Decolorization of Textile Wastewater Using Fabricated Poly Acrylonitrile (PAN) Nanoparticles | ||
| Journal of Environmental Sciences. Mansoura University | ||
| Article 1, Volume 47, Issue 3.4, June 2018, Pages 75-87 PDF (1.73 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/joese.2018.158198 | ||
| Authors | ||
| Omnya A El-Batrawy* 1; Mahmoud S Ibrahim1; Hala Fakhry1, 2; M. R. El-Aassar2 | ||
| 1Environmental Sciences Department, Faculty of Science, Damietta University, New Damietta City, Damietta, 34517, Egypt | ||
| 2Polymer Materials Research Department, Advanced Technology and New Materials Researches Institute, City of Scientific Researches and Technological Applications, New Borg El-Arab City, Alexandria, 21934 Egypt. | ||
| Abstract | ||
| Water contamination is not only influence human health and environment, but it has also effects on social and economic costs. Textile wastewater is considered to be one of the most dangerous types of water contaminants as it consists of mixture of pigments, dyes and different types of organic contaminants. Nanotechnology offers novel functional materials in the area of wastewater treatment especially dye removal. Polyacrylonitrile (PAN) nanoparticles considered to be one of the most promising prepared materials in the field of dye removal. PAN nanoparticles was prepared by precipitation polymerization technique in an alcoholic aqueous solution (water: ethanol) and was characterized using scanning electron microscope (SEM), Fourier Transfer infrared spectrophotometer (FT-IR) and Thermal Gravimetric Analysis (TGA). Basic Red 46 (BR 46) dye is a cationic dye which is used as a model of contaminant due to its extensive use in textile industry. The processing parameters affecting on the adsorption of BR 46 onto the prepared PAN nanoparticles have been optimized through a batch mode experiments. The maximum removal percentage of the selected dye was 62.4 % recorded after 240 min equilibrium time using 0.05 g from PAN nanoparticles and with 5 ppm initial dye concentration. As the experimental results proved that the increment in material dosage from 0.01 to 0.5 g enhanced the dye removal percentage from 43.6% up to 85%. Meanwhile, the improvement in initial dye concentrations had negative impact on the adsorption process onto the prepared powdered material, as it decreased from 82.3 to 11.85% when the initial dye concentration increased from 1-100 ppm. The dye adsorption mechanism was investigated through the application of Langmuir and Freundlich isotherm models on the experimental data. Moreover, the kinetics of dye adsorption process was tested using the pseudo-first and pseudo-second order kinetic models. | ||
| Keywords | ||
| Dye removal; Basic Red 46; Batch Mode Experiments; Adsorption isotherm; Kinetic Models | ||
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