文献类型：期刊文献

英文题名：Synthesis of bio-based MIL-100(Fe)@CNF-SA composite hydrogel and its application in slow-release N-fertilizer

作者：Guo, Lizhen[1] Wang, Yuqi[1] Wang, Meng[2] Shaghaleh, Hiba[1] Hamoud, Yousef Alhaj[3] Xu, Xu[1] Liu, He[4]

第一作者：Guo, Lizhen

通信作者：Xu, X[1];Liu, H[2]

机构：[1]Nanjing Forestry Univ, Jiangsu Prov Key Lab Chem & Utilizat Agroforest B, Jiangsu Key Lab Biomass Based Green Fuels & Chem, Coll Chem Engn,Coinnovat Ctr Efficient Proc & Uti, Nanjing 210037, Jiangsu, Peoples R China;[2]China Tobacco Yunnan Ind Co Ltd, R&D, Kunming 650231, Yunnan, Peoples R China;[3]Hohai Univ, Coll Agr Sci & Engn, Nanjing 210098, Peoples R China;[4]Chinese Acad Forestry, Coinnovat Ctr Efficient Proc & Utilizat Forest Re, Natl Engn Lab Biomass Chem Utilizat,Key Lab Chem, Inst Chem Ind Forestry Prod,Key Lab Biomass Energ, Nanjing 210042, Jiangsu, Peoples R China

年份：2021

卷号：324

外文期刊名：JOURNAL OF CLEANER PRODUCTION

收录：;EI(收录号：20214110991580);Scopus(收录号：2-s2.0-85116453847);WOS:【SCI-EXPANDED(收录号:WOS:000724611100004)】；

基金：This work was supported by the Fundamental Research Funds of CAF (CAFYBB2020QC003), the Opening Project of Guangxi Key Laboratory of Forest Products Chemistry and Engineering (GXFK2008), the Topnotch Academic Programs Project of the Jiangsu Higher Education Institutions (ATPP), and the Priority Academic Program Development of the Jiangsu Higher Education Institutions (PAPD).

语种：英文

外文关键词：Cellulose; Metal-organic frameworks; Water retention; Slow release

摘要：With the severe shortage of water resources and the low utilization efficiency of fertilizer, slow-release fertilizer equipped with water-absorbing and water-retaining capacity has captured much attention. Herein, by integrating metal-organic frameworks (MOFs) with cellulose nanofibres (CNFs) and sodium alginate (SA), a novel cellulose-based hydrogel (MIL-100(Fe)@CNF-SA) was fabricated that acted as a carrier for urea. The resultant hydrogel was not only qualified with a high surface area of 129.17 m(2)/g but also affluent in the hydrophilic groups. In parallel with the good water-holding capacity of 55% when the loading of the resultant hydrogel was only 0.5 g, the complete loss of the water in the treated soil was successfully slowed down by nearly 20 d compared with the soil without treatment. Urea (1.47 g/g) could be captured in the composite hydrogel, wherein the slow release of urea was achieved due to the synergism of the highly porous structure of the hydrogel and the crystals with a high specific surface area. Moreover, the positive effect of the resultant hydrogel on the growth of wheat was indexed to the germination rate, number of tillers, photosynthetic rate and chlorophyll content of the crop, which verified their further application in irrigating farming.