Reversible Photochromic Properties of Ti2O3(H2O)2(C2O4) . H2O Material

被引：0

作者：

Hu, Kangkai ^{[1
,3
]}

Lei, E. ^{[1
,2
]}

Zhao, Dan ^{[1
,2
]}

Guo, Zhengang ^{[1
,2
]}

Zhang, Bo ^{[1
,2
]}

机构：

[1] Tianjin Chengjian Univ, Sch Mat Sci & Engn, Jinjing Rd 26th, Tianjin 300384, Peoples R China

[2] Tianjin Chengjian Univ, Tianjin Key Lab Bldg Green Funct Mat, Jinjing Rd 26th, Tianjin 300384, Peoples R China

[3] Sun Yat Sen Univ, Sch Mat, 66 Gongchang Rd, Shenzhen 518107, Guangdong, Peoples R China

来源：

CHEMNANOMAT | 2022年 / 8卷 / 01期

关键词：

Ti2O3(H2O)(2)(C2O4) . H2O; photochromic; hydrothermal method; achromatic; mechanism; FILMS; TIO2;

D O I：

10.1002/cnma.202100407

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Potassium titanyl oxalate is used as the titanium source and HCl as growth promoter. Ti2O3(H2O)(2)(C2O4) . H2O, with hexagonal prism and spherical polyhedral morphology, has been synthesized by one-step hydrothermal method at 120 degrees C for 6 similar to 12 h, and the particle size range is 8-12 mu m. Ti2O3(H2O)(2)(C2O4) . H2O prepared in this research has excellent reversible photochromic properties. It is a kind of P-type photochromic compound, which is achromatic or colorless. The equilibrium time of discoloration or fading is 30 min. The photochromic mechanism research shows that the photochromic properties of Ti2O3(H2O)(2)(C2O4) . H2O are caused by the continuous reaction of Ti4+, Ti3+ with e(cb)(-), V-O(++) in unsaturated cationic compounds.

引用

页数：6

共 25 条

[11] Synergistic effect of surface and bulk single-electron-trapped oxygen vacancy of TiO2 in the photocatalytic reduction of CO2 [J].