Utilization of Multiwalled Carbon Nanotubes as Adsorbent for Removal of Acid Violet 17 Dye: Equilibrium, Kinetics and Thermodynamic Studies
Abstract
The adsorption capacity and separation efficiency of multiwalled carbon nanotube (MWCNT) were investigated for the removal of Acid Violet 17 (AV 17) dye in an aqueous solution. The effect of reaction conditions, such as contact time, AV 17 initial concentration, pH, adsorbent dosage, and temperature, on the adsorption capacity of MWCNTs was investigated. It was found that a contact time of 180 min, an adsorbent dosage of 0.8 g/L, and 100 mg/L AV 17 concentration are ideal conditions for maximum adsorption capacity (119.45 mg/g). AV 17 dye adsorption on MWCNTs followed a pseudo-second-order kinetic model (R2 = 0.9998) and the Langmuir isotherm model (R2 = 0.9813) suggesting that adsorption was the uniform and homogenous process. The maximum adsorption capacity from the Langmuir isotherm model was determined to be 322.58 mg/g. Adsorption of AV 17 dye was determined to be spontaneous and thermodynamically favorable since the values of ΔGo were negative. Positive ΔH° and ΔS° values suggest that the process is endothermic and randomness. The research results showed the MWCNTs could be used successfully to remove dye for the water treatment process.
Keywords
Multiwalled carbon nanotube, Acid violet 17, Adsorption, Adsorption mechanism
Supporting Institution
Yok.
Ethical Statement
Etik beyan gerekmiyor.
References
- [1] Saleem M., Pirzada T., Qadeer R., Sorption of Some Azo-Dyes on Wool Fiber from Aqueous Solutions, Colloids Surf. A: Physicochem. Eng. Asp., 260 (1–3) (2005) 183–188.
- [2] Saleem M., Pirzada T., Qadeer R., Sorption of Acid Violet 17 and Direct Red 80 Dyes on Cotton Fiber from Aqueous Solutions, Colloids Surf. A: Physicochem. Eng. Asp., 292 (2–3) (2007) 246–250.
- [3] Jain S.N., Gogate P.R., Adsorptive Removal of Acid Violet 17 Dye from Wastewater Using Biosorbent Obtained from NaOH and H2SO4 Activation of Fallen Leaves of Ficus racemosa, J. Mol. Liq., 243 (2017) 132–143.
- [4] Kodavatiganti S., Bhat A.P., Gogate P.R., Intensified Degradation of Acid Violet 7 Dye using Ultrasound Combined with Hydrogen Peroxide, Fenton, and Persulfate, Sep. Purif. Technol., 279 (2021) 119673.
- [5] Jain S.N., Shaikh Z., Mane V.S., Vishnoi S., Mawal V.N., Patel O.R., et al., (2019) Nonlinear Regression Approach for Acid Dye Remediation Using Activated Adsorbent: Kinetic, Isotherm, Thermodynamic and Reusability Studies, Microchem J., 148 (2019) 605–615.
- [6] Üstün-Odabaşı S., Utilizing Sustainable Hemp Biomass as an Eco-Friendly for Potentially Toxic Elements Removal from Water, Mater. Res. Express, 11 (2) (2024) 025104.
- [7] Şentürk İ., Alzein M., Adsorption of Acid Violet 17 onto Acid-Activated Pistachio Shell: Isotherm, Kinetic and Thermodynamic Studies, Acta Chim. Slov., 67(1) (2020) 55–69.
- [8] Jain S.N., Gogate P.R., Adsorptive Removal of Acid Violet 17 Dye from Wastewater using Biosorbent Obtained from NaOH and H2SO4 Activation of Fallen Leaves of Ficus Racemosa, J. Mol. Liq., 243 (2017) 132–143.
- [9] Thinakaran N., Baskaralingam P., Pulikesi M., Panneerselvam P., Sivanesan S., Removal of Acid Violet 17 from Aqueous Solutions by Adsorption onto Activated Carbon Prepared from Sunflower Seed Hull, J. Hazard. Mater., 151 (2) (2008) 316–322.
- [10] Gupta V.K., Agarwal S., Bharti A.K., Sadegh H., Adsorption Mechanism of Functionalized Multi-Walled Carbon Nanotubes for Advanced Cu (II) Removal, J. Mol. Liq., 230 (2017) 667–673.