Nickel oxide on mechanochemically synthesized TiO2–CeO2: photocatalytic and electrochemical activity

Petrović, Srdjan; Stanković, Miroslav; Pavlović, Stefan; Mojović, Zorica; Radić, Nenad; Mojović, Miloš; Rožić, Ljiljana

doi:10.1007/s11144-021-02014-8

Cited by 6 publications

(3 citation statements)

References 45 publications

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“…TiO 2 -CeO 2 was mixed in a ratio of .2:.8 and grounded for 100 min with the lowest absolute resistance. Similarly, Petrović et al 95 mechanochemically synthesized TiO 2 -CeO 2 nanopowders doped with different levels of NiO. X-ray diffraction (XRD) analysis showed that NiO formed a significant amorphous composition, with a grain size of about 59 nm in the semiconductor.…”

Section: 14mentioning

confidence: 99%

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Mechanochemical synthesis of nanostructured and composite oxide ceramics: From mechanisms to tailored properties

Zhang,

Xu,

Zhang

et al. 2023

Int J Applied Ceramic Tech

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Mechanochemical synthesis is a technology formed in the 1950s. By applying mechanical energy, mechanochemical synthesis stimulates chemical reactions, causing structural and phase changes and enabling difficult or otherwise impossible reactions to occur. Mechanochemical reactions are relatively safe, clean and efficient. At present, the synthesis of oxide ceramic materials by mechanochemical methods has attracted widespread attention. In the production of oxide ceramic materials, the characteristics of ceramic powder have a certain influence on the molding, sintering, microstructure, and mechanical properties of subsequent ceramics. In this paper, the research progress of mechanical chemistry in the synthesis of nanostructures and composite oxide ceramic powders is reviewed. The effects of process parameters such as ball milling time, speed, atmosphere, grinding media, additives, and ball‐to‐powder ratio on reaction kinetics, phase formation, and powder properties are summarized. In addition, challenges and opportunities for ceramic powder synthesis are also discussed.

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Section: 14mentioning

confidence: 99%

“…TiO 2 –CeO 2 was mixed in a ratio of .2:.8 and grounded for 100 min with the lowest absolute resistance. Similarly, Petrović et al 95 . mechanochemically synthesized TiO 2 –CeO 2 nanopowders doped with different levels of NiO.…”

Section: Mechanochemical Synthesis Of Oxide Ceramic Powdersmentioning

confidence: 99%

Mechanochemical synthesis of nanostructured and composite oxide ceramics: From mechanisms to tailored properties

Zhang,

Xu,

Zhang

et al. 2023

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

show abstract

“…In addition, the thermocatalytic, photocatalytic, and photothermocatalytic oxidation of some volatile organic compounds, 2-propanol, ethanol, and toluene, were investigated over brookite TiO 2 -CeO 2 composites [ 11 ]. Other studies have focused on improving catalyst synthesis methods using green methods [ 14 ] or adding doping of TiO 2 -CeO 2 supports to improve photocatalytic properties [ 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Reaching Visible Light Photocatalysts with Pt Nanoparticles Supported in TiO2-CeO2

et al. 2022

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Nanostructured catalysts of platinum (Pt) supported on commercial TiO2, as well as TiO2-CeO2 (1, 5 and 10 wt% CeO2), were synthesized through the Sol-Gel and impregnation method doped to 1 wt% of Platinum, in order to obtain a viable photocatalytic material able to oxidate organic pollutants under the visible light spectrum. The materials were characterized by different spectroscopy and surface techniques such as Specific surface area (BET), X-ray photoelectron spectroscopy (XPS), XRD, and TEM. The results showed an increase in the diameter of the pore as well as the superficial area of the supports as a function of the CeO2 content. TEM images showed Pt nanoparticles ranking from 2–7 nm, a decrease in the particle size due to the increase of CeO2. The XPS showed oxidized Pt2+ and reduced Pt0 species; also, the relative abundance of the elements Ce3+/Ce4− and Ti4+ on the catalysts. Additionally, a shift in the Eg band gap energy (3.02–2.82 eV) was observed by UV–vis, proving the facticity of applying these materials in a photocatalytic reaction using visible light. Finally, all the synthesized materials were tested on their photocatalytic oxidation activity on a herbicide used worldwide; 2,4-Dichlorophenoxyacetic acid, frequently use in the agriculture in the state of Jalisco. The kinetics activity of each material was measured during 6 h of reaction at UV–Vis 190–400 nm, reaching a removal efficiency of 98% of the initial concentration of the pollutant in 6 h, compared to 32% using unmodified TiO2 in 6 h.

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Novel SiNWs/MnO2/Ni(OH)2 Heterostructure as Photocatalyst for Efficient Degradation of Rhb Under Visible Light

Derkaoui,

Bencherifa,

Mebdoua

et al. 2024

J Inorg Organomet Polym

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Nickel oxide on mechanochemically synthesized TiO2–CeO2: photocatalytic and electrochemical activity

Cited by 6 publications

References 45 publications

Mechanochemical synthesis of nanostructured and composite oxide ceramics: From mechanisms to tailored properties

Mechanochemical synthesis of nanostructured and composite oxide ceramics: From mechanisms to tailored properties

Reaching Visible Light Photocatalysts with Pt Nanoparticles Supported in TiO2-CeO2

Novel SiNWs/MnO2/Ni(OH)2 Heterostructure as Photocatalyst for Efficient Degradation of Rhb Under Visible Light

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