SYNTHESIS OF NANO-BENTONITE MODIFIED GRAPHENE OXIDE ELECTRODE FOR FORMALDEHYDE ANALYSIS BY CYCLIC VOLTAMMETRY
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In this research, each graphene oxide and nano-bentonite was synthesized using the Improved Hummers method and the Sonochemical method for formaldehyde detection by cyclic voltammetry. Formaldehyde detection by cyclic voltammetry has several factors to accurately detect formaldehyde, such as electrode composition, the pH of the solution, the deposition time, and the scan rate. In this study, formaldehyde detection using nano-bentonite modified graphene oxide electrode has the optimum electrode composition in the ratio of graphene oxide: paraffin: nano-bentonite 3:2:5, pH of the optimum solution for detection of formaldehyde 4, 10-second deposition time and scan rate 100 mV/sec. Nano-bentonite modified graphene oxide electrode has a detection limit of up to 0.16856 ppm (0.005613 mM) with a recovery of 99.414%. This sensor was successfully applied for formaldehyde measurement in the actual sample and showed good selectivity, sensitivity, reproducibility, and precision.
Cui, X., Fang, G., Jiang, L. and Wang, S., 2007. Kinetic spectrophotometric method for rapid determination of trace formaldehyde in foods. Analytica Chimica Acta, 590(2), pp.253–259.
Golden, R. and Valentini, M., 2014. Formaldehyde and methylene glycol equivalence: Critical assessment of chemical and toxicological aspects. Regulatory Toxicology and Pharmacology, 69(2), pp.178–186.
Grim, R.E. and Guven, N., 1978. Bentonites: Geology, Mineralogy, Properties and Uses, Elsevier Scientific Publishing Company, Amsterdam.
McNary, J.E. and Jackson, E.M., 2007. Inhalation exposure to formaldehyde and toluene in the same occupational and consumer settng. Inhalation Toxicology, 19(6–7), pp.573–576.
Prado, Ó.J., Veiga, M.C. and Kennes, C., 2008. Removal of formaldehyde, methanol, dimethylether and carbon monoxide from waste gases of synthetic resin-producing industries. Chemosphere, 70(8), pp.1357–1365.
Qiao, J., Guo, Y., Song, J., Zhang, Y., Sun, T., Shuang, S. and Dong, C., 2013. Synthesis of a Palladium-Graphene Material and Its Application for Formaldehyde Determination. Analytical Letters, 46(9), pp.1454–1465.
Republik Indonesia, M.K., 1999. Peraturan Menteri Kesehatan Republik Indonesia Nomor 1168/MENKES/PER/X/1999, Jakarta.
Srinivasan, R., 2011. Advances in application of natural clay and its composites in removal of biological, organic, and inorganic contaminants from drinking water. Advances in Materials Science and Engineering, 2011.
Zarei, E., Jamali, M.R. and Ahmadi, F., 2018. Highly sensitive electrocatalytic determination of formaldehyde using a Ni/Ionic liquid modified carbon nanotube paste electrode. Bulletin of Chemical Reaction Engineering and Catalysis, 13(3), pp.529–542.
Zhang, L., Steinmaus, C., Eastmond, D.A., Xin, X.K. and Smith, M.T., 2009. Formaldehyde exposure and leukemia: A new meta-analysis and potential mechanisms. Mutation Research - Reviews in Mutation Research, 681(2–3), pp.150–168.
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