文献类型：期刊文献

英文题名：Production of Lignin-containing nanocellulose by FeCl3-catalyzed ternary deep eutectic solvent pretreatment system: Structural characteristics and emulsification capabilities

作者：He, Shuyang[1] Shu, Feng[1] Liu, Xianglin[1] Yan, Ke[1] Lei, Shijie[1] Liu, Yupeng[3] Zhou, Mingu[4] Yu, Hang[1] Zhang, Junhua[1] Yang, Fangxia[1,2]

第一作者：He, Shuyang

通信作者：Yang, FX[1]

机构：[1]Northwest A&F Univ, Coll Forestry, Yangling 712100, Shaanxi, Peoples R China;[2]Northwest A&F Univ, Coll Forestry, Shaanxi Prov Key Lab Econ Plant Resources Dev & Ut, Yangling 712100, Shaanxi, Peoples R China;[3]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Natl Engn & Technol Res Ctr Forest Chem Ind, Nanjing 210037, Jiangsu, Peoples R China;[4]Northwest A&F Univ, Inst Water Saving Agr Arid Area China, Yangling 712100, Shaanxi, Peoples R China

年份：2023

卷号：203

外文期刊名：INDUSTRIAL CROPS AND PRODUCTS

收录：;EI(收录号：20233014441827);Scopus(收录号：2-s2.0-85165530970);WOS:【SCI-EXPANDED(收录号:WOS:001049503700001)】；

基金：This work was supported by the National Natural Science Foundation of China (No. 31670598) .

语种：英文

外文关键词：Lignin-containing nanocellulose (LNC); FeCl 3 catalyst; Ternary deep eutectic solvent (TDES); Emulsification performance; Pickering emulsions

摘要：Pretreatment method is one of the key factors to improve the quality of nanocellulose (NC) production. As a green novel solvent, ternary deep eutectic solvent (TDES) plays an important role in production of lignin containing nanocellulose (LNC), however, higher reaction temperature would limit its industrial application. Herein, a novel strategy of FeCl3-catalyzed TDES (F-TDES) pretreatment combined microfluidization was proposed to produce LNC from poplar (PopulusL.) at lower temperature (80 degrees C). The TDES was composed of choline chloride, lactic acid, and p-toluenesulfonic acid in a molar ratio of 2:10:1. When the optimum dose of FeCl3 in per gram TDES system was 0.15 mmol (i.e. about 3.9% based on the weight of F-TDES), ribbon-like LNCs about 28.68 nm wide and 3.46 nm thick were obtained, which were smaller than that of lignin-free nanocellulose attained from the same preparation conditions. The LNC, lignin content 18.93%, displayed good dispersion stability in water and higher cellulose I crystallinity (57.8%) and thermal stability (Tmax=376 degrees C). Especially, the LNC exhibited more excellent emulsification performance and emulsion stability than NC, which was closely associated with its good amphiphilicity. Within the studied LNC concentration (0.1-0.4%) and oil/water mass ratio (20:80-50:50), increasing LNC concentration and/or oil/water mass ratio was beneficial for the stability of Pickering emulsions. The findings not only provide a milder route for producing LNC from lignocellulose, but also prove LNC would have promising prospects in emulsion systems.