使用性聚变从煤灰中合成石及其在去除重金属中的应用
1Department of Sanitary Engineering, Kielce University of Technology, Aleja Tysiąclecia Państwa Polskiego, 7, 25-314 Kielce, Poland.
Materials (Basel, Switzerland)
|July 14, 2023
概括
从煤炭飞灰 (CFA) 合成的石材料有效地去除了像,和这样的重金属. 这些热石显示出作为可负担的吸附剂的潜力,用于环境修复.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 无机化学 无机化学
背景情况:
- 煤炭飞灰 (CFA) 是一种工业副产品,有可能合成有价值的材料.
- 石是结晶性酸,在吸附和离子交换方面具有应用.
- 水中的重金属污染对环境和健康构成重大风险.
研究的目的:
- 通过性聚变从CFA合成泽奥利特材料.
- 为了研究合成参数对热带石形成的影响.
- 为了评估从水溶液中合成的化石的重金属去除效率.
主要方法:
- 性融合方法用于从CFA中合成热带石.
- 布鲁努埃尔-埃梅特-泰勒 (BET) 分析用于特定表面积的确定.
- 用于测量表面积的 (N2) 吸附.
- 对于重金属 (Ni2+,Cd2+,Pb2+) 的去除,进行批量吸附实验.
- 兰慕尔和弗洛因德利希的异热模型用于吸附数据分析.
- 吸附动力学的伪二阶动力模型.
主要成果:
- 索达莱特是所有合成的石材料中占主导地位的晶体相.
- 合成的化石证明了有效地去除Ni2+,Cd2+和Pb2+离子.
- 吸附数据最适合兰格穆尔等温和和伪二次运动模型,表明化学吸附.
- 使用BET分析进行了特定表面积的表征.
结论:
- 从CFA合成的石材料是重金属的有效吸附剂.
- 合成的热石为废水处理提供了一个有希望的,低成本的替代品.
- 优化的合成参数可以产生适合重金属修复的材料.
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