Influence of the different carbon nanotubes on the development of electrochemical sensors for bisphenol A.
作者： Lorena Athie Goulart , Fernando Cruz de Moraes , Lucia Helena Mascaro
DOI: 10.1016/J.MSEC.2015.09.073
关键词: Detection limit 、 Cyclic voltammetry 、 Scanning electron microscope 、 Carbon nanotube 、 Nuclear chemistry 、 Bisphenol 、 Organic chemistry 、 Bisphenol A 、 Carbon 、 Electrochemical gas sensor 、 Materials science
摘要: Different methods of functionalisation and the influence multi-walled carbon nanotube sizes were investigated on bisphenol A electrochemical determination. Samples with diameters 20 to 170 nmwere functionalized in HNO3 5.0 mol L(-1) a concentrated sulphonitric solution. The morphological characterisations before after acid treatment carried out by scanning electron microscopy cyclic voltammetry. size affected oxidation A. nanotubes 20-40 nm diameter improved method sensitivity achieved detection limit for determination at 84.0 nmol L(-1).
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