The surface plasmon resonance, thermal, support and size effect induced photocatalytic activity enhancement of Au/reduced graphene oxide for selective oxidation of benzylic alcohols

2017 ◽  
Vol 19 (46) ◽  
pp. 31389-31398 ◽  
Author(s):  
Yanhui Zhang ◽  
Hongxu Guo ◽  
Wen Weng ◽  
Ming-Lai Fu
Keyword(s):  
Photocatalytic Activity ◽  
Graphene Oxide ◽  
Surface Plasmon Resonance ◽  
Size Effect ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Size Effects ◽  
Benzylic Alcohols ◽  
Reduced Graphene ◽  
Activity Enhancement

The SPR, thermal, support, and size effects of Au/RGO are demonstrated to play an important role in enhancing the photocatalytic activity.

scholarly journals Boron-Doped Reduced Graphene Oxide with Tunable Bandgap and Enhanced Surface Plasmon Resonance

Molecules ◽  
2020 ◽  
Vol 25 (16) ◽  
pp. 3646 ◽  
Author(s):  
Muhammad Junaid ◽  
M. H. Md Khir ◽  
Gunawan Witjaksono ◽  
Nelson Tansu ◽  
Mohamed Shuaib Mohamed Saheed ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
High Performance ◽  
Light Sensing ◽  
Tunable Bandgap ◽  
Boron Doped ◽  
Reduced Graphene ◽  
Enhanced Surface

Graphene and its hybrids are being employed as potential materials in light-sensing devices due to their high optical and electronic properties. However, the absence of a bandgap in graphene limits the realization of devices with high performance. In this work, a boron-doped reduced graphene oxide (B-rGO) is proposed to overcome the above problems. Boron doping enhances the conductivity of graphene oxide and creates several defect sites during the reduction process, which can play a vital role in achieving high-sensing performance of light-sensing devices. Initially, the B-rGO is synthesized using a modified microwave-assisted hydrothermal method and later analyzed using standard FESEM, FTIR, XPS, Raman, and XRD techniques. The content of boron in doped rGO was found to be 6.51 at.%. The B-rGO showed a tunable optical bandgap from 2.91 to 3.05 eV in the visible spectrum with an electrical conductivity of 0.816 S/cm. The optical constants obtained from UV-Vis absorption spectra suggested an enhanced surface plasmon resonance (SPR) response for B-rGO in the theoretical study, which was further verified by experimental investigations. The B-rGO with tunable bandgap and enhanced SPR could open up the solution for future high-performance optoelectronic and sensing applications.

Synthesis of a Pt/reduced graphene oxide/polydopamine composite material for localized surface plasmon resonance and methanol electrocatalysis

2018 ◽  
Vol 42 (24) ◽  
pp. 19458-19466 ◽  
Author(s):  
Hongtao Wang ◽  
Shixiang Lu ◽  
Wenguo Xu ◽  
Bei Wu ◽  
Ge He ◽  
...  
Keyword(s):  
Composite Material ◽  
Graphene Oxide ◽  
Surface Plasmon Resonance ◽  
Reduced Graphene Oxide ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Localized Surface Plasmon ◽  
Cycle Stability ◽  
Reduced Graphene

Pt NPs are synthesized and loaded with rGO onto ITO using polydopamine. The strongest LSPR effect corresponds to the optimal catalyst. The catalyst has a good anti-poison property against CO and shows good cycle stability.

scholarly journals Quantitative and Selective Surface Plasmon Resonance Response Based on a Reduced Graphene Oxide–Polyamidoamine Nanocomposite for Detection of Dengue Virus E-Proteins

Nanomaterials ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 569 ◽  
Author(s):  
Nur Alia Sheh Omar ◽  
Yap Wing Fen ◽  
Jaafar Abdullah ◽  
Amir Reza Sadrolhosseini ◽  
Yasmin Mustapha Kamil ◽  
...  
Keyword(s):  
Thin Film ◽  
Graphene Oxide ◽  
Surface Plasmon Resonance ◽  
Dengue Virus ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
E Proteins ◽  
Spr Sensor ◽  
Amine Functionalized ◽  
Reduced Graphene

Dengue viral infection is one of the most common deadliest diseases and has become a recurrent issue for public health in tropical countries. Although the spectrum of clinical diagnosis and treatment have recently been established, the efficient and rapid detection of dengue virus (DENV) during viremia and the early febrile phase is still a great challenge. In this study, a dithiobis (succinimidyl undecanoate, DSU)/amine-functionalized reduced graphene oxide-–polyamidoamine dendrimer (DSU/amine-functionalized rGO–PAMAM) thin film-based surface plasmon resonance (SPR) sensor was developed for the detection of DENV 2 E-proteins. Different concentrations of DENV 2 E-proteins were successfully tested by the developed SPR sensor-based system. The performance of the developed sensor showed increased shift in the SPR angle, narrow full-width–half-maximum of the SPR curve, high detection accuracy, excellent figure of merit and signal-to-noise ratio, good sensitivity values in the range of 0.08–0.5 pM (S = 0.2576°/pM, R2 = 0.92), and a high equilibrium association constant (KA) of 7.6452 TM−1. The developed sensor also showed a sensitive and selective response towards DENV 2 E-proteins compared to DENV 1 E-proteins and ZIKV (Zika virus) E-proteins. Overall, it was concluded that the Au/DSU/amine-functionalized rGO–PAMAM thin film-based SPR sensor has potential to serve as a rapid clinical diagnostic tool for DENV infection.

scholarly journals Enhancement of laser action in ZnO nanorods assisted by surface plasmon resonance of reduced graphene oxide nanoflakes

2012 ◽  
Vol 20 (S6) ◽  
pp. A799 ◽  
Author(s):  
Shih-Hao Cheng ◽  
Yun-Chieh Yeh ◽  
Meng-Lin Lu ◽  
Chun-Wei Chen ◽  
Yang-Fang Chen
Keyword(s):  
Graphene Oxide ◽  
Surface Plasmon Resonance ◽  
Reduced Graphene Oxide ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Zno Nanorods ◽  
Laser Action ◽  
Reduced Graphene

scholarly journals Reduced Graphene Oxide/Maghemite Nanocomposite for Detection of Hydrocarbon Vapor Using Surface Plasmon Resonance

2016 ◽  
Vol 8 (4) ◽  
pp. 1-9 ◽  
Author(s):  
A. A. Alwahib ◽  
A. R. Sadrolhosseini ◽  
M. N. An'amt ◽  
H. N. Lim ◽  
M. H. Yaacob ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Surface Plasmon Resonance ◽  
Reduced Graphene Oxide ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Reduced Graphene ◽  
Hydrocarbon Vapor
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