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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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功能化磁性fe3o4纳米粒子用于含cu2+废水的净化
DOI: doi:10.3969/j.issn.1671-7627.2012.06.020, PP. 97-101
Keywords: fe3o4,aptes,吸附,cu2+
Abstract:
采用共沉淀法制备超顺磁性fe3o4纳米粒子(spion),并通过硅烷化在spion粒子表面引入3-氨丙基三乙氧基硅烷(aptes),制得氨基化磁性纳米粒子(fe3o4-nh2),比较改性前后spion对于重金属离子cu2+的吸附,分别考察吸附溶液的ph和cu2+初始质量浓度(ρ)对吸附效果的影响。结果表明:吸附量均随溶液ph和ρ的升高而增加,在ph为5时达到最大吸附量,ρ为5g/l时均达到吸附平衡,fe3o4和fe3o4-nh2吸附量分别为12.49和103.41mg/g。
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