Enhanced photodegradation toward graphene–based MgFe2O4–TiO2: Investigation and optimization

Viet, Thieu Quang Quoc; Phong, Ha Huu Tan; Thinh, Doan Ba; Giang, Nguyễn Thị Hương; Dat, Nguyen Minh; Hải, Nguyễn Duy; Phong, Mai Thanh; Hieu, Nguyen Huu

doi:10.1016/j.ijhydene.2022.07.119

Cited by 6 publications

(1 citation statement)

References 30 publications

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“…11c. 93,94 On the other hand, the rate of the malachite green dye degradation increased rapidly by increasing the catalyst dose and then remained almost constant in the range of 23.5-43.5 mg of the catalyst. 95 4.1.1.4 Effect of irradiation light intensity.…”

Section: Degradation Of Organic Pollutantsmentioning

confidence: 99%

Recent progress in semiconductor/graphene photocatalysts: synthesis, photocatalytic applications, and challenges

2023

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Section: Degradation Of Organic Pollutantsmentioning

confidence: 99%

Recent progress in semiconductor/graphene photocatalysts: synthesis, photocatalytic applications, and challenges

2023

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Graphene-Based Photocatalysts: Properties and Characterization for Photocatalytic Applications

Tayel,

Ramadan

2024

Advanced Structured Materials

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Synergistic photocatalytic degradation of methylene blue using TiO2 composites with activated carbon and reduced graphene oxide: a kinetic and mechanistic study

Farghaly,

Maher,

Gad

et al. 2024

Appl Water Sci

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This comprehensive study explored the removal of methylene blue (MB) from aqueous solutions as a model pollutant, utilizing solar-driven photocatalysis with nano-sized titanium dioxide (TiO2) and composites with activated carbon (AC) and reduced graphene oxide (RGO). This research introduces continuous solar reactor instead of conventional batch experiments investigating its design configuration. Utilizing response surface methodology (RSM), the study determined the optimal process conditions (MB concentration at 30 mg/L, pH 8.82, irradiation time 138 min), under which TiO2 achieved a 93.13% MB removal efficiency. The study further revealed that the integration of TiO2 with AC and RGO (5% wt.) significantly enhanced the MB photocatalytic degradation. The TiO2/AC composite achieved 98.3% MB degradation in 138 min of solar exposure, related to its large specific surface area of 146 m2/g and a pore volume of 0.439 cm3/g. Likewise, the TiO2/RGO composite demonstrated 97% removal with a surface area of 102 m2/g and a pore volume of 0.476 cm3/g, significantly better than nano-TiO2. Additionally, the research investigated the role of the solar reactor configuration on MB removal. Using 26 mm Pyrex tube diameter with 15 cm long on parabolic aluminum concentrator inclined at 30° optimally achieved the peak MB degradation efficiency. Recyclability tests shown a noticeable decrease in nano-TiO2 efficiency to 56.03% without regeneration; however, after regeneration following the third cycle, the efficiency significantly recovered to 70.07%. Thereby, this paper introduces an innovative, continuous, and well-designed solar reactor system for dye removal, employing nano-TiO2 and its composites with AC and RGO for improved photocatalytic efficiency under statistically optimized process conditions.

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Enhanced photodegradation toward graphene–based MgFe2O4–TiO2: Investigation and optimization

Cited by 6 publications

References 30 publications

Recent progress in semiconductor/graphene photocatalysts: synthesis, photocatalytic applications, and challenges

Recent progress in semiconductor/graphene photocatalysts: synthesis, photocatalytic applications, and challenges

Graphene-Based Photocatalysts: Properties and Characterization for Photocatalytic Applications

Synergistic photocatalytic degradation of methylene blue using TiO2 composites with activated carbon and reduced graphene oxide: a kinetic and mechanistic study

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