Preparation of Iron-Doped Titania Nanoparticles and Their UV-Blue Light-Shielding Capabilities in Polyurethane.

Preparation of Iron-Doped Titania Nanoparticles and Their UV-Blue Light-Shielding Capabilities in Polyurethane.
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DOI:
10.3390/ma15207370
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发表时间:
2022-10-21
期刊:
Materials (Basel, Switzerland)
影响因子:
--
通讯作者:
Yang M
Yang M
中科院分区:
其他
文献类型:
--
作者:
Baimanova R;Luo F;Yang M

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众所周知,紫外线(UV)和蓝光会对高分子材料造成一系列健康问题和损害。因此,对防紫外线蓝光的要求越来越高。本文合成了一种新型的铁掺杂二氧化钛(Fe-TiO2)纳米颗粒。Fe-TiO2纳米颗粒由锐钛矿和板钛矿组成,粒径较小(约10 nm)。铁元素与二氧化钛晶格结合,形成赤铁矿相(α-Fe2O3)。铁掺杂使Fe-TiO2纳米粒子具有全波段紫外和蓝光吸收,并大大抑制了其光催化活性。制备的Fe-TiO2/聚氨酯(PU)薄膜具有良好的防蓝光性能和高透明度,在防蓝光领域具有很大的应用潜力。
It is well known that ultraviolet (UV) and blue light cause a series of health problems and damages to polymer materials. Therefore, there are increasing demands for UV-blue light-shielding. Herein, a new type of iron-doped titania (Fe-TiO2) nanoparticle was synthesized. Fe-TiO2 nanoparticles with small particle size (ca. 10 nm) are composed of anatase and brookite. The iron element is incorporated into the lattice of titania and forms a hematite phase (α-Fe2O3). The iron doping imparted full-band UV and blue light absorption to Fe-TiO2 nanoparticles, and greatly suppressed the photocatalytic activity. The prepared Fe-TiO2/polyurethane (PU) films exhibited prominent UV-blue light-shielding performance and high transparency, which showed great potential in light-shielding fields.
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