Fan Kaiqi, Wang Xiaobo, Wang Xiao, Yang Haoran, Han Guanglu, Zhou Liming, Fang Shaoming
College of Material and Chemical Engineering, Zhengzhou University of Light Industry Zhengzhou 450002 P. R. China
Journal Editorial Department, Zhengzhou University of Light Industry Zhengzhou 450002 P. R. China.
RSC Adv. 2020 Oct 8;10(61):37080-37085. doi: 10.1039/d0ra07658a. eCollection 2020 Oct 7.
Two effective and one-step-synthesized organogelators based on d-gluconic acetal derivatives have been developed to show phase-selective gelation behaviours towards aromatic solvents from their biphasic mixtures with water. The dominant factors that drive gelation have been studied using FT-IR and temperature-dependent H NMR spectroscopy. Particularly, gelator GAA-2 in powder form could selectively congeal toluene, benzene and -xylene at room temperature under mild stirring. Additionally, GAA-2 could gelate the aromatic solvents within 10 min and the recovery rate of the aromatic solvents could reach about 82% under a certain condition. The benefits of wide source availability, being easy to synthesize, and recyclable performance of the gelator make GAA-2 ideal for real-world remediation of aromatic solvents.
基于D-葡萄糖缩醛衍生物开发了两种一步合成的有效有机凝胶剂，它们对与水形成的双相混合物中的芳香族溶剂表现出相选择性凝胶化行为。利用傅里叶变换红外光谱（FT-IR）和温度依赖的核磁共振氢谱（H NMR）研究了驱动凝胶化的主要因素。特别地，粉末形式的凝胶剂GAA-2在室温下温和搅拌时能选择性地使甲苯、苯和二甲苯凝固。此外，GAA-2能在10分钟内使芳香族溶剂凝胶化，在一定条件下芳香族溶剂的回收率可达约82%。该凝胶剂来源广泛、易于合成且具有可回收性能，使其成为实际修复芳香族溶剂的理想选择。
