Clean Water Water Detoxification Using Innovative vi-nanocatalysts
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1 Clean Water Water Detoxification Using Innovative vi-nanocatalysts Project verview: Part I Project Coordinator: Dr. Polycarpos Falaras National Center for Scientific Research Demokritos Greece FP7-ENV-NMP : Nanotechnologies for water treatment CPERATIN: Theme 6 - Environment ( Including Climate Change ) Theme 4 - Nanosciences, Nanotechnologies, Materials and new Production technologies Nanotechnology meets water treatment 26 ctober 2010 Aachen, Germany
2 26 ctober 2010 Aachen, Germany Participant Country Main Mission/Business Activity/Area of activity RTD role in the project National Center for Scientific Research Demokritos (NCSRD) Greece Nanostructured titania optimization Membrane manufactory-modification Cyanobacterial toxin MC-LR, geosmine and 2-methylisoborneol analysis Coordination Materials development Validation of technology Risk assessment Cost effectiveness smosistemi (SMSISTEMI) Italy Reverse smosis/photocatalytic Reactor Design Process engineering Technology transfer Cost effectiveness Innovative Research and Technology Ltd (IRT) UK Dissemination/Exploitation of results Technology management IPRs Cost effectiveness University of Las Palmas de Gran Canaria (ULPGC) Spain Preparation of N doped titania materials and titania modification with activated carbon Large scale evaluation of Photocatalytic properties Materials development Validation of technology Scale up - Risk assessment Cost effectiveness Faculdade de Engenharia da Universidade do Porto (FEUP) Portugal Nanostructured Ti 2 /CNTs preparation. Photo-degradation of phenols, dyes, pesticides-process optimization Materials development. Validation of technology ARMINES (GEPEA- Universite de Nantes-Ecole Des Mines de Nantes) France Materials evaluation in the degradation of endocrine disrupting compounds Validation of technology University of Cincinnati (UC) USA Photodegradation of cyanobacterial toxins. Consulting in process & development Technology transfer
3 26 ctober 2010 Aachen, Germany Advanced Technologies for Water Purification Membranes, advanced oxidation technologies (ATs), UV disinfection, Membrane technology (microfiltration, ultrafiltration, nanofiltration, reverse osmosis) Limitations Physical separation (i.e. sieving ) Fouling (physical fouling, biofouling) Ti 2 Photocatalysis A very promising Advanced xidation Technology Limitations Requires UV-irradiation (λ 380 nm) provided by commercial UV lamps or the UV portion (~5%) of solar light
4 Concept Nanotechnology meets water treatment 26 ctober 2010 Aachen, Germany Visible-light active Ti 2 nanocatalysts Nanofiltration membrane technology N, C-doping, activated carbon, carbon nanotube/ti 2 Membrane/reactor engineering for target analytes vis-catalytic NF membrane intermediate borosilicate glass tube Asymmetric polymer fibers with Ti 2/MWNTs outer borosilicate glass tube SEM cross section of the asymmetric polymer fibers SEM cross section of the NF membrane Visible-light, photocatalyticaly active nanofiltration membranes for target water pollutants (phenols, pesticides, azo-dyes, cyanobacterial toxins, MC-LR, geosmine, 2-metylisoborneol endocrine disrupting compounds)-development of analytical methods-toxicity-upscale Viable Clean Water technology Viable Clean Water technology
5 26 ctober 2010 Aachen, Germany bjectives The development of innovative nanostructured UV-Vis photocatalysts The development of composite carbon nanotubes/titania nanostructures Photocatalyticaly active nanofiltration membranes for target water pollutants Evaluation of materials activity for the photodegradation of water pollutants-development of analytical methods Development of laboratory UV-vis membrane photoreactors Up-scaling of Materials and Processes Evaluation of the efficiency of the novel photocatalytic methods at the reduction-elimination of toxicity
