使用PET废物衍生的活性碳从水性废水中可持续地去除狄克洛芬:基于实验和模拟的过程优化
Amanda R de S Araujo1, Daniela R da Costa1, Diego Diniz1
1Department of Chemical Engineering, Centro Universitário FEI, Av. Humberto de Alencar Castelo Branco, 3972 São Bernardo do Campo, São Paulo, Brazil.
ACS omega
|February 9, 2026
概括
来自聚乙烯二甲酸的活性炭有效地从废水中去除二二二. 酸激活产生了优异的吸附,在最佳条件下实现了高的去除效率.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 像二甲这样的药物污染了水源.
- 从废水中有效地去除药品对于环境保护至关重要.
- 从废物中开发可持续吸附剂是一个活跃的研究领域.
研究的目的:
- 从聚乙烯二甲 (PET) 合成活性炭,以去除二二.
- 为了研究不同活性剂 (KOH,ZnCl2,H3PO4) 的疗效.
- 通过使用性能最佳的吸附剂来确定废水处理的最佳条件.
主要方法:
- 从PET中合成活性碳,使用KOH,ZnCl2和H3PO4.
- 吸附实验,以评估二二的去除效率.
- 扫描电子显微镜 (SEM) 用于表面形态分析.
- 布鲁努埃尔-埃梅特-泰勒 (BET) 分析用于确定表面积.
- 动力和同热模型,以了解吸附机制.
主要成果:
- 激活H3PO4的结果是活性炭的表面积 (542.97 m2/g) 和孔隙大小 (15.3-120 nm) 最高.
- 最佳的H3PO4激活比率 (2:1) 产生了 34.06 毫克/克的高吸附能力的二.
- 在最佳条件下 (25°C25分钟) 的吸附能力可以达到估计的200mg/g.
- SEM和BET分析证实了多孔结构和大表面积,与高吸附性能相关.
结论:
- 来自PET的活性炭,特别是当它与H3PO4激活时,是一种有前途的吸附剂,用于去除二二.
- 优化条件提高了吸附能力,表明了工业废水处理的潜力.
- 这项研究表明了废物利用和污染物修复的可持续方法.
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