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

共 57 条

[11] A review on the application of inorganic nano-structured materials in the modification of textiles: Focus on anti-microbial properties [J].

Dastjerdi, Roya ;

Montazer, Majid .

COLLOIDS AND SURFACES B-BIOINTERFACES, 2010, 79 (01) :5-18

[12] Enhancement in the photocatalytic activity of Ag loaded N-doped TiO2 nanocomposite under sunlight [J].

Dhabbe, R. S. ;

Kadam, A. N. ;

Suwarnkar, M. B. ;

Kokate, M. R. ;

Garadkar, K. M. .

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2014, 25 (07) :3179-3189

[13] Understanding the High Photocatalytic Activity of (B, Ag)-Codoped TiO2 under Solar-Light Irradiation with XPS, Solid-State NMR, and DFT Calculations [J].

Feng, Ningdong ;

Wang, Qiang ;

Zheng, Anmin ;

Zhang, Zhengfeng ;

Fan, Jie ;

Liu, Shang-Bin ;

Amoureux, Jean-Paul ;

Deng, Feng .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2013, 135 (04) :1607-1616

[14] Titanium dioxide photocatalysis: present situation and future approaches [J].

Fujishima, A ;

Zhang, XT .

COMPTES RENDUS CHIMIE, 2006, 9 (5-6) :750-760

[15] Progresses in treatment of collagen and keratin-based materials with silver nanoparticles [J].

Gaidau, Carmen ;

Petica, Aurora ;

Micutz, Marin ;

Danciu, Mihai ;

Vladkova, Todorka .

CENTRAL EUROPEAN JOURNAL OF CHEMISTRY, 2013, 11 (06) :901-911

[16]

Gaidau C, 2011, J AM LEATHER CHEM AS, V106, P102

[17] Ag-decorated TiO2 photocatalytic membrane with hierarchical architecture: Photocatalytic and anti-bacterial activities [J].

Goei, Ronn ;

Lim, Teik-Thye .

WATER RESEARCH, 2014, 59 :207-218

[18] A review on the synthesis of TiO2 nanoparticles by solution route [J].

Gupta, Shipra Mital ;

Tripathi, Manoj .

CENTRAL EUROPEAN JOURNAL OF CHEMISTRY, 2012, 10 (02) :279-294

[19] Long-range effects of noble metals on the photocatalytic properties of titanium dioxide [J].

Haick, H ;

Paz, Y .

JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (10) :2319-2326

[20]

Hartemann P., 2015, MATER TODAY, V18, P3

← 1 2 3 4 5 6 →