Carbon Monolith Surface Chemistry Influence on the Silver Deposit Amount and Crystallite Size

• Authors: M. Vukčević , A. Kalijadis , Z. Jovanović , Z. Laušević , M. Laušević
• Languages of publication: EN

Abstracts

EN

The surface of carbon monolith (CM) was chemically treated in order to obtain antibacterial filters with silver deposit for water treatment. The chemical treatment involved submerging the as-received CM in HNO_{3}, KOH and H_{2}O_{2} solution. The specific surface area was examined by N_{2} adsorption. Silver deposition at the surface of CM samples was performed using cheap and simple procedure of immersing CM samples in aqueous solution of AgNO_{3}. Temperature programmed desorption method has been used in order to investigate the nature and thermal stability of surface oxygen groups before and after silver deposition. The composition and crystalinity of silver deposits have been examined by X-ray diffraction. Chemical treatment does not cause any drastic changes of CM specific surface area, but increases a total amount of surface oxides. Amount of deposited silver is several times higher for all chemically treated samples. The results show that increasing the amount of CO yielding groups on CM surface leads to increased amount of Ag deposit and decreases its crystallite sizes

Keywords

EN

81.05.U-; 81.65.-b; 68.35.Dv; 81.15.-z

Discipline

• 81.65.-b: Surface treatments(for surface preparation and lithography in microelectronics, see 85.40.-e)
• 81.05.U-: Carbon/carbon-based materials(for carbon-based superconductors, see 74.70.Wz)
• 68.35.Dv: Composition, segregation; defects and impurities
• 81.15.-z: Methods of deposition of films and coatings; film growth and epitaxy(for structure of thin films, see 68.55.-a; see also 85.40.Sz Deposition technology in microelectronics; for epitaxial dielectric films, see 77.55.Px)

• Journal: Acta Physica Polonica A
• Year: 2011
• Volume: 120
• Issue: 2
• Pages: 284-288

Dates

published

2011-08

Contributors

author

M. Vukčević

• Faculty of Technology and Metallurgy, University of Belgrade, 11000 Belgrade, Serbia

author

A. Kalijadis

• Laboratory of Physics, Vinca Institute of Nuclear Sciences, P.O. Box 522, 11001 Belgrade, Serbia

author

Z. Jovanović

• Laboratory of Physics, Vinca Institute of Nuclear Sciences, P.O. Box 522, 11001 Belgrade, Serbia

author

Z. Laušević

• Laboratory of Physics, Vinca Institute of Nuclear Sciences, P.O. Box 522, 11001 Belgrade, Serbia

author

M. Laušević

• Faculty of Technology and Metallurgy, University of Belgrade, 11000 Belgrade, Serbia

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Identifiers

DOI

10.12693/APhysPolA.120.284