间苯二胺分子印迹溶胶-凝胶杂化物的合成及其吸附性能的研究  

Synthesis and Adsorption Property of the m-Phenylenediamine-imprinted Sol-gel Hybrid

作　　者：李翔[1] 关怀民[2] 贾莉[2] 童跃进[2,3] 

机构地区：[1]福建师范大学化学与化工学院 [2]福建师范大学材料科学与工程学院 [3]福建师范大学化工新材料研究中心,福建福州350007

出　　处：《化学工程与装备》2014年第4期17-22,共6页Chemical Engineering & Equipment

基　　金：国家自然科学基金项目(No.21274022);福建省自然科学基金项目(No.23131065)~~

摘　　要：首先以间苯二胺为模板分子,通过与3-异氰酸丙基三乙氧基硅烷反应合成含模板分子的功能性单体,其化学结构经红外光谱、质谱和核磁共振谱等表征手段证实。进一步加入交联剂四乙氧基硅烷(TEOS)合成分子印迹杂化物(MIH),并对该杂化物的形成机理进行探索。另外,通过测定杂化物对模板分子等温吸附容量和竞争性吸附容量,研究杂化物的吸附性能和选择性识别能力。MIH对间苯二胺分子的最大吸附容量为7.42 mg/g,而非分子印迹杂化物(NIH)的最大吸附容量为3.20 mg/g。MIH对间苯二胺的结构类似物苯胺和2,4,6-三溴苯胺的非特异性吸附容量很小,仅分别为1.99和0.98 mg/g,且NIH的这些值与MIH的相接近。上述结果表明间苯二胺的MIH对间苯二胺具有良好的吸附能力和吸附选择性。The functional monomer that containing the template was synthesized from m-phenylenediamine as template molecule and 3-（triethoxysilyl）propyl isocyanate, followed by cross-linking using tetraethoxysilicone （TEOS） as cross-linking agent and removing template molecule to obtain the molecularly imprinted hybrid （MIH）. The chemical structures of the functional monomer and MIH obtained were proved by means of FT-IR, ESI-MS, 1H NMR and the 14C ads NMR. The adsorption isotherm and competitive adsorption properties of the MIH were measured, and then orption capacity and seletive recognition ability were investigated. The equilibrium adsorption capacity of MIH to m-phenylenediamine reached 7.42 mg/g, while that of the non-imprinted hybrid （NIH） was 3.20 mg/g. The adsorption capacity of MIH for aminobenzene and 2,4,6-tribromoaniline as template analogues was on 0.98, respectively, and these of NIH were almost the same as MIH. It was concluded that MIH had high ability and recognition selectivity to m-phenylenediamine ly ad 1.99 and sorptlon

关 键 词：间苯二胺 3-异氰酸丙皋三乙氧綦砖烷 分子印迹溶胶一凝胶杂化物 吸附性能 

分 类 号：TQ427.26[化学工程] O647.3[理学—物理化学]