以十二烷基苯磺酸钠为表面活性剂,柠檬酸为催化剂,在硝酸镍存在下间苯二酚和甲醛经过溶胶-凝胶反应、还原气体保护下碳化处理得到球状碳气凝胶基磁性吸附材料.采用x射线衍射、扫描电子显微镜、磁力测试、粒径分析对所制备磁性吸附材料进行了表征,结果表明:材料的磁性能优良,比饱和磁化强度和矫顽力分别为17emu/g、124 Oe,颗粒分布均匀,均值约5 μm.通过原子吸收测试表明:材料对重金属离子pb2+的饱和吸附容量可达62.5 mg/g.
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