Removal of Copper(II) Ions in Aqueous Solutions Using Tannin-Rich Plants as Natural Bio-Adsorbents

4th International Conference on Advanced Engineering and Technology

Paksamut, J.^1 ; Boonsong, P.^1

Department of Social and Applied Science, College of Industrial Technology, King Mongkut's University of Technology North Bangkok, Bangkok

10800, Thailand^1

关键词: Adsorption behavior;    Adsorption capacities;    Batch techniques;    Bio-adsorbents;    Bioadsorbent;    Contact time;    Copper ions;    Optimum pH;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/317/1/012058/pdf
DOI  :  10.1088/1757-899X/317/1/012058

来源: IOP

【 摘 要 】

In this study, the purpose of our interest is to investigatethe adsorption behavior of copper (II) ions in aqueous solution using some tannin-rich plants as natural bio-adsorbents such as mangosteen peels (Garciniamangostana L.), cassava leaves (Manihotesculenta Crantz) and Thai copper pod leaves (Sennasiamea (Lam.)) as powder form in different dosage of adsorbent plant materials.The adsorption capacities at different pH of solution and contact time were performed.All the experiments in this studywere chosen at room temperature by batch technique. From the experimental results showed that cassava leaves gave better adsorbent properties than mangosteen peels and Thai copper pod leaves. The increasing dosage of all adsorbents and contact time have been found to increase adsorption capacities. In this respect, the adsorption capacities depend crucially on the adsorbents and contact time. The optimum pH of copper (II) ions adsorption was pH4. According to this work, it was observed that bioadsorbent materials from tannin-rich plants could be used to remove copper (II) ions from aqueous solutions.