Template-assisted synthesis of 3D ordered mesoporous graphitic carbon nitride decorated with gold nanoparticles for dopamine sensing

被引：0

作者：

Wang, Yi ^{[1
]}

Sang, Xiaoguang ^{[1
]}

Bi, Jingce ^{[1
]}

Fu, Hongjun ^{[1
]}

Liu, Ningning ^{[2
]}

Zhang, Xia ^{[1
]}

Wang, Zhuopeng ^{[1
]}

Han, Yide ^{[1
]}

机构：

[1] Northeastern Univ, Coll Sci, Dept Chem, Shenyang 110819, Peoples R China

[2] Liaoning Petrochem Univ, Sch Petrochem Engn, Fushun 113001, Liaoning, Peoples R China

来源：

NEW JOURNAL OF CHEMISTRY | 2024年 / 48卷 / 41期

基金：

中国国家自然科学基金;

关键词：

ELECTROCHEMICAL DETERMINATION; LIGHT; NANOCOMPOSITE; COMPOSITES; EVOLUTION;

D O I：

10.1039/d4nj03083d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Three-dimensional mesoporous graphitic carbon nitride (Au/3Dom CN) decorated with a gold nanoparticle composite was successfully prepared via a template-assisted method using Au-SiO2 nanospheres as sacrificial agents. Combined characterization through X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS) verified the successful fabrication of the Au/3Dom CN composite. Noteworthily, Au/3Dom CN displayed good sensing performance for the electrochemical detection of dopamine (DA) with a high selectivity of 15.23 mu A mM-1 and a relatively low detection limit of 0.02 mu M (S/N = 3). Besides, the Au/3Dom CN composite exhibited an excellent anti-interference performance. These results reveal that the combined advantages of Au NPs and mesoporous g-C3N4 were conducive to the composite's sensing performance. Simultaneously, a mechanism was proposed to illustrate the good selectivity of the Au/3Dom CN composite for DA. This work presents a new avenue for dopamine detection using a mesoporous g-C3N4-based composite. Three-dimensional mesoporous graphitic carbon nitride (Au/3Dom CN) decorated with a gold nanoparticle composite was successfully prepared via a template-assisted method using Au-SiO2 nanospheres as sacrificial agents.

引用

页码：17928 / 17934

页数：7