Rok 2017

• The influence of ammonia and selcted amines on the characteristics of calcium carbonate precipitated from calcium chloride solutions via carbonation

  Publikacja

  • D. Konopacka-Łyskawa
  • B. Kościelska
  • J. Karczewski
  • A. Gołąbiewska
  • A. Golabiewska

  - MATERIALS CHEMISTRY AND PHYSICS - Rok 2017

  The precipitation of calcium carbonate was carried out by passing a gasous mixture of carbon dioxide and air into a calcium chloride solution. The selected compounds enhancing carbon dioxide absorption were used as additives which promote the formation of carbonate ions in the solution. The additives were ammonia, monoethanolamine, triethylamine and triethanolamine. The resulting calcium carbonate particles varied in polymorphic...

Rok 2016

• Biobójcze wykończenie tkanin

  Publikacja

  • Ł. Rajski
  • E. Kowal
  • A. Sajdak
  • A. Gołąbiewska
  • M. Paszkiewicz
  • A. Zaleska-Medynska
  • A. Golabiewska

  - Przegląd Włókienniczy - Włókno, Odzież, Skóra - Rok 2016

  The problem of nosocomial infections is nothing new. In places, where people, whose immune system is weakened, are gathered and subjected to various kinds of treatments, the risk of infection increases considerably. The use of textiles with biocidal finishing, which contains nanoAg and nanoCu, may give an additional protection against nosocominal infections. This article presents the latest information regarding various methods...

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• Synthesis and Characterization of Monometallic (Ag, Cu) and Bimetallic Ag-Cu Particles for Antibacterial and Antifungal Applications

  Publikacja

  • M. Paszkiewicz
  • A. Gołąbiewska
  • Ł. Rajski
  • E. Kowal
  • A. Sajdak
  • A. Zaleska-Medynska
  • A. Golabiewska

  - Journal of Nanomaterials - Rok 2016

  In this paper, the experimental studies are concerned with the effect of the synthesis parameters on the formation of monometallic Ag and Cu nanoparticles (NPs). We consider the synthesis strategies verification for the bimetallic core-shell and alloy particles preparation. It was successfully obtained by chemical reduction method. The obtained colloidal solution is characterized by the transmission electron microscopy (TEM) with...

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• The Antibacterial and Antifungal Textile Properties Functionalized by Bimetallic Nanoparticles of Ag/Cu with Different Structures

  Publikacja

  • M. Paszkiewicz
  • A. Gołąbiewska
  • Ł. Rajski
  • E. Kowal
  • A. Sajdak
  • A. Zaleska-Medynska
  • A. Golabiewska

  - Journal of Nanomaterials - Rok 2016

  We reported a preparation and characterization of five kinds of impregnation solutions, containing Ag/Cu in the formof bimetallic nanoparticles (alloy and core-shell) as well as ionic species. The cotton-polyester textiles were successfully impregnated during the washing and ironing process by as-prepared solutions to have antibacterial and antifungal properties against to Escherichia coli, Staphylococcus aureus, and Candida albicans....

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• The effect of gold shape and size on the properties and visiblelight-induced photoactivity of Au-TiO2

  Publikacja

  • A. Gołąbiewska
  • A. Malankowska
  • M. Jarek
  • W. Lisowski
  • G. Nowaczyk
  • S. Jurga
  • A. Zaleska-Medynska

  - APPLIED CATALYSIS B-ENVIRONMENTAL - Rok 2016

  tIn the present investigation, TiO2modified with a different geometry and size of gold particles, suchas nanospheres (NSPs), nanostars (NSTs) and nanorods (NRs), were prepared by the immobilizationmethod. The effect of the gold shape, size and TiO2matrix type (TiO2microspheres or rutile TIO-6 TiO2)were systematically investigated. The obtained photocatalysts were thoroughly characterized by UV–visdiffuse-reflectance spectroscopy...

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Rok 2014

• The effect of preparation route on structure and photocatalytic properties of bimetallic nanoparticles (Au/Pd, and Au/Pt) deposited at TiO2 surface

  Publikacja

  • A. Zaleska-Medynska
  • A. Gołąbiewska
  • A. Malankowska
  • M. Pohl
  • J. W. Sobczak
  • A. Zielińska-Jurek
  • A. Bruckner

  - Rok 2014

  Noble metal nanoparticles have often been used to enhance the photocatalytic activity of TiO2 and to extend the absorption wavelength from the ultraviolet to visible region. Bimetallic nanoparticles, composed of two different metal elements, can exhibit peculiar electronic, optical, and catalytic or photocatalytic properties that are absent in the corresponding monometallic nanoparticles. In this work we show the effect kind and...

• Visible light photoactivity of TiO2loaded with monometallic(Au or Pt) and bimetallic (Au/Pt) nanoparticles

  Publikacja

  • A. Gołąbiewska
  • W. Lisowski
  • M. Jarek
  • G. Nowaczyk
  • A. Zielińska-Jurek
  • A. Zaleska-Medynska

  - APPLIED SURFACE SCIENCE - Rok 2014

  TiO2modified with monometallic (Au or Pt) and bimetallic (Au/Pt) nanoparticles have been preparedusing a water-in-oil microemulsion system (water/AOT/cyclohexane) followed by calcination step. Theeffect of metal ratio, reducing agent type (NaBH4or N2H4), TiO2matrix type (P-25, ST-01, TiO-5, TiO2nano-tubes or TiO2obtained by TIP hydrolysis) as well as calcination temperature (from 350 to 650◦C) weresystematically investigated. Obtained...

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Rok 2012

• Characterization of TiO2 Modified with Bimetallic Ag/Au Nanoparticles Obtained in Microemulsion System

  Publikacja

  • A. Gołąbiewska
  • A. Zielińska-Jurek
  • A. Zaleska-Medynska

  - JOURNAL OF ADVANCED OXIDATION TECHNOLOGIES - Rok 2012

  Fotokatalizatory TiO2 modyfikowane nanocząstkami bimetalicznymi Ag/Au przygotowano metodą mikroemulsyjną w układzie woda/surfaktant/cykloheksan. Aktywność fotokatalityczna próbek Ag/Au-TiO2 oszacowano przez wyznaczenie stopnia degradacji fenolu pod wpływem światła VIS. Fenol został użyty jako model zanieczyszczeń, ponieważ jest substancją niebezpieczną dla środowiska. Najwyższą aktywność w zakresie światła widzialnego wykazała...