Sunlight-activated composite TiO2-F-V-Mo materials for photodegradation of the organic pollutant methylene blue
F-doped TiO2 photocatalyst materials were prepared using solid-state and sol-gel synthesis with varying weight percentages of LiF or NH4F. Subsequently, molybdate and vanadium oxide were added to the prepared powders to create composite photocatalysts with reduced bandgap energy, enhancing light abs...
Saved in:
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-11-01
|
| Series: | Heliyon |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844024165206 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850065506665496576 |
|---|---|
| author | Ahmad Kassas Batoul Dhaini Israa Zahwa Ramez Zayyat Ali Shaito Bassam Hussein Mohamed Mouyane Jérôme Bernard David Houivet Joumana Toufaily |
| author_facet | Ahmad Kassas Batoul Dhaini Israa Zahwa Ramez Zayyat Ali Shaito Bassam Hussein Mohamed Mouyane Jérôme Bernard David Houivet Joumana Toufaily |
| author_sort | Ahmad Kassas |
| collection | DOAJ |
| description | F-doped TiO2 photocatalyst materials were prepared using solid-state and sol-gel synthesis with varying weight percentages of LiF or NH4F. Subsequently, molybdate and vanadium oxide were added to the prepared powders to create composite photocatalysts with reduced bandgap energy, enhancing light absorption in the visible region of the spectrum, which is essential for effective photocatalytic activity using sunlight. The synthesized powders were characterized by thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and specific surface area using the BET method. The crystallization and anatase-to-rutile phase transformation of the powders were verified by X-ray diffraction (XRD), and the composite nanoparticles were further investigated by transmission electron microscopy (TEM). The photocatalytic activity of the F-doped commercial TiO2, sol-gel synthesized TiO2, and prepared composite powders was evaluated through the photocatalytic degradation of methylene blue (MB) in water under ultraviolet (UV), UV–visible, and sunlight irradiation. The results indicated that the incorporation of Molybdenum and Vanadium significantly influenced the photocatalytic efficiency by substantially reducing the bandgap of this composite photocatalyst. The LiF-doped TiO2 powders synthesized by sol-gel using TTIP, and doped with vanadium and molybdenum, activated by sunlight, exhibited high performance in MB degradation compared to commercial TiO2 and undoped synthesized TiO2 powders, achieving an optimal degradation rate of 7.26 × 10⁻⁹ mol per gram of photocatalyst. |
| format | Article |
| id | doaj-art-0dbb0b8dcad44b2c8fa1278059955cde |
| institution | DOAJ |
| issn | 2405-8440 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj-art-0dbb0b8dcad44b2c8fa1278059955cde2025-08-20T02:48:58ZengElsevierHeliyon2405-84402024-11-011022e4048910.1016/j.heliyon.2024.e40489Sunlight-activated composite TiO2-F-V-Mo materials for photodegradation of the organic pollutant methylene blueAhmad Kassas0Batoul Dhaini1Israa Zahwa2Ramez Zayyat3Ali Shaito4Bassam Hussein5Mohamed Mouyane6Jérôme Bernard7David Houivet8Joumana Toufaily9International University of Beirut, School of Engineering, Department of Industrial Engineering, Beirut, Lebanon; Laboratory of Materials, Catalysis, Environment, and Analytical Methods (MCEMA), EDST, Lebanese University, Hadath, Beirut, Lebanon; Corresponding author. International University of Beirut, School of Engineering, Department of Industrial Engineering, Beirut, Lebanon.Laboratory of Materials, Catalysis, Environment, and Analytical Methods (MCEMA), EDST, Lebanese University, Hadath, Beirut, LebanonLaboratory of Materials, Catalysis, Environment, and Analytical Methods (MCEMA), EDST, Lebanese University, Hadath, Beirut, Lebanon; Laboratoire Universitaire des Sciences Appliquées de Cherbourg (LUSAC), EA 4253, Université de Caen -Normandie, BP 78, 50130, Cherbourg-en-Cotentin, FranceAmerican University of Beirut, Department of Civil and Environmental Engineering, Lebanon; Lebanese International University, School of Engineering, Department of Mechanical Engineering, Beirut, LebanonLebanese International University, School of Engineering, Department of Mechanical Engineering, Beirut, LebanonLebanese International University, School of Engineering, Department of Industrial Engineering, Beirut, LebanonLaboratoire Universitaire des Sciences Appliquées de Cherbourg (LUSAC), EA 4253, Université de Caen -Normandie, BP 78, 50130, Cherbourg-en-Cotentin, FranceLaboratoire Universitaire des Sciences