title: Environmentally friendly synthesis of CeO2nanoparticles for the catalytic oxidation of benzyl alcohol to benzaldehyde and selective detection of nitrite.
abstract: Cerium oxide nanoparticles (CeO2NPs) are favorable in nanotechnology based on some remarkable properties. In this study, the crystalline CeO2NPs are successfully prepared by an efficient microwave combustion (MCM) and conventional route sol-gel (CRSGM) methods. The structural morphology of the as-prepared CeO2NPs was investigated by various spectroscopic and analytical techniques. Moreover, the XRD pattern confirmed the formation of CeO2NPs as a face centered cubic structure. The magnetometer studies indicated the low saturation magnetization (23.96 emu/g) of CeO2NPs for weak paramagnetic and high saturation magnetization (32.13 emu/g) of CeO2NPs for super paramagnetic. After that, the oxidation effect of benzyl alcohol was investigated which reveals good conversion and selectivity. Besides, the CeO2NPs modified glassy carbon electrode (GCE) used for the detection of nitrite with linear concentration range (0.02-1200 μM), low limit of detection (0.21 μM) and higher sensitivity (1.7238 μAμM-1cm-2). However, the CeO2NPs modified electrode has the fast response, high sensitivity and good selectivity. In addition, the fabricated electrode is applied for the determination of nitrite in various water samples. Eventually, the CeO2NPs can be regarded as an effective way to enhance the catalytic activity towards the benzyl alcohol and nitrite.
authors.affiliation: Department of Chemistry, Anna University, Chennai 600025, India.|National Centre for Catalysis Research, Indian Institute of Technology, Chennai, India.
authors.forename: P
authors.initials: P
authors.lastname: Tamizhdurai
authors.affiliation: Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan (ROC).
authors.forename: Subramanian
authors.initials: S
authors.lastname: Sakthinathan
authors.affiliation: Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan (ROC).
authors.forename: Shen-Ming
authors.initials: SM
authors.lastname: Chen
authors.affiliation: Department of Chemistry, Anna University, Chennai 600025, India.
authors.forename: K
authors.initials: K
authors.lastname: Shanthi
authors.affiliation: National Centre for Catalysis Research, Indian Institute of Technology, Chennai, India.
authors.forename: S
authors.initials: S
authors.lastname: Sivasanker
authors.affiliation: Department of Chemistry, School of Advanced Sciences, VIT University, Vellore, India.
authors.forename: P
authors.initials: P
authors.lastname: Sangeetha