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A platform for research: civil engineering, architecture and urbanism
Simultaneous Removal of Methylene Blue and Hexavalent Chromium From Water Using TiO2/Fe(III)/H2O2/Sunlight
The objective of the present work was the simultaneous removal of methylene blue (MB) and hexavalent chromium from water using the combined system TiO2/Fe(III)/solar. The comparison between the three processes, i.e., iron cycle (Fe(III)/solar), photocatalytic reactions (TiO2/solar), and the combined system (TiO2/Fe(III)/solar) for single and simultaneous removal cases was investigated. The results show that only the TiO2/Fe(III)/solar system ensures a complete simultaneous removal. A total simultaneous removal of Cr(VI) and MB at a concentration of 30 ppm for each substrate was achieved under natural sunlight within 5 h by the use of 0.16 g/L of TiO2 and 40 ppm of Fe(III). The effects of concentration ratio of substances, solution pH and the presence of H2O2 in the combined system were investigated. Finally, based on the obtained results, a removal pathway of both pollutants by TiO2/Fe(III)/H2O2/solar system was proposed. This fast synergistic combined system is a significant option for both oxidation and reduction reactions.
Simultaneous Removal of Methylene Blue and Hexavalent Chromium From Water Using TiO2/Fe(III)/H2O2/Sunlight
The objective of the present work was the simultaneous removal of methylene blue (MB) and hexavalent chromium from water using the combined system TiO2/Fe(III)/solar. The comparison between the three processes, i.e., iron cycle (Fe(III)/solar), photocatalytic reactions (TiO2/solar), and the combined system (TiO2/Fe(III)/solar) for single and simultaneous removal cases was investigated. The results show that only the TiO2/Fe(III)/solar system ensures a complete simultaneous removal. A total simultaneous removal of Cr(VI) and MB at a concentration of 30 ppm for each substrate was achieved under natural sunlight within 5 h by the use of 0.16 g/L of TiO2 and 40 ppm of Fe(III). The effects of concentration ratio of substances, solution pH and the presence of H2O2 in the combined system were investigated. Finally, based on the obtained results, a removal pathway of both pollutants by TiO2/Fe(III)/H2O2/solar system was proposed. This fast synergistic combined system is a significant option for both oxidation and reduction reactions.
Simultaneous Removal of Methylene Blue and Hexavalent Chromium From Water Using TiO2/Fe(III)/H2O2/Sunlight
Djellabi, Ridha (author) / Ghorab, Mohamed Fouzi (author) / Sehili, Tahar (author)
2017-06-01
7 pages
Article (Journal)
Electronic Resource
English
| American Chemical Society | 2023
Optimizing Hexavalent Chromium Removal in Italy
| Wiley | 2024
Optimizing Hexavalent Chromium Removal in Italy
| Wiley | 2024