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A Promising Low Cost Adsorbent Based on Tea-Waste for Confiscation of Crystal Violet Dye

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Title A Promising Low Cost Adsorbent Based on Tea-Waste for Confiscation of Crystal Violet Dye
 
Creator Vithalkar, Sarika H
Jugade, R M
 
Subject Adsorption
Biosorption
Crystal violet
Isotherm studies
Tea-powder waste
 
Description 896-904
The goal of the current study is to eliminate Crystal Violet dye from aqueous solutions because it is one of the refractory
dye molecules that can linger for a long period in the environment and cause hazardous effects. To potentially adsorb Crystal
Violet (CV), a cationic dye from aqueous solution, tea-powder waste (TP) was used. Utilizing FTIR, SEM, EDX, XRD, and
TGA analysis, the pore shape, surface characteristics, thermal stability and crystalline character of TP were evaluated.
Several operating parameters, including contact time, TP dosage, and original CV concentration, point of zero charge
(pHpzc), solution pH and effect of temperature were examined in the adsorption of CV onto TP. Under ideal conditions of pH
5.0 ± 0.2, 30 min of adsorption time and 100 mg of adsorbent dose, dye concentration 100 mg/L, TP was found to have
highest possible adsorption capacity of 200.64 mg g-1. From kinetics of adsorption analysis it was found to follow a kinetic
model of pseudo-second order. The results for CV adsorption onto TP were found to be accurately characterised by the
Langmuir isotherm. Increase in the temperature favoured the adsorption of CV on TP and therefore adsorption process was
proven to be spontaneous and exothermic. Studies on fixed bed columns were also done. Column analysis demonstrated the
TP's applicability to the greater sample volumes. For the elimination of crystal violet from aqueous solution, TP showed
great promise as an adsorbent.
 
Date 2024-02-21T05:46:00Z
2024-02-21T05:46:00Z
2024-02
 
Type Article
 
Identifier 0975-1017 (Online); 0971-4588 (Print)
http://nopr.niscpr.res.in/handle/123456789/63342
https://doi.org/10.56042/ijems.v30i6.4521
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJEMS Vol.30(6) December