One-pot wet chemical synthesis of reduced graphene oxide-zinc oxide nanocomposites for fast and selective ammonia sensing at room temperature

2021 ◽  
pp. 112965
Author(s):  
Sitakshi Gupta ◽  
Chhaya Ravikant ◽  
Amarjeet Kaur
Keyword(s):  
Zinc Oxide ◽  
Graphene Oxide ◽  
Chemical Synthesis ◽  
Reduced Graphene Oxide ◽  
Room Temperature ◽  
One Pot ◽  
Wet Chemical Synthesis ◽  
Ammonia Sensing ◽  
Reduced Graphene ◽  
Wet Chemical

scholarly journals Highly Efficient Photocatalysis by Zinc Oxide-Reduced Graphene Oxide (ZnO-rGO) Composite Synthesized via One-Pot Room-Temperature Chemical Deposition Method

2019 ◽  
Vol 2019 ◽  
pp. 1-11
Author(s):  
Roselle T. Ngaloy ◽  
Aixeen M. Fontanilla ◽  
Ma. S. Rebecca Soriano ◽  
Chelo S. Pascua ◽  
Yoshitaka Matsushita ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Zinc Oxide ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Room Temperature ◽  
Chemical Deposition ◽  
Deposition Method ◽  
One Pot ◽  
Reduced Graphene ◽  
Chemical Deposition Method

We synthesized zinc oxide-reduced graphene oxide (ZnO-rGO) composites using a one-pot chemical deposition method at room temperature. Zinc powder and graphene oxide (GO) of different mass ratios (1 : 1, 1 : 2, 1 : 5, 1 : 10, and 1 : 20 GO to Zn) were used as precursors in a mildly alkaline solution. UV-Vis spectroscopy was used to study the photocatalytic efficiency of the samples through the photodegradation of methylene blue (MB). UV-Vis measurements show the fast decomposition of methylene blue under UV light illumination with the best degradation efficiency of 97.7% within one hour, achieved with sample ZG2 (1 GO : 2 Zn mass ratio). The corresponding degradation rate was kZG2 = 0.1253 min−1, which is at least 5.5 times better than other existing works using hydrothermal methods. We argue that the excellent photodegradation of MB by ZG2 is due to the efficient charge separation brought about by the electronic interaction of the rGO with the ZnO and the formation of a Zn-O-C bond, as supported by XRD and Raman spectroscopy measurements.

Crystalline quality assessment, photocurrent response and optical properties of reduced graphene oxide uniformly decorated zinc oxide nanoparticles based on the graphene oxide concentration

RSC Advances ◽  
2015 ◽  
Vol 5 (65) ◽  
pp. 53117-53128 ◽  
Author(s):  
Majid Azarang ◽  
Ahmad Shuhaimi ◽  
M. Sookhakian
Keyword(s):  
Zinc Oxide ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Zinc Oxide Nanoparticles ◽  
Sol Gel ◽  
Degree Of Crystallinity ◽  
Oxide Nanoparticles ◽  
One Pot ◽  
Natural Surfactant ◽  
Reduced Graphene

Zinc oxide nanoparticles–reduced graphene oxide composites with a high degree of crystallinity and high dispersity were successfully synthesized via a facile sol–gel one-pot method in a starch environment as a natural surfactant for the fabrication of solar cell devices.

Surfactant-free synthesis of reduced graphene oxide supported porous PtAu alloyed nanoflowers with improved catalytic activity

2015 ◽  
Vol 3 (10) ◽  
pp. 5321-5327 ◽  
Author(s):  
Pei Song ◽  
Li-Li He ◽  
Ai-Jun Wang ◽  
Li-Ping Mei ◽  
Shu-Xian Zhong ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Reduced Graphene Oxide ◽  
Reduction Method ◽  
One Pot ◽  
Nitrophenol Reduction ◽  
Reduced Graphene ◽  
Wet Chemical ◽  
Co Reduction

A simple, facile one-pot wet-chemical co-reduction method was developed for synthesis of porous PtAu-nanoflowers/rGO with the assistance of p-aminopyridine. The as-prepared nanocomposites displayed excellent catalytic activity for 4-nitrophenol reduction.

One-pot synthesis of a reduced graphene oxide–zinc oxide sphere composite and its use as a visible light photocatalyst

2013 ◽  
Vol 229 ◽  
pp. 126-133 ◽  
Author(s):  
Huynh Ngoc Tien ◽  
Van Hoang Luan ◽  
Le Thuy Hoa ◽  
Nguyen Tri Khoa ◽  
Sung Hong Hahn ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Graphene Oxide ◽  
Visible Light ◽  
Reduced Graphene Oxide ◽  
One Pot ◽  
Visible Light Photocatalyst ◽  
One Pot Synthesis ◽  
Reduced Graphene
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