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TiO2-MWCNT rice grain-shaped nanocomposites—Synthesis, characterization and photocatalysis |
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| Authors: | Zhu Peining A Sreekumaran Nair Yang Shengyuan Seeram Ramakrishna |
| Affiliation: | a Department of Mechanical Engineering, National University of Singapore, Singapore 117574, Singapore b Healthcare and Energy Materials Laboratory, Nanoscience and Nanotechnology Initiative, National University of Singapore, Singapore 117581, Singapore c NUS Graduate School for Integrative Sciences and Engineering, Singapore 117456, Singapore d Institute of Materials Research and Engineering, Singapore 117602, Singapore e King Saud University, Riyadh 11451, Kingdom of Saudi Arabia, Saudi Arabia |
| Abstract: | Titanium dioxide (TiO2)-multiwalled carbon nanotube (MWCNT) nanocomposites with a novel morphology of rice-grains are prepared by electrospinning method. Anatase-MWCNT composites (with a negligibly small percentage of rutile and brookite) are obtained by high temperature sintering of the as-spun (polymer-TiO2-MWCNT) composite fibers. The nanocomposites are characterized using spectroscopy and microscopy. The results show that the functionalized MWCNTs are integrated into the TiO2 rice grain structures. The enhanced photocatalysis of the nanocomposites in comparison to TiO2 rice grains and commercially available P-25 is demonstrated in photodegradation of Alizarin Red dye. |
| Keywords: | A Nanostructures A Semiconductors D Catalytic properties D Electrochemical properties D Optical properties |
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