The Evaluation of Photocatalytic Properties of Iron Doped Titania Photocatalyst by Degradation of Methylene Blue Using Fluorescent Light Source

Abidov, Amir; Allabergenov, Bunyod; Tursunkulov, Oybek; Lee, Jeonghwan; Kim, Sang Youp; Lee, Eun Young; He, Li Li; Kim, Sung Jin

doi:10.4028/www.scientific.net/amr.652-654.1700

Cited by 5 publications

(3 citation statements)

References 5 publications

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“…The selection of the type of semiconductor is based on its ability to convert the vat dyes into nontoxic products [ 44 , 90 , 177 , 178 ]. Additionally, the use of mesoporous materials, like zeolite as a support for these series of semiconductors, has recently become the focus of intensive research on vat dye photodecolorization, due to the fact that the semiconductor support influences the photocatalytic efficiency through structural features, and the interaction between the vat dyes leads to the enhancement of contact between the surface, and irradiation likewise decreases with the amount of semiconductor required [ 179 ]. Thus, there are some studies focused on the importance of semiconductor supported zeolite for vat dye photodegradation, including Co-ZSM-5, TiO 2 -HZSM-5, Fe-exchange zeolite, and CuO-X zeolite [ 180 , 181 ].…”

Section: Photocatalytic Decolorization Of Synthetic Dyesmentioning

confidence: 99%

Recent Advances in Heterogeneous Photocatalytic Decolorization of Synthetic Dyes

Julkapli

Bagheri

Hamid

2014

The Scientific World Journal

269

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During the process and operation of the dyes, the wastes produced were commonly found to contain organic and inorganic impurities leading to risks in the ecosystem and biodiversity with the resultant impact on the environment. Improper effluent disposal in aqueous ecosystems leads to reduction of sunlight penetration which in turn diminishes photosynthetic activity, resulting in acute toxic effects on the aquatic flora/fauna and dissolved oxygen concentration. Recently, photodegradation of various synthetic dyes has been studied in terms of their absorbance and the reduction of oxygen content by changes in the concentration of the dye. The advantages that make photocatalytic techniques superior to traditional methods are the ability to remove contaminates in the range of ppb, no generation of polycyclic compounds, higher speed, and lower cost. Semiconductor metal oxides, typically TiO2, ZnO, SnO, NiO, Cu2O, Fe3O4, and also CdS have been utilized as photocatalyst for their nontoxic nature, high photosensitivity, wide band gap and high stability. Various process parameters like photocatalyst dose, pH and initial dye concentrations have been varied and highlighted. Research focused on surface modification of semiconductors and mixed oxide semiconductors by doping them with noble metals (Pt, Pd, Au, and Ag) and organic matter (C, N, Cl, and F) showed enhanced dye degradation compared to corresponding native semiconductors. This paper reviews recent advances in heterogeneous photocatalytic decolorization for the removal of synthetic dyes from water and wastewater. Thus, the main core highlighted in this paper is the critical selection of semiconductors for photocatalysis based on the chemical, physical, and selective nature of the poisoning dyes.

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Section: Photocatalytic Decolorization Of Synthetic Dyesmentioning

confidence: 99%

Recent Advances in Heterogeneous Photocatalytic Decolorization of Synthetic Dyes

Julkapli

Bagheri

Hamid

2014

The Scientific World Journal

269

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“…Many researchers report successful doping Titanium dioxide by metal cations and non metal anions. Fe doped TiO 2 fabricated by mechanochemical milling performed very good photocatalytic properties for photodegradation of Methylene Blue [1]. For better understanding of doping mechanism X-Ray Photoelectron spectroscopy was used.…”

Section: Introductionmentioning

confidence: 99%

X-Ray Photoelectron Spectroscopy Characterization of Fe Doped TiO2 Photocatalyst

Abidov¹,

Allabergenov²,

Lee³

et al. 2013

IJMMM

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“…The transition metal ions and the rare earth metal ions are the most widely studied metal ions at present [ 17 , 18 ]. The charge transitions between the d electrons of the transition metal ions and the conduction bands or valence bands of the TiO 2 can improve the optical quantum efficiency and the photocatalytic effect ability.…”

Section: Introductionmentioning

confidence: 99%

Degradation of Tetracycline on SiO2-TiO2-C Aerogel Photocatalysts under Visible Light

2022

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SiO2-TiO2-C aerogel photocatalysts with different carbon loadings were synthesized by using sol-gel chemistry. The anatase crystal and nonmetal carbon dopant were introduced during the sol preparation and formed by hydrothermal treatment, which can simultaneously enhance the adsorption ability and visible light photo-activity. A high surface area (759 g cm−3) SiO2-TiO2-C aerogel composite can remove up to 80% tetracycline hydrochloride within 180 min under visible light. The characterization of the gel structures shows that the homogeneous dispersion of O, Si, Ti and C in the skeleton, indicating that hydrothermal synthesis could provide a very feasible way for the preparation of composite materials. n(C):n(Ti) molar ratio of 3.5 gives the best catalytic performance of the hybrid aerogel, and the cyclic test still confirms over 60% degradation activity after seven use cycles. All catalysis reaction followed the pseudo-first-order rate reaction with high correlation coefficient. The electrons and holes in the compound could be effectively restrained with doping proper amount of C, and ESR results indicate that the oxidation process was dominated by the hydroxyl radical (•OH) and superoxide radical (•O2−) generated in the system.

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The Evaluation of Photocatalytic Properties of Iron Doped Titania Photocatalyst by Degradation of Methylene Blue Using Fluorescent Light Source

Cited by 5 publications

References 5 publications

Recent Advances in Heterogeneous Photocatalytic Decolorization of Synthetic Dyes

Recent Advances in Heterogeneous Photocatalytic Decolorization of Synthetic Dyes

X-Ray Photoelectron Spectroscopy Characterization of Fe Doped TiO2 Photocatalyst

Degradation of Tetracycline on SiO2-TiO2-C Aerogel Photocatalysts under Visible Light

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