Only light, aerial oxygen, and a catalyst are needed to remove pollutants from water. RUB researchers led by Prof. Radim Beránek collaborate with colleagues from seven different countries in order to develop a photocatalyst that is efficient enough to be profitable.
Catalysts for painting: Together with their international colleagues, RUB researchers develop catalysts that detoxify water with the aid of sunlight and aerial oxygen. They aim to fabricate the catalysts as a liquid paint.
Image: Radim Beránek
For that purpose, they combine sunlight-absorbing semiconductors and nanostructured materials which they optimize for electron transfer processes. The aim is to implement the newly developed photocatalysts into a liquid paint with which photoreactors can easily be coated. The EU supports the project within its 7th Framework Programme (FP7) with 3.7 million Euro funding for three years.
Current problems of photocatalysis
People from many countries of the world extensively use pesticides which contaminate drinking and irrigation water with toxic organic compounds. In rural areas of Vietnam, herbicides and dioxins, resistant to degradation, made their way into the water cycle during the Vietnam war.
Cancer and abnormalities in newborns can be the consequence. “Photocatalysis is potentially one of the cheapest and most efficient methods for purifying water from pollutants,” Radim Beránek says. Sunlight and oxygen establish oxidizing conditions under which toxins are easily degraded into non-harmful substances like water and carbon dioxide. Up to now the process, however, faces two problems: degradation rates are too low and assembly of the needed photoreactors is too expensive.
The aim: cheeper and more efficient catalysts
Within the project “4G-PHOTOCAT”, the researchers aim to develop cost-efficient photocatalysts with a considerably improved degradation rate. Therefore they fabricate innovative composite materials consisting of semiconductors and nanostructured metal oxides. In order to achieve the optimal architecture for the product, they employ advanced chemical deposition techniques with a high degree of control over composition and morphology. “Our ultimate goal is to implement the newly developed photocatalysts into a liquid paint,” Radim Beránek says. “Photoreactors painted with that liquid can be used, for example, for water decontamination in remote rural areas of Vietnam.”
“4G-PHOTOCAT “allies the expertise of seven academic and three industrial partners from five European countries and two Southeast Asian countries. At the RUB, Prof. Dr. Radim Beránek collaborates with Prof. Dr. Roland A. Fischer (Inorganic Chemistry II), Prof. Dr. Martin Muhler, and Dr. Jennifer Strunk (Industrial Chemistry). The international collaborators include scientists from the University College London, J. Heyrovský Institute of Physical Chemistry in Prague, Jagiellonian University Krakow, University of Helsinki, Universiti Teknologi Malaysia, and Hanoi University of Agriculture. Furthermore, industrial partners from Finland (Picosun), Czech Republic (Advanced Materials), and Vietnam (Q&A) have joined the team.
Jun.-Prof. Dr. Radim Beránek, Photoactive Materials Group, Faculty of Chemistry and Biochemistry at the Ruhr-Universität, 44780 Bochum, Germany, Tel. +49/234-32-29431, E-mail: email@example.com
Editorial journalist: Dr. Julia Weiler
Dr. Josef König | idw
Climate Impact Research in Hannover: Small Plants against Large Waves
17.08.2018 | Leibniz Universität Hannover
First transcription atlas of all wheat genes expands prospects for research and cultivation
17.08.2018 | Leibniz-Institut für Pflanzengenetik und Kulturpflanzenforschung
New design tool automatically creates nanostructure 3D-print templates for user-given colors
Scientists present work at prestigious SIGGRAPH conference
Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and...
Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...
Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.
When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...
Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.
Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....
Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.
Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...
17.08.2018 | Event News
08.08.2018 | Event News
27.07.2018 | Event News
17.08.2018 | Physics and Astronomy
17.08.2018 | Information Technology
17.08.2018 | Life Sciences