A Polyaniline-Supported, Chromium-Based Metal-Organic Framework for Electrochemical Sensing of Cadmium(II)

被引：2

作者：

Roy, Ekta ^{[2
]}

Pal, Souvik ^{[1
]}

Kung, Chung-Wei ^{[1
]}

Yu, Sheng-Sheng ^{[1
]}

Nagar, Achala ^{[3
]}

Lin, Chia-Her ^{[4
]}

机构：

[1] Natl Cheng Kung Univ, Dept Chem Engn, 1 Univ Rd, Tainan 70101, Taiwan

[2] Medi Caps Univ, Dept Chem, AB Rd, Indore 45333, Madhya Pradesh, India

[3] Govt Engn Coll Jhalawar, Dept Chem, Jhalawar 326023, Rajasthan, India

[4] Natl Taiwan Normal Univ, Dept Chem, 88 Sec 4,Ting Chow Rd, Taipei 11677, Taiwan

来源：

CHEMISTRYSELECT | 2022年 / 7卷 / 42期

关键词：

cadmium sensing; electrochemical sensing; metal-organic frameworks (MOFs); polyaniline (PANI); pencil graphite electrode (PGE); ANODIC-STRIPPING VOLTAMMETRY; POST-SYNTHETIC MODIFICATION; GLASSY-CARBON ELECTRODE; SENSITIVE DETECTION; FACILE SYNTHESIS; THIN-FILMS; SENSOR; MIL-101; CD(II); NANOPARTICLES;

D O I：

10.1002/slct.202203574

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this work a conducting electrochemical sensing probe, Cr-BDC-NH2@PANI composite material (BDC=1,4-benzenedicarboxylate), was successfully synthesized by polymerization of conducting polyaniline (PANI) around the Cr-BDC-NH2 material. The synthesized composite material was characterized by various analytical techniques. The Cr-BDC-NH2@PANI composite was successfully dropped cast on the surface of an inexpensive pencil graphite electrode (PGE) to detect the cadmium ions at trace level. The selectivity of proposed sensor observed towards cadmium ion is due to chelation mechanism operating between cadmium ions and amine groups. Under optimized condition, the proposed sensor is capable of measuring cadmium ions in aqueous as well as in human blood serum, plasma, and various water samples within the range of 0.50-32.5 mu g L-1 with the limit of detection (LOD) of 0.20 mu g L-1. The Cr-BDC-NH2@PANI composite material modified sensor shows high affinity and no interference with real samples.

引用

页数：10

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