porous MIL100(Fe), a kind of metal organic frameworks (MOFs), was introduced to optimize the load and slow-release capabilities. The Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, and thermogravimetric analysis were used to characterize. The swelling behaviors and water-retention capabilities of hydrogels were evaluated. Using urea as the model fertilizer, the slow-release mechanism was revealed. Wheat was used as the model crop to evaluate the practical growth status. Compared with MC-0% hydrogels, the MC10% hydrogels exhibited a better swelling capacity (37 g/g), water-retention (22.78%) and slow-release performance (40.84%). It also exhibited sensitivities to temperature and pH for regulating urea release. Besides, the number of tillers and leaves of wheat fertilized with MC hydrogels significantly increased, as did the photosynthetic rate. In conclusion, the MC-0% hydrogels had a positive influence on crops growth, and promoted the possible utilization of hydrogels in slow-release fertilizers.