期刊
ACS APPLIED MATERIALS & INTERFACES
卷 9, 期 49, 页码 42425-42429出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b13912
关键词
metal organic frameworks (MGR); TiO2; metal oxide loading; CuO; photocatalytic hydrogen evolution
资金
- Ministry of Science and Technology (MOST) of Taiwan [104-2628-E-002-008-MY3, 105-2218-E-155-007, 105-2221-E-002-003-MY3, 105-2221-E-002-227-MY3, 105-2622-E155-003-CC2]
- Aim for Top University Project at National Taiwan University [105R7706]
- Grants-in-Aid for Scientific Research [26708027] Funding Source: KAKEN
Mixed metal oxide nanoparticles have interesting physical and chemical properties, but synthesizing them with colloidal methods is still challenging and often results in very heterogeneous structures. Here, we describe a simple-method to synthesize mesoporous titania nanoparticles implanted with a uniform distribution of copper oxide nanocrystals (CuO@MTs). By calcining a titanium-based metal organic framework (MIL-125) in the presence of Cu ions, we can trap the Cu in the TiO2 matrix. Removal of the organic ligand creates mesoporosity and limits 'phase separation so that tiny CuO nanocrystals form in the interstices of the TiO2. The CuO@MTs exhibits superior performance for photocatalytic hydrogen evolution (4760 mu mol h(-1)) that is >90 times larger than pristine titania.
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