Mild fabrication of silica-silver nanocomposites as active platforms for environmental remediation

被引：15
作者：
Mignani, A. [1 ]
Fazzini, S. [2 ,3 ]
Ballarin, B. [2 ,3 ]
Boanini, E. [4 ]
Cassani, M. C. [2 ,3 ]
Maccato, C. [5 ,6 ]
Barreca, D. [7 ,8 ]
Nanni, D. [2 ,3 ]
机构：
[1] Univ Bologna, Ctr Ind Res Adv Applicat Mech Engn & Mat Technol, I-40136 Bologna, Italy
[2] Univ Bologna, Dept Ind Chem Toso Montanari, I-40136 Bologna, Italy
[3] INSTM, I-40136 Bologna, Italy
[4] Univ Bologna, Dept Chem Giacomo Ciamician, I-40126 Bologna, Italy
[5] Univ Padua, Dept Chem Sci, I-35131 Padua, Italy
[6] INSTM, I-35131 Padua, Italy
[7] Univ Padua, CNR IENI, I-35131 Padua, Italy
[8] Univ Padua, INSTM, Dept Chem Sci, I-35131 Padua, Italy
来源：
RSC ADVANCES | 2015年 / 5卷 / 13期
关键词：
CATALYTIC DEGRADATION; GOLD NANOPARTICLES; METHYLENE-BLUE; AZO DYES; REDUCTION;
D O I：
10.1039/c4ra14069a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Herein we report a new, simple, low cost and one step way to obtain silica-supported silver nanoparticles (AgNPs) on commercial polyethyleneimine-functionalized silica beads (SiO2-PEI) under mild experimental conditions. The novel AgNPs/(SiO2-PEI) material has been thoroughly analyzed using FE-SEM, BET, XRD, XPS and XE-AES analysis. The reduction of Methylene Blue (MB) to Leuco Methylene Blue (LMB) in the presence of NaBH4 was chosen for testing the catalytic properties of AgNPs/(SiO2-PEI) towards dyes decoloration. Moreover, the prepared supported nanocatalyst was also found to exhibit excellent catalytic activity towards decoloration of some azo dyes such as E110 and E122.
引用
收藏
页码：9600 / 9606
页数：7
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