| Autor: |
Vijayalakshmi, K., Radha, S., Muthumeenakshi, K., Sreeja, B. S. |
| Předmět: |
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| Zdroj: |
Journal of Inorganic & Organometallic Polymers & Materials; Oct2024, Vol. 34 Issue 10, p4583-4593, 11p |
| Abstrakt: |
Nickel rich effluent water from electroplating industry contaminates ground and surface water. Hence it is vital to detect its concentration in treated effluent discharges. A step towards this is endeavored using hybrid carbon-bismuth nanocomposite sensor with electro analysis. The nanocomposite was developed involving carbon nanotube combined with bismuth oxy chloride for sensing nickel in different water samples. Multiwalled Carbon Nano Tubes (MWCNT) with nanosheet Bismuth Oxychloride (BiOCl) was prepared by hydrothermal method. The characteristic study of the sensor analyzed using phase analysis technique namely Xray diffraction (XRD) and field enhanced scanning electron microscopy (FESEM) divulged crystallite structure and morphology respectively. The Fourier transform infra-red study (FTIR) revealed the different functional groups present in the nanocomposite. The sensor behavior was studied using cyclic voltammetry (CV) in alkaline–ammonia media for different scan rates. The sensitivity of CV was enhanced greatly after addition of Nickel ions. The chronoamperometric analysis and differential pulse study were conducted to study the deposition and stripping of nickel ion. Optimum response was obtained at a deposition potential of -800 mV, deposition time of 60 s at pH = 8.5. This study showed linear range from 20 µM -160 µM with the Limit of detection (LOD), Limit of quantification (LOQ) and the correlation coefficient (R2) values as 0.019 µM, 0.059 µM and 98% respectively. The sensor exhibited satisfactory performance in terms of selectivity, stability and reproducibility. The sensor was instrumental in detecting the nickel spiked tap water sample and yielded better performance with good recovery percentages. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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