中文摘要：

以自制球形纤维素珠体-AN-AM接枝共聚物MSCB为载体，通过液相还原法负载零价铁和纳米氢氧化镁，制备出负载型还原性球形纤维素吸附剂MS-ZIM，考察了零价铁及氧化镁质量的影响。结果表明，当MSCB用量为2.0 g， m（ MSCB）：m（Fe）=1：1， m（MS-ZI）：m（MgO）=5：1时，制得的吸附剂含水率为88.3％，粒径主要分布在1.2～1.6 mm的范围内，比表面积为358.2 m2／g。利用ESEM、 EDS、 ICP、 FT-IR进行表征，证实MSCB表面成功负载了零价铁和纳米氢氧化镁， Fe元素含量为21.4％， Mg元素含量为2.98％。

英文摘要：

A loaden reductive spherical cellulose adsorbent , denoted as MS-ZIM, was prepared using the graft copolymerization of acrylonitrile and acrylamide （MSCB） as carrier and zero-valent Fe and nano Mg （OH）2 as loaden materials, by adopting aqueous reducing technique , and the effect of the dosages of zero-valent Fe and nano Mg （ OH） 2 was studied.The results showed that the adsorbent with 88.3%of moisture content , 1.2 to 1.6 mm of particle size range , 358.2 m2/g of specific surface area could be obtained under the optimal conditions , i.e., 2.0 g of MSCB dosage , 1：1 of the mass ratio of MSCB and Fe as well as 5：1 of the mass ratio of MS-ZI and MgO.The characterization results of ESEM, EDS, ICP and FT-IR validated that zero-valent Fe and nano Mg（OH）2 were successfully loaded on MSCB , and Fe element content and Mg element content was 21.4%and 2.98%respectively.