A feasible strategy to balance the crystallinity and specific surface area of metal oxide nanocrystals

作者：Zhang, Q. P.; Xu, X. N.; Liu, Y. T.; Xu, M.^*; Deng, S. H.; Chen, Y.; Yuan, H.; Yu, F.; Huang, Y.; Zhao, K.; Xu, S.; Xiong, G.^*

来源：Scientific Reports, 2017, 7(1): 46424.

DOI：10.1038/srep46424

• POLYMER-ASSISTED-DEPOSITION
• GAS-SENSING APPLICATIONS
• PHOTOCATALYTIC ACTIVITY
• ZNO NANOPARTICLES
• DEFECTS
• WATER
• NO2
• ARCHITECTURES
• ADSORPTION
• LUMINESCENCE

Practical, efficient synthesis of metal oxide nanocrystals with good crystallinity and high specific surface area by a modified polymer-network gel method is demonstrated, taking ZnO nanocrystals as an example. A novel stepwise heat treatment yields significant improvement in crystal quality. Such nanophase materials can effectively degrade common organic dyes under solar radiation and can perform very well in photo-assisted detection of NO2 gas. Other typical metal oxide nanocrystals with good crystallinity and high specific surface area were also synthesized successfully under similar conditions. This work provides a general strategy for the synthesis of metal oxide nanocrystals, balancing the crystallinity and specific surface area.

• 出版日期2017-4-24
• 单位西南民族大学; 南阳理工学院