A prepared biosorbent from corn husk for the removal of crystal violet dye from aqueous solution

Name: Ornanong Aekkaphong

Organization : Burapha University. Faculty of Science

Name: Chutima Yoothong

Organization : Burapha University. Faculty of Science

Name: Ratiwun Suwattanamala

Organization : Burapha University. Faculty of Public Health

Name: Akapong Suwattanamala

Organization : Burapha University. Faculty of Science

Email : akapong@go.buu.ac.th

keyword: Biosorption

LCSH: Dyes and dyeing

; Corn husks

LCSH: Gentian violet

LCSH: Corn -- Effect of water pollution on

LCSH: Sewage -- Purification

Abstract: In this work, the potential and efficiency of usage corn husks, obtained as an agricultural waste byproduct from harvesting, as an affordable biosorbent for the removal of crystal violet (CV), a cationic dye used in dyeing of cotton, wood, and silk, from aqueous solution has been studied. The pre-treated biosorbents were prepared under the presence of three different concentration of sulfuric acid (98%, 75% and 50% by weight) and compared with untreated biosorbents as a reference. To investigate the surface morphology and potential interaction between the biosorbent and CV dye, the biosorbents were characterized by SEM and FTIR spectroscopy techniques. The effects of contact time, initial dye concentration (10-50 mg/L) and biosorbent dosage (0.10-0.30 g) on dye sorption tests were systemically carried out to determine the optimal conditions by batch experiments. The result showed that as the contact time and initial dye concentration increased, the adsorption capacity also increased, whereas an increasing in adsorbent dosage resulted to a decrease in adsorption capacity. The adsorption process could be well fitted by the pseudo-second-order kinetic model with r2 value of 0.999, reaching the equilibrium at 120 min, and the calculated activation energy was 46.45 kJ/mol. The isotherm of the adsorption equilibrium data was found to be best followed by the Langmuir model. This research indicated that corn husk waste is an effective, low-cost, eco-friendly biological adsorbent, presenting a new sustainable alternative for crystal violet removal in industrial wastewater treatment

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2024

Modified: 2024-11-28

Issued: 2024-11-28

บทความ/Article

application/pdf

BibliograpyCitation : In Kasetsart University. Faculty of Science. The Pure and Applied Chemistry International Conference 2024 (PACCON 2024) (pp.344-350). Bangkok : Kasetsart University, 2024

eng

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