Preparation of Polydiallyl Dimethyl Ammonium Chloride Modified Reduced Graphene Oxide/Zinc Oxide Composite Materials and Its Application in Detection of Uric Acid
10.11895/j.issn.0253-3820.171059
- VernacularTitle:聚二烯丙基二甲基氯化铵改性石墨烯/氧化锌复合材料的制备及在尿酸检测中的应用
- Author:
Mei Yong FAN
1
;
Mei Ji ZHANG
;
Chao MI
;
Ling Yu CAI
;
Ping Li ZHANG
;
Bin Hai ZHU
Author Information
1. 天津工业大学
- Keywords:
Graphene;
Zinc oxide;
Composite material;
Cyclic voltammetry;
Linear sweep voltammetry;
Uric acid
- From:
Chinese Journal of Analytical Chemistry
2018;46(1):33-38
- CountryChina
- Language:Chinese
-
Abstract:
By using Zinc nitrate as precursor and hydraZine hydrate as reducing agent, polydiallyl dimethyl ammonium chloride modified reduced graphene oxide/Zinc oxide composite materials ( PDDA-rGO/ZnO) were prepared by simultaneous reduction of graphene oxide ( GO) and Zinc nitrate.The composite materials were characteriZed by Fourier transform infrared ( FTIR ) spectroscopy, X-ray diffractometer ( XRD ) and transmission electron microscopy ( TEM) , and their electrochemical catalytic activity for uric acid was studied by cyclic voltammetry ( CV ) and linear sweep voltammetry ( LSV ) measurements.The result showed that PDDA-rGO/ZnO modified glassy carbon electrode prepared here was sensitive, reproducible and stable, and had significant electrocatalytic activity for UA.When using linear sweep voltammetry for detection of UA, the responses of modified electrode were linear with UA concentration in the ranges of 0.02-0.1 mmol/L and 0.1-1.0 mmol/L respectively, with detection limit of 15.9 nmol/L (S/N=3).
