Electrochemical detection of thiocyanate using phosphate-modified zeolite carbon paste electrodes

被引：16
|
作者：
Idris, A. [1 ,2 ]
Saleh, Tawfik A. [1 ]
Sanhoob, M. A. [2 ,3 ]
Muraza, O. [2 ,3 ]
Al-Betar, Abdul-Rahman [1 ,2 ]
机构：
[1] King Fahd Univ Petr & Minerals, Dept Chem, Dhahran 31261, Saudi Arabia
[2] King Fahd Univ Petr & Minerals, Ctr Res Excellence Nanotechnol, Dhahran 31261, Saudi Arabia
[3] King Fahd Univ Petr & Minerals, Dept Chem Engn, Dhahran 31261, Saudi Arabia
来源：
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS | 2017年 / 72卷
关键词：
Phosphate mordenite zeolite; Cyclic voltammetry; Composite electrode; Square wave voltammetry; Thiocyanate; MODIFIED ZSM-5; PHOSPHORUS; METHANOL; STABILIZATION; PERFORMANCE; CONVERSION; PROPYLENE; OXIDATION; CATALYSTS; CRACKING;
D O I：
10.1016/j.jtice.2017.01.015
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Mordenite zeolite with an average size of 17 pm was synthesized hydrothermally from the gel composition of 9.4 Na2O: Al2O3:40 SiO2:1040 H2O in the absence of organic structure directing agent (OSDA) and without seed addition. The crystallinity, elemental composition, and morphology of the mordenite crystals were confirmed by XRD, EDS and FE-SEM, respectively. The impregnation with phosphate of the synthesized mordenite was achieved by suspending it in aqueous solution of 5 wt.% H3PO4. The effect of the phosphorus impregnation was studied using solid-state NMR. The electrochemical behavior of phosphate mordenite zeolite was investigated in carbon paste via cyclic voltammetry. The optimized composite electrode was used for detection of thiocyanate ions. (C) 2017 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：236 / 243
页数：8
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