Surfactant Assistance in Improvement of Photocatalytic Hydrogen Production with the Porphyrin Noncovalently Functionalized Graphene Nanocomposite

Zhu, Mingshan; Li, Zhi; Xiao, B.L.; Lü, Yongtao; Du, Yukou; Yang, Ping; Wang, Xiaomei

doi:10.1021/am302912v

Cited by 183 publications

(139 citation statements)

References 56 publications

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“…It can be seen that the intensity ratio of FGO-PN (I D /I G = 1.44) increases with respect to the GO ratio (I D /I G = 1.40), which is consistent with the introduction of defects on the FGO surface. These changes may be due to the π-π interaction between the FGO and PN, which is in agreement with results presented recently by other researchers [28].…”

Section: Resonant Raman Scatteringsupporting

confidence: 93%

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Photoluminescence Quenching and Structure of Nanocomposite Based on Graphene Oxide Layers Decorated with Nanostructured Porphyrin

Bajjou

Mongwaketsi

Khenfouch

et al. 2015

Nanomaterials and Nanotechnology

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Nanocomposites based on few-layers graphene oxide (FGO) decorated with porphyrin nanorods (PN) were synthesized and the interfacial interaction between these two components was investigated by using scanning electron microscopy (SEM), photoluminescence spectroscopy, resonant Raman scattering and Fourier transform infrared (FT-IR) techniques. SEM showed good exfoliation of FGO and its successful interaction with the PN. The photoluminescence results showed an important interaction between FGO and PN resulting in a quenching of the photoluminescence of the PN-FGO composite. Resonant Raman with PN aggregates and FT-IR results revealed a π-π intermolecular interaction confirming the energy/charge transfer. Moreover, the investigation of X-ray diffraction confirmed the intercalation of PN in FGO and their disaggregation. The findings presented here are an important contribution to achieving the functionalization of graphene derivative surfaces with PN for various optoelectronic applications and particularly photovoltaic cells.

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Section: Resonant Raman Scatteringsupporting

confidence: 93%

“…In FGO-PN we find that the relative intensities of these bands change significantly. Moreover, the absence of the band at 1408 cm -1 and the shift of the N-H band indicate a strong interaction between FGO and PN [28], confirming our results obtained by resonant Raman spectroscopy and steady-state photoluminescence. …”

Section: Ft-ir Measurementssupporting

confidence: 90%

Photoluminescence Quenching and Structure of Nanocomposite Based on Graphene Oxide Layers Decorated with Nanostructured Porphyrin

Bajjou

Mongwaketsi

Khenfouch

et al. 2015

Nanomaterials and Nanotechnology

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“…From the Raman spectrum of GeS 2 -rGO, it can be found that there exist two obvious Raman peaks at 1320 cm -1 and 1599 cm -1 . These peaks ought to correspond to the D band and G band of reduced graphene oxide (RGO), respectively [4]. In addition, compared with GO, the intensity ratio of the D band to G band (I D /I G ) of GeS 2 -rGO increases from 0.93 to 1.86 after solvothermal treatment.…”

Section: Methodsmentioning

confidence: 99%

Preparation of GeS2/graphene nanocomposite with high lithium storage capacity

Kang¹,

Wang²,

Li³

et al. 2016

Proceedings of the 2015 4th International Conference on Sensors, Measurement and Intelligent Materials

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Abstract. In the present work, the nanocomposite containing GeS 2 and reduced graphene oxide was prepared and characterized with XRD, HRTEM and Raman spectroscopy. Meanwhile, the electrochemical performance of the GeS 2 /graphene nanocomposite, as an anode material, was evaluated by galvanostatic discharge-charge tests. The experimental results indicate that the as-prepared nanocomposite consists of the GeS 2 nanosheets and the graphene nanosheets. And the graphene nanosheets are coated with GeS 2 nanosheets to form a GeS 2 -graphene double-layer nanostructure. Moreover, it is also observed that the GeS 2 /graphene nanocomposite possesses a high initial discharge capacity of 1560.9 mA h g -1 .

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“…Likewise, several groups found a good application prospect of graphene in dyesensitized system, where graphene as an electron acceptor and transporter can efficiently promote the electron transfer between the photosensitizer and the catalysts, because of the well-aligned energy levels between the different components [77][78][79]. Especially, Lu group has carried out much impressive work in this area.…”

Section: Graphene-based Mixed-colloid Photocatalytic Systemsmentioning

confidence: 99%

Graphene‐Based Solar‐Driven Water‐Splitting Devices

Gong

2015

Graphene‐based Energy Devices

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IntroductionHuman beings are now experiencing the culmination of a fast growth period in economics and technology. But the huge consumption of fossil fuels and the severe deterioration of the environment have restricted the sustainable development of human society. Sufficiently utilizing clean and renewable energy resources is considered as the ultimate solution to the above issues, and has attracted worldwide interest in recent decades [1].Actually, energy from sunlight that arrives on the earth in 1 h is more than all of the energy consumed by humans in an entire year; thus an affordable future can be certainly achieved if solar energy, the most abundant renewable energy in the earth, is efficiently exploited [2]. However, because of the daily and seasonal variability of sunlight, a cost-effective way in which solar energy can be captured, converted, and stored is highly desired. The most widely recognized method for cost-effective massive energy storage is in the form of chemical bonds. Thus, great attention has been given to the development of highly effective technologies for conversion of solar energy to chemical fuels [3,4].Splitting water into hydrogen and oxygen by using sunlight is a promising approach to solar energy storage [1,4]. Among various technologies, direct photolysis of water upon semiconductors, which was first demonstrated by Fujishima and Honda [5] in 1972, is seen as the best path toward this objective, because it is convenient and cost effective, and has huge potential for further development. Therefore, tremendous efforts have been made during the past 40 years to approach this Holy Grail, that is, solar-driven water splitting [6-10].For realizing solar-driven water splitting, one requires, at the minimum, a light absorber, fuel-forming catalysts, and an electrolyte [11,12]. Among them, the light absorber and the catalysts are the two key components that directly determine the final solar conversion efficiency. Hence, most of the research activities in the field of solar-driven water splitting are centralized on the development of light absorbers and catalysts with high efficiency, long durability, and excellent scalability. Several reviews have comprehensively summarized the current achievements Graphene-based Energy Devices, First Edition. Edited by A. Rashid bin Mohd Yusoff.

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Surfactant Assistance in Improvement of Photocatalytic Hydrogen Production with the Porphyrin Noncovalently Functionalized Graphene Nanocomposite

Cited by 183 publications

References 56 publications

Photoluminescence Quenching and Structure of Nanocomposite Based on Graphene Oxide Layers Decorated with Nanostructured Porphyrin

Photoluminescence Quenching and Structure of Nanocomposite Based on Graphene Oxide Layers Decorated with Nanostructured Porphyrin

Preparation of GeS2/graphene nanocomposite with high lithium storage capacity

Graphene‐Based Solar‐Driven Water‐Splitting Devices

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