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一种新的功能化石墨烯氧化物膜,可有效去除和快速检测水中的

Qianli He¹, Xue Li¹, Weiwei Chai¹

¹Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, and Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China.

Journal of hazardous materials

|February 10, 2024

概括

一种新的功能化石墨烯氧化物 (GDYO-3M) 膜在一小时内有效地从大量水中去除超过97%的 (Hg II). 这种吸附剂还可以使灵敏的,便携式的检测.

科学领域:

材料科学材料科学材料科学
环境科学环境科学
分析化学分析化学

背景情况:

使用纳米材料有效地从水中去除 (Hg (II)) 提出了重大挑战.
现有的方法往往缺乏速度,简单性或环境修复的有效性.
需要选择性和可重复使用的吸附剂来捕获.

研究的目的:

开发一种新的功能化石墨烯氧化物 (GDYO-3M) 膜,以有效地去除Hg.
研究GDYO-3M膜的选择性,可重复使用性和检测能力.
建立一个绿色和快速的方法来处理和分析.

主要方法:

功能化石墨烯氧化物 (GDYO-3M) 膜的制造.
基于过的测试Hg (II) 清除效率和容量.
对与其同时存在的金属离子进行选择性测试.
吸附-脱附循环测试的可重复性.
作为能量分散式X射线光谱 (ED-XRF) 分析的丰富材料的应用.

主要成果:

在1小时内,GDYO-3M膜从10升以上的水 (>0.1 mg/L Hg) 中获得了超过97%的Hg清除效率.
由于 -SH 组,对Hg (II) 与其他 14 种金属离子具有很好的选择性.
在9个吸附-脱附周期后保持超过95%的去除效率,这表明可重复使用性很高.
使用ED-XRF在15分钟内达到0.2μg/L的Hg (II) 的检测极限 (LOD).

结论:

GDYO-3M膜是一种高效,选择性和可重复使用的吸附剂,用于从水中去除.
该材料为环境整治提供了一个有希望的绿色和有效的解决方案.
膜作为一个有效的预度工具,用于快速和敏感地检测水中的.

关键词:

吸附方式吸附方式吸附方式通过ED-XRF检测检测.石墨烯氧化物石墨烯氧化物水星水星水星水星水星水水水水水,这是一个很好的方法.

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