基于回收的环氧板的活性碳及其对甲基色的吸附
Wenfeng Zhu1, Jiacheng He2, Qianxi Wang2
1State Key Laboratory of Oil and Gas Equipment, Tubular Goods Research Institute, China National Petroleum Corporation, Xi'an 710077, China.
Polymers
|June 27, 2024
概括
从电子垃圾中丢弃的环氧树脂被转化为活性炭以进行甲基色吸附. 这种可持续的方法产生高吸附能力,通过废物回收利用提供环境和经济效益.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 废物管理 废物管理
背景情况:
- 电子废物,特别是废弃的电路板,构成了一个重要的非可降解废物挑战.
- 环氧树脂是电路板的常见组成部分,是有价值材料的潜在前体.
研究的目的:
- 从废弃的环氧树脂中制备活性炭 (AC).
- 为了研究准备的AC对甲基色的吸附性能.
- 探索废物回收和经济效益的潜力.
主要方法:
- 使用逐步碳化和激活方法将环氧树脂转化为AC.
- 进行了吸附实验,以研究甲基色去除的动力学和同热量.
- 计算了热力学参数,包括变化.
主要成果:
- 准备好的AC呈现出粗的碳结构,具有石墨和无形特征以及含氧组.
- 吸附遵循了准二次运动模型,平衡吸附达到41.051 mg/g.
- 吸附等热量与兰迈尔模型保持一致,在不同温度下显示和吸附量为23.137,30.358和37.202 mg/g.
- 证实了内热物理吸附过程 (ΔH = 17.30 KJ/mol).
结论:
- 来自废物环氧树脂的活性炭是有效的甲基色去除.
- 这种方法为电子废物管理和资源回收提供了可持续的解决方案.
- 该过程显示出减少污染和产生经济价值的巨大潜力.
相关概念视频
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