Fe3O4 magnetic nano-particles and attapulgite(ATP)nano-rods were modified with γ-methacryloxypropyl trimethoxy si-lane(KH-570). Acrylic acid monomers were then in-situ graft polymerized onto the modified Fe3 O4 magnetic nano-particles and ATP nano-rods through the bridge of KH-570 to obtain Fe3 O4/PAA/ATP nanocomposite magnetic microgels,which was used as ad-sorbent to remove Pb(Ⅱ)from water. Its adsorption kinetics and adsorption isotherm were studied in this paper.%用γ-甲基丙烯酰氧基丙基三甲氧基硅烷(KH-570)对纳米Fe3 O4磁性粒子和凹凸棒黏土纳米棒晶进行表面改性,通过KH-570的桥接,在纳米Fe3 O4磁性粒子和凹凸棒纳米棒晶的表面原位接枝聚合丙烯酸单体,制备Fe3 O4/PAA/ATP纳米复合磁性微凝胶.将该复合微凝胶用作吸附剂,处理水体中的Pb(Ⅱ),研究其对Pb(Ⅱ)的吸附动力学和吸附热力学.
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