Synthesis and nonlinear optical properties of reduced graphene oxide hybrid material covalently functionalized with zinc phthalocyanine

Song, Weina; He, Chao; Zhang, Wang; Gao, Yachen; Yang, Yixiao; Wu, Yiqun; Chen, Zhimin; Li, Xiaochen; Dong, Yongli

doi:10.1016/j.carbon.2014.06.018

Cited by 128 publications

(100 citation statements)

References 57 publications

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“…The VG-N-A400 displays a pattern similar to that of bulky V 2 O 5 (PDF 77-2418) with the disappearance of C (002) reflection, which implies the destruction and possible burning-up of the carbon framework of RGO. functional groups of GO [38,39]. Meanwhile, a broad weak peak corresponding to the (002) reflection of laminated RGO sheets is observed at around 23.5° [38].…”

Section: Synthesis and Characterization Of Vo X /Rgo Compositesmentioning

confidence: 96%

“…The GO exhibits an intense characteristic diffraction peak at about 10.2˝. After the introduction of vanadium species and the following solvothermal treatment, the characteristic peak of GO disappears in the pattern of VG-as, which can be ascribed to the reduction of various oxygen functional groups of GO [38,39]. Meanwhile, a broad weak peak corresponding to the (002) reflection of laminated RGO sheets is observed at around 23.5˝ [38].…”

Section: Synthesis and Characterization Of Vo X /Rgo Compositesmentioning

confidence: 99%

“…After the introduction of vanadium species and the following solvothermal treatment, the characteristic peak of GO disappears in the pattern of VG-as, which can be ascribed to the reduction of various oxygen functional groups of GO [38,39]. Meanwhile, a broad weak peak corresponding to the (002) reflection of laminated RGO sheets is observed at around 23.5˝ [38]. In addition, no typical peaks of the vanadium oxide can be seen in the pattern of VG-as, which may be due to the high dispersion of VO x species on the RGO sheets [33].…”

Section: Synthesis and Characterization Of Vo X /Rgo Compositesmentioning

confidence: 99%

“…The morphology of the VOx/RGO composites was gained from the scanning electron microscope (SEM) and transmission electron microscopy (TEM) measurements. The thin and separated graphene sheets with characteristic wrinkled texture and slightly scrolled edges can be seen in the SEM and TEM images of the RGO sample ( Figure S2) [38]. The morphology of the VO x /RGO composites was gained from the scanning electron microscope (SEM) and transmission electron microscopy (TEM) measurements.…”

Section: Synthesis and Characterization Of Vo X /Rgo Compositesmentioning

confidence: 99%

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Facile Synthesis of Vanadium Oxide/Reduced Graphene Oxide Composite Catalysts for Enhanced Hydroxylation of Benzene to Phenol

et al. 2016

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Abstract:The vanadium oxide/reduced graphene oxide (VO x /RGO) composites have been prepared by a simple solvothermal method with the assistance of cationic surfactant cetyltrimethylammonium bromide (CTAB). The microstructure and morphology of the resultant VO x /RGO composites have been well characterized. The VO x nanoparticles are highly dispersed on the RGO sheets with a particle size of about 25 nm. When used as hydroxylation catalysts, the VO x /RGO composites are more efficient than individual RGO and vanadium oxide catalysts. The enhanced catalytic performance may be related to not only the well dispersed VO x active species, but also the hydrophobic surface and huge π-electron system of RGO for the adsorption and activation of benzene. In addition, the effects of calcination conditions on the microstructure and catalytic properties of VO x /RGO composites have also been investigated. The uniform VO x nanoparticles on the separated RGO sheets show highly efficient catalytic performance, while the formation of aggregated H x V 2 O 5 and bulk V 2 O 5 species along with the destruction of RGO sheets are poor for the hydroxylation of benzene. Up to 17.4% yield of phenol is achieved under the optimized catalytic reaction conditions.

