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Science of Advanced Materials · 2022 ·Vol. 14 ·期 3 ·576-580 · IF 1.067

A Novel Core–Shell Structure TiO2 Nanolayer Sphere Preparation and Electrocatalytic Degradation Study

Tang Si-Lu,Liu Ya-Lin,Li Xu-Ming,Chen Qian-Wen,Chen Heng-Yu,Zhou Ji-Li,Chen Liang,Gu Zi-Yi,Shao Shi-Xing,Qiao Pei-Zhi,Shen Guo-Dong,Yang Bing-Chuan

The core–shell TiO2 nano-layer spheres were synthesized by hydrothermal method without surfactant, using tetraisopropyl titanate, diethylenetriamine and water as the capping agents. The structure of the products was characterized with X-ray diffraction (XRD), transmission electron microscope (TEM) and scanning electron microscopy (SEM). The possible formation mechanism and electrocatalytic degradation characters of the products were also discussed.

研究领域: 材料科学 · 环境科学

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Surfaces and Interfaces · 2023 · IF 6.2

Atomic layer deposition of TiO2 nanolayer coated Vectran fabrics with enhanced UV-blocking performance and structural colors

Jiahao He,Zhijiang Liu,Wenlu Zhang,Chong He,Wenbin Li

Vectran fabrics are widely employed as the key material for the manufacturing of stratospheric airship. Nonetheless, Vectran faber would decompose due to the UV aging during the prolonged flying process. Herein, atomic layer deposition (ALD) technology was introduced to coat TiO 2 nanolayers on the surface of Vectran fabrics. Titanium isopropoxide liquid was employed as the Ti source precursor throughout the deposition process. Compared with sol-gel vacuum infiltration technic, ALD modified Vectran yarns possessed higher surface uniformity, better UV blocking performance and lower density. Notably, thickness of the TiO 2 nanocoating prepared through the ALD method was adjustable, which can optimize the UV resistance of Vectran yarn without significantly affect its density. Additionally, the nanolayer interface can induce structural coloration on the Vectran strand via diffraction phenomena. These outstanding merits endow ALD technic a promising choice to modify the surface of Vectran fiber used as the skin of stratospheric airships.

CAS / MDL: 1843-05-6 546-68-9

研究领域: 材料科学 · 纺织工程

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A Novel Core–Shell Structure TiO2 Nanolayer Sphere Preparation and Electrocatalytic Degradation Study

Atomic layer deposition of TiO2 nanolayer coated Vectran fabrics with enhanced UV-blocking performance and structural colors