Optimizing Sol-Gel Derived SiO2 Powders for Purification of Ethanol by Tuning pH and Addition of Polyethylene Glycol
WU Cheng-hsien, JENG Jiann-shing, CHENG Ren-hao, DING Shang-wu
Chinese Journal of Magnetic Resonance . 2014, (1): 7 -19 .