Characterization and photocatalytic properties of ceramics TiO2 nanocomposites

Yoon, Soon-Do; Byun, Hun‐Soo; Yun, Yeon-Hum

doi:10.1016/j.ceramint.2015.02.137

Cited by 13 publications

(4 citation statements)

References 16 publications

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“…All rights reserved. In recent years, titania (TiO 2 ) has received considerable atten-48 tion in the field of air and water purification due to its good photo-49 catalytic activity and nontoxicity [1][2][3][4]. However, the higher 50 energy band gap (3.2 eV) and high recombination rate of 51 photo-generated electron-hole pairs of TiO 2 has limited its practi-52 cal application [5].…”

mentioning

confidence: 99%

Hydrothermal synthesis of mesoporous WO3–TiO2 powders with enhanced photocatalytic activity

Shi

Liu

Huang

et al. 2015

Advanced Powder Technology

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confidence: 99%

Hydrothermal synthesis of mesoporous WO3–TiO2 powders with enhanced photocatalytic activity

Shi

Liu

Huang

et al. 2015

Advanced Powder Technology

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“…With the rapid development of industry, industrial wastewater containing various organic pollutants, dyes and antibiotics is becoming a crucial problem not only to human health but also to the environment(Oar-Arteta et al, 2017; Wang et al, 2019;Casillas et al, 2017;. Among various techniques for purifying environment, the semiconductor-TiO 2 photo-catalytic process is a very e cient technique for photodegrading the environmentally relevant organic pollutants and purifying water and air which is arousing more and more interest in recent years (Xia et al, 2022;Xing et al, 2021;Yoon et al, 2015;Liu et al, 2012;Shi et al, 2008). Unlike the traditional treatment methods, photocatalysis can remove low concentrated contaminants without secondary treatment (He et al, 2021;Wang et al 2017, Etacheri et al 2015.…”

Section: Introductionmentioning

confidence: 99%

Novel dendrimer-like N-doped TiO 2 -Fe 2 O 3 /C derived from bimetallic Ti-Fe-MOFs for the photocatalytic degradation

Li,

Zhang,

Chen

et al. 2024

Preprint

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In this study, N-doped TiO2-Fe2O3/C nanostructure is prepared by mixing of the precursors of both metals (Ti and Fe) with the N doped ligand precursor in the same process and further being calcined at 500oC directly in air atmosphere. Herein, other three different Ti-MOFs precursors and its derivatives were also obtained in the same way for comparison of structure and performance. Interestingly, the obtained products derived from N doped bimetallic Ti-Fe MOFs display a particularly dendritic structure with large surface area and well mesoporous structures. Meanwhile, it was further confirmed from FTIR and XPS results that the derivatives were still retain N and C components after calcination in air condition which is beneficial to improve the photocatalytic activity. Finally, the prepared N doped dendritic bimetallic structure as a photocatalyst to decompose methylene blue (MB) dye. It was showed that N-doped TiO2-Fe2O3/C demonstrates better photocatalytic performance than that of N-doped TiO2/C and non-N-doped TiO2/C and the MB degradation efficiency of N-doped TiO2-Fe2O3/C reaches 81%.

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“…The degradation was related to the precipitation of α‐Fe 2 O 3 nanoparticles. Yoon et al 13 have used fly ash and waste glass powder from the thermal power plant in order to manufacture TiO 2 ceramics by using the mechanical frying and heat reactions. In our earlier work 14 the preparation of glass and glass‐ceramic products from municipal slag by melt‐quenching was achieved, obtaining k values of 2.2 × 10 −2 min −1 .…”

Section: Introductionmentioning

confidence: 99%

Municipal waste slag for dyes photocatalytic and metal recovery applications through structural analysis and experimental characterization

Ali

Issa

Zakaly

et al. 2021

Intl J of Energy Research

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Municipal waste is an essential issue worldwide. The achievements in this field needs to be maximized to meet the increase in municipal waste generated every year. The challenge is to correlate municipal waste management systems to the high valued applications. The present work fills this gap by tracing the elemental analysis of municipal waste slag (MWS) over 10 months for the use of MWS as a visible light photocatalyst for the degradation of methylene blue (MB) and the recovery of valuable metals. The compositions of 10 samples collected at different times have been evaluated using X-ray fluorescence spectroscopy for the major composition and photon activation analysis for the minor composition analysis. The degradation efficiency is controlled by the iron oxidation state and sample's basicity. For as collected slag the degradation is attributed to both Fenton and photo-Fenton reaction while for the melted samples, the prominent reaction is photo-Fenton. The best performing sample, 4-M, shows a pseudo-first-order rate constant k of 1.5 Â 10 À1 min À1 for MB degradation after 20 minutes under a pH of 11 and 0.35 M of H 2 O 2 . This sample shows good stability after seven successive cycles.

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Characterization and photocatalytic properties of ceramics TiO2 nanocomposites

Cited by 13 publications

References 16 publications

Hydrothermal synthesis of mesoporous WO3–TiO2 powders with enhanced photocatalytic activity

Hydrothermal synthesis of mesoporous WO3–TiO2 powders with enhanced photocatalytic activity

Novel dendrimer-like N-doped TiO 2 -Fe 2 O 3 /C derived from bimetallic Ti-Fe-MOFs for the photocatalytic degradation

Municipal waste slag for dyes photocatalytic and metal recovery applications through structural analysis and experimental characterization

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