Synthesis and Characterization of Ag/ZnO Nanoparticles for Bacteria Disinfection in Water

被引：31

作者：

Primo, Julia de O. ^{[1
,2
]}

Horsth, Dienifer F. ^{[1
,2
]}

Correa, Jamille de S. ^{[1
]}

Das, Arkaprava ^{[2
]}

Bittencourt, Carla ^{[2
]}

Umek, Polona ^{[3
]}

Buzanich, Ana Guilherme ^{[4
]}

Radtke, Martin ^{[4
]}

Yusenko, Kirill, V ^{[4
]}

Zanette, Cristina ^{[5
]}

Anaissi, Fauze J. ^{[1
]}

机构：

[1] Univ Estadual Centro Oeste, Dept Quim, BR-85040080 Guarapuava, Brazil

[2] Univ Mons, Res Inst Mat Sci & Engn, Chim Interact Plasma Surface ChIPS, B-7000 Mons, Belgium

[3] Jozef Stefan Inst, Solid State Phys Dept, Ljubljana 1000, Slovenia

[4] BAM Fed Inst Mat Res & Testing, D-12205 Berlin, Germany

[5] Univ Estadual Centro Oeste, Dept Engn Alimentos, BR-85040080 Guarapuava, Brazil

来源：

NANOMATERIALS | 2022年 / 12卷 / 10期

关键词：

zinc oxide; silver nanoparticles; water disinfection; ZINC-OXIDE NANOPARTICLES; ONE-POT SYNTHESIS; ESCHERICHIA-COLI; DRINKING-WATER; ANTIBACTERIAL ACTIVITY; SILVER NANOPARTICLE; ZNO; FACILE; RAMAN; XPS;

D O I：

10.3390/nano12101764

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this study, two green synthesis routes were used for the synthesis of Ag/ZnO nanoparticles, using cassava starch as a simple and low-cost effective fuel and Aloe vera as a reducing and stabilizing agent. The Ag/ZnO nanoparticles were characterized and used for bacterial disinfection of lake water contaminated with Escherichia coli (E. coli). Characterization indicated the formation of a face-centered cubic structure of metallic silver nanoparticles with no insertion of Ag into the ZnO hexagonal wurtzite structure. Physicochemical and bacteriological analyses described in "Standard Methods for the Examination of Water and Wastewater" were used to evaluate the efficiency of the treatment. In comparison to pure ZnO, the synthesized Ag/ZnO nanoparticles showed high efficiencies against Escherichia coli (E. coli) and general coliforms present in the lake water. These pathogens were absent after treatment using Ag/ZnO nanoparticles. The results indicate that Ag/ZnO nanoparticles synthesized via green chemistry are a promising candidate for the treatment of wastewaters contaminated by bacteria, due to their facile preparation, low-cost synthesis, and disinfection efficiency.

引用

页数：18

共 59 条

[1] Cetyltrimethylammonium Bromide (CTAB)-Loaded SiO2-Ag Mesoporous Nanocomposite as an Efficient Antibacterial Agent [J].