Lanthanum-impregnated zeolite modified carbon paste electrode for determination of Cadmium (II)

被引：15
|
作者：
Ismail, A. [1 ,3 ]
Kawde, A. [1 ]
Muraza, O. [2 ,3 ]
Sanhoob, M. A. [2 ,3 ]
Al-Setar, A. R. [1 ,3 ]
机构：
[1] King Fahd Univ Petr & Minerals, Dept Chem, Dhahran 31261, Saudi Arabia
[2] King Fahd Univ Petr & Minerals, Dept Chem Engn, Dhahran 31261, Saudi Arabia
[3] King Fahd Univ Petr & Minerals, Ctr Res Excellence Nanotechnol, Dhahran 31261, Saudi Arabia
来源：
MICROPOROUS AND MESOPOROUS MATERIALS | 2016年 / 225卷
关键词：
Mordenite; Electrochemical characterization; Square wave-anodic stripping voltammetry; Cadmium ion; ANODIC-STRIPPING VOLTAMMETRY; SELECTIVE POTENTIOMETRIC SENSOR; POLY(VINYL CHLORIDE) MATRIX; LARGE MORDENITE CRYSTALS; BISMUTH-FILM ELECTRODES; HEAVY-METALS; PVC MATRIX; ELECTROCHEMICAL-BEHAVIOR; NANOMOLAR CONCENTRATIONS; GRAPHITE ELECTRODE;
D O I：
10.1016/j.micromeso.2015.12.023
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
We report the hydrothermal synthesis of mordenite zeolite in the absence of organic structuring directing agent (OSDA). The mordenite (MOR) zeolite with molar composition 6Na(2)O:Al2O3:30-SiO2:780H(2)O was characterized by XRD, SEM, EDX, and NMR. It was further impregnated with lanthanum and was used in the construction of zeolite modified carbon paste electrode by mixing with different amounts of graphite and paraffin oil to form a paste. The paste composite with the ratio 65:5:30 (graphite:zeolite:paraffin) displayed the best electrochemical behavior in the cyclic voltammetry of K4Fe(CN)6 and was hence used for the detection of Cd (II) ions. (C) 2015 Elsevier Inc. All rights reserved.
引用
收藏
页码：164 / 173
页数：10
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