Achieving of high utilization of reduced graphene Oxide-TiO2 nanoparticle composites via oxygen bonds for enhanced optical limiting performance

2021 ◽  
pp. 118696
Author(s):  
Bi Tian ◽  
Yu-hua Wang ◽  
Mei-Qi Hao ◽  
Jiong Shu ◽  
Yi-tong Wang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Optical Limiting ◽  
Tio2 Nanoparticle ◽  
Reduced Graphene ◽  
High Utilization ◽  
Nanoparticle Composites

scholarly journals Facile hydrothermal synthesis and optical limiting properties of TiO 2 -reduced graphene oxide nanocomposites

Carbon ◽  
2015 ◽  
Vol 89 ◽  
pp. 130-141 ◽  
Author(s):  
Aijian Wang ◽  
Wang Yu ◽  
Yu Fang ◽  
Yinglin Song ◽  
Ding Jia ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Hydrothermal Synthesis ◽  
Reduced Graphene Oxide ◽  
Optical Limiting ◽  
Reduced Graphene

scholarly journals Effects of Different TiO2 Particle Sizes on the Microstructure and Optical Limiting Properties of TiO2/Reduced Graphene Oxide Nanocomposites

Nanomaterials ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 730 ◽  
Author(s):  
Yuyu Ren ◽  
Lili Zhao ◽  
Yang Zou ◽  
Lixin Song ◽  
Ningning Dong ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Photoelectron Spectroscopy ◽  
Optical Limiting ◽  
Tio2 Particle ◽  
Tetrabutyl Titanate ◽  
Particle Sizes ◽  
X Ray ◽  
Reduced Graphene ◽  
Source Materials

TiO2/reduced graphene oxide (rGO) nanocomposites with two different TiO2 particle sizes were synthesized by a facile hydrothermal method using two different source materials of Ti: tetrabutyl titanate (TBT) and commercial TiO2 powder (P25). For respective series with the same source materials, we investigated additions that optimized the nonlinear optical properties (NLO) and optical limiting (OL) performances, and we explored the relationships between structural diversity and performance. Several characterization techniques, including X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, and diffuse reflectance ultraviolet-visible spectroscopy (UV-Vis) were conducted to confirm the microstructures and chemical states of as-prepared materials. This indicated the existence of the Ti–O–C bond between rGO sheets and TiO2 particles and the reduction from precursor graphene oxide (GO) to rGO. The results of UV-Vis spectra revealed that the TiO2/rGO nanocomposites showed smaller band gaps than bare TiO2. A nanosecond open-aperture Z-scan technique at 1064 nm was applied to investigate NLO and OL properties. TiO2/rGO nanocomposites exhibited enhanced NLO and OL performances, arising from synergistic effects, compared to individual components. The TBT series samples performed better than the P25 series, presumably relevant to dimensional effects.

Synthesis of reduced graphene oxide/Cu nanoparticle composites and their tribological properties

RSC Advances ◽  
2013 ◽  
Vol 3 (48) ◽  
pp. 26086 ◽  
Author(s):  
Yi Zhang ◽  
Hua Tang ◽  
Xiaorui Ji ◽  
Changsheng Li ◽  
Lin Chen ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Tribological Properties ◽  
Reduced Graphene ◽  
Cu Nanoparticle ◽  
Nanoparticle Composites

Preparation of reduced graphene oxide/Cu nanoparticle composites through electrophoretic deposition: application for nonenzymatic glucose sensing

RSC Advances ◽  
2015 ◽  
Vol 5 (21) ◽  
pp. 15861-15869 ◽  
Author(s):  
Qian Wang ◽  
Qi Wang ◽  
Musen Li ◽  
Sabine Szunerits ◽  
Rabah Boukherroub
Keyword(s):  
Thin Films ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electrophoretic Deposition ◽  
Glucose Sensing ◽  
Ethanol Solution ◽  
Simultaneous Reduction ◽  
Electrocatalytic Properties ◽  
Reduced Graphene ◽  
Nanoparticle Composites

The paper reports on the simultaneous reduction/deposition of thin films of rGO/Cu NPs from an ethanol solution of GO and CuSO4 using EPD technique. The electrocatalytic properties of the electrode were exploited for non-enzymatic glucose sensing.

Charm-Bracelet-Type Poly(N-vinylcarbazole) Functionalized with Reduced Graphene Oxide for Broadband Optical Limiting

2010 ◽  
Vol 17 (3) ◽  
pp. 780-785 ◽  
Author(s):  
Pei-Pei Li ◽  
Yu Chen ◽  
Jinhui Zhu ◽  
Miao Feng ◽  
Xiaodong Zhuang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Optical Limiting ◽  
Reduced Graphene

scholarly journals Femtosecond laser-assisted synthesis of silver nanoparticles and reduced graphene oxide hybrid for optical limiting

2018 ◽  
Vol 5 (7) ◽  
pp. 171436 ◽  
Author(s):  
Yang Yu ◽  
Lihe Yan ◽  
Mengmeng Yue ◽  
Huanhuan Xu
Keyword(s):  
Silver Nanoparticles ◽  
Graphene Oxide ◽  
Femtosecond Laser ◽  
Reduced Graphene Oxide ◽  
Femtosecond Laser Ablation ◽  
Optical Limiting ◽  
Femtosecond Laser Pulses ◽  
Ion Concentration ◽  
Ag Nps ◽  
Reduced Graphene

Reduced graphene oxide (rGO) functionalized with silver nanoparticles (Ag NPs) is prepared using a femtosecond laser ablation in liquids method. By ablating the mixed aqueous solutions of silver nitrate and graphene oxide (GO) using femtosecond laser pulses, Ag ions and GO are simultaneously reduced and well-dispersed Ag NPs supported on rGO are obtained. The effect of laser power, irritation time and Ag ion concentration on the optical property and morphology of the products are systematically studied. The nonlinear optical responses of the functionalized graphene are studied using a nanosecond Z-scan technique. The rGO hybrid shows an enhanced nonlinear absorption (NLA) effect compared with GO and rGO, and thus exhibits an excellent optical limiting (OL) property with very low activating threshold, which is estimated to be about 0.38 J cm −2 . The enhanced NLA effect in rGO hybrids makes it possible to fabricate solid-state optical limiter, improving the practicality of graphene materials in the OL area.

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