制备硫自我剂的煤基吸附剂及其对Cu2的吸附性能
Dengke Lei1, Shulei Li2, Lihui Gao3
1School of Chemical Engineering & Technology, China University of Mining and Technology, Xuzhou, 22116, China.
Environmental science and pollution research international
|October 26, 2023
概括
高硫炭被转化为硫自吸附吸附剂,以消除铜污染. 这种新型材料对煤炭利用和环境修复都有希望.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 吸附科学 吸附科学
背景情况:
- 高硫煤 (HSC) 提出了利用方面的挑战.
- 水溶液中的铜污染是一个日益严重的环境问题.
研究的目的:
- 从HSC开发一种新的吸附剂,用于去除铜离子.
- 研究开发材料的吸附机制和吸附能力.
主要方法:
- 高硫炭和ZnCl2在850°C下在60分钟内被烧解.
- 进行了吸附实验,以评估铜离子的去除.
- 用Sips和伪二阶模型分析了吸附动力学和异热量.
主要成果:
- 一种硫自吸附的煤基吸附剂 (HSC@ZnCl2) 已成功合成.
- 吸附过程是内热的,自发的,并遵循Sips的异热和伪二次运动模型.
- 对Cu2+的最大吸附能力达到11.97 mg/g.
结论:
- 吸附机制涉及复合,静电吸引,表面沉 (ZnS) 和氧化还原反应.
- 硫自吸附的煤基吸附剂为HSC利用和铜修复提供了可行的途径.
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