从化物改性酸盐中去除DOM可以改善水溶液中的Cu2+吸附能力
Rushi Yang1, Shi Feng2, Danyu Jin3
1School of Energy and Environment, Anhui University of Technology, Maanshan, 243002, China; School of Environmental Science and Engineering, Qingdao University, Qingdao, 266071, China.
Chemosphere
|September 18, 2023
概括
基于的溶解有机物 (DOM) 显著影响铜 (Cu) 去除效率. 化物修饰增强了酸盐的特性,通过提高孔隙性和功能组,提高了Cu吸附能力.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 水处理 处理水的方法
背景情况:
- 基于碳化合物的溶化有机物 (DOM) 行为和组成影响废水吸附中的铜 (Cu) 去除效率.
- 了解这些相互作用对于开发有效的水处理策略至关重要.
研究的目的:
- 研究化物修饰 (ZnCl2,FeCl3,SnCl4) 对酸盐特性及其随后对Cu2+吸附的影响.
- 分析DOM从改性水炭中释放的动态和成分.
主要方法:
- 使用化盐 (ZnCl2,FeCl3,SnCl4) 来从中生产炭,然后通过DOM去除以获得洗的炭 (WHC).
- 对DOM释放动态的分析和化合物特性 (多孔性,SSA,功能组) 的表征.
- 使用吸附实验和XPS分析对原始水炭 (PHC) 和WHC的Cu2+吸附的研究.
主要成果:
- 化物修改改善了WHC的多孔性,特定表面积 (SSA) 和功能组.
- DOM的数量和组成 (Ar-P,Fa-L) 受到化物修饰和释放时间的显著影响.
- 与PHC相比,WHC上的Cu2+吸附能力显著增加,与SSA和DOM释放相关 (Fa-L,Ar-P).
结论:
- 基于碳化合物的DOM含量和成分是Cu2+吸附效率的关键驱动因素.
- 化物改性水炭为废水中Cu2+的去除提供了更高的性能.
- 该研究强调了定制的化碳改造对有效重金属整治的潜力.
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