Adsorption behaviour of bromophenol blue from the aqueous solution on Labeo bata fish scale, a bio-waste material

processed protein-rich scales of Labeo bata fish have been characterized as cycloid pattern from the scanning electron and atomic force microscopic images. The scales when used for the bromophenol blue (BPB) adsorption from aqueous phases show the good BPB removal performance at pH 4.8 (± 0.1). The...

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Bibliographic Details
Published inIndian journal of chemical technology Vol. 26; no. 4; p. 321
Main Authors Ghosh, Abir, Biswas, Hari Shankar, Debnath, Sushanta, Sasikumar, Palani, Biswas, Krishna, Ghosh, Uday Chand
Format Journal Article
LanguageEnglish
Published New Delhi Publications and Information Directorate, Council on Scientific and Industrial Research 01.07.2019
Subjects
Adsorption
Aqueous solutions
Atomic force microscopy
Bromophenol blue
Cycloids
Data acquisition
Electrostatic properties
Fish
Kinetic equations
Labeo bata
pH effects
Scales
Temperature dependence
Waste materials
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Summary:processed protein-rich scales of Labeo bata fish have been characterized as cycloid pattern from the scanning electron and atomic force microscopic images. The scales when used for the bromophenol blue (BPB) adsorption from aqueous phases show the good BPB removal performance at pH 4.8 (± 0.1). The kinetic data acquired at that pH fits well both with the pseudo-second order and the Weber-Morris kinetic equations. Arrhenius activation energy (Ea = 4.20 kJ. mol-1) as well as temperature dependent kinetic parameter (A = 75.56 g. mg-1. min-1) which are estimated indicate the facile BPB adsorption. The data of adsorption equilibriums describe the Freundlich model very well. Thermodynamics shows that the BPB adsorption by the fish scale is spontaneous (∆G0 = negative, ∆H0 = -21.49 kJ. mol-1 and ∆S0 = + 27.75 J.mol-1.K-1). The BPB adsorption by the tested fish scale has taken place with electrostatic mechanism.
ISSN:0971-457X
0975-0991