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Bisacodyl removal from contaminated solution by synthesized mesoporous silica using experimental design method
Mohammad Hossien Salmani1, Mohammad Hassan Ehrampoush2, Mehdi Mokhtari2
1Department of Environmental Health Engineering, School of Public Health, Faculty of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Islamic Republic of Iran.
AMB Express
|September 12, 2018
Summary
Synthesized mesoporous silica effectively removes bisacodyl from wastewater. This study optimized conditions, achieving 84% removal, demonstrating its potential for treating pharmaceutical-polluted water.
Area of Science:
- Environmental Chemistry
- Materials Science
- Adsorption Science
Background:
- Pharmaceutical compounds persist in wastewater, posing environmental risks.
- Mesoporous silica offers tunable properties for selective compound adsorption.
- Bisacodyl is a common pharmaceutical pollutant in municipal wastewater.
Purpose of the Study:
- To synthesize and evaluate mesoporous silica for bisacodyl removal.
- To optimize adsorption parameters for efficient bisacodyl removal.
- To investigate the adsorption kinetics and isotherm models for bisacodyl removal.
Main Methods:
- Mesoporous silica synthesized via a simple chemical method using tetraethylorthosilicate.
- Scanning electron microscopy (SEM) for material characterization.
- Batch adsorption experiments optimized using Design of Experiments (DOE) for parameters like contact time, pH, and adsorbate dose.
- Bisacodyl concentration measured using UV-Vis spectrophotometry.
Main Results:
- Optimized conditions yielded 84% bisacodyl removal.
- Adsorption process followed Langmuir isotherm and second-order kinetic models (R² > 0.99).
- Mesoporous silica demonstrated high efficiency in removing bisacodyl from polluted solutions.
Conclusions:
- Synthesized mesoporous silica is a highly efficient adsorbent for bisacodyl.
- This material shows promise for wastewater treatment applications targeting pharmaceutical contaminants.
- The study provides a viable method for mitigating bisacodyl pollution in water bodies.
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