| 초록 |
Photocatalytic reduction of carbon dioxide (CO2) into energy-rich products has been recognized as the ideal solution for rising atmospheric levels of CO2 as well as the depletion of fossil fuel reserves. However, photocatalysts so far have been shown poor catalytic performance in terms of yield, product selectivity, and usage of visible light, even by using noble metal as cocatalyst. In this respect, we mimic the leaf’s three dimensional macroporous pathway, the best form for efficient diffusion and adsorption of CO2 in the world with grapheme aerogel, and treat the surface, like a leaf, with molybdenum disulphide (MoS2) for metal free cocatalys of CO2 conversion photocatalyst for the first time. Scanning transmission electron microscopies identify fine mesophyll-like structure and X-ray diffraction and Raman spectroscopy show the TiO2 and MoS2 was well fabricated on the photocatalyst in a one-step reaction. |
