研究目的
Investigating the synthesis of Nb2O5 nanorod superstructures for enhanced photocatalytic H2 production activity.
研究成果
Nb2O5 nanorod superstructures exhibit superior photocatalytic H2 production activity compared to commercial Nb2O5 powders, attributed to their larger specific surface area and improved spatial separation of photogenerated charge carriers. This study provides insights into the design of nanocrystal superstructured photocatalysts for enhanced photocatalytic efficiency.
研究不足
The study focuses on the synthesis and photocatalytic activity of Nb2O5 nanorod superstructures under UV light irradiation. The applicability under visible light and the scalability of the synthesis method are potential areas for further research.
1：Experimental Design and Method Selection:
A facile hydrothermal route was used to synthesize monoclinic Nb2O5 nanorod superstructures using Sn2Nb2O7 nanoparticles as the precursor.
2：Sample Selection and Data Sources:
Sn2Nb2O7 nanoparticles were used as the precursor for the hydrothermal synthesis.
3：List of Experimental Equipment and Materials:
Teflon-lined autoclave, field emission SEM, transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), powder X-ray diffraction (XRD), UV-vis diffuse reflectance spectra, N2 adsorption/desorption measurements.
4：Experimental Procedures and Operational Workflow:
The precursor was dispersed in HCl aqueous solution and heated in a teflon-lined autoclave at 200°C for 12 h. The products were characterized by SEM, TEM, HRTEM, XRD, UV-vis spectroscopy, and N2 adsorption/desorption.
5：Data Analysis Methods:
The photocatalytic activity was evaluated by H2 evolution under UV light irradiation, and the photocurrent generation response was measured to detect the transport property of photogenerated charge carriers.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容-
Teflon-lined autoclave
Used for hydrothermal synthesis of Nb2O5 nanorod superstructures.
-
Field emission SEM
Used to detect the morphologies of the as-obtained Nb2O5 nanorod superstructures.
-
Transmission electron microscopy
Used to observe the detailed structure of Nb2O5 nanorod superstructures.
-
High-resolution transmission electron microscopy
Used to analyze the crystal structure of Nb2O5 nanorods.
-
Powder X-ray diffraction
Used to determine the crystal structures of the Sn2Nb2O7 precursor and as-obtained hydrothermally derived products.
-
UV-vis diffuse reflectance spectra
Used to measure the photoabsorption ability of Nb2O5 nanorod superstructures and commercial Nb2O5 powders.
-
N2 adsorption/desorption measurements
Used to determine the specific surface areas of samples.
-
登录查看剩余5件设备及参数对照表
查看全部
