Chemical Degradation of Methylene Blue Dye Using TiO2/Au Nanoparticles

被引：23

作者：

Jinga, Luiza Izabela ^{[1
,2
]}

Popescu-Pelin, Gianina ^{[2
]}

Socol, Gabriel ^{[2
]}

Mocanu, Sorin ^{[3
]}

Tudose, Madalina ^{[3
]}

Culita, Daniela C. ^{[3
]}

Kuncser, Andrei ^{[4
]}

Ionita, Petre ^{[1
]}

机构：

[1] Univ Bucharest, Fac Chem, 90 Panduri, Bucharest 050663, Romania

[2] Natl Inst Lasers Plasma & Radiat Phys, Magurele 077125, Romania

[3] Inst Phys Chem, 202 Spl Independentei, Bucharest 050663, Romania

[4] Natl Inst Mat Phys, Magurele 077125, Romania

来源：

NANOMATERIALS | 2021年 / 11卷 / 06期

关键词：

environmental remediation; nanoparticle; hydrogen peroxide; gold; titania; PHOTOCATALYTIC DEGRADATION; AU NANOPARTICLES; GOLD NANOPARTICLES; AEROBIC OXIDATION; FACILE SYNTHESIS; CATALYSTS; NANOSTRUCTURES; 4-NITROPHENOL; ANTIBACTERIAL; NANOCRYSTALS;

D O I：

10.3390/nano11061605

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Gold nanoparticles (similar to 10 nm) were deposited on titanium dioxide nanoparticles (similar to 21 nm) and the material obtained was characterized using IR, UV-Vis, N-2 adsorption-desorption isotherm, DLS, EDS (EDX), TEM, XPS, and XRD techniques. It was found that the methylene blue dye is degraded in the presence of this material when using hydrogen peroxide as the oxidant. Tests were performed at 2, 4, 6, and 24 h, with hydrogen peroxide contents varying from 1 to 5 mg/mL. Longer exposure time and a higher content of oxidant led to the degradation of methylene blue dye at up to 90%. The material can be reused several times with no loss of activity.

引用

页数：10

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