Surfactant-assisted graphene oxide/methylaniline nanocomposites for lead ionic sensor development for the environmental remediation in real sample matrices
- 48 Downloads
Graphene oxide/methylaniline (GO/MA) nanocomposites (NCs) were synthesized by an in situ inverse microemulsion polymerization method. The characterization of nanocomposites is done by scanning electron microscope (SEM), X-ray diffraction (XRD) and thermogravimetric analysis (TGA) methods. In addition, an efficient chemical sensor probe was fabricated with flat glassy carbon electrode (GCE) by coating with thin layer of synthesized GO/MA NCs. Then the sensor was applied for the selective detection of lead (Pb+2) ion in an aqueous phase. The sensor performance such as sensitivity (20.56 µA mM−1 cm−2) was calculated from the slope of the calibration curve. The linear dynamic range (LDR: 0.1 nM–0.01 M) was calculated on the maximum linearity line from the calibration plot. The detection limit (DL: 50.0 ± 2.5 pM) was also calculated from the slope of the calibration plot by considering of 3 N/S (signal-to-noise ratio of 3). This novel electrochemical approach introduced a reliable and efficient route to detect the heavy metal ions as selective sensor for the safety of medical, biochemical and environmental fields in broad scales.
KeywordsGO/MA nanocomposites Electrochemical method Sensitivity Pb+2 cationic sensor Environmental remediation
The authors wish to thank all who assisted in conducting this work.
- Ahmad I, Arshad MN, Rahman MM, Asiri AM, Sheikh TA, Aqlan FM (2017a) Crystal structure of N-[(E)-(2-hydroxynaphthalen-1-yl) methylidene] benzenesulfonohydrazide (HNMBSH) and its application as Pb2+ ion sensor by its fabrication onto glassy carbon electrode. Inorg Chim Acta 467:297–306CrossRefGoogle Scholar
- Ahmad I, Arshad MN, Rahman MM, Asiri AM, Sheikh TA, Aqlan FM (2017b) Crystal structureof N’-[(E)-(3-hydroxynaphthalen-2-yl) methylidene]-4-benzenesulfonohydrazide (HNMBSH) and its application as Pb+2 ion sensor by its fabrication onto glassy carbon electrode. Inorg Chim Acta 467Google Scholar
- Aqlan FM, Alam MM, Asiri AM, Zayed MEM, Al-Eryani DA, Al-Zahrani FAM, El-Shishtawy RM, Uddin J, Rahman MM (2019) Fabrication of selective and sensitive Pb2+ detection by 2,2′-(-(1,2-phenylenebis (azaneylylidene))bis(methaneylylidene))diphenol by electrochemical approach for environmental remediation. J Mol Liq 281:401–406CrossRefGoogle Scholar
- Flora G, Gupta D, Tiwari A (2012) Toxicity of lead: a review with recent updates Interdiscip. Toxicol 5:47–58Google Scholar
- Rahman MM, Asiri AM (2015b) Fabrication of highly sensitive ethanol sensor based on doped nanostructure materials using tiny chips. RSC Adv 56:3252–63263Google Scholar
- Rahman MM, Balkhoyor HB, Asiri AM (2016) Ultrasensitive and selective hydrazine sensor development based on Sn/ZnO nanoparticles. RSC Adv 62:9342–29352Google Scholar
- RoyChowdhury A, Datta R, Sarkar D (2018) Heavy metal pollution and remediation. In: Torok B, Dransfield T (eds) Green chemistry. Elsevier, pp 359–373Google Scholar
- Second ed Guidelines for drinking water quality, vol 2 Geneva: World Health Organization 1996Google Scholar