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用dimercaprol修饰的半孔二氧化纳米颗粒,有效地从水溶液中去除有毒离子

Madhappan Santhamoorthy^1,2, Suresh Ranganathan³, Lesly Fathima Arul Sigamani⁴

¹School of Chemical Engineering, Yeungnam University, Gyeongsan, 38544, Republic of Korea.

Environmental geochemistry and health

|August 28, 2024

概括

一种新型的二聚卡改性纳米粒子 (MSN-DT NPs) 从受污染的水中选择性吸附离子. 这种可回收的吸附剂有效地去除,为环境修复提供了一个有前途的解决方案.

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:

半孔二氧化纳米粒子 (MSN) 是吸附的多功能材料.
(Hg2+) 污染对环境和健康构成重大风险.
开发选择性和高效的吸附剂来去除重金属至关重要.

研究的目的:

为选择性吸附离子合成和表征二聚醇修饰的半孔性纳米粒子 (MSN-DT NPs).
评估开发的吸附剂的吸附能力,选择性和可回收性.

主要方法:

使用四乙烯正酸盐 (TEOS) 和波洛克萨米尔的Sol-gel凝结.
纳入3 - 甘酸 propyl 三氧化 (GPTS) 和二氧化 (DM) 单体.
使用XRD,FT-IR,N2吸附-溶解,SEM,TEM,TG和泽塔电位分析进行表征.
使用金属离子 (Hg2+,Pb2+,Ni2+,Fe2+,Zn2+) 混合物的吸附实验.

主要成果:

在MSN-DT NP中,离子具有选择性吸附.
125mg/g的高吸附能力和Hg2+的~90%的去除效率.
吸附剂显示出良好的可回收性,在0.1M HCl处理的5个周期中保持有效性.

结论:

合成的MSN-DTNP是有效的选择性去除危险的离子从水溶液.
该材料的高吸附能力,选择性和可重复使用性使其成为环境修复的可行选择.
这项研究强调了表面修饰的纳米颗粒在解决重金属污染方面的潜力.

关键词:

迪默卡普罗尔 (Dimercaprol) 是一种金属吸附吸附方式可回收的可回收性选择性吸附是一种选择性吸附.纳米颗粒是一种.表面的修改是表面的修改.

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