Ileana Nicoleta Popescu

Dr. Ileana Nicoleta Popescu

Faculty of Materials Engineering and Mechanics, Valahia University of Targoviste, Targoviste , Romania
orcid

Research Focus & Metrics

Academic Career Length

16Years (2011-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 October 2011 in Solar Energy Materials and Solar Cells
Verified
Journal Article
Closed access
DBDavid Barlev
David Barlev
RVRuxandra Vidu
Ruxandra Vidu
PSPieter Stroeve
Pieter Stroeve

10 November 2020 in Toxics
Verified
Journal Article
Open access
PDF file
RVRuxandra Vidu
Ruxandra Vidu
Ecaterina MateiEcaterina Matei
Ecaterina Matei
Andra Mihaela PredescuAndra Mihaela Predescu
Andra Mihaela Predescu
BABadriyah Alhalaili
Badriyah Alhalaili
MPMircea Cristian Pantilimon
Mircea Cristian Pantilimon
CPCristian Predescu
Cristian Predescu
Removing heavy metals from wastewaters is a challenging process that requires constant attention and monitoring, as heavy metals are major wastewater pollutants that are not biodegradable and thus accumulate in the ecosystem. In addition, the persistent nature, toxicity and accumulation of heavy metal ions in the human body have become the driving force for searching new and more efficient water treatment technologies to reduce the concentration of heavy metal in waters. Because the conventional techniques will not be able to keep up with the growing demand for lower heavy metals levels in drinking water and wastewaters, it is becoming increasingly challenging to implement technologically advanced alternative water treatments. Nanotechnology offers a number of advantages compared to other methods. Nanomaterials are more efficient in terms of cost and volume, and many process mechanisms are better and faster at nanoscale. Although nanomaterials have already proved themselves in water technology, there are specific challenges related to their stability, toxicity and recovery, which led to innovations to counteract them. Taking into account the multidisciplinary research of water treatment for the removal of heavy metals, the present review provides an updated report on the main technologies and materials used for the removal of heavy metals with an emphasis on nanoscale materials and processes involved in the heavy metals removal and detection.

1 August 2016 in Advances in Colloid and Interface Science
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Journal Article
Closed access
MPMaría Pérez-Page
María Pérez-Page
EYErick Yu
Erick Yu
JLJun Li
Jun Li
MRMasoud Rahman
Masoud Rahman
DDDaniel M. Dryden
Daniel M. Dryden
PSPieter Stroeve
Pieter Stroeve

9 June 2011 in Industrial & Engineering Chemistry Research
Verified
Journal Article
Closed access
YHYu Hou
Yu Hou
RVRuxandra Vidu
Ruxandra Vidu
PSPieter Stroeve
Pieter Stroeve

21 March 2018 in Royal Society Open Science
Verified
Journal Article
Open access
APAndra Mihaela Predescu
Andra Mihaela Predescu
Ecaterina MateiEcaterina Matei
Ecaterina Matei
ABAndrei Constantin Berbecaru
Andrei Constantin Berbecaru
CPCristian Pantilimon
Cristian Pantilimon
CDClaudia Drăgan
Claudia Drăgan
VKVictor Kuncser
Victor Kuncser
Synthesis and characterization of iron oxide nanoparticles coated with a large molar weight dextran for environmental applications are reported. The first experiments involved the synthesis of iron oxide nanoparticles which were coated with dextran at different concentrations. The synthesis was performed by a co-precipitation technique, while the coating of iron oxide nanoparticles was carried out in solution. The obtained nanoparticles were characterized by using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction spectrometry, Fourier transform infrared spectroscopy and superconducting quantum interference device magnetometry. The results demonstrated a successful coating of iron oxide nanoparticles with large molar weight dextran, of which agglomeration tendency depended on the amount of dextran in the coating solution. SEM and TEM observations have shown that the iron oxide nanoparticles are of about 7 nm in size.

9 December 2011 in Journal of Materials Chemistry
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Journal Article
Closed access
PDF file
Adam MouleAdam Moule
Adam Moule
LCLilian Chang
Lilian Chang
CTChandru Thambidurai
Chandru Thambidurai
RVRuxandra Vidu
Ruxandra Vidu
PSPieter Stroeve
Pieter Stroeve
For the last decade, researchers have attempted to construct photovoltaic (PV) devices using a mixture of inorganic nanoparticles and conjugated polymers. The goal is to construct layers that use the best properties of each material e.g., flexibility from the polymer and high charge mobility from the nanoparticles or blue absorbance from the polymer complementing red absorbance from the nanoparticles. This critical review discusses the main obstacles to efficient hybrid organic/inorganic PV device design in terms of contributions to the external and internal quantum efficiencies. We discuss in particular the role that ligands on the nanoparticles play for mutual solubility and electronic processes at the nanoscale. After a decade of work to control the separation distance between unlike domains and the connectivity between like domains at the nanoscale, hybrid PV device layers are gaining in efficiency, but the goal of using the best properties of two mixed materials is still elusive.