Fine-tuning mesoporous silica properties by a dual-template ratio as TiO2 support for dye photodegradation booster

Ulfa, Maria; Anggreani, Cindy Nur; Sholeha, Novia Amalia

doi:10.1016/j.heliyon.2023.e16275

Cited by 3 publications

(1 citation statement)

References 62 publications

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“…Hexagonal TiO2/SiO2 porous microplates revealed that not only the SiO2 peak but also the low TiO2 peak at 2θ =25.5° were in good agreement with the JCPDS card number JCPDS No. 21-1276 as anatase [26]. Except for the successful identification of the amorphous SiO2 phase in both samples, no significant changes were identified.…”

Section: Resultsmentioning

confidence: 81%

Hexagonal TiO2/SiO2 Porous Microplates for Methylene Blue Photodegradation

Ulfa,

Anggreani,

Mulyani

et al. 2024

Bull. Chem. React. Eng. Catal.

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Hexagonal TiO2/SiO2 Porous Microplates have been successfully synthesized by incorporation of Ti precursors into SiO2 synthesized from Si precursors in a gelatin-CTAB mixture via the hydrothermal method. The prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), EDX, nitrogen adsorption-desorption and Fourier transform infrared spectroscopy (FTIR). The sample has a surface area of 735 m2/g, pore volume of 0.67 cc/g, and pore diameter of 3.2 nm, according to the results of the characterization of hexagonal TiO2/SiO2 porous microplates. The transformation of SiO2 microspheres into hexagonal TiO2/SiO2 porous microplates is revealed by a microparticle size increase of 84% and the transition of Si−O bonds into Ti−O and Si−O as measured by FTIR. The photocatalytic activity of hexagonal TiO2/SiO2 porous microplates resulted in 81.15% photodegradation of methylene blue under UV light irradiation within 60 min, which was 21 % better than SiO2. Copyright © 2024 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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Section: Resultsmentioning

confidence: 81%

Hexagonal TiO2/SiO2 Porous Microplates for Methylene Blue Photodegradation

Ulfa,

Anggreani,

Mulyani

et al. 2024

Bull. Chem. React. Eng. Catal.

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Degradation of typical environmental pollutants (ciprofloxacin, carbamazepine and 17-β estradiol) on supported TiO2 photocatalysts: Identification of degradation products and in silico toxicity assessment

Grčić,

Pavlović,

Brnardić

et al. 2023

Journal of Environmental Chemical Engineering

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Gelatin's Effect on Iron Oxide Nanoparticle Properties and Its Use in Thermal Regeneration for Methylene Blue Photodegradation

Ulfa,

Poetry

2024

Bull. Chem. React. Eng. Catal.

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Two series of iron oxide nanoparticles with different textural and structural characteristics were synthesized using the sol-gel method. The iron oxide nanoparticles were made with synthetic (Pluronic P123 Amphiphilic Block Copolymer) and natural (gelatin) double templates and single P123 templates. The influences of the addition of the gelatin template on the microstructure, methylene blue degradation, and thermal photocatalyst regeneration were investigated. The X-ray Diffraction (XRD) examination revealed the formation of iron-P123-gelatin (iron oxide made with P123 and gelatin templates) and iron-P123 (iron oxide made with only P123 template) with hematite and maghemite phases, where the crystallinity and crystallite size increased due to the presence of gelatin. Fourier Transform Infra Red (FTIR) studies indicated a peak at 500 cm−1, revealing the iron groups in both samples and increased intensity in the hydroxyl and carbonyl groups due to gelatin. Furthermore, the surface area, pore volume, and pore diameter of iron-P123-gelatin exhibited an increment due to gelatin addition. According to the Thermogravimetric Analysis (TGA) and Differential Thermal Analyzer (DTA) data, the sample with gelatin had higher thermal stability and weight loss than that without gelatin. The photodegradation of methylene blue utilizing iron-P123-gelatin reached 91.5%, showing a better performance than that of iron-P123. Finally, iron-P123-gelatin demonstrated a promising photocatalyst thermal regeneration for methylene blue photodegradation for 5 cycles at various temperatures, and it is suggested that 450 °C was the ideal temperature. Copyright © 2024 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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Fine-tuning mesoporous silica properties by a dual-template ratio as TiO2 support for dye photodegradation booster

Cited by 3 publications

References 62 publications

Hexagonal TiO2/SiO2 Porous Microplates for Methylene Blue Photodegradation

Hexagonal TiO2/SiO2 Porous Microplates for Methylene Blue Photodegradation

Degradation of typical environmental pollutants (ciprofloxacin, carbamazepine and 17-β estradiol) on supported TiO2 photocatalysts: Identification of degradation products and in silico toxicity assessment

Gelatin's Effect on Iron Oxide Nanoparticle Properties and Its Use in Thermal Regeneration for Methylene Blue Photodegradation

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