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Section: Synthesis and Characterization Of Vo X /Rgo Compositesmentioning

confidence: 96%

Section: Synthesis and Characterization Of Vo X /Rgo Compositesmentioning

confidence: 99%

Section: Synthesis and Characterization Of Vo X /Rgo Compositesmentioning

confidence: 99%

Section: Synthesis and Characterization Of Vo X /Rgo Compositesmentioning

confidence: 99%

See 2 more Smart Citations

Facile Synthesis of Vanadium Oxide/Reduced Graphene Oxide Composite Catalysts for Enhanced Hydroxylation of Benzene to Phenol

et al. 2016

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“…They showed that RGO-ZnPc exhibits much larger NLO absorption coefficient and better optical limiting performance than those of individual GO, ZnPc, and GO-ZnPc hybrid. This is due to the combination of different NLO mechanisms containing the excited state absorption arising from numerous localized sp 2 carbon configurations, two-photon absorption (TPA) from the sp 3 domains, and saturable absorption (SA) from the sp 2 clusters in the RGO moiety, the reverse SA (RSA) originating from the ZnPc moiety, and the contribution of the efficient photo-induced electron transfer or energy transfer process between ZnPc and RGO [5].…”

Section: Introductionmentioning

confidence: 99%

Effect of temperature on the structural, linear, and nonlinear optical properties of MgO-doped graphene oxide nanocomposites

Kimiagar

Abrinaei

2017

Nanophotonics

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Magnesium oxide (MgO)-graphene oxide (GO) nanocomposites were prepared by the hydrothermal method at different temperatures. The effect of growth temperature on the structural, linear, and nonlinear optical (NLO) parameters was investigated. The decoration of MgO on GO sheets was confirmed by X-ray diffraction, scanning electron microscopy, Fourier transform infrared, and UV-visible (UV-vis) spectroscopy analyses. The energy band-gaps of MgO-GO nanocomposites were calculated from UV-vis spectrum using Tauc plot. The NLO parameters of MgO-GO nanocomposites were calculated for the first time by the simple Z-scan technique with nanosecond Nd:YAG laser at 532 nm. The nonlinear absorption coefficient β and nonlinear refractive index n 2 for MgO-GO nanocomposites at the laser intensity of 1.1 × 10 8 W/cm 2 were measured to be in the order of 10 −7 cm/W and 10 −12 cm 2 /W, respectively. The third-order NLO susceptibility of MgO-GO nanocomposites was measured in the order of 10 −9 esu. The results showed that MgO-GO structures have negative nonlinearity as well as good nonlinear two-photon absorption at 532 nm. Furthermore, the NLO parameters increased by the enhancement of the growth temperature. As the investigation of new materials plays an important role in the advancement of optoelectronics, MgO-GO nanocomposites possess potential applications in NLO devices.

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Optical Properties of Hybrid Organic–inorganic Materials and their Applications – Part II : Nonlinear Optics and Plasmonics

Parola

Julián‐López

Carlos

et al. 2017

Handbook of Solid State Chemistry

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Research on hybrid inorganic–organic materials has experienced an explosive growth since the 1980s, with the expansion of soft inorganic chemistry based processes. Indeed, mild synthetic conditions, low processing temperatures provided by “chimie douce” and the versatility of the colloidal state allow for the mixing of the organic and inorganic components at the nanometer scale in virtually any ratio to produce the so‐called hybrid materials. Today, a high degree of control over both composition and nanostructure of these hybrids can be achieved allowing tunable structure–property relationships. This, in turn, makes it possible to tailor and fine‐tune many properties (mechanical, optical, electronic, thermal, chemical…) in very broad ranges, and to design specific multifunctional systems for applications. In particular, the field of “hybrid‐optics” has been very productive not only scientifically but also in terms of applications. Indeed, numerous optical devices based on hybrids are already in, or very close, to the market. This review describes most of the recent advances performed in this field. Emphasis will be given to luminescent, photochromic, NLO , and plasmonic properties. As an Outlook, we show that the controlled coupling between plasmonics and luminescence is opening a land of opportunities in the field of “hybrids‐optics.”

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Synthesis and nonlinear optical properties of reduced graphene oxide hybrid material covalently functionalized with zinc phthalocyanine

Cited by 128 publications

References 57 publications

Facile Synthesis of Vanadium Oxide/Reduced Graphene Oxide Composite Catalysts for Enhanced Hydroxylation of Benzene to Phenol

Facile Synthesis of Vanadium Oxide/Reduced Graphene Oxide Composite Catalysts for Enhanced Hydroxylation of Benzene to Phenol

Effect of temperature on the structural, linear, and nonlinear optical properties of MgO-doped graphene oxide nanocomposites

Optical Properties of Hybrid Organic–inorganic Materials and their Applications – Part II : Nonlinear Optics and Plasmonics

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