The Influence of Cr<sup>3+</sup> on TiO<sub>2</sub> Crystal Growth and Photoactivity Properties

Wahyuningsih, Sayekti; Hidayatika, W. N.; Sari, Puspa; Sari, Putri Permata; Hidayat, Rahmat; Munawaroh, H; Ramelan, Ari Handono

doi:10.1088/1757-899x/333/1/012023

Cited by 2 publications

(1 citation statement)

References 6 publications

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“…In a previous study, on annealing result of TiO2 prepared at 500 °C, the rutile TiO2 was found with a peak at 2θ = 27.50° (d110 = 3.2394 Å), and we have founded more rutile peak at TiO2 annealed at 600 °C and 700 °C, respectively. Some of the anatase peaks of TiO2 disappear, while the peak represented as a rutile TiO2 was increased [20].…”

Section: Xrd Characterizationmentioning

confidence: 96%

Preparation Titanium Dioxide Combined Hydrophobic Polymer with Photocatalytic Self-Cleaning Properties

Wahyuningsih

Cahyono

Aini

2020

Bull. Chem. React. Eng. Catal.

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Titanium dioxide (TiO2) and hydrophobic of TiO2/PDMS (PDMS = polydimethylsiloxane) have been prepared as photocatalytic self-cleaning materials. Synthesis of TiO2 was carried out using the sol-gel method with titanium(IV) isopropoxide (TTIP) as a precursor and acetic acid as a solvent at a temperature of about 10–15 °C, while the synthesis of hydrophobic of TiO2/PDMS composites was carried out by a sonication method under ethanol solution. The results of XRD analysis of synthesized TiO2 showed that TiO2 was anatase phase. The glass-coated TiO2/PDMS were prepared by dip-coating under an ultrasonication bath. TiO2/PDMS composites at a ratio of TiO2/PDMS (1) on the glass plate showed hydrophobic properties, as evidenced by the contact angle of 104° before irradiation and the contact angle of 99.7° after irradiation. The synthesized titanium dioxide has irregular spherical morphology. The increase in PDMS content was correlated with an increase in the roughness of TiO2. PDMS not only acts as low surface energy but also binds TiO2. The hydrophobic behavior of PDMS creates TiO2/PDMS repel each other, gain irregular agglomeration structures. Beside having optimum contact angle, glass-coated TiO2/PDMS (1) is the best composition for degradation of methylene blue in 69.68% for 20 minutes irradiation. Copyright © 2020 BCREC Group. All rights reserved

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Section: Xrd Characterizationmentioning

confidence: 96%

Preparation Titanium Dioxide Combined Hydrophobic Polymer with Photocatalytic Self-Cleaning Properties

Wahyuningsih

Cahyono

Aini

2020

Bull. Chem. React. Eng. Catal.

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Production of TiO2/Cr2O3 Composite Material in the Spherical Form

et al. 2019

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Spherical TiO2/Cr2O3 oxides composites were obtained by template method accompanied with sol-gel method. Ion exchange resins of spherical form (TOKEM-100 and TOKEM-250) were used as an organic polymer matrix. Thermal analysis, X-ray phase analysis and micro-X-ray spectral analysis were used to identify the formation process and compositions of oxides composites. The formation of spherical oxide composite ends at 400 °C and the final products are a mixture of two oxides: Cr2O3 and TiO2 regardless of the structure of the used template. According SEM data prepared TiO2/Cr2O3 composites have spherical form and the size of sphere found to be in a range from 300 to 870 µm.

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The Influence of Cr³⁺ on TiO₂ Crystal Growth and Photoactivity Properties

Cited by 2 publications

References 6 publications

Preparation Titanium Dioxide Combined Hydrophobic Polymer with Photocatalytic Self-Cleaning Properties

Preparation Titanium Dioxide Combined Hydrophobic Polymer with Photocatalytic Self-Cleaning Properties

Production of TiO2/Cr2O3 Composite Material in the Spherical Form

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The Influence of Cr3+ on TiO2 Crystal Growth and Photoactivity Properties

Cited by 2 publications

References 6 publications

Preparation Titanium Dioxide Combined Hydrophobic Polymer with Photocatalytic Self-Cleaning Properties

Preparation Titanium Dioxide Combined Hydrophobic Polymer with Photocatalytic Self-Cleaning Properties

Production of TiO2/Cr2O3 Composite Material in the Spherical Form

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Product

Resources

About

The Influence of Cr³⁺ on TiO₂ Crystal Growth and Photoactivity Properties