Molecular-Scale Transition Metal Oxide Nanocluster Surface-Modified Titanium Dioxide as Solar-Activated Environmental Catalysts
Molecular-Scale Transition Metal Oxide Nanocluster Surface-Modified Titanium Dioxide as Solar-Activated Environmental Catalysts
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DOI：
10.1021/jp412312m
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发表时间：
2014-04
影响因子：
3.7
通讯作者：
H. Tada;Q. Jin;Anna Iwaszuk;M. Nolan
中科院分区：
文献类型：
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作者：
H. Tada;Q. Jin;Anna Iwaszuk;M. Nolan
由于环境污染的无界性，环境催化剂的开发是世界各国科学家和工程师迫切需要解决的课题。我们将这种能够有效利用太阳能从紫外线到红外线分解污染物的催化剂命名为“太阳能环境催化剂”。本文综述了一类新型的由TiO2和分子尺度的三维金属氧化物组成的太阳能环境催化剂的研究进展，并对表面的d10 (Sn) （MOs/TiO2）进行了比较。利用化学吸附-煅烧循环（CCC）技术对TiO2进行MO团簇表面改性，为精细调整价带顶部提供了新的能带工程，而MOs/TiO2独特的物理化学和电子性质使其具有出色的光催化和热催化活性，可以分解有机污染物。在引言之后的第一部分，介绍了CCC成形技术。
The development of environmental catalysts is an urgent subject to be tackled by scientists and engineers all over the world due to the borderless nature of environmental pollution. We named the catalyst enabling the decomposition of the pollutants by effectively utilizing the solar energy from ultraviolet to infrared as “solar environmental catalysts”. This Feature Article reviews the recent studies on a novel class of solar environmental catalysts consisting of TiO2 and molecular scale oxides of 3d metals and for comparison d10 (Sn) on the surface (MOs/TiO2). The TiO2 surface modification with MO clusters by the chemisorption–calcination cycle (CCC) technique presents novel band engineering for finely tuning the top of the valence band, while the unique physicochemical and electronic properties of MOs/TiO2 give rise to the outstanding photo- and thermocatalytic activities for the decomposition of organic pollutants. In the first part following the Introduction, the CCC technique for forming extremely sm...