Hydrothermal synthesis of zinc oxide-reduced graphene oxide nanocomposites for an electrochemical hydrazine sensor

RSC Advances ◽  
2015 ◽  
Vol 5 (29) ◽  
pp. 22935-22942 ◽  
Author(s):  
Junwei Ding ◽  
Shiying Zhu ◽  
Tao Zhu ◽  
Wei Sun ◽  
Qing Li ◽  
...  

A facile hydrothermal method is utilized to synthesize zinc oxide-reduced graphene oxide nanocomposites for an electrochemical hydrazine sensor.

RSC Advances ◽  
2015 ◽  
Vol 5 (7) ◽  
pp. 4905-4908 ◽  
Author(s):  
Yan Wu ◽  
Hanjin Luo ◽  
Xiaolu Jiang ◽  
Hou Wang ◽  
Junjie Geng

To improve the utilization efficiency of the Bi25FeO40 catalyst, Bi25FeO40-reduced graphene oxide (rGO) composite photo-catalysts were prepared by a facile hydrothermal method.


2016 ◽  
Vol 09 (05) ◽  
pp. 1650058 ◽  
Author(s):  
Huaping Wu ◽  
Ye Qiu ◽  
Junma Zhang ◽  
Guozhong Chai ◽  
Congda Lu ◽  
...  

The composites of sulphide and reduced graphene oxide (NiS/MoS2-rGO) were synthesized through a facile solvent-assisted hydrothermal method. The introduction of NiS was paramount not only in enhancing the conductivity of whole catalysts but also in modulating the layer structures of MoS2 with additional active sites. Moreover, the NiS and rGO functioned together in controlling the morphology of as-prepared composites, resulting in uniformly distributed NiS/MoS2 nanosheets perpendicular to rGO scaffold. This further contributed to the excellent hydrogen evolution performance of the composites with a small onset overpotential of 80[Formula: see text]mV and Tafel slope as low as 65[Formula: see text]mV/decade.


RSC Advances ◽  
2014 ◽  
Vol 4 (84) ◽  
pp. 44777-44785 ◽  
Author(s):  
Sanjit Saha ◽  
Milan Jana ◽  
Pranab Samanta ◽  
Naresh Chandra Murmu ◽  
Nam Hoon Kim ◽  
...  

Highly porous nano-structured Fe3O4 particles were successfully prepared on the surface of reduced graphene oxide (RGO) sheets through a one-step hydrothermal method.


2021 ◽  
Author(s):  
G. Praveen Kumar ◽  
Srinithi Subburaj ◽  
Shen-Ming Chen ◽  
Chandan Hunsur Ravikumar

In the present study, the influence of phase purity and crystallinity on the electrochemical properties of well-designed GdBiVO4@rGO nanocomposite has been fabricated by the facile hydrothermal method for the detection...


2019 ◽  
Vol 8 (2) ◽  
pp. 80-90
Author(s):  
A. A. Ebnalwaled ◽  
A. Abu El-Fadl ◽  
Muhammad A. Tuhamy

Reduced graphene oxide/zinc oxide (RGO/ZnO) nanocomposites were synthesized by facile hydrothermal method; this method consists of exfoliation of graphite with modified Hummer's method and synthesis of (RGO/ZnO) nanocomposites using hydrothermal method. X-ray diffraction, TEM and FT-IR spectroscopy were used for structure morphological characterization. Optical properties of the samples were studied by measuring their optical absorbance. It can be concluded from XRD analysis that there are improvements of crystallinity associated with the increase of the crystallite size, as well as the increase in both of the (Zn-O) bond length and unit cell volume with the increase of ZnO ratio in RGO/ZnO nanocomposites. The morphological studies confirmed that the scale of ZnO particles is large and the size distribution is not uniform in samples of RGO/ZnO and that most particles have average size of about 9 nm while some particles even have larger size. The optical absorption spectra show that the excitonic peak of the as-prepared samples is red shifted from 268 nm to 376 nm for reduced grapheme oxide (RGO) with the increase of ZnO ratio, and the optical band gap changes from 2.39 for pure RGO to 3.34 eV for pure ZnO. The effect of UV irradiation on the optical absorption nanocomposites at different UV doses was carried out using UV lamp.


Nanoscale ◽  
2022 ◽  
Author(s):  
Naveen Karuppusamy ◽  
Vinitha Mariyappan ◽  
Shen-Ming Chen ◽  
Rasu Ramachandran

In recent times metal tungstates have received a lot of attention in the various research field. Accordingly, the CaWO4/RGO (CW/RGO) nanocomposite was prepared by the facile hydrothermal method. The electrocatalytic...


RSC Advances ◽  
2017 ◽  
Vol 7 (57) ◽  
pp. 36000-36006 ◽  
Author(s):  
Yiqiao Huang ◽  
Chengling Zhu ◽  
Hui Pan ◽  
Da Xu ◽  
Tao Lu ◽  
...  

AgBr nanoparticles on boron-doped reduced graphene oxide aerogels (AgBr/B-RGO) are synthesized by a facile hydrothermal method, showing a superior performance in the photoreduction of toxic hexavalent chromium in aqueous media under visible light.


2015 ◽  
Vol 39 (7) ◽  
pp. 5150-5160 ◽  
Author(s):  
Yanfeng Tang ◽  
Xinlin Liu ◽  
Changchang Ma ◽  
Mingjun Zhou ◽  
Pengwei Huo ◽  
...  

Ternary RGO–CdS/ZnS heterostructures with enhanced visible-light photocatalytic activity have been prepared by a facile hydrothermal method.


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