Synthesis and characterization of porous TiO2 and its application in hydrophilic coatings

Wu, Zichen; Wang, Rui; Li, Dongyun; Sungao, Meilin; Xu, Yang; Ge, Hong Liang

doi:10.1007/s11998-023-00898-w

J Coat Technol Res

2024

DOI: 10.1007/s11998-023-00898-w

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Synthesis and characterization of porous TiO2 and its application in hydrophilic coatings

Zichen Wu,

Rui Wang,

Dongyun Li

et al.

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2024

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Cited by 2 publications

References 35 publications

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Development of hydrophilic multilayer structures for energy saving window applications using sol-gel spin coating

Yepuri,

Ramachandramurthy

2024

Results in Optics

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Development of hydrophilic multilayer structures for energy saving window applications using sol-gel spin coating

Yepuri,

Ramachandramurthy

2024

Results in Optics

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Size-Controlled LiDAR-Detectable Black Pigments: Comparative Study from the Nano- to the Micron-Scale

Kim,

Otgonbayar,

Jekal

et al. 2024

ACS Appl. Opt. Mater.

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Light detection and ranging (LiDAR) sensors emit pulsed nearinfrared (NIR) lasers toward targets and detect the reflected signals to measure the distance between LiDAR-equipped autonomous vehicles and surrounding objects. However, LiDAR sensors have difficulty recognizing black and dark objects owing to their intrinsic light absorption characteristics, including NIR light, which limits their practical application in autonomous driving environments. In this study, NIR-reflective silica/black titania core/shell (SBT/CS) pigments of various sizes (140 nm, 1.3 μm, and 6.6 μm) ranging from the nanoto micron-scale are synthesized to evaluate the suitability of LiDAR-detectable paints in car coatings. The silica cores are fabricated using the Stober method by adjusting the quantity of the reagents and then coated with a black titania shell via titanium tetrachloride sol−gel and NaBH 4 reduction methods. In practical LiDAR applications, the SBT/CS pigments with 100 nm cores exhibit the highest NIR reflectance (27.8 R% at 905 nm) owing to their high specific surface area. Conversely, SBT/CS pigments with 6 μm cores demonstrate excellent spreadability and durability owing to their increased contact area and mechanical strength. All of the SBT/CS-painted objects are successfully recognized using commercial LiDAR sensors, thus confirming the advantages of micronscaled SBT/CS-based paints in autonomous driving environments.

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Synthesis and characterization of porous TiO2 and its application in hydrophilic coatings

Cited by 2 publications

References 35 publications

Development of hydrophilic multilayer structures for energy saving window applications using sol-gel spin coating

Development of hydrophilic multilayer structures for energy saving window applications using sol-gel spin coating

Size-Controlled LiDAR-Detectable Black Pigments: Comparative Study from the Nano- to the Micron-Scale

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