公开(公告)号：US20110147317A1

公开(公告)日：2011-06-23

申请号：US13060194

申请日：2009-08-24

申请人： Qi Li ,  Yin Wai Li ,  Pinggui Wu ,  Rongcai Xie ,  Jian ku Shang

发明人： Qi Li ,  Yin Wai Li ,  Pinggui Wu ,  Rongcai Xie ,  Jian ku Shang

IPC分类号： A61L2/08 ,  B01J27/24 ,  A01N59/16 ,  B01J37/02 ,  A01P1/00 ,  C02F1/30 ,  B01J19/12

CPC分类号： B01J21/063 ,  B01J23/44 ,  B01J35/004 ,  B01J35/06 ,  B01J37/036 ,  C02F1/32 ,  C02F1/725 ,  C02F2305/10

摘要： Composition production methods are provided that can include providing PdO nanoparticles on a nitrogen-doped titanium oxide surface to form a catalytic mixture. Catalytic compositions and/or bactericides are provided that can include a substrate supporting Ti, O, N, and Pd. Water purification methods are provided that can include exposing an aqueous solution to a composition comprising at least a substrate supporting Ti, O, N, and Pd. Photocatalytic methods are provided that can include: providing a composition comprising one or both of Ti and Pd; exposing the composition to visible radiation to activate the composition; and in the substantial absence of the visible radiation, contacting the composition with an aqueous solution to purify the aqueous solution. Embodiments of the disclosure provide visible light photocatalysts that can demonstrate faster photocatalytic disinfection rates on Escherichia coli (E. coli) under visible light illumination as compared to nitrogen-doped titanium oxide (TiON), as well as catalytic activity after visible light illumination is substantially removed.

摘要翻译： 提供了组合物制备方法，其可以包括在氮掺杂的氧化钛表面上提供PdO纳米颗粒以形成催化混合物。 提供催化组合物和/或杀菌剂，其可以包括支持Ti，O，N和Pd的底物。 提供了水净化方法，其可以包括将水溶液暴露于至少包含支撑Ti，O，N和Pd的基材的组合物。 提供光催化方法，其可以包括：提供包含Ti和Pd中的一种或两种的组合物; 将组合物暴露于可见光辐射以激活组合物; 并且在基本上不存在可见辐射的情况下，使组合物与水溶液接触以净化水溶液。 本公开的实施方案提供了可见光光催化剂，其与氮掺杂的氧化钛（TiON）相比可在可见光照射下显示更快的对大肠杆菌（E.coli）的光催化消毒率，以及可见光照射后的催化活性基本上 删除。