MORPHOLOGICALLY CONTROLLED ELECTRODEPOSITION OF ZnO AND Cu2O BY THE COLLOIDAL CRYSTAL TEMPLATE METHOD

2009 ◽  
Vol 18 (04) ◽  
pp. 611-616 ◽  
Author(s):  
MING FU ◽  
AILUN ZHAO ◽  
JI ZHOU ◽  
DAWEI HE ◽  
YONGSHENG WANG
Keyword(s):  
Electrochemical Method ◽  
Colloidal Crystal ◽  
Colloidal Crystals ◽  
Template Method ◽  
Inverse Opal ◽  
Macroporous Materials ◽  
Colloidal Crystal Template ◽  
Colloidal Crystal Templating

This paper presents a versatile method for fabricating 3D macroporous materials using colloidal crystals as the templates. ZnO and Cu2O were deposited by the electrochemical method via the colloidal crystal template. Not only were 3D inverse opal structures and 2D nanobowls fabricated, but nanoparticles with a controlled shape were also prepared. Morphological controls via colloidal crystal templating are discussed.

A facile one-step synthesis of three-dimensionally ordered macroporous N-doped TiO2 with ethanediamine as the nitrogen source

2014 ◽  
Vol 2 (37) ◽  
pp. 15611-15619 ◽  
Author(s):  
Ting Wang ◽  
Xiaoqing Yan ◽  
Shishun Zhao ◽  
Bo Lin ◽  
Chao Xue ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Colloidal Crystal ◽  
Template Method ◽  
Macroporous Structure ◽  
Excellent Photocatalytic Activity ◽  
One Step ◽  
Colloidal Crystal Template ◽  
Ordered Macroporous

N-doped TiO2 with a three-dimensionally ordered macroporous structure was fabricated by a one-step colloidal crystal-template method, which showed excellent photocatalytic activity under visible-light irradiation.

scholarly journals Effects of Crystallinity on the Photocatalytic Polymerization of 3,4-Ethylenedioxythiophene over CsPbBr3 Inverse Opals

Catalysts ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1331
Author(s):  
Siwei Zhao ◽  
Shaohua Jin ◽  
Huanmin Liu ◽  
Shengfu Li ◽  
Kun Chen
Keyword(s):  
Colloidal Crystal ◽  
Three Dimensional ◽  
Inverse Opal ◽  
Porous Structures ◽  
Novel Approach ◽  
Transmission Electron ◽  
Hierarchical Porous ◽  
Antisolvent Crystallization ◽  
Colloidal Crystal Templating ◽  
High Absorption Coefficient

Due to their high absorption coefficient and long carrier lifetime, halide perovskites are promising candidates for photocatalysts. For this study, the antisolvent crystallization protocol and the colloidal crystal templating approach were combined to fabricate the highly crystalline cesium lead bromide perovskite with inverse opal morphology (IO-CsPbBr3). Scanning electron microscopy and transmission electron microscope images demonstrate the three-dimensional well-ordered porous structures of the IO-CsPbBr3 and their single-crystalline features. The presented approach not only provides hierarchical porous structures but also enhances overall crystallinity. When used as catalysts to promote the polymerization of 2,2′,5′,2″-ter-3,4-ethylenedioxythiophene, the highly crystalline IO-CsPbBr3 exhibits a superior photocatalytic performance compared to its polycrystalline counterpart. Furthermore, the morphology and the crystalline structure of the highly crystalline IO-CsPbBr3 are well preserved under photocatalytic conditions. This novel approach enables the preparation of a halide perovskite inverse opal with high crystallinity.

Preparation of colloidal crystal template for inverse opal hydrogels

2017 ◽  
Vol 25 (3) ◽  
pp. 251-258 ◽  
Author(s):  
Yunlu Pan ◽  
Xuezeng Zhao ◽  
Yingjie Liu ◽  
He Zhang
Keyword(s):  
Colloidal Crystal ◽  
Inverse Opal ◽  
Colloidal Crystal Template

scholarly journals Preparation of inverse opal zirconia

2018 ◽  
Vol 50 (3) ◽  
pp. 387-394
Author(s):  
Xiao-Peng Li ◽  
Li-Li Wang ◽  
Zai-Lei Gong ◽  
Xiu-Feng Wang ◽  
Ye-Ming Zhou
Keyword(s):  
Colloidal Crystal ◽  
Stop Band ◽  
Visible Region ◽  
Holding Time ◽  
Inverse Opal ◽  
Mass Ratio ◽  
Templating Method ◽  
Assembly Method ◽  
Precursor Ratio ◽  
Colloidal Crystal Templating

Inverse opal zirconia is useful in many ways because of their ability to combine several chemical and physical properties. In this research, polystyrene template was fabricated by self-assembly method and inverse opal zirconia was prepared by colloidal crystal-templating method. The process of preparation of inverse opal zirconia as well as effects on morphology and phase of as-prepared inverse opal zirconia were studied. The results showed precursor ratio of zirconium acetate and methanol, mass ratio of polystyrene templates and precursor and dipping times had remarkable influence on morphology of inverse opal zirconia. When the precursor ratio was 1:1; the mass ratio was 1:15 and dipped once, much better morphology of inverse opal zirconia was obtained. The mass ratio, sintering temperature and holding time had significant effect on crystallization of zirconia. Pure phase zirconia could be obtained when sintered at 600 oC, holding time was 2h and the mass ratio was 1:1. A distinguished single stop band in the visible region of the spectrum and unique structural color were observed in inverse opal zirconia, which will make this material promising candidate for novel pigment.

Construction of Defect-Engineered Three-Dimensionally Ordered Macroporous WO3 for Efficient Photocatalytic Water Oxidation Reaction

2021 ◽  
Author(s):  
Yating Wang ◽  
Chaosheng Peng ◽  
Tao Jiang ◽  
Jing Zhang ◽  
Zheng Jiang ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Water Oxidation ◽  
Charge Separation ◽  
Oxidation Reaction ◽  
Separation Efficiency ◽  
Colloidal Crystal ◽  
Template Method ◽  
Charge Separation Efficiency ◽  
Colloidal Crystal Template ◽  
Ordered Macroporous

To improve solar light harvesting and charge separation efficiency, we develop a facile strategy for synthesizing defect-engineered three-dimensionally ordered macroporous (3DOM) WO3 photonic crystals via colloidal crystal template method and...

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