Composites of Metal Nanoparticles and TiO2Immobilized in Spherical Polyelectrolyte Brushes

Langmuir ◽  
2010 ◽  
Vol 26 (6) ◽  
pp. 4176-4183 ◽  
Author(s):  
Yan Lu ◽  
Thomas Lunkenbein ◽  
Johannes Preussner ◽  
Sebastian Proch ◽  
Josef Breu ◽  
...  
Keyword(s):  
Metal Nanoparticles ◽  
Polyelectrolyte Brushes ◽  
Spherical Polyelectrolyte Brushes

scholarly journals Spherical Polyelectrolyte Brushes as Templates to Prepare Hollow Silica Spheres Encapsulating Metal Nanoparticles

Nanomaterials ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 799 ◽  
Author(s):  
Qingsong Yang ◽  
Li Li ◽  
Fang Zhao ◽  
Yunwei Wang ◽  
Zhishuang Ye ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Metal Nanoparticles ◽  
Hollow Spheres ◽  
High Catalytic Activity ◽  
Silica Spheres ◽  
Hollow Silica ◽  
Polyelectrolyte Brushes ◽  
Hollow Silica Spheres ◽  
Potential Applications ◽  
Spherical Polyelectrolyte Brushes

Integrating hollow silica spheres with metal nanoparticles to fabricate multifunctional hybrid materials has attracted increasing attention in catalysis, detection, and drug delivery. Here, we report a simple and general method to prepare hollow silica spheres encapsulating silver nanoparticles (Ag@SiO2) based on spherical polyelectrolyte brushes (SPB), which consist of a polystyrene core and densely grafted poly (acrylic acid) (PAA) chains. SPB were firstly used as nanoreactors to generate silver nanoparticles in situ and then used as sacrificial templates to prepare hybrid hollow silica spheres. The resulted Ag@SiO2 composites exhibit high catalytic activity and good reusability for the reduction of 4-nitrophenol to 4-aminophenol by NaBH4. More importantly, this developed approach can be extended to the encapsulation of other metal nanoparticles such as gold nanoparticles into the hollow silica spheres. This work demonstrates that SPB are promising candidates for the preparation of hollow spheres with encapsulated metal nanoparticles and the resulted hybrid spheres show great potential applications in catalysis.

Spherical Polyelectrolyte Brushes as Carriers for Catalytically Active Metal Nanoparticles

2007 ◽  
Vol 254 (1) ◽  
pp. 42-45 ◽  
Author(s):  
M. Yu ◽  
Y. Lu ◽  
M. Schrinner ◽  
F. Polzer ◽  
M. Ballauff
Keyword(s):  
Metal Nanoparticles ◽  
Polyelectrolyte Brushes ◽  
Active Metal ◽  
Catalytically Active ◽  
Spherical Polyelectrolyte Brushes

Enrichment and distribution of counterions in spherical polyelectrolyte brushes probed by SAXS

2019 ◽  
Vol 57 (12) ◽  
pp. 738-747 ◽  
Author(s):  
Zhishuang Ye ◽  
Li Li ◽  
Fang Zhao ◽  
Yuchuan Tian ◽  
Yunwei Wang ◽  
...  
Keyword(s):  
Polyelectrolyte Brushes ◽  
Spherical Polyelectrolyte Brushes

Immobilized CdS quantum dots in spherical polyelectrolyte brushes: fabrication, characterization and optical properties

2015 ◽  
Vol 3 (15) ◽  
pp. 3745-3751 ◽  
Author(s):  
Yu Cang ◽  
Rui Zhang ◽  
Guixin Shi ◽  
Jianchao Zhang ◽  
Lixiao Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Cds Nanoparticles ◽  
Basic Solution ◽  
Cds Quantum Dots ◽  
Polyelectrolyte Brushes ◽  
Photochemical Stability ◽  
Spherical Polyelectrolyte Brushes

The SPB@CdS nanoparticles exhibit controllable and reversible photoluminescence with pH as a trigger and strong photochemical stability in basic solution.

Selective Adsorption and Separation of Organic Dyes with Spherical Polyelectrolyte Brushes and Compressed Carbon Dioxide

2017 ◽  
Vol 23 (55) ◽  
pp. 13696-13703 ◽  
Author(s):  
Rui Zhang ◽  
Zhenchuan Yu ◽  
Lei Wang ◽  
Qizhe Shen ◽  
Xiaoyan Hou ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Organic Dyes ◽  
Selective Adsorption ◽  
Polyelectrolyte Brushes ◽  
Compressed Carbon Dioxide ◽  
Spherical Polyelectrolyte Brushes

scholarly journals Preparation of Au/Ag multilayers via layer-by-layer self-assembly in spherical polyelectrolyte brushes and their catalytic activity

2015 ◽  
Vol 33 (10) ◽  
pp. 1421-1430 ◽  
Author(s):  
Fei Zhao ◽  
Li Li ◽  
Yu-chuan Tian ◽  
Jian-jia Liu ◽  
Jian-jun Wang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Self Assembly ◽  
Layer By Layer ◽  
Polyelectrolyte Brushes ◽  
Spherical Polyelectrolyte Brushes

Ultrabright dye-loaded spherical polyelectrolyte brushes and their fundamental structure-fluorescence tuning principles

Nanoscale ◽  
2019 ◽  
Vol 11 (29) ◽  
pp. 14050-14059 ◽  
Author(s):  
Hajar Masoomi ◽  
Yao Wang ◽  
Xiaoxia Fang ◽  
Peirui Wang ◽  
Cang Chen ◽  
...  
Keyword(s):  
Fluorescent Particle ◽  
Polyelectrolyte Brushes ◽  
Fundamental Structure ◽  
Spherical Polyelectrolyte Brushes

A novel ultrabright fluorescent particle based on dye-loaded polyelectrolyte brushes is successfully established and the structure-fluorescence tuning principles are revealed.

scholarly journals Adsorption of proteins on spherical polyelectrolyte brushes in aqueous solution

2003 ◽  
Vol 5 (8) ◽  
pp. 1671-1677 ◽  
Author(s):  
A. Wittemann ◽  
B. Haupt ◽  
M. Ballauff
Keyword(s):  
Aqueous Solution ◽  
Polyelectrolyte Brushes ◽  
Spherical Polyelectrolyte Brushes
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