Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Graphite-TiO2-Doped Sand Granules for Enhanced Continuous Organic Pollutants Removal via Synergistic Adsorption and Photocatalytic Degradation
This study introduces a unique method for continuously removing methylene blue dye from water using graphite-TiO2-doped sand granules. The granules, coated with graphite and infused with activated carbon (AC) and titanium dioxide (TiO2), were prepared through a process involving titanium isopropoxide (TiP) and polyvinylpyrrolidone. Varying the sand granule weight from 5 to 20 g significantly influenced adsorption capacity, with a notable increase observed up to 10 g. Calcination temperatures more than 500 ℃ had minimal influence on adsorption affinity, highlighting the robust nature of the coated granules. Increasing PVP and TiP quantities enhanced adsorption capacity, with diminishing returns at higher levels. The inclusion of AC particles notably improved the dye removal process, especially under light radiation. Flow rate studies indicated that keeping a flow rate of 4 ml/min·cm2 led to stable and continuous dye removal (90% removal efficiency for 90 min.). On the other hand, when the flow rate was increased to be 8 ml/min·cm2, a linear removal rate (77% in 90 min.), but when the flow rate was kept at 18 ml/min·cm2, an S-shaped adsorption-isotherm, reaching 35% dye removal after 90 min. This innovative strategy for immobilizing graphite and functional materials on silica granules shows promise for sustained organic pollutant removal, demonstrating synergistic adsorption and photocatalytic degradation capabilities.
Graphite-TiO2-Doped Sand Granules for Enhanced Continuous Organic Pollutants Removal via Synergistic Adsorption and Photocatalytic Degradation
This study introduces a unique method for continuously removing methylene blue dye from water using graphite-TiO2-doped sand granules. The granules, coated with graphite and infused with activated carbon (AC) and titanium dioxide (TiO2), were prepared through a process involving titanium isopropoxide (TiP) and polyvinylpyrrolidone. Varying the sand granule weight from 5 to 20 g significantly influenced adsorption capacity, with a notable increase observed up to 10 g. Calcination temperatures more than 500 ℃ had minimal influence on adsorption affinity, highlighting the robust nature of the coated granules. Increasing PVP and TiP quantities enhanced adsorption capacity, with diminishing returns at higher levels. The inclusion of AC particles notably improved the dye removal process, especially under light radiation. Flow rate studies indicated that keeping a flow rate of 4 ml/min·cm2 led to stable and continuous dye removal (90% removal efficiency for 90 min.). On the other hand, when the flow rate was increased to be 8 ml/min·cm2, a linear removal rate (77% in 90 min.), but when the flow rate was kept at 18 ml/min·cm2, an S-shaped adsorption-isotherm, reaching 35% dye removal after 90 min. This innovative strategy for immobilizing graphite and functional materials on silica granules shows promise for sustained organic pollutant removal, demonstrating synergistic adsorption and photocatalytic degradation capabilities.
Graphite-TiO2-Doped Sand Granules for Enhanced Continuous Organic Pollutants Removal via Synergistic Adsorption and Photocatalytic Degradation
Lecture Notes in Civil Engineering
Mansour, Yasser (Herausgeber:in) / Subramaniam, Umashankar (Herausgeber:in) / Mustaffa, Zahiraniza (Herausgeber:in) / Abdelhadi, Abdelhakim (Herausgeber:in) / Ezzat, Mohamed (Herausgeber:in) / Abowardah, Eman (Herausgeber:in) / Khalil, Khalil Abdelrazek (Autor:in) / Barakat, Nasser A. M. (Autor:in)
Proceedings of the International Conference on Sustainability: Developments and Innovations ; 2024 ; Riyadh, Saudi Arabia
17.11.2024
7 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Graphite-TiO<sub>2</sub>-Doped , Sand Granules , Photocatalytic Degradation , Adsorption , Continuous Removal Engineering , Building Construction and Design , Geoengineering, Foundations, Hydraulics , Sustainable Architecture/Green Buildings , Engineering Economics, Organization, Logistics, Marketing , Energy Policy, Economics and Management , Renewable and Green Energy
| British Library Online Contents | 2019
Photocatalytic Degradation of Organic Pollutants: A Review
| British Library Online Contents | 2013