通过带铁的煤炭气化渣复合材料去除水性和
Zheng Leng1, Changzhi Zhou1, Hong Hou1
1State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
Toxics
|June 26, 2024
概括
含铁气化废渣复合材料 (Fe-GFS) 有效吸附和. Fe-GFS对有较高的亲和力和对净化水的潜力.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 水的化学 水的化学
背景情况:
- (As(V)) 和 (Sb(V)) 是有毒的金属化物,对水质构成风险.
- 开发有效的吸附剂来去除As (V) 和Sb (V) 对于环境修复至关重要.
研究的目的:
- 为了研究As(V) 和Sb(V) 在带铁的气化渣复合材料 (Fe-GFS) 上的吸附.
- 阐明吸附机制并评估Fe-GFS在水处理方面的潜力.
主要方法:
- 进行了批量吸附实验,以确定吸附能力和同时存在的离子的影响.
- 福利埃变换红外光谱法 (FTIR) 和X射线光电子光谱法 (XPS) 用于分析吸附机制.
主要成果:
- 在pH值3.0下,Fe-GFS对 (V) (34.99 mg/g) 的吸附能力高于对 (V) (27.61 mg/g) 的吸附能力.
- 同时存在的Sb ((V) 影响了As ((V) 的吸附,而As ((V) 则始终抑制了Sb ((V) 的吸附.
- FTIR和XPS分析表明Sb-O和As-O键的形成以及Fe-OH键在吸附后的减少.
结论:
- Fe-GFS 显示出有效吸附 As(V) 和 Sb(V,对 As(V) 有较强的亲和力.
- 该研究表明,Fe-GFS具有显著的潜力,作为一种具有成本效益的吸附剂,用于从污染水中去除有毒金属化物.
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