Enhanced photocatalysts based on Ag-TiO2 and Ag-N-TiO2 nanoparticles for multifunctional leather surface coating

被引：41

作者：

Gaidau, Carmen ^{[1
,2
]}

Petica, Aurora ^{[1
,2
]}

Ignat, Madalina ^{[1
,2
]}

Iordache, Ovidiu ^{[1
,2
]}

Ditu, Lia-Mara ^{[3
]}

Ionescu, Marcel ^{[4
]}

机构：

[1] R&D Natl Inst Text, Leather Res Dept, 93 Ion Minulescu St, Bucharest 031215, Romania

[2] Leather Leather & Footwear Res Inst Div, 93 Ion Minulescu St, Bucharest 031215, Romania

[3] Univ Bucharest, Res Inst, Fac Biol, Bucharest, Romania

[4] SC Europlast Ltd, 98E,Timisoara Avn 6, Bucharest 061327, Romania

来源：

OPEN CHEMISTRY | 2016年 / 14卷 / 01期

关键词：

nanocomposites; silver deposited on titanium dioxide; self-cleaning; antimicrobial; multifunctional properties; EFFICIENT PHOTODEGRADATION; SILVER NANOPARTICLES; DOPED TIO2; THIN-FILMS; LIGHT; AG; DISINFECTION; MECHANISM; TITANIA;

D O I：

10.1515/chem-2016-0040

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The Ag deposition on TiO2 nanoparticles (Ag-TiO2 NPs) and N-TiO2 nanoparticles (Ag-N-TiO2 NPs) has been made by electrochemical methodology in view of improved antibacterial properties and enhanced photocatalytic activity under visible light irradiation. The particle size in powder and in dispersion showed similar values and good stability in aqueous medium which made them suitable for use in leather surface covering for new multifunctional properties development. The diffuse reflectance spectra of Ag-TiO2 NPs, Ag-N-TiO2 NPs and TiO2 NPs have been investigated and correlated with their photocatalytic performances under UV and visible light against different silver concentrations. The leather surfaces treated with Ag-N-TiO2 NPs showed advanced self-cleaning properties under visible light exposure through the hydrophilic mechanism of organic soil decomposition. Moreover the bacterial sensitivity and proven fungitoxic properties of Ag-N-TiO2 NPs leads to the possibility of designing new multifunctional additives to extend the advanced applications for more durable and useable materials.

引用

页码：383 / 392

页数：10

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