BrainMap

Crina Anastasescu

PhD

Senior Researcher II (CS2) - INSTITUTUL DE CHIMIE FIZICA - ILIE MURGULESCU

Researcher

Web of Science ResearcherID: not public

Curriculum Vitae (26/09/2021)

Expertise & keywords

New generation of photocatalytic self-cleaning systems for functionalization of technical textiles and architectural coatings Call name: Joint Applied Research Projects - PCCA 2013 - call
PN-II-PT-PCCA-2013-4-0864 2014 - 2017

Role in this project:

Coordinating institution: Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti

Project partners: Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti (RO); INSTITUTUL DE CHIMIE FIZICA - ILIE MURGULESCU (RO); INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO); INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU FIZICA LASERILOR, PLASMEI SI RADIATIEI - INFLPR RA (RO); CHIMCOLOR S.R.L. (RO)

Affiliation: INSTITUTUL DE CHIMIE FIZICA - ILIE MURGULESCU (RO)

Project website: http://www.cleanphotocoat.roit.ro

Abstract:

Pollution and its side effects on health, structural damage of materials, costs for maintenance, cleaning and replacement of damaged materials is one of the most important causes of severe human diseases and of great economic losses all over the world. The project is focused on the development of new photocatalytic coating materials for technical textiles and architectural finishing systems that can be used to decompose pollutants in the air and on the coated surfaces in order to maintain a clean and healthy environment and avoid economic loses. The objective of the project is to obtain stable, adherent, efficient and durable daylight photocatalytic self cleaning coatings for different types of substrates, such as flexible technical textiles and rigid construction structures. To accomplish the objective, issues that require skills in various fields are to be addressed, in view of: scientific research for designing new photocatalysts, innovation activity for the improvement of their efficiency by extending absorption in the visible range of the spectrum, and technological development in order to obtain photocatalytic coatings dedicated to a particular type of substrate. All these issues will be solved due to a multidisciplinary partnership formed of high rank specialists in materials physics, laser physics, physical-chemistry, polymer chemistry, dyestuffs chemistry, and chemistry of textile materials, constantly having in mind obtaining safety products and technologies and achieving economic advantages from the production stage up to the application by the end-users.The method used for the synthesis of semiconductor materials is a key factor that determines their efficiency, the main reason for developing comparative studies regarding the most important oxide type photocatalysts used in practice (TiO2 and ZnO) that could be obtained and doped by wet methods (hydrothermal,sol-gel) or by laser pyrolysis route. Investigations developed in the project comprise also sensitizing the photocatalysts at the surface or by obtaining composites in order to use more efficient visible light in the photocatalytic decomposition of pollutants. Thus, we aim to develop new and optimized photocatalytically materials exhibiting activity upon visible light with surface characteristics of improved performance and of the high chemical and physical stability, crucial for broader scale utilization of photocatalytic systems in commercial application. However, another important challenge will be to obtain film building materials containing photocatalysts specially designed for coating technical textiles or for architectural coatings. Technologies regarding photocatalytic coatings developed in the project present several barriers that can be lifted by carrying out this project. The photocatalytic coatings that will be obtained will be compatible with the substrates, protect them to self-degradation and maintain their initial physical-mechanical characteristics, presenting high photocatalytic efficiency in visible light and durability. The newly developed photocatalytic coatings during the project will decompose air pollutants and other contaminants in outdoor and indoor applications using sunlight or artificial light, especially after expanding widespread use of LEDs for interior or exterior lighting of buildings, tunnels, advertising materials, thus making possible an enhancement of the photocatalytic effect and thus providing significant benefits for the environment and human health. Photocatalytic materials obtained in project together with the development of technically applicable photocatalytic coating systems adaptable to different types of substrates will represent a step change in this field particularly regarding the economic viability of a range of potential processes.

New BImetallic nanoparticles with applications in water CLEANing of chlorinated compounds and BIOSensors Call name: Joint Applied Research Projects - PCCA-2011 call, Type 1
PN-II-PT-PCCA-2011-3.1-0054 2012 - 2016

Role in this project:

Coordinating institution: INSTITUTUL DE CHIMIE FIZICA - ILIE MURGULESCU

Project partners: INSTITUTUL DE CHIMIE FIZICA - ILIE MURGULESCU (RO); INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO); INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU STIINTE BIOLOGICE (RO)

Affiliation: INSTITUTUL DE CHIMIE FIZICA - ILIE MURGULESCU (RO)

Project website: http://www.icf.ro/pr_2011/Project_Bicleanbios.ppt

Abstract:

The project proposes the use eco-friendly bimetallic nanoparticles with controlled composition, morphology, structure and chemical state in catalytic and photocatalytic abatement of toxic chlorinated compounds in water via dehydrochlorination reaction. The fine tuning of nanoparticle structure prepared by polyol method is expected to bring crucial improvements by increasing the catalytic activity and resistance against poisoning compared to existing materials. A strategy for improving the catalytic performances is proposed by using ordered mesostructured Al2O3 as supporting material which will be synthesized by combined microemulsion-hydrothermal techniques. In addition, the photocatalytic hydrodechlorination reaction over bimetallic nanoparticles assembled in a controlled manner with TiO2 will be investigated for the first time. The materials will be characterized by a bunch of physico-chemical techniques (XRD, XPS, fractal analysis, gas titration TPO, TPR, Cyclic Voltammetry). Also they will be tested for cytotoxicity and genotoxicity.

Another important application envisaged is to develop new highly sensitive and stable biosensors based on bimetallic nanoparticles. The immobilized biorecognition element(s) on a modified working electrode with bimetallic NPs will be evaluated to identify the most promising systems for biosensor construction.

The targeted technical goal is to develop a laboratory technology for catalytic and photocatalytic degradation of chlorinated compounds in polluted waters. Sensitive and stable biosensors devoted to TCE assessment and based on bimetallic nanoparticles use are also planned to be developed at prototype level.

In order to achieve these ambitious objectives, in the three years proposed, a well-balanced and multidisciplinary consortium of three partners has been created. All the participant members have a well-established reputation in catalysis, material science, bio-chemistry and physico-chemical characterization techniqu

FILE DESCRIPTION	DOCUMENT
List of research grants as project coordinator or partner team leader
Significant R&D projects for enterprises, as project manager
R&D activities in enterprises
Peer-review activity for international programs/projects