Micro-mesoporous anatase TiO2 nanorods with high specific surface area possessing enhanced adsorption ability and photocatalytic activity

Gerasimova, T. V.; Евдокимова, О. Л.; Краев, А. С.; Ivanov, V. K.; Агафонов, А. В.

doi:10.1016/j.micromeso.2016.08.015

Cited by 41 publications

(13 citation statements)

References 53 publications

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“…The experimental setup for the photocatalytic destruction of the dye has been described in detail. 31 The source of visible light irradiation was a 55 W lamp (Phillips). 0.03 g of the powder was added into 500 mL of the 1.2 mg L À1 RhB solution.…”

Section: Adsorption and Photocatalytic Testsmentioning

confidence: 99%

Doped TiO₂: the effect of doping elements on photocatalytic activity

et al. 2020

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Section: Adsorption and Photocatalytic Testsmentioning

confidence: 99%

Doped TiO₂: the effect of doping elements on photocatalytic activity

et al. 2020

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“…Inorganic oxide materials with porous architecture are especially attractive as adsorbents because these structures are beneficial to transfer reactants to the active sites. A variety of efficient, cost-effective and environmentally friendly oxide-based nano-adsorbents, such as Fe3O4 [13], MgO [14], SnO2 [15], CuO [16], TiO2 [17], ZnO [15,18,19] and their composites have been developed. Among oxide nanoparticles, ZnO is one of the most intensively studied material due to its unique properties, such as high chemical, thermal and mechanical stability, low toxicity, biocompatibility, biodegradability and wide variety of particle morphologies [20].…”

Section: Introductionmentioning

confidence: 99%

Room-temperature fabrication of core-shell nano-ZnO/pollen grain biocomposite for adsorptive removal of organic dye from water

Tzvetkov

Kaneva

Spassov

2017

Applied Surface Science

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A new core-shell nano-ZnO/pollen grain (n-ZnO/PG) biocomposite have been successfully synthesized via simple and low-temperature two-step liquid precipitation method. The synthetic strategy consists of grafting the surface of pine pollen grains (PG) with Zn 2+-organic complexes followed by a treatment in Zn(CH3COO)2/NaOH solution, thus producing a closed n-ZnO shell around the organic core, with a thickness of ~450 nm. Scanning electron microscopy, X-ray diffraction, FTIR, XPS and UV-vis spectroscopy measurements along with N2 adsorption/desorption were used to characterize the resulting n-ZnO/PG biocomposite. The asprepared core-shell microparticles are meso-/macro-porous with BET surface area of 25 m 2 g-1 and total pore volume of 0.26 cm 3 g-1. The adsorption properties of n-ZnO/PG were evaluated through adsorption of Malachite Green (MG) from aqueous medium at room temperature (25 °C). For the sake of comparison, the physico-chemical and adsorptive properties of the raw PG and pure n-ZnO were also examined. Results indicate that n-ZnO/PG is the most favorable for the adsorption of MG under the conditions used in this study. The adsorption kinetic data for PG, n-ZnO and n-ZnO/PG follow the pseudo-second order equation and the maximum adsorption capacity follows an order of n-ZnO/PG > n-ZnO > PG. For n-ZnO/PG an adsorption uptake up to 145.9 mg g-1 is observed. The as-prepared core-shell biocomposite material is a promising cost-effective and environmentally friendly adsorbent due to its textural properties, surface chemistry, adsorption capacity and recyclability.

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“…The synthesis of nanostructured TiO 2 was carried out by using the sol-gel method described in detail elsewhere. 17,22 The loading of Mo was achieved by two methods, as reflected in the scheme (Fig. 1).…”

Section: Methods Of Loadingmentioning

confidence: 99%

“…This means that the efficiency of TiO 2 as a photocatalyst is decreased compared to the data obtained under UV irradiation. 22 The introduction of Mo increases the efficiency by up to 96% in 60 min of irradiation. It should be noted that Wang et al found that Mo doping of TiO 2 increases the photocatalytic activity from 36% to 73% for 150 min of visible light irradiation.…”

Section: Adsorption and Photocatalytic Activitymentioning

confidence: 99%

Mo‐doped TiO₂ using plasma in contact with liquids: advantages and limitations

Khlyustova

Sirotkin

Краев

et al. 2020

J of Chemical Tech & Biotech

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BACKGROUND The presented work focuses on the comparison of sorption and photocatalytic properties of TiO2 doped with molybdenum using different methods of Mo loading. The structural and photocatalytic characteristics of doped TiO2 are determined by the method of synthesis and loading of the dopant element. As an alternative to simple wet chemical loading, three types of low‐temperature plasma in contact with liquid are considered: atmospheric pressure glow discharge, underwater diaphragm discharge, and underwater plasma. RESULTS The results show that the introduction of Mo, regardless of the doping method, leads to a decrease in the band gap. The surface characteristics of powders depend on the doping method. The sorption capacity increases two to three times, and the efficiency of photodestruction increases from 52% to 96% when exposed to visible light for 60 min. CONCLUSIONS A comparison of the sorption and photocatalytic activity of Mo‐doped TiO2 showed the inexpediency of using a glow discharge for doping. The synthesis of a highly efficient sorbent or photocatalyst can be determined by the type of underwater plasma. © 2020 Society of Chemical Industry

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Micro-mesoporous anatase TiO2 nanorods with high specific surface area possessing enhanced adsorption ability and photocatalytic activity

Cited by 41 publications

References 53 publications

Doped TiO₂: the effect of doping elements on photocatalytic activity

Doped TiO₂: the effect of doping elements on photocatalytic activity

Room-temperature fabrication of core-shell nano-ZnO/pollen grain biocomposite for adsorptive removal of organic dye from water

Mo‐doped TiO₂ using plasma in contact with liquids: advantages and limitations

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Micro-mesoporous anatase TiO2 nanorods with high specific surface area possessing enhanced adsorption ability and photocatalytic activity

Cited by 41 publications

References 53 publications

Doped TiO2: the effect of doping elements on photocatalytic activity

Doped TiO2: the effect of doping elements on photocatalytic activity

Room-temperature fabrication of core-shell nano-ZnO/pollen grain biocomposite for adsorptive removal of organic dye from water

Mo‐doped TiO2 using plasma in contact with liquids: advantages and limitations

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Product

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Doped TiO₂: the effect of doping elements on photocatalytic activity

Doped TiO₂: the effect of doping elements on photocatalytic activity

Mo‐doped TiO₂ using plasma in contact with liquids: advantages and limitations