Physicochemical and photocatalytic activities of self-assembling TiO2 nanoparticles on nanocarbons surface

Wang, Feng; Zhang, Kan

doi:10.1016/j.cap.2011.07.030

Cited by 34 publications

(13 citation statements)

References 30 publications

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“…In addition, there is another weak peak observed at 290 eV, commensurate with O-C]O units. [77][78][79] The peaks (Fig. 4(c)) at the binding energies of 459.0 and 464.8 eV can be attributed to Ti 2p 3/2 and Ti 2p 1/2 , respectively.…”

Section: Resultsmentioning

confidence: 99%

In situcarbon-supported titanium dioxide (ICS-TiO₂) as an electrode material for high performance supercapacitors

et al. 2020

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Supercapacitors have attracted significant attention in the last few years as they have the capability to fulfill the demand for both power and energy density in many energy storage applications. In this study, an in situ carbon-supported titanium oxide (ICS-TiO 2 ) electrode has been prepared using sucrose and TiO 2 powder. The ICS-TiO 2 powder was prepared by slipcasting, followed by the annealing of the TiO 2 slurry. Sucrose was added to the TiO 2 slurry as a soluble carbon source, and was converted into carbon at 600 C then coated on the TiO 2 particles. The morphological and structural evolution of the electrode was investigated by FEG-SEM, FEG-TEM, XRD, BET, FTIR, XPS and Raman spectroscopy. The electrochemical characterization of ICS-TiO 2 demonstrated that this material exhibits an efficient value of specific capacitance (277.72 F g À1 at 25 mV s À1 ) for charge storage. ISC-TiO 2 also exhibits a specific capacitance of 180 F g À1 at 2 A g À1 in a 1 M Na 2 SO 4 aqueous electrolyte. The results suggest that ICS-TiO 2 can be utilized as a highperformance electrode material for supercapacitors with desirable electrochemical properties. Fig. 3 (a) Nitrogen adsorption/desorption isotherms; (b) nitrogen desorption/desorption pore size distribution; (c) XRD pattern, (d) Raman spectra; (e) FTIR spectra of TiO 2 and ICS-TiO 2 ; (f) TGA of ICS-TiO 2 .This journal is

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Section: Resultsmentioning

confidence: 99%

In situcarbon-supported titanium dioxide (ICS-TiO₂) as an electrode material for high performance supercapacitors

et al. 2020

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“…Zhang et al reported that TiO 2 /graphene composite photocatalyst [14] is synthesized by a simple liquid-phase deposition technique. Moreover, adopting a similar approach, Wang et al prepared nanocarbon/TiO 2 nanocomposites where titania nanoparticles were decorated by thermal reaction on the surfaces of three different dimensional nanocarbons [9]. While in thermal reduction method, TiO 2 /graphene composite [12] with a remarkable visible light photocatalytic activity was prepared by Zhang et al using a heat treatment method of GO, where GO changed to reduced graphene oxide.…”

Section: In Situ Growth Strategymentioning

confidence: 99%

“…, 18, 21, 22, 26, 28, 30-33, 35, 36, 40, 41, 43, 45, 48, 50, 52-56, 60, 61, 67-69], rhodamine B (RhB)[13, 20, 24, 27, 32, 42, 44, 51, 52, 56-59, 62, 64, 73], methyl orange (MO)[9,10,14,37,38,49,63,66,71,72,74], anthracene-9-, as well as photocatalytic reduction of Cr(VI)[17,47,71], along with photocatalytic antibacterial activity for killing E. coli bacteria[25] by UV[1, 8-10, 13, 14, 16-24, 26, 28-34, 37, 39-45, 50, 54, 65-71], as well as visible irradiation[1, 8-13, 15, 16, 20, 22, 25, 27, 30-33, 35-38, 42, 45-49, 51-64, 67, 68, 72-74], in water which are briefly summarized in…”

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confidence: 99%

Water Remediation by G-/GO-Based Photocatalysts

Seema¹

2019

Graphene and Its Derivatives - Synthesis and Applications [Working Title]

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Graphene, a two-dimensional sheet of sp 2 hybridized carbon atoms, has shown to be the most fascinating and promising option among nanomaterials for a variety of applications, because of its unique structure and tunable physiochemical properties. It can be either in the pure form or in its modified derivatives that include graphene oxide (GO), reduced graphene oxide (rGO), graphene-metal nanoparticle composites, graphene-polymer hybrids, and graphene/organic structures that showed improved results while maintaining inherent properties of the material. These modified nanostructures have a variety of applications as catalysts, energy storage/conversion, antimicrobial, and water decontaminant. In the field of environmental science, graphene has been widely used for molecular sieving involving gas phase separation and organic waste removal from water, due to its biocompatibility, various functional groups, and accessible surface area. Modified graphene can also serve as a semiconductor that can increase the efficiency of the photocatalytic ecosystems that results in the inactivation of the microorganisms causing the organic chemicals to degrade.

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“…Kukovecz’s group adopted PbSe quantum dot as the sensitizer to modify TiO 2 nanowires and the resulting composite displays high performance under visible light illumination [ 36 ]. Recently, various allotropes of carbon materials, including active carbon, carbon nanotubes (CNTs) and graphene, have been employed to combine with TiO 2 , opening a door to a research frontier for this traditional semiconductor material [ 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 ]. Yu et al prepared the C 60 modified TiO 2 and the photocatalytic oxidation rate of gas-phase acetone is 3.3 times higher than that achieved when adopting the P25 [ 38 ].…”

Section: Introductionmentioning

confidence: 99%

Graphene Modified TiO2 Composite Photocatalysts: Mechanism, Progress and Perspective

et al. 2018

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Graphene modified TiO2 composite photocatalysts have drawn increasing attention because of their high performance. Some significant advancements have been achieved with the continuous research, such as the corresponding photocatalytic mechanism that has been revealed. Specific influencing factors have been discovered and potential optimizing methods are proposed. The latest developments in graphene assisted TiO2 composite photocatalysts are abstracted and discussed. Based on the primary reasons behind the observed phenomena of these composite photocatalysts, probable development directions and further optimizing strategies are presented. Moreover, several novel detective technologies—beyond the decomposition test—which can be used to judge the photocatalytic performances of the resulting photocatalysts are listed and analyzed. Although some objectives have been achieved, new challenges still exist and hinder the widespread application of graphene-TiO2 composite photocatalysts, which deserves further study.

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Physicochemical and photocatalytic activities of self-assembling TiO2 nanoparticles on nanocarbons surface

Cited by 34 publications

References 30 publications

In situcarbon-supported titanium dioxide (ICS-TiO₂) as an electrode material for high performance supercapacitors

In situcarbon-supported titanium dioxide (ICS-TiO₂) as an electrode material for high performance supercapacitors

Water Remediation by G-/GO-Based Photocatalysts

Graphene Modified TiO2 Composite Photocatalysts: Mechanism, Progress and Perspective

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Physicochemical and photocatalytic activities of self-assembling TiO2 nanoparticles on nanocarbons surface

Cited by 34 publications

References 30 publications

In situcarbon-supported titanium dioxide (ICS-TiO2) as an electrode material for high performance supercapacitors

In situcarbon-supported titanium dioxide (ICS-TiO2) as an electrode material for high performance supercapacitors

Water Remediation by G-/GO-Based Photocatalysts

Graphene Modified TiO2 Composite Photocatalysts: Mechanism, Progress and Perspective

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In situcarbon-supported titanium dioxide (ICS-TiO₂) as an electrode material for high performance supercapacitors

In situcarbon-supported titanium dioxide (ICS-TiO₂) as an electrode material for high performance supercapacitors