Heteroatom-enriched and renewable banana-stem-derived porous carbon for the electrochemical determination of nitrite in various water samples

被引：100

作者：

Madhu, Rajesh ^{[1
]}

Veeramani, Vediyappan ^{[1
]}

Chen, Shen-Ming ^{[1
]}

机构：

[1] Natl Taipei Univ Technol, Dept Chem Engn & Biotechnol, Electroanal & Bioelectrochem Lab, Taipei 106, Taiwan

来源：

SCIENTIFIC REPORTS | 2014年 / 4卷

关键词：

REDUCED GRAPHENE OXIDE; ACTIVATED CARBON; IMPEDANCE SPECTROSCOPY; NANOTUBES NANOCOMPOSITE; SENSITIVE DETERMINATION; GOLD NANOPARTICLES; ELECTRODE; ION; ELECTROCATALYSIS; SUPERCAPACITORS;

D O I：

10.1038/srep04679

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

For the first time, high-surface-area (approximately 1465 m(2) g(-1)), highly porous and heteroatom-enriched activated carbon (HAC) was prepared from banana stems (Musa paradisiaca, Family: Musaceae) at different carbonization temperatures of 700, 800 and 900 degrees C (HAC) using a simple and eco-friendly method. The amounts of carbon, hydrogen, nitrogen and sulfur in the HAC are 61.12, 2.567, 0.4315, and 0.349%, respectively. Using X-ray diffraction (XRD), CHNS elemental analysis, X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy, the prepared activated carbon appears amorphous and disordered in nature. Here, we used HAC for an electrochemical application of nitrite (NO2-) sensor to control the environmental pollution. In addition, HAC exhibits noteworthy performance for the highly sensitive determination of nitrite. The limit of detection (LODs) of the nitrite sensor at HAC-modified GCE is 0.07 mu M. In addition, the proposed method was applied to determine nitrite in various water samples with acceptable results.

引用

页数：8

共 55 条

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