Graphene Quantum Dots-Doped Thin Film Nanocomposite Polyimide Membranes with Enhanced Solvent Resistance for Solvent-Resistant Nanofiltration

2019 ◽  
Vol 11 (6) ◽  
pp. 6527-6540 ◽  
Author(s):  
Shuxuan Li ◽  
Can Li ◽  
Xiaojuan Song ◽  
Baowei Su ◽  
Bishnupada Mandal ◽  
...  
Keyword(s):  
Thin Film ◽  
Quantum Dots ◽  
Graphene Quantum Dots ◽  
Solvent Resistance ◽  
Thin Film Nanocomposite ◽  
Polyimide Membranes

Tannin-based thin-film composite membranes integrated with nitrogen-doped graphene quantum dots for butanol dehydration through pervaporation

2021 ◽  
Vol 623 ◽  
pp. 119077
Author(s):  
Rumwald Leo G. Lecaros ◽  
Reincess E. Valbuena ◽  
Lemmuel L. Tayo ◽  
Wei-Song Hung ◽  
Chien-Chieh Hu ◽  
...  
Keyword(s):  
Thin Film ◽  
Quantum Dots ◽  
Graphene Quantum Dots ◽  
Composite Membranes ◽  
Film Composite ◽  
Nitrogen Doped ◽  
Thin Film Composite ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

Optical and surface plasmon resonance sensing properties for chitosan/carboxyl-functionalized graphene quantum dots thin film

Optik ◽  
2019 ◽  
Vol 178 ◽  
pp. 802-812 ◽  
Author(s):  
Nur Syahira Md Ramdzan ◽  
Yap Wing Fen ◽  
Nur Alia Sheh Omar ◽  
Nur Ain Asyiqin Anas ◽  
Wan Mohd Ebtisyam Mustaqim Mohd Daniyal ◽  
...  
Keyword(s):  
Thin Film ◽  
Quantum Dots ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Graphene Quantum Dots ◽  
Functionalized Graphene ◽  
Sensing Properties

scholarly journals Highly sensitive surface plasmon resonance optical detection of ferric ion using CTAB/hydroxylated graphene quantum dots thin film

2020 ◽  
Vol 128 (8) ◽  
pp. 083105
Author(s):  
Nur Ain Asyiqin Anas ◽  
Yap Wing Fen ◽  
Nor Azah Yusof ◽  
Nur Alia Sheh Omar ◽  
Wan Mohd Ebtisyam Mustaqim Mohd Daniyal ◽  
...  
Keyword(s):  
Thin Film ◽  
Quantum Dots ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Optical Detection ◽  
Graphene Quantum Dots ◽  
Ferric Ion ◽  
Highly Sensitive

scholarly journals Investigating the Properties of Cetyltrimethylammonium Bromide/Hydroxylated Graphene Quantum Dots Thin Film for Potential Optical Detection of Heavy Metal Ions

Materials ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2591 ◽  
Author(s):  
Nur Ain Asyiqin Anas ◽  
Yap Wing Fen ◽  
Nor Azah Yusof ◽  
Nur Alia Sheh Omar ◽  
Nur Syahira Md Ramdzan ◽  
...  
Keyword(s):  
Thin Film ◽  
Heavy Metal ◽  
Quantum Dots ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Cetyltrimethylammonium Bromide ◽  
Graphene Quantum Dots ◽  
Atomic Force ◽  
The Fourier Transform ◽  
High Absorption

The modification of graphene quantum dots (GQDs) may drastically enhance their properties, therefore resulting in various related applications. This paper reported the preparation of novel cetyltrimethylammonium bromide/hydroxylated graphene quantum dots (CTAB/HGQDs) thin film using the spin coating technique. The properties of the thin film were then investigated and studied. The functional groups existing in CTAB/HGQDs thin film were confirmed by the Fourier transform infrared (FTIR) spectroscopy, while the atomic force microscope (AFM) displayed a homogenous surface of the thin film with an increase in surface roughness upon modification. Optical characterizations using UV-Vis absorption spectroscopy revealed a high absorption with an optical band gap of 4.162 eV. Additionally, the photoluminescence (PL) spectra illustrated the maximum emission peak of CTAB/HGQDs thin film at a wavelength of 444 nm. The sensing properties of the as-prepared CTAB/HGQDs thin film were studied using a surface plasmon resonance technique towards the detection of several heavy metal ions (HMIs) (Zn2+, Ni2+, and Fe3+). This technique generated significant results and showed that CTAB/HGQDs thin film has great potential for HMIs detection.

Tunable Ionic Conductivity and Photoluminescence in Quasi-2D CH3NH3PbBr3 Thin Film Incorporating Sulphur Doped Graphene Quantum Dots

2021 ◽  
Author(s):  
Ramesh Kumar ◽  
Jitendra Kumar ◽  
Sachin Kadian ◽  
Priya Srivastava ◽  
Gaurav Manik ◽  
...  
Keyword(s):  
Thin Film ◽  
Quantum Dots ◽  
Ionic Conductivity ◽  
Operating Temperature ◽  
Graphene Quantum Dots ◽  
Light Illumination ◽  
Applied Bias ◽  
Ion Migration ◽  
Doped Graphene ◽  
Halide Perovskites

Ion migration in hybrid halide perovskites is ubiquitous in all conditions. However, ionic conductivity can be manipulated by changing the material composition, operating temperature, light illumination, applied bias as well...

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