Adsorption of Crystal Violet Dye from Aqueous Solution Using Activated Carbon Prepared from Flamboyant (Delonix regia) Pods
Description
This dataset supports the article “Adsorption of Crystal Violet Dye from Aqueous Solution Using Activated Carbon Prepared from Flamboyant (Delonix regia) Pods.” Activated carbon was prepared from flamboyant pod waste and used as an adsorbent to remove crystal violet (CV) dye from aqueous solution. Batch adsorption experiments were carried out at the Bioenvironmental, Water and Engineering Research Group (BWERG) Laboratory, Ladoke Akintola University of Technology (LAUTECH), Ogbomoso, Nigeria. Residual dye concentrations were measured by UV-Vis spectrophotometry. The dataset contains: UV-Vis calibration curve data for crystal violet Raw absorbance and concentration data from the batch experiments Removal efficiency and adsorption capacity (q<sub>e</sub>) values [Effects of pH, adsorbent dose, contact time and initial dye concentration] Isotherm, kinetic and mass transfer model fits, with the calculated parameters Data are provided in [Excel (.xlsx)] format.
Files
Steps to reproduce
Flamboyant (Delonix regia) pods were washed, dried, crushed and sieved. The material was then carbonised and chemically activated to produce activated carbon, which was washed to a neutral pH, dried and stored. A crystal violet stock solution was prepared in distilled water and diluted to the working concentrations. A calibration curve was built by measuring the UV-Vis absorbance of standard solutions. Batch adsorption experiments were run by mixing a known mass of activated carbon with a fixed volume of dye solution and shaking it. The effects of pH, adsorbent dose, contact time and initial dye concentration were tested one at a time. After each run, the carbon was separated and the residual dye concentration was measured by UV-Vis spectrophotometry. Removal efficiency and adsorption capacity were calculated from the initial and equilibrium concentrations. The data were then fitted to isotherm, kinetic and mass transfer models.
Institutions
- Ladoke Akintola University of TechnologyOyo State, Ogbomoso