文献类型：专利

英文题名：Magnetically separable core shell structured mesoporous adsorbent used for separating heavy metal ion in wastewater, comprises ferroferric oxide inner particles, mesoporous silicon oxide outer layer and compact silicon oxide middle layer

作者：SHI J;ZHAO W

机构：[1]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN101733065-A

申请日：2008-11-21

公开日：2010-06-16

语种：英文

收录：DERWENT

摘要：NOVELTY - A magnetically separable core shell structured mesoporous adsorbent comprises ferroferric oxide particles as inner particles; mesoporous silicon oxide as outer layer; and a layer of compact silicon oxide as middle layer between the inner particles and the mesoporous layer. USE - Magnetically separable core shell structured mesoporous adsorbent used for separating heavy metal ion in wastewater, including mercury ion (Hg2+), lead ion (Pb2+), cadmium ion (Cd2+), zinc ion (Zn2+) and copper ion (Cu2+) (claimed). ADVANTAGE - The adsorbent has high filter separation and centrifugal separation efficiencies at low cost, and is simple to use. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the heavy metal ion adsorbent, comprising: (A) synthesizing alpha -ferric oxide (Fe2O3) particles; (B) wrapping the compact silicon oxide middle layer; (C) wrapping the mesoporous silicon oxide layer; and (D) reducing the inner particles into magnetic ferroferric oxide particles.