Zhang Jing, Liu Jiahui, Tong Ciqing, Chen Shipeng, Zhang Baohao, Zhang Bao, Song Jian
School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China.
The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin, 300072, China.
Nanoscale Res Lett. 2019 Feb 1;14(1):42. doi: 10.1186/s11671-019-2865-6.
Novel two-component gel systems based on aliphatic acid-hydroxy/base interaction were developed as smart materials for environmental remediation. The G1-A16 gelator could be used directly as a powder form to selectively gel aromatic solvents (nitrobenzene and o-dichlorobenzene) from their mixtures with wastewater (containing 0.5 M sodium nitrate and 0.5 M sodium sulfate) via a simple shaking strategy at room temperature without employing co-solvents and a heating-cooling process. Meanwhile, the two-component gel system can efficiently remove the toxic dyes from the aqueous solution. The dominant factors that drive gelation in the case of the gelator and nitrobenzene or water have been studied using FT-IR, H NMR, and XRD. Overall, our research provides an efficient two-component approach for facilely tuning the properties of one-component gel for the realization of high-performance functionalities of gels. At the same time, our study demonstrates potential industrial application prospect in removing pollutants efficiently (such as aromatic solvents and toxic dye removal).
基于脂肪酸-羟基/碱相互作用的新型双组分凝胶体系被开发为用于环境修复的智能材料。G1-A16凝胶剂可以直接以粉末形式使用，通过在室温下简单振荡的策略，无需使用共溶剂和加热-冷却过程，就能从与废水（含有0.5 M硝酸钠和0.5 M硫酸钠）的混合物中选择性地凝胶化芳香族溶剂（硝基苯和邻二氯苯）。同时，该双组分凝胶体系能够有效地从水溶液中去除有毒染料。利用傅里叶变换红外光谱（FT-IR）、核磁共振氢谱（H NMR）和X射线衍射（XRD）研究了凝胶剂与硝基苯或水形成凝胶时的主要驱动因素。总体而言，我们的研究提供了一种高效的双组分方法，可方便地调节单组分凝胶的性质，以实现凝胶的高性能功能。同时，我们的研究展示了在高效去除污染物（如芳香族溶剂和有毒染料）方面潜在的工业应用前景。
