Preparation of TiO2/mesoporous carbon composites and their photocatalytic performance for methyl orange degradation

Yin, Biaolin; Wang, Jitong; Xu, Wei; Long, Donghui; Qiao, Wen-ming; Ling, Licheng

doi:10.1016/j.carbon.2013.01.050

Cited by 8 publications

(4 citation statements)

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“…The smaller band gap energy means that the sample can absorb more photons. The more photons are expected to produce additional photogenerated electron-hole pairs to participate in photocatalytic reactions and enhance photocatalytic activity [18,34]. It can be concluded that the as-prepared TiO 2 hollow microspheres possess high photocatalytic capability.…”

Section: Resultsmentioning

confidence: 95%

Controlled preparation of TiO2 hollow microspheres constructed by crosslinked nanochains with high photocatalytic activity

Song

You

Chen

et al. 2015

J Mater Sci: Mater Electron

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TiO 2 hollow microspheres were successfully synthesized via a controlled hydrolysis reaction, which involved the deposition of an inorganic coating of TiO 2 on the surface of carbon spheres and subsequent removal of carbon spheres by calcination in air. The as-prepared TiO 2 hollow microspheres with an average diameter of 200 nm presented a novel morphology, which was constructed by closely crosslinked TiO 2 nanochains. The morphology of the hollow sphere can be controlled by varying the concentration of TiCl 3 solution. A possible formation mechanism was also proposed. The photo-degradation of rhodamine B (RhB) aqueous solution showed that TiO 2 hollow microspheres exhibited higher photocatalytic activity than that of TiO 2 nanoparticles. The enhanced photocatalytic activity of the as-prepared TiO 2 microspheres here could result from their hollow structures assembled by TiO 2 nanochains and large light-harvesting efficiency.

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Section: Resultsmentioning

confidence: 95%

Controlled preparation of TiO2 hollow microspheres constructed by crosslinked nanochains with high photocatalytic activity

Song

You

Chen

et al. 2015

J Mater Sci: Mater Electron

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“…The carbon based nanomaterials recently used in various applications, such as high-strength composite materials, biomaterials, and electronics due their excellent mechanical strength, electrical and thermal conductivity, and optical properties [16][17]. From the literature it is evident that carbon materials can be used for synthesis of photocatalytic materials [19][20][21][22][23]. However major work has been carried out on the doping of carbon on TiO 2 for enhancement in the absorption of light toward visible range and to increase the rate of electron hole recombination in order to enhance the photocatalytic activity [24].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Photocatalytic Activity of TiO2 Supported on Different Carbon Allotropes for Degradation of Pharmaceutical Organic Compounds

Tayade

2018

Materials Research Foundations

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TiO 2 -carbon composites with different amount of TiO 2 (5%, 10%, 20%, 30% and 50%) supported on different carbon allotropes such as activated charcoal, graphite, and graphene were synthesized by hydrothermal method. The synthesized catalysts were characterized by X-ray diffraction (XRD), ultraviolet-visible diffuse reflectance spectroscopy (UV-vis DRS), N2 adsorption and scanning electron microscopy (SEM) techniques. XRD result demonstrated that, the loading of TiO 2 has not significantly altered the structure of the support carbon allotropes. However, the bandgap and surface area of the composite was varied with respect to the amount of TiO 2 loading in the composites. The photocatalytic activity of the synthesized TiO 2 -carbon composites was evaluated by photocatalytic degradation of isoniazide in aqueous medium. All the synthesized catalyst were found easy to separate from the reaction mixture. The result demonstrated that the composites synthesized using activated charcoal showed enhanced photocatalytic activity as compared to the other allotropes of carbon. The highest photocatalytic activity was obtained using a composite having 30% TiO 2 supported on activated charcoal.

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“…The objective of this study was to investigate whether the additive of nitrogen and carbon co-modifi ed TiO 2 photocatalyst can improve self-cleaning properties of gypsum plasters. In view of the literature data [33][34][35][36][37]25 , it is believed that, the observed in pure (unmodifi ed) TiO 2 drawbacks, regarding the high excitation energy level requirement of the TiO 2 particles 29, 40 , infl uencing the initiation time and effectiveness of the photocatalytic process, can be overcome by doping titania with those two non-metal ions.…”

Section: Introductionmentioning

confidence: 99%

Preliminary studies of photocatalytic activity of gypsum plasters containing TiO₂ co-modified with nitrogen and carbon

Janus

Bubacz

Zatorska

et al. 2015

Polish Journal of Chemical Technology

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The conducted studies were focused on the development of the gypsum material exhibiting self-cleaning properties. To this end, the raw gypsum was mixed with unique TiO2-based photocatalysts, previously modified by nitrogen and/ or carbon doping. The photocatalytic activity of the obtained gypsum plasters was evaluated trough the degradation of model organic compound (Reactive Red 198) under UV-vis irradiation. The impact of the photocatalysts presence on the physicochemical properties of the obtained gypsum plasters was evaluated. Furthermore, the role of non-metals presence on the photocatalytic properties of the TiO2 was determined. It was confirmed that the addition of N,C co-modified titanium dioxide into gypsum bestows this material with self-cleaning properties. The highest dye removal rate was displayed by the gypsum plaster containing optimal amount (10 wt%) of co-modified TiO2/N,C photocatalyst, after 20 hours of UV-vis irradiation.

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Preparation of TiO2/mesoporous carbon composites and their photocatalytic performance for methyl orange degradation

Cited by 8 publications

References 0 publications

Controlled preparation of TiO2 hollow microspheres constructed by crosslinked nanochains with high photocatalytic activity

Controlled preparation of TiO2 hollow microspheres constructed by crosslinked nanochains with high photocatalytic activity

Enhanced Photocatalytic Activity of TiO2 Supported on Different Carbon Allotropes for Degradation of Pharmaceutical Organic Compounds

Preliminary studies of photocatalytic activity of gypsum plasters containing TiO₂ co-modified with nitrogen and carbon

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Preparation of TiO2/mesoporous carbon composites and their photocatalytic performance for methyl orange degradation

Cited by 8 publications

References 0 publications

Controlled preparation of TiO2 hollow microspheres constructed by crosslinked nanochains with high photocatalytic activity

Controlled preparation of TiO2 hollow microspheres constructed by crosslinked nanochains with high photocatalytic activity

Enhanced Photocatalytic Activity of TiO2 Supported on Different Carbon Allotropes for Degradation of Pharmaceutical Organic Compounds

Preliminary studies of photocatalytic activity of gypsum plasters containing TiO2 co-modified with nitrogen and carbon

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Preliminary studies of photocatalytic activity of gypsum plasters containing TiO₂ co-modified with nitrogen and carbon