One-step fabrication of layered double hydroxides/graphene hybrid as solid-phase extraction for stripping voltammetric detection of methyl parathion
One-step fabrication of layered double hydroxides/graphene hybrid as solid-phase extraction for stripping voltammetric detection of methyl parathion
复制标题
一步制备层状双氢氧化物/石墨烯杂化物作为固相萃取用于甲基对硫磷的溶出伏安检测
DOI：
10.1016/j.elecom.2012.04.010
复制
发表时间：
2012-07-01
影响因子：
5.4
通讯作者：
Gong, Jingming
中科院分区：
文献类型：
--
作者：
Liang, Han;Miao, Xingju;Gong, Jingming
我们发展了一种绿色、简便的电化学方法，在阴极基底上合成了新型Ni/Al层状双氢氧化物修饰的石墨烯纳米片杂化材料（LDHs-GNs）。所制备的LDHs-GNs复合物是高效捕获有机磷农药（OPs）的，结合了LDHs（通过选择性插层对OPs的高富集能力）与GNs（大表面积和高电导率）的优点。该方法能有效地促进有机磷分子在其表面的富集，并实现了对有机磷分子模型化合物甲基异硫氰酸根离子（MP）的灵敏溶出伏安检测。MP在水溶液中的检测限为0.6 ng mL（-1）（S/N = 3）。本工作为GN基杂化物的制备提供了一条绿色、简便的路线，同时也为OP的分析提供了一种新的有前途的方法。皇冠版权所有（C）2012由Elsevier B. V.出版。保留所有权利。
We developed a green and facile electrochemical approach to synthesize novel Ni/Al layered double hydroxides decorated graphene nanosheets hybrid (labeled as LDHs-GNs) on a cathodic substrate. The as-prepared LDHs-GNs composite is highly efficient to capture organophosphate pesticides (OPs), combining the advantages of LDHs (high enrichment capability for OPs by a selective intercalation) together with GNs (large surface area and high conductivity). It dramatically facilitates the enrichment of OPs onto their surface and realizes the sensitive stripping voltammetric detection of methyl parathion (MP) as a model of OPs. The detection limit for MP in aqueous solutions was determined to be of 0.6 ng mL(-1) (S/N = 3). This work provides a green and facile route for the preparation of GN-based hybrid, and also offers a new promising protocol for OP analysis. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.