日前，美国桑迪亚国家实验室（Sandia National Laboratories，USA）的研究人员成功开发出一种合成二氧化钛纳米牡子的新方法，该工艺成本低康。有着良好的应用前最。二氧化钛纳米粒子作为光封裟材料的填料，用于LED、太阳能电池等光电...日前，美国桑迪亚国家实验室（Sandia National Laboratories，USA）的研究人员成功开发出一种合成二氧化钛纳米牡子的新方法，该工艺成本低康。有着良好的应用前最。二氧化钛纳米粒子作为光封裟材料的填料，用于LED、太阳能电池等光电器件上，可有效提高产品的折射率，但是由于传统工艺制备二氧化钛纳米粒子具有技术复杂、价格昂贵等缺点，导致该产品在上述领域的应用受到极大制约。桑迪亚国宦实验室的研究人员采用廉价易得的酒精作为溶剂，通过控制工艺条件得到理想的产品。所碍二氧化钛产品的粒径为5nm，约是可见光波长的1／100，几乎不存在光的散射，从而可提高光封装材料的透光度和折射率。目前该实验室正寻求商业合作伙伴，以推动该技术的市场化进程。展开更多
We investigated the photovoltaic properties of series of TiO 2 photocatalysts by means of SPS and found that the thresholds of TiO 2 particles blue shift with their particle sizes decreasing and crystal phases changin...We investigated the photovoltaic properties of series of TiO 2 photocatalysts by means of SPS and found that the thresholds of TiO 2 particles blue shift with their particle sizes decreasing and crystal phases changing from rutile TiO 2 to anatase TiO 2. Combining with the photodegradation activities of TiO 2 on C 7H 16 , it was concluded that the photocatalytic activities of TiO 2 increase with their thresholds increasing,which can be explained using energy band theory. We also investigated the relationship beween the photovoltaic properties and photocatalytic activities of B TiO 2 before and after photooxidation on C 7H 16 , SO 2 and C 7H 16 +SO 2, respectively and found adsorbates at the surface of TiO 2 affect their photocatalytic activities and conduction types of surface layer.展开更多
文摘日前，美国桑迪亚国家实验室（Sandia National Laboratories，USA）的研究人员成功开发出一种合成二氧化钛纳米牡子的新方法，该工艺成本低康。有着良好的应用前最。二氧化钛纳米粒子作为光封裟材料的填料，用于LED、太阳能电池等光电器件上，可有效提高产品的折射率，但是由于传统工艺制备二氧化钛纳米粒子具有技术复杂、价格昂贵等缺点，导致该产品在上述领域的应用受到极大制约。桑迪亚国宦实验室的研究人员采用廉价易得的酒精作为溶剂，通过控制工艺条件得到理想的产品。所碍二氧化钛产品的粒径为5nm，约是可见光波长的1／100，几乎不存在光的散射，从而可提高光封装材料的透光度和折射率。目前该实验室正寻求商业合作伙伴，以推动该技术的市场化进程。
文摘We investigated the photovoltaic properties of series of TiO 2 photocatalysts by means of SPS and found that the thresholds of TiO 2 particles blue shift with their particle sizes decreasing and crystal phases changing from rutile TiO 2 to anatase TiO 2. Combining with the photodegradation activities of TiO 2 on C 7H 16 , it was concluded that the photocatalytic activities of TiO 2 increase with their thresholds increasing,which can be explained using energy band theory. We also investigated the relationship beween the photovoltaic properties and photocatalytic activities of B TiO 2 before and after photooxidation on C 7H 16 , SO 2 and C 7H 16 +SO 2, respectively and found adsorbates at the surface of TiO 2 affect their photocatalytic activities and conduction types of surface layer.
