Adsorption of dimethyl disulfide onto activated carbon cloth

Authors: FİRDEVS MERT, NUMAN HODA, AYHAN TOPUZ, LEYLA BUDAMA AKPOLAT, EMRAH EROĞLU

Abstract: Dimethyl disulfide (DMDS) has a specific unpleasant odour and is profoundly toxic with an odour threshold of around 7-12 ppb. In this study, the removal of DMDS was investigated by adsorption on activated carbon cloth (ACC) in the gas phase. Kinetics and isotherm studies were performed. Adsorption kinetics followed by GC-MS and the data were processed using different models. When correlation coefficients (R²) of linear regression analysis are analyzed, it is seen that the concordance of experimental data to the pseudo-second-order equation is quite good. Isotherm data have been examined using Freundlich, Temkin and Langmuir models. The regression coefficient (R²) of data to fit the Langmuir model is 0.9993, which means that the fit is very good. The monolayer adsorption capacity (q_m) of DMDS has been calculated as 118 mL.g^-1 according to the Langmuir model.

Keywords: Activated carbon cloth, adsorption, isotherms, adsorption kinetics, dimethyl disulfide

Full Text: PDF