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以丙烯酸(AA)和1-甲基-3-(4-乙烯基苯甲基)咪唑氯(VBIm-Cl)离子液体为原料,通过自由基聚合制备了P(AA-co-VBIm-Cl)水凝胶。采用红外光谱(FTIR)及扫描电镜(SEM)对水凝胶的组成及形貌进行了表征。将制备的P(AA-co-VBIm-Cl)水凝胶通过阴离子交换还原得到P(AA-co-VBIm-Cl)Pd(0)催化剂。采用粉末X射线衍射(XRD)和透射电镜(TEM)对催化剂中的Pd纳米粒子进行了表征,在P(AA-co-VBIm-Cl)水凝胶中形成的Pd纳米粒子粒径为2~6nm。通过催化还原对硝基苯酚,结果表明,P(AA-co-VBIm-Cl)Pd(0)催化剂具有较高的催化活性。
P (AA-co-VBIm-Cl) was prepared by free-radical polymerization using acrylic acid (AA) and 1-methyl-3- (4-vinylbenzyl) imidazolium chloride (VBIm- Hydrogels. The composition and morphology of hydrogel were characterized by FTIR and SEM. The prepared P (AA-co-VBIm-Cl) hydrogel was reduced by anion exchange to obtain P (AA-co-VBIm-Cl) Pd (0) catalyst. The Pd nanoparticles in the catalyst were characterized by X-ray powder diffraction (XRD) and transmission electron microscopy (TEM). The size of Pd nanoparticles formed in P (AA-co-VBIm-Cl) hydrogel was 2 ~ 6nm. The catalytic reduction of p-nitrophenol showed that Pd (0) catalyst had a high catalytic activity for P (AA-co-VBIm-Cl).