☆ 4.6 Article

Adsorption of chromotrope dye onto activated carbons obtained from the seeds of various plants: Equilibrium and kinetics studies

ARABIAN JOURNAL OF CHEMISTRY (2017)

Journal

ARABIAN JOURNAL OF CHEMISTRY

Volume 10, Issue -, Pages S2225-S2233

Publisher

ELSEVIER SCIENCE BV

DOI: 10.1016/j.arabjc.2013.07.058

Keywords

Adsorption Chromotrope (CH); Aamla seed carbon (ASC); Jambul seed carbon (JSC); Tamarind seed carbon (TSC); Soapnut carbon (SNC); Commercial activated carbon (CAC)

Ask authors/readers for more resources

Protocol

Community support

Reagent

Community support

Abstract

The use of low-cost, easily obtained and eco-friendly adsorbents has been employed as an ideal alternative to the current expensive methods of removing dyes from wastewater. This study investigates the potential use of activated carbons such as aamla seed carbon (ASC), jam-bul seed carbon (JSC), tamarind seed carbon (TSC) and soapnut carbon (SNC) for the removal of chromotrope (CH) dye from simulated wastewater. The obtained results were compared with that of Commercial Activated Carbon (CAC). The effects of different system variables, adsorbent dosage, pH and particle size were studied. The results showed that as the amount of the adsorbent increased, the amount adsorbed per unit mass decreased accordingly. Optimum pH value for dye adsorption was determined as similar to 2.0. The adsorption of chromotrope fit well into pseudo-second-order rate equation. The adsorption also obeyed Langmuir and Redlich-Peterson equations better than Temkin, Freundlich and Dubinin-Radushkevich (D-R) equations. The adsorption capacities of low cost adsorbents were found to be in the following order ASC > JSC > TSC > SNC. The activated carbons prepared were characterized by FT-IR and SEM analysis. (c) 2013 Production and hosting by Elsevier B.V.

Authors

I am an author on this paper

Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.6

Not enough ratings

Secondary Ratings

Novelty

Significance

Scientific rigor

Rate this paper

Adsorption of Methylene blue and Methyl orange on tamarind seed activated carbon and its composite with chitosan: equilibrium and kinetic studies

Abdul Samad Kamdod, Malladi V. Pavan Kumar

Summary: This study investigated the adsorption performance of tamarind seed biomass activated carbon (TSAC) and chitosan-modified TSAC composite (CHS-TSAC) for the removal of methylene blue (MB) and methyl orange (MO) dyes. The optimal pH values for both adsorbents were found to be 10 for MB and 3 for MO. TSAC exhibited a maximum adsorption capacity of 142.12 mg/g for MB, while CHS-TSAC showed a maximum adsorption capacity of 94.45 mg/g for MO. The Langmuir isotherm model and pseudo-second-order kinetics provided the best fit for equilibrium adsorption data and adsorption kinetics, respectively. The regeneration studies demonstrated that there was no significant loss in adsorption capacity after three adsorption-desorption cycles.

DESALINATION AND WATER TREATMENT (2022)