Treatment of Dyes Contaminated Water Using Biochar Derived from Eucalyptus Wood Waste

Ren Y.S. Seilkhan A. Akbota B. Zhang S. Xu J. Khan H. Ilyas M.
September 2024 Engineered Science Publisher

ES Materials and Manufacturing
2024 #25

In the present study, water-soluble dyes like methylene blue (MB) and crystal violet (CV) were extracted from aqueous solutions utilizing eucalyptus wood biochar (EWB) produced from eucalyptus wood waste (EWW). EWW was carbonized at 450 ^oC to form EWB, which was then activated by the addition of zinc chloride (ZnCl2). Characterizations of the EWB were done using scanning electron micrograph (SEM), Fourier Transform Infrared Spectroscopy (FT-IR), and surface area studies. Optimized conditions resulted in a maximum adsorption of MB of 14.42 mg/g and CV of 12.95 mg/g over EWB. Adsorption of both dyes on EWB was shown to follow the Langmuir adsorption isotherm model and occurred through pseudo 2^nd order kinetics, according to kinetic and isotherm studies. According to several thermodynamic parameters, such as ∆G^o, ∆H^o, and ∆S^o, the adsorption of dyes onto EWB was an endothermic and spontaneous process. The results of the study suggest that EWB might be a useful adsorbent for removing MB and CV from wastewater.

Adsorption , Biochar , Dyes , isotherm study , Kinetic , Water treatment

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School of Economics and Management, Jilin Jianzhu University, Chang Chun, 130117, China
Educational Program, Geography, Environment and Service Sector, Abai Kazakh National Pedagogical University, Almaty, 01000, Kazakhstan
Biomedical Research Centre, Al-Farabi Kazakh National University, Al-Farabi ave. 71, 050040, Kazakhstan
Environmental Building, Jiangwan Campus, Fudan University, No. 2205 Songhu Road, Yangpu District, Shanghai, 200433, China
Institute for Advanced Studies, Universiti Malaya, Kuala Lumpur, 50603, Malaysia
Department of Environmental Sciences, University of Peshawar, Khyber Pakhtunkhwa, Peshawar, 44000, Pakistan
Department of Environmental Sciences, Shaheed Benazir Bhutto University, Wari Campus, Dir Upper, Khyber Pakhtunkhwa, 44000, Pakistan

School of Economics and Management
Educational Program
Biomedical Research Centre
Environmental Building
Institute for Advanced Studies
Department of Environmental Sciences
Department of Environmental Sciences

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