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“PROYECTO INTERINSTITUCIONAL CORNELL UNIVERSITY -‐ UNIVERSIDAD INDUSTRIAL DE SANTANDER PARA LA
PRODUCCIÓN DE MATERIALES NANOCOMPUESTOS CON BASE EN FIBRAS DE FIQUE Y ÓXIDOS DE METALES DE
TRANSICIÓN (Zn, Fe) CON APLICACIONES AMBIENTALES”.
Convocatoria No. 547 para conformar un banco de proyectos para esSmular la creación de vínculos colaboraSvos en el campo de la ciencia, la tecnología y la innovación entre la diáspora cienYfica colombiana y los actores del sistema
nacional de CT+I año 2011-‐2012.
CrisSan Blanco-‐Tirado, Marianny Y. Combariza
Associate Professors, Escuela de Química, Universidad Industrial de Santander Bucaramanga, Santander 680002, Colombia
E-‐mail: [email protected], [email protected]
Juan P Hinestroza
Associate Professor of Fiber Science, Department of Fiber Science and Apparel Design, Cornell University, Ithaca NY 14853
E-‐mail: [email protected]
Once upon a time…
MulSfuncSonal texSle fibers via nanoscale phenomena
manipulaSon
+ Macromolecules self assembly, transiSon metal complexes and oxides, environmental analyScal
chemistry
2008
Family: Agavaceae, Genus: Furcraea, Species: macrophylla, cabuya, castilla
• Raw: High oxygen density
• Modified: Cationic, anionic
• Noble metals: Ag, Au • Transition Metal oxides: Fe, Mn, Cu, Zn • Metal Organic Frameworks: MOFs
• Functional materials • Environmentally friendly • Improved thermal and mechanical properties
Nanostructured materials Biocomposites Natural Fibers
High oxygen density Porous surface
Facilitates NP in situ deposition and stabilization No monolayers needed
Hinestroza, J. P., 2007. Can nanotechnology be fashionable?. Co[on gets a makeover, turning it from an old-‐fashioned material into a fabric for the future. Materials Today, vol. 10, n. 9, pp 56.
H2O )))))))) H. + OH.
H. + H. H2 .OH + .OH H2O2
2MnO2 + 2OH-‐ + H2O 2[MnO4-‐] + 3H2 + 6H+
MnO4-
O- Na+ MnO4-
O- Na+ MnO4-
Alkali cellulose
Okitsu, K, et al., Sonochemical reduction of permanganate to manganese dioxide: The effects of H2O2 formed in the sonolysis of water on the rates of reduction. Ultrasonics Sonochemistry, 2009, 16, 387–391.
Chacón-Patiño, M.L., Blanco-Tirado, C., Hinestroza, J.P., Combariza, M.Y., Biocomposite of nanostructured MnO2 and fique fibers for efficient dye degradation, Green Chem., 2013, 15, 2920–2928.
1 µm
200 nm 200 nm
Marianny Y Combariza, Sergio A Ovalle, Vanessa Carrillo, Juan P Hinestroza, CrisSan Blanco-‐Tirado, Bionanocomposite of zinc oxide and cellulosic fibers, ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2013/4/7, Vol 245.
Zn(OH)2 + 6H2O [Zn(H2O)6]2+ + 2OH-‐
Zn2+ [Zn(H2O)6]2+
Zn(OH)2(aq) + H2O(l) ZnO(s) + 2H+ + 2OH-‐
Marianny Y Combariza, Sergio A Ovalle, Vanessa Carrillo, Juan P Hinestroza, CrisSan Blanco-‐Tirado, Bionanocomposite of zinc oxide and cellulosic fibers, ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2013/4/7, Vol 245.
Marianny Y Combariza, Sergio A Ovalle, Vanessa Carrillo, Juan P Hinestroza, CrisSan Blanco-‐Tirado, Bionanocomposite of zinc oxide and cellulosic fibers, ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2013/4/7, Vol 245.
Fe3+ + H2O Fe(OH)x3-‐x + H+
Fe2+ + H2O Fe(OH)y2-‐y + H+
Fe(OH)x3-‐x + Fe(OH)y2-‐y + NH3 Fe3O4
MASSART, R. PreparaSon of aqueous magneSc liquids in alkaline and acidic media. IEEE Transac*ons of magne*cs. (1981) 17, 1247. GUPTA, Ajay Kumar and GUPTA, Mona. Synthesis and surface engineering of iron oxide nanoparScles for biomedical applicaSons. Biomaterials 26, (2005) 3995–4021.
ENVIRONMENTAL APPLICATIONS:
Cellulose-‐MnO2 NPs Cellulose-‐Fe3O4 NPs Cellulose-‐Fe2O3 NPs
Indigo, sulfur dyes, surfactants, mordants, sodium hydroxide
Percursor concentration
(mM) 2 5 10 30 100
Color removal at λ600
98.80 ± 0.35
98.25 ± 0.15
98.10 ± 0.13
96.85 ± 0.10
96.05 ± 0.10
Chacón-Patiño, M.L., Blanco-Tirado, C., Combariza, M.Y., UIS, Patent Filed Ravelo-Nieto E, Blanco-Tirado C., Hinestroza J.P., Combariza M.Y., UIS-Cornell Patent in progress..
Chacón-Patiño, M.L., Blanco-Tirado, C., Combariza, M.Y., UIS, Patent Filed Ravelo-Nieto E, Blanco-Tirado C., Hinestroza J.P., Combariza M.Y., UIS-Cornell Patent in progress..
Indigo, sulfur black, surfactants (caSonic or anionic), mordants (Sodium sulphide, sodium chloride), sodium hydroxide
UIS Investment: 15M USD Lab space & Robust analyScal infrastructure: NMR, XRD, XRF, ATR, DR, DLS, MS, HPLC, RAMAN, FESEM, AFM.
Preliminary results thanks to UIS internal grant programs, Santander´s Governors Office and Cornell nanotechnology lab (Prof. JP Hinestroza)
Networking is fundamental, keep alive your contacts!! Even be[er, make good friends… they last forever… TexSles nanotechnology lab (Prof J.P. Hinestroza)
Cornell Center for Materials Research Shared FaciliSes NSF MRSEC program (DMR-‐1120296). SEM, TEM, XPS.
Colombian Science, Technology and InnovaSon Department-‐COLCIENCIAS
World Bank Group
Chemistry Department GTECH Park
Prof. Juan P Hinestroza Cornell University
GRACIAS
