Work

Exploring magnetic kaolinite composite for dye removal in synthetic and environmental water

Year: 2025

Type: conference-paper

Abstract: This preliminary study provides insights into the potential of magnetic kaolinite clay (MKC) composite for practical application in treating dye-contaminated wastewater. The clay composite was synthesised in suspension via the co-precipitation method and further characterised using Fourier-Transform Infrared Spectroscopy (FTIR) and Vibrating Sample Magnetometry (VSM) techniques. Adsorption experiments were conducted in synthetic (deionised) and environmental (tap and drain) water. MKC produced shows strong magnetic susceptibility (14 emu/g) and a preference for Methylene Blue (MB) dye removal compared to Methyl Orange (MO). A 100% removal was recorded at low MB dye concentration (5 mg/L). FTIR analysis further confirms the adhesion of dye towards MKC surface. MKC demonstrated high MB dye removal efficiency (>70%) in environmental water samples. The results suggest that ionic strength, as reflected by the aqueous conductivity properties, may influence the MB-MKC dye interaction. These findings highlight the potential of MKC for practical application in complex, real-world wastewater treatment scenarios.

Source: UiTM Institutional Repositories (Universiti Teknologi MARA)

DOI: 10.24191/mij.v6i2.6245

Authors: Dzulkifly, Nur Zulaika Athirah, Izman, Izzan Salwana, Rusmin, Ruhaida

Institutions: Malaysia Theological Seminary, Universiti Teknologi MARA

Language: English

Topic: Adsorption and biosorption for pollutant removal

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

SDGs: Clean water and sanitation, Responsible consumption and production

Open Access status: green

OpenAlex ID: W7121417012