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水性不敏感弹药化合物被石墨烯纳米颗粒吸附

Luke A Gurtowski¹, Sheila J McLeod², Sarah Grace Zetterholm²

¹U S Army Engineer Research and Development Center (ERDC) Environmental Laboratory, 3909 Halls Ferry Road, Vicksburg, MS 39180, USA; Department of Civil and Environmental Engineering, Vanderbilt University, PMB 351831, 2301 Vanderbilt Place, Nashville, TN 37235-1831, USA.

Journal of hazardous materials

|October 15, 2024

概括

石墨烯纳米板块 (GnPs) 有效地从水中去除不敏感的弹药 (IM) 化合物. 基提供快速吸附和高容量,特别是DNAN,呈现出一个有前途的环境处理技术.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.

背景情况:

不敏感的弹药 (IM) 化合物对环境构成风险.
对于IM配方,需要可持续的缓解策略.
石墨烯纳米板块 (GnPs) 正在探索吸附性去除.

研究的目的:

研究GNP对IM化合物 (DNAN,NTO,NQ,MeNQ) 的吸附性去除.
描述GNP,并评估与颗粒活性炭 (GAC) 相比的吸附性能.
确定环境因素 (pH,离子强度,温度) 对吸附的影响.

主要方法:

GnPs的表征 (表面积,粒子大小,泽塔潜力).
使用GNP和GAC的IM化合物的吸附动力学和异温学研究.
系统变化的pH值,离子强度和温度.

主要成果:

对于IM化合物,GNP的吸附动力学比GAC更快.
GnPs显示出更高的DNAN去除能力,归因于π-π相互作用.
由于表面积更大,GAC的整体吸附能力更高;pH和离子强度影响了GNP上的NTO吸附.

结论:

核酸是一种有前途的技术,用于处理IM污染的水.
特定的相互作用,如π-π,增强GnP效率的化合物,如DNAN.
本研究介绍了使用GNP对MeNQ的第一个环境处理方法.

关键词:

吸附方式吸附方式吸附方式石墨烯是一种石墨烯.不灵敏的弹药没有灵敏的弹药.纳米技术纳米技术

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