磁性永久封闭微粒阵列用于处理疏水性有机化合物污染的处理
Peng Wang1, Qihui Shi, Yifeng Shi
1Bren School of Environmental Science and Management, and Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, USA.
Journal of the American Chemical Society
|December 6, 2008
概括
磁性永久封闭微粒阵列 (Mag-PCMAs) 可有效地去除疏水性有机化合物 (HOCs). 这些可重复使用的吸附剂在受污染的介质和土壤清洗应用中表现出高性能.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 纳米技术纳米技术
背景情况:
- 疏水性有机化合物 (HOCs) 构成重大环境风险.
- 有效的吸附剂材料对于修复受污染的介质至关重要.
- 现有的吸附剂可能会遭受物质损失和有限的可重复使用性.
研究的目的:
- 为了合成和描述磁性永久封闭微粒阵列 (Mag-PCMAs).
- 评估Mag-PCMAs在从受污染的介质中去除各种HOC的有效性.
- 为了证明Mag-PCMAs在土壤洗中的可重复使用性和应用.
主要方法:
- 核心/外结构合成:Fe(3) O(4) 微粒被/表面活性剂混合层覆盖.
- 表面活性剂 (TPODAC) 与二氧化框架的共价结合,用于永久的菌封闭.
- 对代表性高合物 (atrazine,diuron,naphthalene,biphenyl) 的吸附异温和运动研究.
- 对于二氨酸去除的再生和可重复使用性测试,包括土壤洗实验.
主要成果:
- -PCMAs成功地与永久定的表面活性剂细胞进行了合成.
- 观察到高吸附能力和快速动力学测试的HOCs.
- 马格-PCMAs表现出优异的再生和可重复使用性,用于去除二.
- 证明了从受污染的土壤中有效地去除二氨,证明了它的实际应用.
结论:
- 磁PCMA是高效的,可重复使用的吸附剂,用于HOC去除.
- 永久的微粒封闭确保了吸附剂的稳定性,并避免了表面活性剂的漏.
- 磁PCMA显示了环境修复应用的巨大潜力,包括土壤洗.
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