Coating of cellulose-TiO2 nanoparticles on cotton fabric for durable photocatalytic self-cleaning and stiffness.
A new route to make cotton fabric self-cleaning and permanently stiff by coating cellulose-TiO2 on its surface is demonstrated herein. Cellulose-TiO2 dispersion was used for coating and was prepared by mixing TiO2 nanoparticles with cellulose in 60% H2SO4 solution. The surface morphology of cellulose-TiO2 nanoparticles coated sample was analyzed by SEM. The appearance of white TiO2 particles on the surface of the cotton fabric confirmed the successful coating process. The Orange II dye was used as stain and its degradation was observed under UV light. X-ray diffraction analysis showed that cellulose II content increases slightly (by 5.3%) after the solvent treatment. Washing fastness study showed that the fabric stiffness was permanent and self-cleaning properties were stable with 1, 3 and 5% TiO2 coated samples. Air and water vapor permeability was not decreased considerably, whereas tensile strength was increased significantly after coating.
Department of Material Engineering, Technical University of Liberec, Studenska 1402/2, 46117 Liberec, Czech Republic; School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA. Electronic address: bmkale41@gmail.com.
Bandu Madhukar
BM
Kale
Department of Material Engineering, Technical University of Liberec, Studenska 1402/2, 46117 Liberec, Czech Republic.
Jakub
J
Wiener
Department of Material Engineering, Technical University of Liberec, Studenska 1402/2, 46117 Liberec, Czech Republic.
Jiri
J
Militky
Department of Material Engineering, Technical University of Liberec, Studenska 1402/2, 46117 Liberec, Czech Republic.
Samson
S
Rwawiire
Department of Material Engineering, Technical University of Liberec, Studenska 1402/2, 46117 Liberec, Czech Republic.
Rajesh
R
Mishra
School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
Karl I
KI
Jacob
School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
Youjiang
Y
Wang
D000388:Air; D002384:Catalysis; D002482:Cellulose / Q000737:chemistry*; D032561:Cotton Fiber; D055595:Mechanical Phenomena; D053758:Nanoparticles / Q000737:chemistry*; D055668:Photochemical Processes; D013227:Steam; D013464:Sulfuric Acids / Q000737:chemistry; D014025:Titanium / Q000737:chemistry*
D013227:Steam; D013464:Sulfuric Acids; C009495:titanium dioxide; D002482:Cellulose; D014025:Titanium; C033158:sulfuric acid
Cellulose II; Cellulose coating; Cotton; Self-cleaning; Stiffness; TiO(2)