Fabrication and photocatalytic activity of graphitic-C3N4 quantum dot-decorated basic zinc carbonate prepared by co-precipitation method

2021 ◽  
Author(s):  
Ping Zhao ◽  
Bo Jin ◽  
Qingchun Zhang ◽  
Ru-Fang Peng
Keyword(s):  
Quantum Dots ◽  
Photocatalytic Activity ◽  
Quantum Yield ◽  
Carbon Nitride ◽  
Barbituric Acid ◽  
Functional Group ◽  
Precipitation Method ◽  
High Quantum Yield ◽  
Zinc Carbonate ◽  
Co Precipitation

Graphitic carbon nitride quantum dots (CNQDs) with high quantum yield (up to 43%) were synthesized by incorporating the unique organic functional group of barbituric acid into the framework of the...

High quantum yield graphene quantum dots decorated TiO2 nanotubes for enhancing photocatalytic activity

2016 ◽  
Vol 375 ◽  
pp. 230-241 ◽  
Author(s):  
Ailan Qu ◽  
Haolong Xie ◽  
Xinmei Xu ◽  
Yangyu Zhang ◽  
Shengwu Wen ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Photocatalytic Activity ◽  
Quantum Yield ◽  
Tio2 Nanotubes ◽  
Graphene Quantum Dots ◽  
High Quantum Yield ◽  
High Quantum

Photocatalytic Activity of Fe-Doped ZnO/Montmorillonite Nanocomposite for Degradation of Malachite Green

2015 ◽  
Vol 827 ◽  
pp. 19-24 ◽  
Author(s):  
Nur Afifah ◽  
Nadia Febiana Djaja ◽  
Rosari Saleh
Keyword(s):  
Photocatalytic Activity ◽  
Malachite Green ◽  
Organic Dyes ◽  
Uv Light ◽  
Precipitation Method ◽  
X Ray Diffraction ◽  
X Ray ◽  
Spin Resonance ◽  
Doped Zno ◽  
Co Precipitation

In this study, the photocatalytic activity of pure Fe- doped ZnO and Fe- doped ZnO/Montmorillonite nanocomposite has been investigated for the degradation of malachite green under UV light irradiation. Both photocatalysts were synthesized using co-precipitation method and characterized by X-ray diffraction, energy dispersive X-ray spectroscopy, Fourier-transform infrared absorption, and electron spin resonance. The results showed that the photocatalytic efficiency is better in the presence of montmorillonite compared to pure Fe- doped ZnO. To detect the possible reactive species involved in degradation of organic dyes control experiments with introducing scavengers into the solution of organic dyes were carried out. It is found that electron plays an important role in the degradation of malachite green.

Ultra-high quantum yield ultraviolet fluorescence of graphitic carbon nitride nanosheets

2019 ◽  
Vol 55 (100) ◽  
pp. 15065-15068 ◽  
Author(s):  
Zesheng Zhuo ◽  
Yajie Jiao ◽  
Lichan Chen ◽  
Haohong Li ◽  
Ming Dai ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
High Quantum Yield ◽  
High Quantum ◽  
Carbon Nitride Nanosheets

Small-sized graphitic carbon nitride nanosheets (CNNs) have been prepared to exhibit an ultra-high quantum yield (80.1%) ultraviolet fluorescence, which was proved to have originated from the abundant isolated melem units on the edge of CNNs.

Controlling the visible-light driven photocatalytic activity of alloyed ZnSe–AgInSe2 quantum dots for hydrogen production

2020 ◽  
Vol 8 (26) ◽  
pp. 13142-13149 ◽  
Author(s):  
Ping-Yen Hsieh ◽  
Tatsuya Kameyama ◽  
Takayuki Takiyama ◽  
Ko Masuoka ◽  
Takahisa Yamamoto ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Photocatalytic Activity ◽  
Quantum Yield ◽  
Hydrogen Production ◽  
Visible Light ◽  
Apparent Quantum Yield ◽  
Visible Light Driven

Alloyed ZnSe–AgInSe2 quantum dots were used as a photocatalyst for H2 production, showing an apparent quantum yield of 3.4% at 600 nm.

Plasmon–exciton systems with high quantum yield using deterministic aluminium nanostructures with rotational symmetries

Nanoscale ◽  
2019 ◽  
Vol 11 (42) ◽  
pp. 20315-20323 ◽  
Author(s):  
Landobasa Y. M. Tobing ◽  
Muhammad Danang Birowosuto ◽  
Kah Ee Fong ◽  
Yuan Gao ◽  
Jinchao Tong ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
High Quantum Yield ◽  
Purcell Factor ◽  
High Quantum ◽  
Single Antenna

We study the emission of quantum dots coupled with aluminium nanoantenna of C6 symmetry, and observe Purcell factor in the range of 68.01 < Fp < 118.25 corresponding to a modified quantum yield of >89% in the single antenna.

Facile synthesis and enhanced visible-light photocatalytic activity of graphitic carbon nitride decorated with ultrafine Fe2O3 nanoparticles

RSC Advances ◽  
2015 ◽  
Vol 5 (112) ◽  
pp. 92033-92041 ◽  
Author(s):  
Xin Liu ◽  
Ailing Jin ◽  
Yushuai Jia ◽  
Junzhe Jiang ◽  
Na Hu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Carbon Nitride ◽  
Photocatalytic Performance ◽  
Precipitation Method ◽  
Fe2o3 Nanoparticles ◽  
Facile Synthesis ◽  
Composite Photocatalyst ◽  
Visible Light Photocatalytic

An efficient composite photocatalyst fabricated by dispersing ultrafine Fe2O3 nanocrystals onto g-C3N4 nanosheets via a facile deposition-precipitation method shows significantly enhanced photocatalytic performance under visible light irradiation.

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