Production and characterization of reticulated vitreous carbon/nanodiamond/silver nanoparticles composites used for nitrate removal

• Grant number: 14/27164-6
• Support type: Scholarships in Brazil - Post-Doctorate
• Effective date (Start): October 01, 2015
• Effective date (End): September 30, 2019
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Cooperation agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
• Principal Investigator: Neidenêi Gomes Ferreira
• Grantee: Silvia Sizuka Oishi
• Home Institution: Instituto Nacional de Pesquisas Espaciais (INPE). Ministério da Ciência, Tecnologia, Inovações e Comunicações (Brasil). São José dos Campos , SP, Brazil
• Associated research grant: 17/10118-0 - Study and application of electrochemical technology for the analysis and degradation of endocrine interferents: materials, sensors, processes and scientific dissemination, AP.TEM

Abstract

The worldwide problem of good quality water availability due to an increase in consumption and decrease in water resources has increased concern about environment and the search for new materials and technologies for polluted water treatment. The nitrogen compounds arising from agricultural and some industrial sectors are among the contaminants, which in excess represent a health risk. As environmental regulations become stricter, new processes for efficient wastewater treatment at low cost are necessary. In this sense, this project aims the production, characterization and application of boron-doped nanodiamond (BDND) electrodes grown on reticulated vitreous carbon (RVC) with different graphitization index. RVC substrates will be processed by using polyfurfuryl alcohol resin treated in an oven with controlled atmosphere and will be characterized morphologically and structurally. From technological point of view, the combination of two materials such as diamond film and RVC, is particularly useful for integrating their properties in a hybrid material, resulting in a novel composite for electrochemical applications which combines the singular properties from diamond with the large surface area of RVC matrix. In order to enhance the electrocatalytic activity, the surfaces of RVC and RVC/BDND composites will be modified with silver nanoparticles by electrodeposition. The processed electrodes will be characterized by scanning electron microscopy, Raman spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy and cyclic voltammetry. Finally, these electrodes will be tested in synthetic samples for nitrate removal by electroreduction and their efficiency will be compared with a plan electrode of Si/BDND. The electrolysis results will be verified by Ion Chromatography. (AU)

Scientific publications

(6)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

OISHI, SILVIA SIZUKA; COUTO, ANDREA BOLDARINI; BOTELHO, EDSON COCCHIERI; FERREIRA, NEIDENEI GOMES. Silver deposition optimization process on ultrananocrystalline diamond applied to nitrate reduction. ENVIRONMENTAL TECHNOLOGY, v. 42, n. 4 JULY 2019. Web of Science Citations: 2.

DA SILVA, LILIAN MIEKO; DE LIMA ALMEIDA, DAIVA ALVES; OISHI, SILVIA SIZUKA; COUTO, ANDREA BOLDARINI; FERREIRA, NEIDENEI GOMES. From electrode to device characterizations of polyaniline/micro and nanodiamond/carbon fiber as ternary composites applied as supercapacitor. Journal of Solid State Electrochemistry, v. 23, n. 6, p. 1871-1885, JUN 2019. Web of Science Citations: 0.

DA SILVA, LILIAN MIEKO; DE LIMA ALMEIDA, DALVA ALVES; OISHI, SILVIA SIZUKA; COUTO, ANDREA BOLDARINI; FERREIRA, NEIDENEI GOMES. Constituent material influence on the electrochemical performance and supercapacitance of PAni/diamond/CF composite. MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, v. 228, p. 249-260, FEB 2018. Web of Science Citations: 5.

OISHI, SILVIA SIZUKA; SILVA, LILIAN MIEKO; BOTELHO, EDSON COCCHIERI; REZENDE, MIRABEL CERQUEIRA; ALVES CAIRO, CARLOS ALBERTO; FERREIRA, NEIDENEI GOMES. Influence of modified carbon substrate on boron doped ultrananocrystalline diamond deposition. MATERIALS RESEARCH EXPRESS, v. 5, n. 2 FEB 2018. Web of Science Citations: 1.

OISHI, SILVIA SIZUKA; BOTELHO, EDSON COCCHIERI; REZENDE, MIRABEL CERQUEIRA; FERREIRA, NEIDENEI GOMES. Structural and surface functionality changes in reticulated vitreous carbon produced from poly(furfuryl alcohol) with sodium hydroxide additions. Applied Surface Science, v. 394, p. 87-97, FEB 1 2017. Web of Science Citations: 5.

OISHI, SILVIA S.; COUTO, ANDREA B.; BOTELHO, EDSON C.; FERREIRA, NEIDENEI G. Boron Doped Nanocrystalline Diamond/Reticulated Vitreous Carbon Composites Decorated with Silver Nanoparticles. MRS ADVANCES, v. 1, n. 16, p. 1087-1092, 2016. Web of Science Citations: 0.