Electrochemical detection of 2-nitrophenol using a heterostructure ZnO/RuO2 nanoparticle modified glassy carbon electrode. Issue 1 (24th December 2019)

• Record Type: Journal Article
• Authors: Uddin, Md. Tamez; Alam, Md. Mahmud; Asiri, Abdullah Mohamed; Rahman, Mohammed Muzibur; Toupance, Thierry; Islam, Md. Akhtarul
• Is Part Of: RSC advances. Volume 10:Issue 1(2020)
• Page Start: 122
• Page End: 132
• Publication Date: 2019-12-24
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c9ra08669b
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : A highly selective chemisensor for 2-nitrophenol detection was fabricated using ZnO/RuO2 nanoparticles (NPs) synthesized by impregnation method. Abstract : A highly selective chemisensor for 2-nitrophenol detection was fabricated using ZnO/RuO2 nanoparticles (NPs) synthesized by impregnation method. The as-synthesized NPs were characterized through UV-vis diffuse reflectance spectroscopy, X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FESEM), Energy dispersive X-ray spectroscopy (EDS), FTIR and X-ray diffraction (XRD). A glassy carbon electrode was modified with as-synthesized ZnO/RuO2 nanoparticles and utilized as a chemical sensor for the detection of 2-nitrophenol. The fabricated sensor exhibited excellent sensitivity (18.20 μA μM −1 cm −2 ), good reproducibility, short response time (8.0 s.), the lowest detection limit (52.20 ± 2.60 pM) and long-term stability in aqueous phase without interference effects. Finally, the fabricated sensor was validated as a 2-NP probe in various environmental water samples at room conditions.