Graphitic-C3N4-hybridized TiO2 nanosheets with reactive {001} facets to enhance the UV- and visible-light photocatalytic activity

Gu, Liuan; Wang, Jingyu; Zou, Zhenwei; Han, Xijiang

doi:10.1016/j.jhazmat.2014.01.021

Cited by 267 publications

(122 citation statements)

References 57 publications

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“…Two pronounced peaks were found in g-C 3 N 4 at 27.4°and 13.1°, which can be indexed to (002) and (001) diffraction planes of the graphite-like carbon nitride [5,21] and correspond to the characteristic interplanar staking peak of aromatic systems and the inter-layer structural packing, respectively. For TiO 2 sample, its diffraction peaks are in good agreement with the anatase phase of TiO 2 (JCPDS no.…”

Section: Resultsmentioning

confidence: 99%

“…To date, the combination of g-C 3 N 4 and TiO 2 into a heterostructure presents a feasible and inspiring route towards improved charge separation in the electron transfer process [20][21][22][23][24][25]. Yu et al [26] synthesized g-C 3 N 4 -TiO 2 nanocomposites by a facile calcination route using P25 and urea, resulting in higher photoactivity for the decomposition of HCHO than that of single-phase C 3 N 4 and bare TiO 2 .…”

Section: Introductionmentioning

confidence: 99%

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TiO2/g-C3N4 nanosheets hybrid photocatalyst with enhanced photocatalytic activity under visible light irradiation

Li²,

Zhao

et al. 2015

Res Chem Intermed

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The nanosheets TiO 2 /g-C 3 N 4 hybrid material with efficient visible-light photocatalytic activity was prepared by a facile solvothermal method. The as-prepared TiO 2 /g-C 3 N 4 nanosheets composite was thoroughly characterized by X-ray diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy, N 2 adsorption-desorption analysis, UV-Vis diffuse reflectance spectroscopy, and X-ray photoelectron spectroscopy. As evaluated by the degradation of methylene blue under visible light irradiation, TiO 2 /g-C 3 N 4 hybrid composites exhibit much higher photocatalytic activity than pristine g-C 3 N 4 and TiO 2 , respectively. The significant enhancement in photodegradation activity over the TiO 2 /g-C 3 N 4 photocatalyst can be ascribed to the combined effects of the nanosheet structure and subsequent efficient separation of photogenerated charge carriers. A tentative mechanism for the photodegradation process was proposed.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

TiO2/g-C3N4 nanosheets hybrid photocatalyst with enhanced photocatalytic activity under visible light irradiation

Li²,

Zhao

et al. 2015

Res Chem Intermed

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“…6B and each signed with an arrow. The microstructure analysis indicates that both components are closely attached to form the heterojunction interface along boundaries, by which photoinduced charge carriers can be easily migrated and separated [35].…”

Section: Microstructure Analysismentioning

confidence: 99%

Fabrication, characterization, and photocatalytic performance of exfoliated g-C3N4–TiO2 hybrids

Chang

Zhang

Xie

et al. 2014

Applied Surface Science

190

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a b s t r a c tA series of TiO 2 hybrids composited with exfoliated g-C 3 N 4 nanosheets (CNs) were successfully synthesized through a facile sol-gel method and fully characterized by X-ray diffraction patterns (XRD), Fourier transform-infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and UV-vis diffuse reflectance spectra (UV-vis DRS). The CNs-TiO 2 hybrids were exposed to visible light irradiation and showed much higher catalytic capability toward degrading dye rhodamine B (RhB) comparing with bare TiO 2 and N-TiO 2 . The sample CNs-TiO 2 -0.05 exhibited the largest apparent reaction rate constant among all CNs-TiO 2 hybrids, which was 2.4 times and 7.0 times as high as bare TiO 2 and N-TiO 2 , respectively. The enhanced catalytic efficiency could be mainly attributed to the well-matched band gap structure with heterojunction interface, suitable specific surface area, and favorable optical property. In addition, active species trapping experiments were conducted, revealing that photoinduced holes (h + ) had a severe influence on catalytic outcome, through which a possible catalytic mechanism was finally realized and proposed.

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“…By contrast, sensitization by narrow band gap semiconductor is a more feasible route to enhance the visible light photocatalytic activity of T001 [21][22][23]. Besides the obvious visible light response, the heterojunction formed by T001 and narrow band gap semiconductor contributes significantly to the efficient separation of charge carriers.…”

Section: Introductionmentioning

confidence: 99%

A facile synthesis of CdSe quantum dots-decorated anatase TiO2 with exposed {0 0 1} facets and its superior photocatalytic activity

Wang

Xiao

Fang

et al. 2016

Applied Catalysis B: Environmental

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Graphitic-C3N4-hybridized TiO2 nanosheets with reactive {001} facets to enhance the UV- and visible-light photocatalytic activity

Cited by 267 publications

References 57 publications

TiO2/g-C3N4 nanosheets hybrid photocatalyst with enhanced photocatalytic activity under visible light irradiation

TiO2/g-C3N4 nanosheets hybrid photocatalyst with enhanced photocatalytic activity under visible light irradiation

Fabrication, characterization, and photocatalytic performance of exfoliated g-C3N4–TiO2 hybrids

A facile synthesis of CdSe quantum dots-decorated anatase TiO2 with exposed {0 0 1} facets and its superior photocatalytic activity

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