Si Zhenhui, Yu Ping, Dong Yanying, Lu Yang, Tan Zhenjiang, Yu Xiaopeng, Zhao Rui, Yan Yongsheng
School of Computer Science, Jilin Normal University, Siping, China.
Key Laboratory of Numerical Simulation of Jilin Province, Jilin Normal University, Siping, China.
Front Chem. 2019 Jan 24;6:674. doi: 10.3389/fchem.2018.00674. eCollection 2018.
In this study, thermo-responsive molecularly imprinted hydrogels (T-MIHs) were developed as an effective potential adsorbent for selectively adsorption phenol from wastewater. During the process, N-isopropyl acrylamide (NIPAm) was used as thermal responsive monomer. The obtained materials were characterized in detail by fourier transform infrared (FT-IR) spectrometer, scanning electron microscope (SEM), and thermo gravimetric analysis (TGA). A series of static adsorption studies were performed to investigate the kinetics, specific adsorption equilibrium, and selective recognition ability of phenol. Reversible adsorption and release of phenol were realized by changing temperatures. Three type of phenols, namely 3-chlorophenols (3-CP), 2,4-dichlorophenol (2,4-DCP), and 2,4,6-trichlorophenol (2,4,6-TCP) were selected as model analytes to evaluate the selective recognition performance of T-MIHs. The T-MIHs have good selectivity, temperature response, and reusability, making them ideal in applying in the controlled separation and release of phenol pollutants.
在本研究中，热响应性分子印迹水凝胶（T-MIHs）被开发为一种有效的潜在吸附剂，用于从废水中选择性吸附苯酚。在此过程中，N-异丙基丙烯酰胺（NIPAm）用作热响应单体。通过傅里叶变换红外（FT-IR）光谱仪、扫描电子显微镜（SEM）和热重分析（TGA）对所得材料进行了详细表征。进行了一系列静态吸附研究，以研究苯酚的吸附动力学、比吸附平衡和选择性识别能力。通过改变温度实现了苯酚的可逆吸附和释放。选择三种类型的酚，即3-氯酚（3-CP）、2,4-二氯酚（2,4-DCP）和2,4,6-三氯酚（2,4,6-TCP）作为模型分析物，以评估T-MIHs的选择性识别性能。T-MIHs具有良好的选择性、温度响应性和可重复使用性，使其成为应用于苯酚污染物控制分离和释放的理想材料。
