合成及特性研究杂化分子印迹聚合物（MIP）膜用于去除亚甲基蓝（MB）。
Synthesis and characterization of hybrid molecularly imprinted polymer (MIP) membranes for removal of methylene blue (MB).
机构信息
Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia.
出版信息
Molecules. 2012 Feb 15;17(2):1916-28. doi: 10.3390/molecules17021916.
This work reports the synthesis and characterization of a hybrid molecularly imprinted polymer (MIP) membrane for removal of methylene blue (MB) in an aqueous environment. MB-MIP powders were hybridized into a polymer membrane (cellulose acetate (CA) and polysulfone (PSf)) after it was ground and sieved (using 90 µm sieve). MB-MIP membranes were prepared using a phase inversion process. The MB-MIP membranes were characterized using Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscope (SEM). Parameters investigated for the removal of MB by using membrane MB-MIP include pH, effect of time, concentration of MB, and selectivity studies. Maximum sorption of MB by PSf-MB-MIP membranes and CA-MB-MIP membranes occurred at pH 10 and pH 12, respectively. The kinetic study showed that the sorption of MB by MB-MIP membranes (PSf-MB-MIP and CA-MB-MIP) followed a pseudo-second-order-model and the MB sorption isotherm can be described by a Freundlich isotherm model.
本工作报道了一种用于在水环境中去除亚甲基蓝（MB）的杂化分子印迹聚合物（MIP）膜的合成与表征。MB-MIP 粉末经过研磨和筛分（使用 90 µm 筛网）后，被杂化到聚合物膜（醋酸纤维素（CA）和聚砜（PSf））中。MB-MIP 膜是通过相转化过程制备的。采用傅里叶变换红外光谱（FTIR）和扫描电子显微镜（SEM）对 MB-MIP 膜进行了表征。用膜 MB-MIP 去除 MB 时考察了 pH 值、时间效应、MB 浓度和选择性研究等参数。PSf-MB-MIP 膜和 CA-MB-MIP 膜对 MB 的最大吸附分别发生在 pH 值为 10 和 pH 值为 12。动力学研究表明，MB-MIP 膜（PSf-MB-MIP 和 CA-MB-MIP）对 MB 的吸附遵循拟二级动力学模型，MB 吸附等温线可以用 Freundlich 等温线模型来描述。
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