نتایج جستجو برای: cu2o tio2

تعداد نتایج: 23763  

2017
Xiangmao Dong Kun Wang Chongjun Zhao Xiuzhen Qian Shi Chen Zhen Li S X. Dou Huakun Liu Shixue Dou

Reduced graphene oxide/cuprous oxide (RGO/Cu2O) composite films were directly synthesized on the surface of copper foil substrates through a straight redox reaction between GO and Cu foil via a hydrothermal approach. Characterization of the resultant composites with X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, and field emission scanning electron microscope (FESEM) c...

2016
Yuyuan Wang Min Zheng Shengnan Liu Zuoshan Wang

Au@Cu2O cuboctahedron with gold triangular nanoplate core and Cu2O shell was synthesized by a chemical method. X-ray diffraction (XRD) and transmission electron microscopy (TEM) tests demonstrated that the as-synthesis samples were consisted of gold triangular nanoplate core and Cu2O shell, and both of them were in good crystallization. The effective size control of the particles could be reali...

Journal: :Nanoscale 2017
Dekai Zhou Yuguang C Li Pengtao Xu Nicholas S McCool Longqiu Li Wei Wang Thomas E Mallouk

Visible light driven Cu2O-Au micromotors exhibit rapid on/off switching and speed control. Electrochemical measurements confirm that the light-induced movement of the Cu2O-Au micromotors involves a self-electrophoresis mechanism modulated by the photoconductivity of Cu2O. This study extends the utilization of the electromagnetic spectrum for micro/nanomotors into the visible range.

Journal: :Catalysts 2022

Nanosized titanium dioxide (TiO2) is currently being actively studied by the global scientific community, since it has a number of properties that are important from practical point view. One these large specific surface, which makes this material promising for use in photocatalysts, sensors, solar cells, etc. In work, we prepared photocatalysts based on TiO2 nanotubes converting carbon (CO2) i...

2014
Xiaoqiang An Kimfung Li Junwang Tang

A facile one-step microwave-assisted chemical method has been successfully used for the synthesis of Cu2O/reduced graphene oxide (RGO) composites. Photocatalytic CO2 reduction was then investigated on the junction under ambient conditions. The RGO coating dramatically increases Cu2O activity for CO2 photoreduction to result in a nearly six times higher activity than the optimized Cu2O and 50 ti...

2015
Ling Gao Chao Pang Dafang He Liming Shen Arunava Gupta Ningzhong Bao

A series of novel hierarchical nanoporous microstructures have been synthesized through one-step chemical reduction of micron size Cu2O and Co3O4 particles. By controlling the reduction time, non-porous Cu2O microcubes sequentially transform to nanoporous Cu/Cu2O/Cu dented cubic composites and hollow eightling-like Cu microparticles. The mechanism involved in the complex structural evolution is...

Journal: :Entropy 2015
Xingxing Li Huanfeng Tang Xianrui Lu Shi Lin Lili Shi Zaiyin Huang

Cuprous oxide (Cu2O) nanocubes were synthesized by reducing Cu(OH)2 in the presence of sodium citrate at room temperature. The samples were characterized in detail by field-emission scanning electron microscopy, transmission electron microscopy, high-resolution transmission electron microscopy, X-ray powder diffraction, and N2 absorption (BET specific surface area). The equations for acquiring ...

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