Graphene Oxide-Controlled Neutral-Versus Cationic-Form of a Red Emitting Dye: Enhancement of Fluorescence by Graphene Oxide

2021 ◽  
Author(s):  
Aloke Bapli ◽  
Soma Duley ◽  
Souvik Pandit ◽  
Debabrata Seth
Keyword(s):  
Graphene Oxide ◽  
Fluorescence Enhancement ◽  
Cationic Form

Fluorescence enhancement of fluorophores in neat solvents media in the presence of graphene oxide (GO) is less known. It is necessary to re-examine the role of GO from fundamental scientifc...

Anode modification of polymer light-emitting diode using graphene oxide interfacial layer: The role of ultraviolet-ozone treatment

2013 ◽  
Vol 103 (7) ◽  
pp. 073305 ◽  
Author(s):  
Xiao-Chen Jiang ◽  
Yan-Qing Li ◽  
Yan-Hong Deng ◽  
Qi-Qi Zhuo ◽  
Shuit-Tong Lee ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Interfacial Layer ◽  
Light Emitting Diode ◽  
Ozone Treatment ◽  
Light Emitting ◽  
Anode Modification ◽  
Polymer Light Emitting Diode

Multigenerational selection towards longevity changes the protective role of vitamin C against graphene oxide-induced oxidative stress in house crickets

2021 ◽  
pp. 117996
Author(s):  
Barbara Flasz ◽  
Marta Dziewięcka ◽  
Andrzej Kędziorski ◽  
Monika Tarnawska ◽  
Jan Augustyniak ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Graphene Oxide ◽  
Vitamin C ◽  
Protective Role

scholarly journals The role of graphene/graphene oxide in cement hydration

2021 ◽  
Vol 10 (1) ◽  
pp. 768-778
Author(s):  
Shaoqiang Meng ◽  
Xiaowei Ouyang ◽  
Jiyang Fu ◽  
Yanfei Niu ◽  
Yuwei Ma
Keyword(s):  
Graphene Oxide ◽  
Cement Paste ◽  
Cement Hydration ◽  
Isothermal Calorimetry ◽  
High Mobility ◽  
Nucleation And Growth ◽  
Early Hydration ◽  
Mobility Of Ions ◽  
Cement Surface

Abstract Graphene (G) and graphene oxide (GO) have been shown to significantly improve the mechanical properties of cement-based materials. In this study, the effect of the G/GO on cement hydration was investigated. First, the zeta potential of G/GO in simulated solutions was tested, and the interaction between G/GO’s surface and Ca2+ was explored. Subsequently, scanning electron microscopy was used to observe the morphology of C–S–H nucleation and growth on the cement surface in the cement paste containing G/GO. Furthermore, XRD and TGA analyses were carried out on the hydration products of the sample. At last, isothermal calorimetry was applied to investigate the influence of G/GO on the early hydration of cement. The results showed that the addition of G/GO significantly accelerates C–S–H nucleation and growth on the cement surface. It is indicated that the high mobility ions derived by G/GO in the cement paste dominate the reason for the accelerated hydration of cement. The presence of G, especially GO, facilitates the mobility of ions, especially Ca2+, thus enhances the interaction between the cement surface and the ions. This strong interaction promotes the C–S–H nucleation and growth, and therefore, the hydration of the cement.

The role of reduced graphene oxide as a “ 2D flexible crosslinking point” in composite hydrogels

2021 ◽  
Author(s):  
Shuang Xia ◽  
Shi Feng ◽  
Zejiang Deng ◽  
Qiuyu Liang ◽  
Xu Xiang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Composite Hydrogels ◽  
Reduced Graphene

Optimizing phthalocyanine based dye-sensitized solar cells: The role of reduced graphene oxide

2018 ◽  
Vol 246 ◽  
pp. 236-245 ◽  
Author(s):  
Francis Chindeka ◽  
Philani Mashazi ◽  
Jonathan Britton ◽  
Gertrude Fomo ◽  
David O. Oluwole ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Solar Cells ◽  
Reduced Graphene Oxide ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Reduced Graphene ◽  
Sensitized Solar Cells

Role of Graphene Oxide as a Sacrificial Interlayer for Enhanced Photoelectrochemical Water Oxidation of Hematite Nanorods

2015 ◽  
Vol 119 (34) ◽  
pp. 19996-20002 ◽  
Author(s):  
Alagappan Annamalai ◽  
Aravindaraj G. Kannan ◽  
Su Yong Lee ◽  
Dong-Won Kim ◽  
Sun Hee Choi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Water Oxidation ◽  
Photoelectrochemical Water Oxidation
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