Modification of Activated Carbon for the Adsorption of Humic Acid

被引：21
|
作者：
Eustaquio, H. M. B. [1 ,2 ]
Lopes, Christian W. [2 ]
da Rocha, Rafael S. [2 ]
Cardoso, Brena D. [2 ]
Pergher, Sibele B. C. [2 ]
机构：
[1] Univ Fed Rio Grande do Norte, Lab Peneira Mol LABPEMOL, BR-59078970 Natal, RN, Brazil
[2] Univ Fed Rio Grande do Norte, Programa Posgrad Ciencia & Engn Mat PPGCEM, BR-59078970 Natal, RN, Brazil
来源：
ADSORPTION SCIENCE & TECHNOLOGY | 2015年 / 33卷 / 02期
关键词：
LAYERED DOUBLE HYDROXIDE; AQUEOUS-SOLUTION; REMOVAL; SUBSTANCES; ADSORBENT; KINETICS; WATER;
D O I：
10.1260/0263-6174.33.2.117
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Commercial activated carbon treated with sulphuric and phosphoric acids was used to remove humic acids (HAs) from water. To achieve this goal, the iodine indices of treated and untreated materials were characterized by X-ray diffraction and nitrogen physisorption. Adsorption assays for HAs evaluated the quantities adsorbed after a fixed time. Temporal evolution of HA adsorption was determined from the adsorption kinetics. Experimental results indicated that the sulphuric acid treatment was more efficient and had a higher HA adsorption at each time point evaluated. Evaluating the specific area helped to verify this fact, reflecting the number of mesopores in the used material.
引用
收藏
页码：117 / 126
页数：10
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