2012 - Europe Direct Iasi

EUROINVENT 2012
on four different analytical techniques: colorimetry (CIE
L*a*b*), optical microscopy (OM) with visible and
fluorescence light, atomic force microscopy (AFM) and
scanning electron microscopy (SEM) was applied. The
combinations of these techniques allowed an extensive and
complete view of the surface material and its
characteristics/behavior. Going to a nano-scale with the use
of AFM proved to be of major importance to achieve a new
further level of information; at the same time the conclusions
were easily extrapolated to a larger scale.
The new formulations and the non-invasive multi-technique
methodology we propose in this work can be applied in
conservation-restoration practice but further experiments
are required to optimize the parameters of the application
and to validate it on real art objects.
X. 19.
Heterogeneous catalyst based on Romanian montmorillonite for
Title
the catalytic wet hydrogen peroxide oxidation of chlorophenols
from wastewaters
Authors Daniela Arsene, Carmen Teodosiu
Institution „Gheorghe Asachi” Technical University of Iasi
Description
Catalytic wet hydrogen peroxide oxidation (CWPO) is one of the
most promising advanced oxidation processes, for the
degradation of priority organic pollutants. Mixed Al-Cu pillared
clays (AlCu PILCs) displays both good catalytic activity and
high stability. The aims of this research was to study the CWPO
of 4-chlorophenol over an AlCu PILCs prepared from
indigeneous clay and compare it with catalysts prepared from
reference materials. The pillaring process was successful for all
the clays, as indicated by the increase in d 001 basal space (XRD)
and in the surface area (BET nitrogen adsorption/desorption
isotherms). The catalysts were very active allowing complete
elimination of 4-chlorophenol and a significant reduction of
chemical oxygen demand values (COD). The Romanian
montmorillonite from Valea Chioarului can be successfully used
for the preparation of AlCu PILCs, giving catalysts with
activities comparable with those obtained from reference
materials.
X. 20.
Title
Clinical and radiological study regarding the evaluation of
incipient caries treatment using resin infiltration method
Authors Pancu Galina, Stoleriu Simona
Institution University of Medicine and Pharmacy Gr.T.Popa, Iaşi
Innovative Researches
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