School of Environmental Science and Engineering and Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, China; Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China.
School of Environmental Science and Engineering and Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, China.
Bioresour Technol. 2016 Aug;214:371-375. doi: 10.1016/j.biortech.2016.04.113. Epub 2016 Apr 26.
The aim of this work was to study an environmentally friendly method for pretreating rice straw by using 1-butyl-3-methylimidazolium chloride ([BMIM]Cl) as an ionic liquid (IL) assisted by surfactants. Different temperatures, reaction times, and surfactant concentrations were studied. Compared with [BMIM]Cl only pretreatment, the addition of 1% sodium dodecyl sulfate (SDS) and 1% cetyl trimethyl ammonium bromide (CTAB) increased lignin removal to 49.48% and 34.76%, respectively. Untreated and pretreated rice straw was thoroughly characterized through FTIR, XRD, and FE-SEM. Cellulose crystallinity and surface morphology of the rice straw were substantially altered after surfactant-assisted IL pretreatment. In conclusion, surfactant-assisted IL pretreatment is an effective method for producing fermentable sugars from lignocellulosic substrates.
本工作旨在研究一种使用 1-丁基-3-甲基咪唑氯([BMIM]Cl)作为离子液体(IL)，并辅以表面活性剂预处理稻草的环保方法。研究了不同的温度、反应时间和表面活性剂浓度。与仅用[BMIM]Cl 预处理相比，添加 1%十二烷基硫酸钠(SDS)和 1%十六烷基三甲基溴化铵(CTAB)分别将木质素去除率提高到 49.48%和 34.76%。通过 FTIR、XRD 和 FE-SEM 对未经处理和预处理的稻草进行了全面表征。经表面活性剂辅助 IL 预处理后，稻草的纤维素结晶度和表面形态发生了显著变化。总之，表面活性剂辅助 IL 预处理是从木质纤维素基质中生产可发酵糖的有效方法。
