Helix-sense-selective co-precipitation for preparing optically active helical polymer nanoparticles/graphene oxide hybrid nanocomposites

Nanoscale ◽  
2017 ◽  
Vol 9 (20) ◽  
pp. 6877-6885 ◽  
Author(s):  
Huajun Huang ◽  
Weifei Li ◽  
Yan Shi ◽  
Jianping Deng
Keyword(s):  
Graphene Oxide ◽  
Optically Active ◽  
Polymer Nanoparticles ◽  
Hybrid Nanocomposites ◽  
Helical Polymer ◽  
Co Precipitation

Graphene oxide and graphene hybrid nanocomposites based on compatibilized PP/PTW/EVA: effect of nanofiller and compatibilizer on the modeling of viscoplastic behavior

2021 ◽  
Vol 28 (8) ◽  
Author(s):  
Mohammad Javad Azizl ◽  
Mohammad Barghamadi ◽  
Katayoon Rezaeeparto ◽  
Masoud Mokhtary ◽  
Somayeh Parham
Keyword(s):  
Graphene Oxide ◽  
Hybrid Nanocomposites

scholarly journals SYNTHESIS AND CHARACTERIZATION: COMPOSITE OF GRAPHENE OXIDE BASED PALM KERNEL SHELL WASTE WITH FE3O4

2021 ◽  
Vol 22 (2) ◽  
pp. 101
Author(s):  
Bernadeta Ayu Widyaningrum ◽  
Dita Apriani ◽  
Putri Amanda ◽  
Ismadi Ismadi ◽  
Sutanto Sutanto
Keyword(s):  
Raman Spectroscopy ◽  
Graphene Oxide ◽  
Palm Kernel ◽  
Energy Dispersive Spectrum ◽  
Energy Dispersive ◽  
Synthesis And Characterization ◽  
Palm Kernel Shell ◽  
Shell Waste ◽  
Ft Ir ◽  
Co Precipitation

SYNTHESIS AND CHARACTERIZATION: COMPOSITE OF GRAPHENE OXIDE BASED PALM KERNEL SHELL WASTE WITH Fe3O4. In this study, GO-Fe3O4 were fabricated by co-precipitation technique and the graphene oxide (GO) were synthesized from an agricultural biomass, palm kernel shell, via Hummer’s method. Field Emission Scanning Electron Microscopy and Energy Dispersive Spectrum (FESEM-EDS), Fourier Transform Infra-Red (FT-IR) spectroscopy, X-Ray Diffractometer (XRD), and Raman spectroscopy were used to analysis the successful attachment of Fe3O4 onto the surface of GO. Morphology observation showed that Fe3O4 were heterogeneously deposited on the surface of GO. FT-IR spectra shows peak that incorporated to oxygenated functional groups and sharp peak at 586 cm-1 confirmed to lattice absorption of Fe3O4. The percentage of composition of GO-Fe3O4 was characterized by energy dispersive spectroscopy and the results also confirmed in XRD exhibits similar properties with JCPDS 19-0629 for magnetite more dominant than GO. From Raman spectroscopy analysis shows that 1343.82 cm-1 (D-band) and 1584.62 cm-1 (G-band) and 2698 cm-1 (2D-band) indicates GO and GO-Fe3O4 were successfully synthesized.

Facile synthesis of ultrathin and perpendicular NiMn2O4 nanosheets on reduced graphene oxide as advanced electrodes for supercapacitors

2018 ◽  
Vol 5 (7) ◽  
pp. 1714-1720 ◽  
Author(s):  
Long Li ◽  
Hongli Hu ◽  
Shujiang Ding
Keyword(s):  
Graphene Oxide ◽  
Energy Storage ◽  
Thermal Treatment ◽  
Reduced Graphene Oxide ◽  
Treatment Process ◽  
Facile Synthesis ◽  
Storage Performance ◽  
Reduced Graphene ◽  
Co Precipitation ◽  
Electrodes For Supercapacitors

A NiMn2O4 NSs@rGO nanocomposite was successfully fabricated through a facile co-precipitation and thermal treatment process, which exhibits enhanced energy storage performance.

Robust and Flexible Optically Active 2D Membranes Based on Encapsulation of Liquid Crystals in Graphene Oxide Pockets

2021 ◽  
pp. 2101432
Author(s):  
Musen Chen ◽  
Shan Min Goh ◽  
Kou Yang ◽  
Anna A. Nikitina ◽  
Siyu Chen ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Liquid Crystals ◽  
Optically Active

Reduced Graphene Oxide Supported Molybdenum Oxide Hybrid Nanocomposites: High Performance Electrode Material for Supercapacitor and Photocatalytic Applications

2020 ◽  
Vol 20 (7) ◽  
pp. 4035-4046
Author(s):  
Rengasamy Dhanabal ◽  
Dhanasekaran Naveena ◽  
Sivan Velmathi ◽  
Arumugam Chandra Bose
Keyword(s):  
Electron Microscopy ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Photoelectron Spectroscopy ◽  
Diffuse Reflectance Spectroscopy ◽  
Hybrid Nanocomposites ◽  
X Ray ◽  
Supercapacitor Application ◽  
Quenching Effect ◽  
Reduced Graphene

Using a simple solution based synthesis route, hexagonal MoO3 (h-MoO3) nanorods on reduced graphene oxide (RGO) sheets were prepared. The structure and morphology of resulting RGO-MoO3 nanocomposite were characterized using X-ray diffraction (XRD), Raman spectroscopy, Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), transmission electron microscopy (TEM) and field emission scanning electron microscopy (FESEM). The optical property was studied using UV-Visible diffuse reflectance spectroscopy (UV-Vis DRS) and photoluminescence spectroscopy (PL). The RGO-MoO3 nanocomposites were used as an electrode for supercapacitor application and photocatalyst for photodegradation of methylene blue (MB) and rhodamine B (RhB) under visible light irradiation. We demonstrated that the RGO-MoO3 electrode is capable of delivering high specific capacitance of 134 F/g at current density of 1 A/g with outstanding cyclic stability for 2000 cycles. The RGOMoO3 photocatalyst degrades 95% of MB dye within 90 min, and a considerable recyclability up to 4 cycles was observed. The quenching effect of scavengers test confirms holes are main reactive species in the photocatalytic degradation of MB. Further, the charge transfer process between RGO and MoO3 was schematically demonstrated.

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