The influence of activating agents on the performance of rice husk-based carbon for sodium lauryl sulfate and chrome (Cr) metal adsorptions

11th Joint Conference on Chemistry in Conjunction with the 4th Regional Biomaterials Scientific Meeting

材料科学;化学;生物科学

Arneli^1 ; Safitri, Z.F.^1 ; Pangestika, A.W.^1 ; Fauziah, F.^1 ; Wahyuningrum, V.N.^1 ; Astuti, Y.^1

Department of Chemistry, Science and Mathematics Faculty, Diponegoro University, Central Java

50275, Indonesia^1

关键词: Activating agents;    Active carbon;    Adsorption capacities;    High adsorption capacity;    High temperature;    Metal adsorption;    Organic molecules;    Room and high temperatures;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/172/1/012007/pdf
DOI  :  10.1088/1757-899X/172/1/012007

来源: IOP

【 摘 要 】

This research aims to study the influence of activating agents to produce rice husk based-carbon with high adsorption capacity and efficiency for either hazardous organic molecules or heavy metals which are unfriendly for the environment. Firstly, rice husk was burned by pyrolysis at different temperatures to produce rice husk-based carbon. To improve its ability as an adsorbent, carbon was treated with activating agents, namely, H3PO4and KOH at room and high temperature (420 °C). The performance of carbon was then tested by contacting it with surfactant (SLS). Finally, the surfactant-modified active carbon was applied for chrome metal removal. The result shows that activation of carbon using phosphate acid (H3PO4) was more effective than potassium hydroxide (KOH) conducted at high temperature to adsorb sodium lauryl sulfate (SLS) and chrome metal with the adsorption capacity 1.50 mgg-1and 0.375 mgg-1, respectively.