Self-assembled Three-dimensional Hierarchical BiVO4Microspheres from Nanoplates: Malic Acid-assisted Hydrothermal Synthesis and Photocatalytic Activities

2009 ◽  
Vol 38 (10) ◽  
pp. 962-963 ◽  
Author(s):  
Dekun Ma ◽  
Shun Wang ◽  
Ping Cai ◽  
Jinglu Jiang ◽  
Dongpeng Yang ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Malic Acid ◽  
Three Dimensional ◽  
Photocatalytic Activities ◽  
Self Assembled

scholarly journals Hydrothermal synthesis of mpg-C3N4 and Bi2WO6 nest-like structure nanohybrids with enhanced visible light photocatalytic activities

RSC Advances ◽  
2017 ◽  
Vol 7 (61) ◽  
pp. 38682-38690 ◽  
Author(s):  
Xingwang Zhu ◽  
Jinyuan Liu ◽  
Zhenzhen Zhao ◽  
Jia Yan ◽  
Yuanguo Xu ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Visible Light ◽  
Three Dimensional ◽  
Anisotropic Growth ◽  
Two Dimensional ◽  
Photocatalytic Activities ◽  
Self Assembled ◽  
2D Nanosheets ◽  
Visible Light Photocatalytic

Due to the anisotropic growth of Bi2WO6, the zero-dimensional (0D) nanoparticles can be transformed into two-dimensional (2D) nanosheets, and finally self-assembled into three-dimensional (3D) nest-like structures.

Hydrothermal Synthesis of Three-Dimensional Hierarchical ZnO Nanoflowers and Photocatalytic Activities for Organic Dyes

2014 ◽  
Vol 13 (03) ◽  
pp. 1450023 ◽  
Author(s):  
Xian Zhang ◽  
Fengqiong Shi
Keyword(s):  
Hydrothermal Synthesis ◽  
Growth Process ◽  
Organic Dyes ◽  
Three Dimensional ◽  
Synthetic Approach ◽  
Zno Nanostructure ◽  
Photocatalytic Activities ◽  
Series Of Experiments

We have successfully synthesized three-dimensional (3D) hierarchical ZnO nanostructure through a simple hydrothermal synthetic approach, namely nanoflowers. We have also studied the growth process of nanoflowers based on a series of experiments. In addition, the comparative photocatalytic studies showed the photocatalytic activities of the nanoflowers are obviously over two times than that of nanorods in the photodegradation of organic dyes.

Nanoscale Self-Assembly Using Ion and Electron Beam Techniques: A Rapid Review

MRS Advances ◽  
2020 ◽  
Vol 5 (64) ◽  
pp. 3507-3520
Author(s):  
Chunhui Dai ◽  
Kriti Agarwal ◽  
Jeong-Hyun Cho
Keyword(s):  
Electron Beam ◽  
Self Assembly ◽  
Ion Beam ◽  
Three Dimensional ◽  
The Self ◽  
Stress Generation ◽  
Rapid Review ◽  
High Yield ◽  
3D Nanostructures ◽  
Self Assembled

AbstractNanoscale self-assembly, as a technique to transform two-dimensional (2D) planar patterns into three-dimensional (3D) nanoscale architectures, has achieved tremendous success in the past decade. However, an assembly process at nanoscale is easily affected by small unavoidable variations in sample conditions and reaction environment, resulting in a low yield. Recently, in-situ monitored self-assembly based on ion and electron irradiation has stood out as a promising candidate to overcome this limitation. The usage of ion and electron beam allows stress generation and real-time observation simultaneously, which significantly enhances the controllability of self-assembly. This enables the realization of various complex 3D nanostructures with a high yield. The additional dimension of the self-assembled 3D nanostructures opens the possibility to explore novel properties that cannot be demonstrated in 2D planar patterns. Here, we present a rapid review on the recent achievements and challenges in nanoscale self-assembly using electron and ion beam techniques, followed by a discussion of the novel optical properties achieved in the self-assembled 3D nanostructures.

scholarly journals Hydrothermal Synthesis, Characterization and Exploration of Photocatalytic Activities of Polyoxometalate: Ni-CoWO4 Nanoparticles

Crystals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 456
Author(s):  
Fahad A. Alharthi ◽  
Hamdah S. Alanazi ◽  
Amjad Abdullah Alsyahi ◽  
Naushad Ahmad
Keyword(s):  
Electron Microscopy ◽  
Hydrothermal Synthesis ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Electron ◽  
Structure Morphology ◽  
Photocatalytic Activities ◽  
Ft Ir ◽  
Photocatalytic Reactions ◽  
Cobalt Tungstate

This study demonstrated the hydrothermal synthesis of bimetallic nickel-cobalt tungstate nanostructures, Ni-CoWO4 (NCW-NPs), and their phase structure, morphology, porosity, and optical properties were examined using X-ray Diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), Scanning electron microscopy- energy dispersive X-ray spectroscopy (SEM-EDS), high resolution Transmission electron microscopy (HR-TEM), Brunauer-Emmett-Teller (BET) and Raman instruments. It was found that as-calcined NCW-NPs have a monoclinic phase with crystal size ~50–60 nm and is mesoporous. It possessed smooth, spherical, and cubic shape microstructures with defined fringe distance (~0.342 nm). The photocatalytic degradation of methylene blue (MB) and rose bengal (RB) dye in the presence of NCW-NPs was evaluated, and about 49.85% of MB in 150 min and 92.28% of RB in 90 min degraded under visible light. In addition, based on the scavenger’s study, the mechanism for photocatalytic reactions is proposed.

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