6 26 ctober 2010 Aachen, Germany Carbon nanotube- Ti 2 nanocomposites CNT functionalization sol-gel, hydrothermal, CVD polymeric nanofibers Photocatalytic water detoxification I Phenols, pesticides, azo-dyes, reaction intermediates under UV-Vis UV-Vis Ti 2 nanocatalysts Self-assembly sol-gel anion doping, activated carbon CLEAN WATER CLEAN WATER Photocatalytic membrane reactor Up-scaling of Materials & Processes Cost effectiveness Photocatalytic NF membranes CVD -tailored pore size & retention efficiency for target pollutants Photocatalytic water detoxification II Cyanobacterial MC-LR, GSM, 2-MIB, endocrine disruptors analytical methods, toxicity
7 26 ctober 2010 Aachen, Germany Nanostructured UV-Vis titania photocatalysts by the sol-gel method Modified sol-gel Ethanol : titanium(iv) butoxide (50 : 3.5 ) Water:ethatol:citric acid (50:60.8:0.36) Highly active Ti 2 photocatalysts (001) (101) Surfactant assisted sol-gel Ti HN NH Ti Ti F N Ti HN F Ti Ti F N NH Ti HN Ti Ti F N VID F Ti F Ti Details on Prof. Dona- Rodriguez presentation and posters NH Ti Ti HN Ti F N F Ti NH Ti Use of surfactants acting simultaneously as a pore templating material and anion source to tailordesign the structural properties of Ti 2. Additional reactants (e.g urea, ) were used as sources for doping to narrow its band gap and induce visible-light activity. Mesoporous anion doped titania NF-Ti 2, N-, S-, C-Ti 2 NF-Ti 2 Control Ti 2
8 Composite carbon nanotubes/titania nanostructures Nanotechnology meets water treatment 26 ctober 2010 Aachen, Germany I. Chemical Vapor Deposition II. Wet chemistry Funtionalization of carbon nanotubes (e.g. hydrothermal HN 3 ) Adsoprtion of titanium tetraisopropoxide (TTIP) on the pore walls of anodized alumina oxide (AA) filters Formation of Ti 2 nanotubes after leaching of the AA template Growth of carbon nanotubes by CVD in the AA/Ti 2 nanotube template See details on relevant posters
9 26 ctober 2010 Aachen, Germany Development of photocatalytically active nanofiltration membranes Chemical Vapor Deposition Deposition on the inner membrane surface Deposition of a Ti 2 layer on the internal and external surface of the nanofiltration membrane tube by alternating the reactant streams Deposition on the outer membrane surface Details on G. Romanos presentation
10 26 ctober 2010 Aachen, Germany Evaluation of materials activity for the degradation of water pollutants Model water pollutants-toxicity Phenols Emerging water pollutants Development of analytical methods-toxicity Cyanobacterial toxins Cyanobacterial toxins Microcystin-LR Geosmin 2-Methylisoborneol Azo-dyes initial rate (mmol/(l s m2)) 1,6E-04 1,4E-04 1,2E-04 1,0E-04 8,0E-05 6,0E-05 4,0E-05 2,0E-05 0,0E ,5 1 1,5 2 Initial concentration (mm) Endocrine disrupting compounds Endocrine disrupting compounds Pesticides Vibrio fischeri toxicity test P-25 ECT-1023 Hombikat P25-H22 ECT-1023-H22 Hom-H22 P25-N2 ECT-1023-N2 Hom-N2 H 17β-estradiol H H H H Bisphenol A H H Tetracycline H H NH 2 H CH 3 H H N(CH 3 ) 2 See details on Prof. Dona-Rodriguez presentation and relevant posters
11 26 ctober 2010 Aachen, Germany Merging Advanced xidation Processes (AP) with Membrane Technology in an efficient Continuous Flow Photocatalytic Membrane Reactor Ti 2 decorated carbon nanotubes Ti 2 decorated NF membrane Anion doped Ti 2 embedded in PMMA Fibers Scale-up Pending European Patent: P. Falaras, G. Romanos, P. Aloupogiannis, No (filing date 20 July 2010)
12 26 ctober 2010 Aachen, Germany Interaction between partners Exchange of samples Short stays in partner s laboratories Staff training (phd students, post-docs, researchers) Technology tranfer Dissemination Publications* Papers: 7 Conferences: 19 presented 7 upcoming Patent: 1 submitted (European patent) Expressions of Interest (adventech, EYDAP s.a,, Development Agency of Karditsa s.a.) Additional dissemination (ADEME brochure, EPF society,..) *see for the full publication list
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