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Enhanced Photocatalytic activity and Chemical sensor development based on ternary B2O3∙Zn6Al2O9∙ZnO nanomaterials for environmental safety

Abstract

Synthesis of ternary B2O3∙Zn6Al2O9∙ZnO nanomaterials by simple co-precipitation method and potentially applied as an efficient photocatalyst and chemical sensor has been reported. The synthesized nanomaterial was studied by XRD, SEM, EDS mapping, Photoluminescence (PL), FTIR, UV-Visible Spectroscopy. This nanocomposite exhibits enhanced efficiency in photo-catalysis in Methyl Violet 6b (MV) dye degradation. It has observed the efficiency of 97.24% under visible light and 78.98% under UV light at pH 9. Moreover, it loses only 2.61% efficiency over third time reuse. Even more, in presence of H2O2, it can degrade over 98% dye within just 1 hour. PL and PLE property was also reported with the change of excitation energy and calcination temperature. The PLE shows three equidistant peaks with 20 nm intervals. For potential chemical sensor development, B2O3∙Zn6Al2O9∙ZnO nanomaterial was deposited on a glassy carbon electrode (GCE) to give a sensor with a fast response towards selective 4-aminophenol (4-AP) in phosphate buffer phase. The sensor also exhibits good sensitivity and long-term stability, and enhanced electrochemical responses. The calibration plot is linear over the 0.1 nM to 0.01M 4-AP concentration ranges. The sensitivity and detection limit is calculated from the slope of calibration plot as 0.506329 µAcm-2nM-1 and 0.019 nM (signal-to-noise ratio, at a SNR of 3) respectively. It is also commenced a promising future efficient photocatalyst and sensitive chemical sensor development using ternary B2O3∙Zn6Al2O9∙ZnO nanomaterials for the potential applications of hazardous and carcinogenic toxic commercial dyes and phenolic compounds for the safety of environmental and health care fields.

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Publication details

The article was received on 17 Apr 2017, accepted on 14 Jun 2017 and first published on 14 Jun 2017


Article type: Paper
DOI: 10.1039/C7NJ01281K
Citation: New J. Chem., 2017, Accepted Manuscript
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    Enhanced Photocatalytic activity and Chemical sensor development based on ternary B2O3∙Zn6Al2O9∙ZnO nanomaterials for environmental safety

    M. A. A. Subhan, P. Chandra Saha, M. M. Rahman, M. A. R. Akand, A. M. Asiri and M. Al-Mamun, New J. Chem., 2017, Accepted Manuscript , DOI: 10.1039/C7NJ01281K

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