Preliminary studies of photocatalytic activity of gypsum plasters containing TiO2 co-modified with nitrogen and carbon

被引：14

作者：

Janus, Magdalena ^{[1
,2
]}

Bubacz, Kamila ^{[1
]}

Zatorska, Justyna ^{[1
]}

Kusiak-Nejman, Ewelina ^{[1
]}

Czyzewski, Adam ^{[1
]}

Morawski, Antoni W. ^{[1
]}

机构：

[1] West Pomeranian Univ Technol, Inst Chem & Environm Engn, PL-70322 Szczecin, Poland

[2] West Pomeranian Univ Technol, Dept Sanit Engn, PL-70310 Szczecin, Poland

来源：

POLISH JOURNAL OF CHEMICAL TECHNOLOGY | 2015年 / 17卷 / 02期

关键词：

titanium dioxide; gypsum; TiO2/N; C; self-cleaning; Reactive Red 198; TITANIUM-DIOXIDE; TIO2-SIO2; NANOCOMPOSITES; ORGANIC-COMPOUNDS; AQUEOUS-SOLUTION; METHYLENE-BLUE; AZO DYES; DEGRADATION; PERFORMANCE; DECOMPOSITION; AIR;

D O I：

10.1515/pjct-2015-0036

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The conducted studies were focused on the development of the gypsum material exhibiting self-cleaning properties. To this end, the raw gypsum was mixed with unique TiO2-based photocatalysts, previously modified by nitrogen and/or carbon doping. The photocatalytic activity of the obtained gypsum plasters was evaluated trough the degradation of model organic compound (Reactive Red 198) under UV-vis irradiation. The impact of the photocatalysts presence on the physicochemical properties of the obtained gypsum plasters was evaluated. Furthermore, the role of non-metals presence on the photocatalytic properties of the TiO2 was determined. It was confirmed that the addition of N,C co-modified titanium dioxide into gypsum bestows this material with self-cleaning properties. The highest dye removal rate was displayed by the gypsum plaster containing optimal amount (10 wt%) of co-modified TiO2/N,C photocatalyst, after 20 hours of UV-vis irradiation.

引用

页码：96 / 102

页数：7

共 60 条

[1] Characterization and photocatalytic performance in air of cementitious materials containing TiO2. Case study of formaldehyde removal [J].