Synthesis of broad-spectrum UV-shielding plate-like titanate/calcia-doped ceria composite in different pH solution

Xiangwen Liu; Shu Yin; Tsugio Sato

doi:10.1016/j.matchemphys.2009.04.016

Synthesis of broad-spectrum UV-shielding plate-like titanate/calcia-doped ceria composite in different pH solution

Xiangwen Liu, Shu Yin, Tsugio Sato

IMRAM - Division of Inorganic Material Research

Tohoku University

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

In order to improve the comfort when applied on skin without compromising the ultraviolet (UV)-shielding ability of calcia-doped ceria (Ce_1-xCa_xO_2-x) (donated as: CDC) nanoparticles, the inorganic composite composed of plate-like potassium lithium titanate (K_0.8Li_0.27Ti_1.73O₄) (donated as: PLT) substrate coated with CDC nanoparticles was prepared by a wet chemical method at different solution pH values. Here, PLT possessing UV-shielding ability were used to improve the comfort and covering ability of CDC. The isoelectronic points (IEP) of PLT and CDC were pH 2.5 and ca. 7, respectively, indicating the electrostatic attraction between negatively charged PLT substrate and positively charged CDC nanoparticles can be expected at pH between 2.5 and 7. The PLT/CDC composites with different CDC contents were prepared at pH 6.5 and 12.0 with and without hetero coagulation. The broad-spectrum UV-shielding material with good comfort and low oxidation catalytic activity was successfully synthesized by the combination of PLT and CDC. The influence of pH on the properties of PLT/CDC was evaluated. Crown

Original language	English
Pages (from-to)	421-425
Number of pages	5
Journal	Materials Chemistry and Physics
Volume	116
Issue number	2-3
DOIs	https://doi.org/10.1016/j.matchemphys.2009.04.016
Publication status	Published - 2009 Aug 15

Keywords

Coating
Composite materials

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10.1016/j.matchemphys.2009.04.016

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title = "Synthesis of broad-spectrum UV-shielding plate-like titanate/calcia-doped ceria composite in different pH solution",

abstract = "In order to improve the comfort when applied on skin without compromising the ultraviolet (UV)-shielding ability of calcia-doped ceria (Ce1-xCaxO2-x) (donated as: CDC) nanoparticles, the inorganic composite composed of plate-like potassium lithium titanate (K0.8Li0.27Ti1.73O4) (donated as: PLT) substrate coated with CDC nanoparticles was prepared by a wet chemical method at different solution pH values. Here, PLT possessing UV-shielding ability were used to improve the comfort and covering ability of CDC. The isoelectronic points (IEP) of PLT and CDC were pH 2.5 and ca. 7, respectively, indicating the electrostatic attraction between negatively charged PLT substrate and positively charged CDC nanoparticles can be expected at pH between 2.5 and 7. The PLT/CDC composites with different CDC contents were prepared at pH 6.5 and 12.0 with and without hetero coagulation. The broad-spectrum UV-shielding material with good comfort and low oxidation catalytic activity was successfully synthesized by the combination of PLT and CDC. The influence of pH on the properties of PLT/CDC was evaluated. Crown",

keywords = "Coating, Composite materials",

author = "Xiangwen Liu and Shu Yin and Tsugio Sato",

note = "Funding Information: This research was partially supported by the Ministry of Education, Culture, Sports, Science and Technology, Scientific Research of Priority Areas “Panoscopic Assembling and High Ordered Functions for Rare Earth Materials”, Special Education and Research Expenses on “Post-Silicon Materials and Devices Research Alliance” and the JSPS Asian Core Program “Interdisciplinary Science of Nanomaterials”.",

year = "2009",

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doi = "10.1016/j.matchemphys.2009.04.016",

language = "English",

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AU - Liu, Xiangwen

AU - Yin, Shu

AU - Sato, Tsugio

N1 - Funding Information: This research was partially supported by the Ministry of Education, Culture, Sports, Science and Technology, Scientific Research of Priority Areas “Panoscopic Assembling and High Ordered Functions for Rare Earth Materials”, Special Education and Research Expenses on “Post-Silicon Materials and Devices Research Alliance” and the JSPS Asian Core Program “Interdisciplinary Science of Nanomaterials”.

PY - 2009/8/15

Y1 - 2009/8/15

N2 - In order to improve the comfort when applied on skin without compromising the ultraviolet (UV)-shielding ability of calcia-doped ceria (Ce1-xCaxO2-x) (donated as: CDC) nanoparticles, the inorganic composite composed of plate-like potassium lithium titanate (K0.8Li0.27Ti1.73O4) (donated as: PLT) substrate coated with CDC nanoparticles was prepared by a wet chemical method at different solution pH values. Here, PLT possessing UV-shielding ability were used to improve the comfort and covering ability of CDC. The isoelectronic points (IEP) of PLT and CDC were pH 2.5 and ca. 7, respectively, indicating the electrostatic attraction between negatively charged PLT substrate and positively charged CDC nanoparticles can be expected at pH between 2.5 and 7. The PLT/CDC composites with different CDC contents were prepared at pH 6.5 and 12.0 with and without hetero coagulation. The broad-spectrum UV-shielding material with good comfort and low oxidation catalytic activity was successfully synthesized by the combination of PLT and CDC. The influence of pH on the properties of PLT/CDC was evaluated. Crown

AB - In order to improve the comfort when applied on skin without compromising the ultraviolet (UV)-shielding ability of calcia-doped ceria (Ce1-xCaxO2-x) (donated as: CDC) nanoparticles, the inorganic composite composed of plate-like potassium lithium titanate (K0.8Li0.27Ti1.73O4) (donated as: PLT) substrate coated with CDC nanoparticles was prepared by a wet chemical method at different solution pH values. Here, PLT possessing UV-shielding ability were used to improve the comfort and covering ability of CDC. The isoelectronic points (IEP) of PLT and CDC were pH 2.5 and ca. 7, respectively, indicating the electrostatic attraction between negatively charged PLT substrate and positively charged CDC nanoparticles can be expected at pH between 2.5 and 7. The PLT/CDC composites with different CDC contents were prepared at pH 6.5 and 12.0 with and without hetero coagulation. The broad-spectrum UV-shielding material with good comfort and low oxidation catalytic activity was successfully synthesized by the combination of PLT and CDC. The influence of pH on the properties of PLT/CDC was evaluated. Crown

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KW - Composite materials

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Synthesis of broad-spectrum UV-shielding plate-like titanate/calcia-doped ceria composite in different pH solution

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