Preparation of waste tea activated carbon using potassium acetate as an activating agent for adsorption of Acid Blue 25 dye
287 citations recorded by the source corpus.
Abstract Waste tea activated carbon (WTAC) was prepared through chemical activation with a novel activating agent, potassium acetate and used for the sorption of Acid Blue 25 (AB25) dye. Batch adsorption studies were carried out with the consideration of factors such as initial dye concentration (50–350 mg/L), temperature (30, 40, 50 °C), contact time and initial pH (2–12). This was done to enable the determination of kinetics and isotherms behaviour. Langmuir, Freundlich, Temkin and Dubinin–Radushkevich (D–R) isotherm models were tested and the adsorption of AB25 dye on WTAC was best fitted to Langmuir and the maximum monolayer of WTAC was 203.34 mg/g. Pseudo-second order kinetic model was found to adequately describe the adsorption process. The adsorbent, WTAC gave 97.88% adsorption of AB25 dye.
Subfields: Analytical Chemistry, Water Science and Technology
View Paper: https://www.semanticscholar.org/paper/fbc9a91691cce57b18f7fb49ab3da49a70012327
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Analytical Chemistry
In Water Science and Technology
Citations in the corpus
- Adsorption of Brilliant Green dye from aqueous solution onto red clay (2013, background): “However, the degree of heterogeneity of adsorbent surface increases when the value of 1/n approaches zero [3].”
- Methods for preparation and activation of activated carbon: a review (2020, background): “Under optimal conditions, the adsorption of opposite charges in the solution of both potassium acetate and water leads to the formation of new compounds such as KOH from the hydrolysis of metal ions (Auta and Hameed 2011b).”
- Waste tea as a novel adsorbent: a review (2018, methodology): “Additionally, Auta and Hameed (2011a) focused their work on the optimization of process conditions in the production of activated carbon from spent tea leaves for the adsorption of cationic and anionic dyes by using response surface methodology.”