Photocatalytic and antimicrobial activities of functionalized silicate sol-gel embedded ZnO-TiO2 nanocomposite materials

被引：32

作者：

Dhanalakshmi, Ramamoorthy ^{[1
]}

Pandikumar, Alagarsamy ^{[1
]}

Sujatha, Kabilan ^{[2
]}

Gunasekaran, Paramaswamy ^{[2
]}

机构：

[1] Madurai Kamaraj Univ, Sch Chem, Ctr Photoelectrochem, Madurai 625021, Tamil Nadu, India

[2] Madurai Kamaraj Univ, Sch Biol Sci, UGC Networking Resource Ctr Biol Sci NRCBS, Madurai 625021, Tamil Nadu, India

来源：

MATERIALS EXPRESS | 2013年 / 3卷 / 04期

关键词：

Silicate Sol-Gel; Sol-Gel Film; ZnO-TiO2; Photocatalyst; 4-Nitrophenol; Antimicrobial Activity; ZINC-OXIDE; HEXAVALENT CHROMIUM; ESCHERICHIA-COLI; P-NITROPHENOL; NANOPARTICLES; DEGRADATION; DISINFECTION; REDUCTION; ZNO/TIO2; TITANIA;

D O I：

10.1166/mex.2013.1133

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this study, zinc oxide-titanium dioxide nanocomposite materials (ZnO-TiO2)(NCM) have been synthesized through a simple chemical route which are dispersed into various amine functionalized silicate sol-gel matrices (FSG) and are characterized by DRS, PL, XRD, TEM, SEM and EDAX techniques. The photocatalytic performance of the obtained Silicate/(ZnO-TiO2)(NCM) towards the decomposition of 4-nitrophenol (4-NP) and their antimicrobial activity for the inhibition of Escherichia coli (gram negative bacteria), Bacillus cereus (gram positive bacteria) and Trichoderma longibrachiatum (fungi) have been evaluated and the results are compared with controlled samples. In particular, the dispersion of (ZnO-TiO2)(NCM) into the silicate matrices has induced more beneficial effect on the photodegradation and antimicrobial activities. The Silicate/(ZnO-TiO2)(NCM) has exhibited maximum photodegradation and antimicrobial inhibition zone when compared to controlled samples.

引用

页码：291 / 300

页数：10

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