Chemically reduced silver nanoparticles: preparation and applications

被引：2

作者：

Tan, Da-Qing ^{[1
]}

Dong, Meng-Yao ^{[1
]}

Xia, Yi-jie ^{[2
]}

Wang, Xuan-Ye ^{[2
]}

Wei, Hui-Ge ^{[2
]}

机构：

[1] Chongqing Ind Polytech Coll, Sch Mech Engn & Automat, Key Lab Mat Proc & Mold Technol, Chongqing, Peoples R China

[2] Tianjin Univ Sci & Technol, Coll Chem Engn & Mat Sci, Tianjin Key Lab Brine Chem Engn & Resource Ecoutl, Tianjin, Peoples R China

来源：

EMERGING MATERIALS RESEARCH | 2024年 / 13卷 / 01期

关键词：

material chemistry; nanoparticles; sensors; GLUCOSE; NANOPRISMS; CATALYSTS; GROWTH; NANOSPHERES; PALLADIUM; MECHANISM; OXIDATION; ELECTRODE; EFFICACY;

D O I：

10.1680/jemmr.23.00064

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

By virtue of their unique physiochemical properties, silver nanoparticles (AgNPs) have attracted enormous research interest for versatile applications. It is critical to study the effect of the microstructure - for example, the shape and the size of AgNPs - on their performance. Herein, AgNPs with varying shapes and sizes were synthesized by varying the manner that the reducing agent sodium borohydride (NaBH4) was added (i.e. multistep and one-step reduction methods) and then were studied for photocatalysis of dyes and electrocatalytic oxidation of glucose. The results showed that triangular AgNPs, spherical AgNPs or a mixture of triangular- and spherical-shaped AgNPs was obtained from the multistep reduction method, whereas only spherical-shaped AgNPs were yielded from the one-step reduction method. The sizes could be manipulated by changing the concentrations of the reagents or the reaction temperature. The triangular-shaped and smaller-sized AgNPs were more effective for photocatalysis of dyes, and the degradation percentage of methylene blue was enhanced to 95% for the silver (Ag)-titanium dioxide (TiO2) complex from 50% for pure titanium dioxide. Moreover, the spherical-shaped AgNPs with a smaller size could effectively detect glucose at a very low concentration of 5-10mM with an excellent glucose tolerance.

引用

页码：56 / 64

页数：9

共 40 条

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