Appliquées de Cherbourg (LUSAC), EA 4253, Université de Caen -Normandie, BP 78, 50130, Cherbourg-en-Cotentin, FranceLaboratoire Universitaire des Sciences Appliquées de Cherbourg (LUSAC), EA 4253, Université de Caen -Normandie, BP 78, 50130, Cherbourg-en-Cotentin, FranceLaboratory of Materials, Catalysis, Environment, and Analytical Methods (MCEMA), EDST, Lebanese University, Hadath, Beirut, LebanonF-doped TiO2 photocatalyst materials were prepared using solid-state and sol-gel synthesis with varying weight percentages of LiF or NH4F. Subsequently, molybdate and vanadium oxide were added to the prepared powders to create composite photocatalysts with reduced bandgap energy, enhancing light absorption in the visible region of the spectrum, which is essential for effective photocatalytic activity using sunlight. The synthesized powders were characterized by thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and specific surface area using the BET method. The crystallization and anatase-to-rutile phase transformation of the powders were verified by X-ray diffraction (XRD), and the composite nanoparticles were further investigated by transmission electron microscopy (TEM). The photocatalytic activity of the F-doped commercial TiO2, sol-gel synthesized TiO2, and prepared composite powders was evaluated through the photocatalytic degradation of methylene blue (MB) in water under ultraviolet (UV), UV–visible, and sunlight irradiation. The results indicated that the incorporation of Molybdenum and Vanadium significantly influenced the photocatalytic efficiency by substantially reducing the bandgap of this composite photocatalyst. The LiF-doped TiO2 powders synthesized by sol-gel using TTIP, and doped with vanadium and molybdenum, activated by sunlight, exhibited high performance in MB degradation compared to commercial TiO2 and undoped synthesized TiO2 powders, achieving an optimal degradation rate of 7.26 × 10⁻⁹ mol per gram of photocatalyst.http://www.sciencedirect.com/science/article/pii/S2405844024165206TiO2-LiFNanoparticlesPhotocatalytic activitySunlight irradiationWater treatment |
| spellingShingle | Ahmad Kassas Batoul Dhaini Israa Zahwa Ramez Zayyat Ali Shaito Bassam Hussein Mohamed Mouyane Jérôme Bernard David Houivet Joumana Toufaily Sunlight-activated composite TiO2-F-V-Mo materials for photodegradation of the organic pollutant methylene blue Heliyon TiO2-LiF Nanoparticles Photocatalytic activity Sunlight irradiation Water treatment |
| title | Sunlight-activated composite TiO2-F-V-Mo materials for photodegradation of the organic pollutant methylene blue |
| title_full | Sunlight-activated composite TiO2-F-V-Mo materials for photodegradation of the organic pollutant methylene blue |
| title_fullStr | Sunlight-activated composite TiO2-F-V-Mo materials for photodegradation of the organic pollutant methylene blue |
| title_full_unstemmed | Sunlight-activated composite TiO2-F-V-Mo materials for photodegradation of the organic pollutant methylene blue |
| title_short | Sunlight-activated composite TiO2-F-V-Mo materials for photodegradation of the organic pollutant methylene blue |
| title_sort | sunlight activated composite tio2 f v mo materials for photodegradation of the organic pollutant methylene blue |
| topic | TiO2-LiF Nanoparticles Photocatalytic activity Sunlight irradiation Water treatment |
| url | http://www.sciencedirect.com/science/article/pii/S2405844024165206 |
| work_keys_str_mv | AT ahmadkassas sunlightactivatedcompositetio2fvmomaterialsforphotodegradationoftheorganicpollutantmethyleneblue AT batouldhaini sunlightactivatedcompositetio2fvmomaterialsforphotodegradationoftheorganicpollutantmethyleneblue AT israazahwa sunlightactivatedcompositetio2fvmomaterialsforphotodegradationoftheorganicpollutantmethyleneblue AT ramezzayyat sunlightactivatedcompositetio2fvmomaterialsforphotodegradationoftheorganicpollutantmethyleneblue AT alishaito sunlightactivatedcompositetio2fvmomaterialsforphotodegradationoftheorganicpollutantmethyleneblue AT bassamhussein sunlightactivatedcompositetio2fvmomaterialsforphotodegradationoftheorganicpollutantmethyleneblue AT mohamedmouyane sunlightactivatedcompositetio2fvmomaterialsforphotodegradationoftheorganicpollutantmethyleneblue AT jeromebernard sunlightactivatedcompositetio2fvmomaterialsforphotodegradationoftheorganicpollutantmethyleneblue AT davidhouivet sunlightactivatedcompositetio2fvmomaterialsforphotodegradationoftheorganicpollutantmethyleneblue AT joumanatoufaily sunlightactivatedcompositetio2fvmomaterialsforphotodegradationoftheorganicpollutantmethyleneblue |