Related Experiment Video
Updated: Aug 14, 2026
08:23
Analyzing the Photo-oxidation of 2-propanol at Indoor Air Level Concentrations Using Field Asymmetric Ion Mobility Spectrometry
Published on: June 14, 2018
Adsorption kinetics of methyl violet onto perlite
1Department of Chemistry, Faculty of Science and Literature, Balikesir University, 10100 Balikesir, Turkey. mdogan@balikesir.edu.tr
Chemosphere
|April 11, 2003
Summary
This study investigated methyl violet adsorption on perlite, finding it
Area of Science:
- Environmental Science
- Materials Science
- Physical Chemistry
Background:
- Methyl violet is a common industrial dye.
- Perlite is an abundant volcanic glass with potential adsorbent properties.
- Effective dye removal from wastewater is crucial for environmental protection.
Purpose of the Study:
- To investigate the adsorption kinetics and activation parameters of methyl violet onto perlite.
- To determine the influence of process variables on dye adsorption efficiency.
- To elucidate the adsorption mechanism and rate-limiting steps.
Main Methods:
- Kinetic studies were performed to analyze adsorption rates.
- The effects of contact time, initial dye concentration, temperature, and pH were systematically varied.
- Activation parameters were calculated using Arrhenius and Eyring equations.
Main Results:
- Adsorption kinetics followed a first-order reaction with respect to dye concentration.
- The calculated activation energy was 13.2 kJ mol(-1), indicating diffusion-controlled adsorption.
- Adsorption capacity increased with higher contact time, initial dye concentration, temperature, and pH.
Conclusions:
- Perlite demonstrates effective adsorption of methyl violet.
- The adsorption process is primarily governed by diffusion.
- Optimizing process parameters enhances methyl violet removal efficiency.
