混合气凝胶负载铋纳米粒子的电化学传感器检测Pb<sup>2+</sup>和Cd<sup>2+</sup>

引用本文: 张翠忠, 连欢, 杨薇, 诸葛文凤, 唐小强, 郭洋洋, 彭金云, 李福燕. 混合气凝胶负载铋纳米粒子的电化学传感器检测Pb²⁺和Cd²⁺[J]. 分析化学, 2022, 50(8): 1233-1242. doi: 10.19756/j.issn.0253-3820.210771 shu

Citation: ZHANG Cui-Zhong, LIAN Huan, YANG Wei, ZHUGE Wen-Feng, TANG Xiao-Qiang, GUO Yang-Yang, PENG Jin-Yun, LI Fu-Yan. Electrochmical Sensing Platform for Detection of Lead(Ⅱ) and Cadmium(Ⅱ) Based on Mixed-Aerogels Loaded with Bismuth Nanoparticles[J]. Chinese Journal of Analytical Chemistry, 2022, 50(8): 1233-1242. doi: 10.19756/j.issn.0253-3820.210771 shu

混合气凝胶负载铋纳米粒子的电化学传感器检测Pb²⁺和Cd²⁺

张翠忠 ^1,2, ,
连欢 ^1, ,
杨薇 ^1, ,
诸葛文凤 ^1, ,
唐小强 ^1, ,
郭洋洋 ^1, ,
彭金云 ^{1,
,} ,
李福燕 ^{1,
,}

1.
广西民族师范学院化学与生物工程学院光电化学传感与区域环境分析实验室, 崇左 532200;
2.
广西大学化学化工学院, 南宁 530004

通讯作者: 彭金云,E-mail:pengjinyun@yeah.net; 李福燕,E-mail:liyan01080620@163.com

基金项目:
广西高校中青年教师科研能力提升项目 (Nos.2021KY0771, 2019KY0788, 2021KY0768)、崇左市科技局项目 (No.崇科FA2020019)和广西民族师范学院校级项目(Nos.2018YB032, 2021YB041, 2021YB038)资助。

摘要: 重金属不可降解且具有毒性,重金属污染严重威胁生态安全和人体健康,因此,建立灵敏、准确的重金属离子检测方法具有重要的意义。本研究以聚多巴胺(PDA)为交联剂,将羧基碳纳米管(MWCNT-COOH)和氧化石墨烯(GO)通过氨基和羧基等基团键合,形成3D分层多孔结构的混合气凝胶(MAs),形貌类似"卷心菜",并以MAs为基底原位负载铋纳米粒子(BiNPs),构建了检测铅离子(Pb²⁺)和镉离子(Cd²⁺)的电化学传感器。采用微分脉冲溶出伏安法(DPSV)可同时检测Pb²⁺和Cd²⁺,线性范围分别为5-500 ng/L和0.5-70 μg/L,检出限(S/N=3)分别为0.13和0.49 ng/L。本传感器具有较高的准确性、稳定性和抗干扰性,可用于Pb²⁺和Cd²⁺的同时检测,在实际环境水样质量监测中具有良好的应用潜力。

关键词:

English

Electrochmical Sensing Platform for Detection of Lead(Ⅱ) and Cadmium(Ⅱ) Based on Mixed-Aerogels Loaded with Bismuth Nanoparticles

1.
Photochemical Sensing and Regional Environmental Analysis Laboratory, Chemical and Biological Engineering College, Guangxi Normal University for Nationalities, Chongzuo 532200, China;
2.
School of Chemisty and Chemical Engineering, Guangxi University, Nanning 530004, China

Corresponding author: PENG Jin-Yun, ; LI Fu-Yan,

Received Date: 29 September 2021
Revised Date: 29 May 2022
Fund Project:
Supported by the Universities in Guangxi Young and Middle-Aged Teachers' Basic Ability Improvement Projects (Nos.2021KY0771, 2019KY0788, 2021KY0768), the Project of Chongzuo Science and Technology Bureau (No.FA2020019) and Guangxi Normal University for Nationalities,China (Nos.2018YB032, 2021YB041, 2021YB038).

Abstract: Heavy metals have the characteristics of low concentration, high toxicity and biological undegradability. The heavy metal ion pollution of environmental water systems pose a great threat to human health. In this work, carboxy carbon nanotubes (MWCNT-COOH) and dialyzed graphene oxide (GO) were bonded to form a 3D mixed-aerogels (MAs) of hierarchical porous structure with polydopamine (PDA) as the "cross-linking agent", similar to "cabbage-like". Bismuth nanoparticles (BiNPs) were loaded in situ on MAs as the substrate to construct an electrochemical sensor. Differential pulse stripping voltammetry (DPSV) was used to detect Pb²⁺ and Cd²⁺ simultaneously. The linear ranges were 5-500 ng/L and 0.5-70 μg/L, and the corresponding detection limits (S/N=3) were 0.13 ng/L and 0.49 ng/L for Pb²⁺ and Cd²⁺, respectively. The experimental results showed that the sensor had high accuracy, high stability and anti-interference properties. The sensor was expected to be of great significance for simultaneous detection of heavy metals.

Key words:

Mixed-aerogels
/ Hierarchical porous structure
/ Bismuth nanoparticles
/ Differential pulse stripping voltammetry
/ Lead
/ Cadmium

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

混合气凝胶负载铋纳米粒子的电化学传感器检测Pb²⁺和Cd²⁺

通讯作者: 彭金云,E-mail:pengjinyun@yeah.net; 李福燕,E-mail:liyan01080620@163.com

English

Electrochmical Sensing Platform for Detection of Lead(Ⅱ) and Cadmium(Ⅱ) Based on Mixed-Aerogels Loaded with Bismuth Nanoparticles

Corresponding author: PENG Jin-Yun, ; LI Fu-Yan,

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

混合气凝胶负载铋纳米粒子的电化学传感器检测Pb2+和Cd2+

通讯作者: 彭金云,E-mail:pengjinyun@yeah.net; 李福燕,E-mail:liyan01080620@163.com

English

Electrochmical Sensing Platform for Detection of Lead(Ⅱ) and Cadmium(Ⅱ) Based on Mixed-Aerogels Loaded with Bismuth Nanoparticles

Corresponding author: PENG Jin-Yun, ; LI Fu-Yan,

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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通讯作者: 陈斌, bchen63@163.com

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混合气凝胶负载铋纳米粒子的电化学传感器检测Pb²⁺和Cd²⁺

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