Self-Assembly of Metal and Metal Oxide Nanoparticles and Nanowires into a Macroscopic Ternary Aerogel Monolith with Tailored Photocatalytic Properties
Source abstract
Abstract
Self-assembly processes represent the most powerful strategy to produce complex materials with unique structural and compositional sophistication. Here we present such a self-assembly route to a three-component aerogel from preformed nanoparticle building blocks. Starting with a mixture of gold and anatase nanoparticles and tungsten oxide nanowires, controlled cogelation resulted in the formation of a macroscopic aerogel monolith with high specific surface area and porosity, remarkable transparency, and excellent crystallinity. The modular approach enables us to fine-tune the composition of the aerogels, and thus their properties, by choosing the appropriate building blocks and their relative concentration ratios. As an illustrative example, we show the targeted tailoring of the photocatalytic activity: the gold nanoparticles and the tungsten oxide nanowires both add their specific beneficial effects to the anatase aerogel matrix, leading to a superior performance of the three-component system.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Catalytic Processes in Materials Science · ZnO doping and properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Laboratory of Multifunctional Materials, Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 5, CH-8093 Zurich, Switzerland
Department of Chemistry, Federal University of São Carlos, Rod. Washington Luís, km 235, São Carlos, Sao Paulo CEP 13560-970, Brazil
Scientific Center for Optical and Electron Microscopy (SCOPEM), Auguste-Piccard-Hof 1, CH-8093 Zurich, Switzerland
Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, CH-8093 Zurich, Switzerland
Embrapa Instrumentation, Rua XV de Novembro, 1452, Caixa Postal 741, São Carlos, Sao Paulo CEP 13560-970, Brazil
Funding
Eidgenössische Technische Hochschule Zürich · Conselho Nacional de Desenvolvimento Científico e Tecnológico · China Scholarship Council
References (39)
Show source-provided references
1. Grätzel M. · Acc. Chem. Res. · 2009 · 42 · 178810.1021/ar900141y ↗
2. Arico A. S. · Nat. Mater. · 2005 · 4 · 36610.1038/nmat1368 ↗
3. Ashokkumar M. · Int. J. Hydrogen Energy · 1998 · 23 · 42710.1016/S0360-3199(97)00103-1 ↗
4. Ni M. · Renewable Sustainable Energy Rev. · 2007 · 11 · 40110.1016/j.rser.2005.01.009 ↗
5. Carp O. · Prog. Solid State Chem. · 2004 · 32 · 3310.1016/j.progsolidstchem.2004.08.001 ↗
6. Fujishima A. · Surf. Sci. Rep. · 2008 · 63 · 51510.1016/j.surfrep.2008.10.001 ↗
7. Fujishima A. · C. R. Chim. · 2006 · 9 · 75010.1016/j.crci.2005.02.055 ↗
8. Chen X. · Chem. Rev. · 2007 · 107 · 289110.1021/cr0500535 ↗
9. Choi W. Y. · J. Phys. Chem. · 1994 · 98 · 1366910.1021/j100102a038 ↗
10. Anpo M. · J. Catal. · 2003 · 216 · 50510.1016/S0021-9517(02)00104-5 ↗
11. Pietron J. J. · Nano Lett. · 2002 · 2 · 54510.1021/nl025536s ↗
12. Li X. Z. · J. Photochem. Photobiol., A · 2001 · 141 · 20910.1016/S1010-6030(01)00446-4 ↗
13. Schneider M. · Catal. Rev. - Sci. Eng. · 1995 · 37 · 51510.1080/01614949508006450 ↗
14. Hüsing N. · Angew. Chem., Int. Ed. · 1998 · 37 · 2310.1002/(SICI)1521-3773(19980202)37:1/2<22::AID-ANIE22>3.0.CO;2-I ↗
15. Akimov Y. K. · Instrum. Exp. Technol. · 2003 · 46 · 28710.1023/A:1024401803057 ↗
16. Gaponik N. · J. Phys. Chem. Lett. · 2012 · 3 · 810.1021/jz201357r ↗
17. Mohanan J. · J. Non-Cryst. Solids · 2004 · 350 · 110.1016/j.jnoncrysol.2004.05.020 ↗
18. Arachchige I. U. · J. Am. Chem. Soc. · 2007 · 129 · 184010.1021/ja066749c ↗
19. Mohanan J. · Science · 2005 · 307 · 39710.1126/science.1104226 ↗
20. Arachchige I. · J. Am. Chem. Soc. · 2006 · 128 · 796410.1021/ja061561e ↗
21. Rechberger F. · Angew. Chem., Int. Ed. · 2014 · 53 · 682310.1002/anie.201402164 ↗
22. Bigall N. C. · Angew. Chem., Int. Ed. · 2009 · 48 · 973110.1002/anie.200902543 ↗
23. Gill S. K. · J. Sol-Gel Sci. Technol. · 2011 · 57 · 6810.1007/s10971-010-2325-3 ↗
24. Gill S. K. · Chem. Commun. · 2009 · 438410.1039/b903044a ↗
25. Hendel T. · Adv. Funct. Mater. · 2013 · 23 · 190310.1002/adfm.201201674 ↗
26. Heiligtag F. J. · J. Mater. Chem. · 2011 · 21 · 1689310.1039/c1jm11740h ↗
27. Heiligtag F. J. · J. Sol-Gel Sci. Technol. · 2014 · 70 · 30010.1007/s10971-013-3232-1 ↗
28. Herrmann A.-K. · Chem. Mater. · 2013 · 26 · 107410.1021/cm4033258 ↗
29. Kamat P. V. · J. Phys. Chem. B · 2002 · 106 · 772910.1021/jp0209289 ↗
30. Polleux J. · Chem. - Eur. J. · 2005 · 11 · 354110.1002/chem.200401050 ↗
31. Polleux J. · Adv. Mater. · 2004 · 16 · 43610.1002/adma.200306251 ↗
32. Penn R. L. · Geochim. Cosmochim. Acta · 1999 · 63 · 154910.1016/S0016-7037(99)00037-X ↗
33. Polleux J. · Angew. Chem., Int. Ed. · 2006 · 45 · 26110.1002/anie.200502823 ↗
34. Fricke J. · J. Non-Cryst. Solids · 1987 · 95 · 113510.1016/S0022-3093(87)80726-3 ↗
35. Reichenauer G. · J. Non-Cryst. Solids · 2001 · 285 · 16710.1016/S0022-3093(01)00449-5 ↗
36. Reichenauer G. · J. Colloid Interface Sci. · 2001 · 236 · 38510.1006/jcis.2000.7419 ↗
37. Scherer G. W. · J. Non-Cryst. Solids · 1995 · 186 · 30910.1016/0022-3093(95)00058-5 ↗
38. de Mendonca V. R. · Photochem. Photobiol. · 2014 · 90 · 6610.1111/php.12175 ↗
39. Ishibashi K.-i. · Electrochem. Commun. · 2000 · 2 · 20710.1016/S1388-2481(00)00006-0 ↗