Catalytic reduction of methylene blue and Congo red dyes using green synthesized gold nanoparticles capped by salmalia malabarica gum

被引：0
|
作者：
Ganapuram, Bhagavanth Reddy [1 ]
Alle, Madhusudhan [1 ]
Dadigala, Ramakrishna [1 ]
Dasari, Ayodhya [1 ]
Maragoni, Venkatesham [1 ]
Guttena, Veerabhadram [1 ]
机构：
[1] Osmania Univ, Univ Coll Sci, Dept Chem, Hyderabad 500007, Telangana, India
来源：
INTERNATIONAL NANO LETTERS | 2015年 / 5卷 / 04期
关键词：
Gold nanoparticles; Salmalia malabarica gum; Methylene bluc; Congo red;
D O I：
10.1007/s40089-015-0158-3
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Stable gold nanoparticles (AuNPs) were synthesized using salmalia malabarica gum as both reducing and capping agent. It is a simple and eco-friendly green synthesis. The successful formation of AuNPs was confirmed by UV-visible spectroscopy (UV-Vis), Fourier transform infrared spectroscopy (FTIR), X-ray powder diffraction and transmission electron microscopy (TEM). The synthesized AuNPs were characterized by a peak at 520-535 nm in the UV-Vis spectrum. The X-ray diffraction studies indicated that the resulting AuNPs were highly crystalline with face-centred cubic geometry. TEM studies showed that the average particle size of the synthesized AuNPs was 12 +/- 2 nm. FTIR analysis revealed that -OH groups present in the gum matrix might be responsible for the reduction of Au+3 into AuNPs. The synthesized AuNPs exhibited good catalytic properties in the reduction of methylene blue and Congo red.
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收藏
页码：215 / 222
页数：8
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