Indian jujuba seed powder as an eco-friendly and a low-cost biosorbent for removal of acid blue 25 from aqueous solution

L. Sivarama Krishna, A. Sreenath Reddy, Wan Zuhairi Wan Yaacob, Mohd. Raihan Taha, A. Varada Reddy

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Indian jujuba seed powder (IJSP) has been investigated as a low-cost and an eco-friendly biosorbent, prepared for the removal of Acid Blue 25 (AB25) from aqueous solution. The prepared biomaterial was characterized by using FTIR and scanning electron microscopic studies. The effect of operation variables, such as IJSP dosage, contact time, concentration, pH, and temperature on the removal of AB25 was investigated, using batch biosorption technique. Removal efficiency increased with increase of IJSP dosage but decreased with increase of temperature. The equilibrium data were analyzed by the Langmuir and the Freundlich isotherm models. The data fitted well with the Langmuir model with a maximum biosorption capacity of 54.95 mg g-1. The pseudo-second-order kinetics was the best for the biosorption of AB25 by IJSP, with good correlation. Thermodynamic parameters such as standard free energy change (ΔG0), standard enthalpy changes (ΔH0), and standard entropy changes (ΔS0) were analyzed. The removal of AB25 from aqueous solution by IJSP was a spontaneous and exothermic adsorption process. The results suggest that IJSP is a potential low-cost and an eco-friendly biosorbent for the AB25 removal from synthetic AB25 wastewater.

Original languageEnglish
Article number184058
JournalScientific World Journal
Volume2014
DOIs
Publication statusPublished - 2014

Fingerprint

Powders
Seed
Seeds
aqueous solution
seed
Costs and Cost Analysis
Biosorption
acid
cost
Costs
Temperature
Entropy
Biocompatible Materials
Fourier Transform Infrared Spectroscopy
Waste Water
enthalpy
Thermodynamics
Free energy
Adsorption
entropy

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Environmental Science(all)
  • Medicine(all)

Cite this

Indian jujuba seed powder as an eco-friendly and a low-cost biosorbent for removal of acid blue 25 from aqueous solution. / Krishna, L. Sivarama; Reddy, A. Sreenath; Wan Yaacob, Wan Zuhairi; Taha, Mohd. Raihan; Reddy, A. Varada.

In: Scientific World Journal, Vol. 2014, 184058, 2014.

Research output: Contribution to journalArticle

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AU - Taha, Mohd. Raihan

AU - Reddy, A. Varada

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