全氟辛酸
吸附
化学
活性炭
环境化学
碳纤维
有机化学
材料科学
复合数
复合材料
作者
Jeongwoo Shin,Byungryul An
出处
期刊:Chemosphere
[Elsevier]
日期:2024-04-11
卷期号:357: 142025-142025
被引量:1
标识
DOI:10.1016/j.chemosphere.2024.142025
摘要
A new adsorbent based on commercial granular activated carbon (GAC) and loaded with Cu(II) (GAC-Cu) was prepared to enhance the adsorption capacity of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS). The surface area (SA) and pore volume of GAC-Cu decreased by ∼15% compared to those of pristine GAC. The scanning electron microscopy-energy dispersive spectrometry (SEM-EDS) and leaching test results indicated that, compared with GAC, the Cu atomic ratio and Cu amount in GAC-Cu increased by 2.91 and 2.43 times, respectively. The point of zero charge (PZC) measured using a salt addition method obtained a pH of 6.0 (GAC) and 5.0 (GAC-Cu). According to the isotherm models obtaining highest coefficient of determination (R
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