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Title: TiO2/antimony-doped tin oxide : highly water-dispersed nano composites with excellent IR insulation and super-hydrophilic property
Authors: Hu, Y 
Zhong, H 
Wang, Y
Lu, L 
Yang, H 
Issue Date: 2018
Source: Solar energy materials and solar cells, 2018, v. 174, p. 499-508
Abstract: In this work, a novel aqueous self-dispersed TiO2 is synthesized and then used to produce the highly water-dispersed ATO/TiO2 composite particles, which has strong IR insulation property. Thus, it can be used to block the solar radiative heat transfer in a building. The primary particle size of ATO/TiO2 composites detected by TEM ranges from 5 to 12 nm, but that of the initial ATO nano particles is more than 2 µm. A small amount of TiO2 (16.7% wt) increases the Zeta potential in water from 6.7 to 37.01 mV, which represents the stability is largely enhanced. The IR transmittance in IR band is decreased from 91% (original glass) to 4.3% (ATO 83.33% wt). The thermal performances of glass with such coatings are simulated based on Hong Kong climate situation. For the best sample, the electricity used in air-conditioning and lighting is 27% less than uncoated glass. Furthermore, the TiO2 makes the water contact angle of the coating ranging from 3 to 5.6°. Therefore, the coating film can be prevented from fouling due to super-hydrophilicity and have a longer life time.
Keywords: ATO
Heat insulation
Highly water-dispersed
IR insulation
Titanium dioxide
Publisher: Elsevier
Journal: Solar energy materials and solar cells 
ISSN: 0927-0248
DOI: 10.1016/j.solmat.2017.09.027
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