Self-Assembly of Nanosized 0D Clusters: CdS Quantum Dot-Polyoxotungstate Nanohybrids with Strongly Coupled Electronic Structures and Visible-Light-Active Photofunctions

2011 ◽  
Vol 17 (35) ◽  
pp. 9626-9633 ◽  
Author(s):  
Hyo Na Kim ◽  
Tae Woo Kim ◽  
Kyong-Hoon Choi ◽  
In Young Kim ◽  
Yong-Rok Kim ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Visible Light ◽  
Self Assembly ◽  
Electronic Structures ◽  
Strongly Coupled ◽  
Cds Quantum Dot ◽  
Visible Light Active

Assembly of a CdS quantum dot–TiO2 nanobelt heterostructure for photocatalytic application: towards an efficient visible light photocatalyst via facile surface charge tuning

2015 ◽  
Vol 39 (1) ◽  
pp. 279-286 ◽  
Author(s):  
Junyu Zhang ◽  
Fang-Xing Xiao ◽  
Guangcan Xiao ◽  
Bin Liu
Keyword(s):  
Quantum Dot ◽  
Visible Light ◽  
Surface Charge ◽  
Self Assembly ◽  
Photocatalytic Performance ◽  
Visible Light Photocatalyst ◽  
Photocatalytic Application ◽  
Cds Quantum Dot

CdS QD sensitized TiO2 nanobelt nanostructures were fabricated by a facile self-assembly approach and the photocatalytic performance of the well-defined hybrid heterostructure was systematically probed.

Nanoengineered CdSe quantum dot–montmorillonite composites: an efficient photocatalyst under visible light irradiation

RSC Advances ◽  
2014 ◽  
Vol 4 (68) ◽  
pp. 35997-36005 ◽  
Author(s):  
Rajeev C. Chikate ◽  
Brijesh S. Kadu ◽  
Madhura A. Damle
Keyword(s):  
Quantum Dot ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Irradiation ◽  
Self Assembly ◽  
Indigo Carmine ◽  
Light Irradiation ◽  
Uniform Dispersion ◽  
Cdse Quantum Dot

Intercalated CdSe–CTAB–MMT nanocomposites with uniform dispersion of CdSe QD's are fabricated by a facile self-assembly approach that significantly enhances visible light induced photocatalytic degradation of Indigo Carmine.

A stable Bi2S3 quantum dot–glass nanosystem: size tuneable photocatalytic hydrogen production under solar light

RSC Advances ◽  
2015 ◽  
Vol 5 (72) ◽  
pp. 58485-58490 ◽  
Author(s):  
Sunil R. Kadam ◽  
Rajendra P. Panmand ◽  
Ravindra S. Sonawane ◽  
Suresh W. Gosavi ◽  
Bharat B. Kale
Keyword(s):  
Hydrogen Production ◽  
Quantum Dot ◽  
Visible Light ◽  
Glass Matrix ◽  
Active Catalyst ◽  
Solar Light ◽  
Photocatalytic Hydrogen Production ◽  
Visible Light Active

Herein, we have demonstrated the growth of uniformly distributed Bi2S3 QDs in a glass matrix as a visible light active catalyst for efficient solar H2 production.

Microfluidic Assembly of Quantum Dot Micelles

2007 ◽  
Author(s):  
Greg Schabas ◽  
Matthew G. Moffitt ◽  
David Sinton
Keyword(s):  
Particle Size ◽  
Block Copolymer ◽  
Quantum Dot ◽  
Self Assembly ◽  
Cds Quantum Dot ◽  
Microfluidic Assembly ◽  
On Chip ◽  
Polymer Stabilized ◽  
Step Control ◽  
Chip Analysis

The controlled self-assembly of polymer-stabilized CdS quantum dot nanoparticles into quantum dot compound micelles (QDCMs) using microfluidics is demonstrated. In a flow-focusing configuration, water is introduced to a blend solution of block copolymer-stabilized quantum dots with amphiphilic block copolymer stabilizing chains. QDCM assembly via initial phase separation and subsequent agglomeration continue until a downstream quench step. Control over mean particle size and size distribution characteristics is demonstrated via both inlet concentrations and flow rate. The QDCMs assembled through this method are stable in aqueous solutions, and show internal and external structure in keeping with previous assembly methods. The on-chip evolution of QDCM formation and growth is resolved through fluorescence scattering. Particle size distributions and associated statistics are determined through off-chip analysis.

Facile decoration of CdS nanoparticles on TiO2: robust photocatalytic activity under LED illumination

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Maryam Fatolah ◽  
Gholam Reza Khayati
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Self Assembly ◽  
Aqueous Media ◽  
Cds Nanoparticles ◽  
Block Polymer ◽  
Main Crystalline Phase ◽  
Visible Light Active ◽  
Evaporation Induced Self Assembly ◽  
Cds Nanocomposites

Abstract A facile approach is presented to obtain visible-light-active TiO2/CdS nanocomposites with visible-light photocatalytic activity. Ordered nanospheres of TiO2 (with anatase as the main crystalline phase) were synthesized using evaporation-induced self-assembly (EIS) with P123 block polymer without any hazardous additives. Then, a rapid microwave (MW) protocol was used to obtain visible-light-absorbing nanocomposites between TiO2 and CdS in just 10 s. Based on Rietveld refinements of X-ray diffractrograms and elemental analysis it was found that nanoparticles of CdS are mainly decorated between the nanospheres of TiO2, which can simultaneously improve light absorption and suppress the unwanted photo-corrosion effects. The prepared nanocomposites were put to test for the removal of malachite green as a model pollutant from aqueous media under irradiation. The results revealed, that excessive loading results in unwanted surface covering and less than ideal activity, but for the sample with optimized loading, about 86 and 77% of the pollutant was degraded after 100 min of illumination at room temperature under the xenon short-arc and LED illumination, respectively.

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