使用六角化作为吸附剂去除模型污染的地下水中的三价离子
Byung-Moon Jun1, Deokhwan Kim2, Jaegwan Shin3
1Radwaste Management Center, Korea Atomic Energy Research Institute (KAERI), 111 Daedeok-Daero 989beon-gil, Yuseong-Gu, Daejeon, 34057, Republic of Korea.
Chemosphere
|June 6, 2024
概括
六角化 (h-BN) 有效地从污染的地下水中去除重金属. 这项研究证明了h-BN.
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 化学 化学
背景情况:
- 地下水的重金属污染对环境和健康构成重大风险.
- (III) 是工业废水和地下水中普遍存在的有毒重金属污染物.
- 有效和可持续的整治技术对于处理受污染的水源至关重要.
研究的目的:
- 评估使用六角化 (h-BN) 作为吸附剂,从模型污染的地下水中去除 (III) 的可行性.
- 为了研究h-BN在各种条件下的吸附性能,包括暴露时间,pH,co-ion和酸.
- 阐明吸附机制并评估h-BN在Cr(III) 整治中的可重复使用性.
主要方法:
- 吸附实验是使用模拟污染的地下水,加Cr{III) 的模型进行的.
- 使用了包括富里埃变换红外光谱和X射线光电子光谱在内的特征化技术.
- 系统评估了吸附能力,实验参数的影响和吸附剂的可重复使用性.
主要成果:
- 优化的h-BN对Cr (III) 的最大吸附能力为177mg/g.
- 吸附性能在很大程度上不受常见背景离子 (K +,Mg2 +) 的影响,高达1000mg/L.
- 在酸的存在下,吸附能力得到改善,h-BN在五个循环中证明了可重复使用性.
结论:
- 六角化是一种高效且实用的吸附剂,用于地下水中的Cr (III) 处理.
- 该研究提供了关于h-BN在现实条件下的吸附机制和性能的宝贵见解.
- 在水处理应用中,h-BN为重金属整治提供了一个有前途的可持续解决方案.
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