Preparation and Photothermal Conversion Performance of Submicron Ti4O7

被引：0
|
作者：
Ma C. [1 ,2 ]
Li X. [2 ]
Zhang H. [2 ]
Li J. [2 ]
Zhao J. [1 ]
He G. [3 ]
Li J. [2 ]
Qi T. [2 ]
机构：
[1] School of Materials Science and Engineering, Hebei University of Technology, Tianjin
[2] CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing
[3] Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing
来源：
Cailiao Daobao/Materials Review | 2018年 / 32卷 / 12期
关键词：
Ball-milling; Photothermal conversion efficiency; Solar steam generation efficiency; Submicron Ti[!sub]4[!/sub]O[!sub]7[!/sub;
D O I：
10.11896/j.issn.1005-023X.2018.23.008
中图分类号：
学科分类号：
摘要：
Photothermal conversion is considered to be the efficient solar energy utilization technology, which is highly dependent on solar absorption capacity of photothermal conversion materials. In this paper, the method of ball-milling was used to obtain submicron Ti4O7 powders. Scanning electron microscopy (SEM), laser particle size analyzer, X-ray diffractometry (XRD), and scanning calorimetry (DSC) were used to characterize the morphology, compositions of samples, and absorption spectrum was measured by UV-Vis-NIR spectrophotometer, and the photothermal conversion efficiency was performed by solar light simulator. The results showed that the Ti4O7 with particle size of ~0.35 μm were obtained, and its solar light absorption capacity was about 89.5%. Importantly, they can efficiently convert solar energy to thermal energy with photothermal conversion efficiency of 73.7%. When the submicron Ti4O7 was floating on the surface of the water, solar water vapor generation efficiency was increased by 2.15 times compared to the efficiency that submicron Ti4O7 was absent in the solar evaporation water experiment. Therefore, the submicron Ti4O7 is very promising photothermal conversion material. © 2018, Materials Review Magazine. All right reserved.
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页码：4079 / 4083and4099
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