We demonstrate the use of a supernormal valence transition-metal (Ce(IV) and Cu(III))-mediated redox system for the surface grafting on the halloysite nanotubes (HNTs). Following this way, commonly-used vinyl monomers were grafted on HNTs in one step under mild condition. The grafting was evidenced using FTIR, X-ray photoelectron spectroscopy (XPS), and thermogravimetric analysis (TGA). The micro-morphology was carefully characterized by transmission electron microscope (TEM). The results indicate that the surface grafting reaction was successfully processed in all cases, in which the Ce(IV) shows a much higher initiation activity than that of Cu(III). Then a uniform hydrogel was constructed by mixing poly(triethyl(4-vinylbenzyl)phosphonium chloride-grafted HNTs (HNTs-P(Et-P)) with sodium polyacrylate-grafted HNTs (HNTs-P(AA-Na)), which show desirable antibacterial activity.

我们证明使用超常价过渡金属（Ce（IV）和Cu（III））介导的氧化还原系统用于埃洛石纳米管（HNTs）的表面接枝。按照这种方式，在温和条件下一步一步将常用的乙烯基单体接枝到HNT上。使用FTIR，X射线光电子能谱（XPS）和热重分析（TGA）证明了接枝。通过透射电子显微镜（TEM）仔细地表征了微观形态。结果表明，在所有情况下，表面接枝反应均成功进行，其中Ce（IV）的引发活性远高于Cu（III）。然后通过将聚三乙基（4-乙烯基苄基）氯化phosph接枝的HNTs（HNTs-P（Et-P））与聚丙烯酸钠接枝的HNTs（HNTs-P（AA-Na））混合来构建均匀的水凝胶，