Sol-gel synthesis of TiO2nanoparticles: effect of Pluronic P123 on particle's morphology and photocatalytic degradation of paraquat.
We report a facile method to tune TiO2nanoparticles' morphology by modifying and an acid-catalyzed sol-gel synthesis with Pluronic P123. Synthesized particles were characterized by transmission electron microscopy, BET analysis, and X-ray diffraction spectroscopy. XRD analysis revealed a high anatase content while BET measurements showed that porous volume strongly depends on the amount of P123. We demonstrate that high amounts of P123 increase particle's aspect-ratio from spherical to rod-shape morphology. We evaluated the photocatalytic performances for the removal of methyl viologen (paraquat) and found that best performances are obtained for the following weight ratio P123/TiO2= 7.5. Furthermore, P25 is less active than synthesized nanoparticles.
Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), CNRS-UMR7515-University of Strasbourg, Saint-Avold Antenna, Université de Lorraine, 12 rue Victor Demange, 57500, Saint-Avold, France. cdric.ma@gmail.com.|Institut national de la recherche scientifique (INRS-Terre et Environnement), Université du Québec, 490 rue de la Couronne, Québec City, G1K 9A9, Canada. cdric.ma@gmail.com.
Cédric B D
CBD
Marien
Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), CNRS-UMR7515-University of Strasbourg, Saint-Avold Antenna, Université de Lorraine, 12 rue Victor Demange, 57500, Saint-Avold, France.
Clément
C
Marchal
IUT Moselle-Est, département Chimie de Saint-Avold, Université de Lorraine, rue Victor Demange, 57500, Saint-Avold, France.
Alain
A
Koch
Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), CNRS-UMR7515-University of Strasbourg, Saint-Avold Antenna, Université de Lorraine, 12 rue Victor Demange, 57500, Saint-Avold, France.
Didier
D
Robert
Institut national de la recherche scientifique (INRS-Terre et Environnement), Université du Québec, 490 rue de la Couronne, Québec City, G1K 9A9, Canada.
Patrick
P
Drogui
D002384:Catalysis; D008027:Light; D053758:Nanoparticles / Q000737:chemistry; D010269:Paraquat / Q000737:chemistry*; D011060:Poloxalene; D014025:Titanium / Q000737:chemistry
C009495:titanium dioxide; C464484:pluronic block copolymer P123; D011060:Poloxalene; D014025:Titanium; D010269:Paraquat
Methyl viologen; Nanorods; Photocatalysis; Sol-gel; TiO2 nanoparticles
ACS Appl Mater Interfaces. 2015 Sep 2;7(34):19324-34
26262595
J Colloid Interface Sci. 2011 May 1;357(1):163-7
21349533
Phys Chem Chem Phys. 2014 Oct 14;16(38):20382-6
25144471
J Phys Chem B. 2005 Mar 24;109(11):4947-52
16863152
J Food Drug Anal. 2014 Mar;22(1):49-63
24673903
J Biochem Biophys Methods. 2005 Dec 31;65(2-3):45-80
16297980
Chem Commun (Camb). 2002 Sep 7;(17):1824-5
12271627
Crit Rev Toxicol. 2008;38(1):13-71
18161502