STUDY ON THE ADSORPTION CAPACITY OF ORANGE METHYLENE ON ACTIVATED CARBON PREPARED FROM SOYBEAN RESIDUE
Overview
Abstract:
Methyl orange (MO) is one of the dyes of the azo family used in the
textile industry, printing, paper production... Recently, scientists have
discovered its pollution and harm to the ecological environment and
humans, especially this compound has the potential to cause cancer for
users. This paper focus on the adsorption of (MO) in aqueous solution
on carbon prepared from soybean residue (TBD). The experiments
were conducted using the following parameters: TBD mass is 0.05g/25
mL, shaking speed is 200 rounds/minute, equilibrium time is 120
minutes at room temperature (25 ± 1
0C); pH is best 3. Mass TBD
needed for MO adsorption is best at 0.05 g/25mL of MO solution. In
the temperature range of 298 - 323K, the values of ΔGo
< 0; ΔHo
= -
122.99 kJ/mol implicates that the process is self-inflicted and
exothermic. According to the Langmuir adsorption isotherm model, the
maximum adsorption capacity of TBD for MO was determined to be
153.85 mg/g at 298K. The results of this study will be useful for the
future expansion of low-cost activated carbon raw materials for dye
removal in industrial wastewater
Keyword(s): Adsorption Orange methylene Activated carbon Soybean residue Zinc chloride
Pages (from-to) | 23-30 |
Journal | TNU Journal of Science and Technology |
Volume | 227 |
Issue number | 11 |
Publication status | Published - Aug-2022 |
ISBN | 1859-2171 |