化工新型材料
化工新型材料
화공신형재료
NEW CHEMICAL MATERIALS
2010年
1期
61-63
,共3页
TiO_2纳米管%Ag粒子%可见光吸收%光催化
TiO_2納米管%Ag粒子%可見光吸收%光催化
TiO_2납미관%Ag입자%가견광흡수%광최화
TiO_2 nanotube%Ag quantum dot%visible-light absorption%photocatalyst
简单两步法制备载Ag的TiO_2纳米管.采用溶胶-凝胶结合水热法制备TiO_2纳米管(TiNT),利用传统的"银镜反应",得到表面载Ag的TiO_2纳米管(Ag-TiNT).利用X射线衍射(XRD)、高分辨率透射电镜(TEM)、电子衍射能谱(EDS)对产物进行了表征.结果表明,Ag粒子均匀地分散在纳米管的外表面.从UV-Vis吸收光谱上可以观察到,载银的TiO_2纳米管在可见光区域的吸收有了明显提高.
簡單兩步法製備載Ag的TiO_2納米管.採用溶膠-凝膠結閤水熱法製備TiO_2納米管(TiNT),利用傳統的"銀鏡反應",得到錶麵載Ag的TiO_2納米管(Ag-TiNT).利用X射線衍射(XRD)、高分辨率透射電鏡(TEM)、電子衍射能譜(EDS)對產物進行瞭錶徵.結果錶明,Ag粒子均勻地分散在納米管的外錶麵.從UV-Vis吸收光譜上可以觀察到,載銀的TiO_2納米管在可見光區域的吸收有瞭明顯提高.
간단량보법제비재Ag적TiO_2납미관.채용용효-응효결합수열법제비TiO_2납미관(TiNT),이용전통적"은경반응",득도표면재Ag적TiO_2납미관(Ag-TiNT).이용X사선연사(XRD)、고분변솔투사전경(TEM)、전자연사능보(EDS)대산물진행료표정.결과표명,Ag입자균균지분산재납미관적외표면.종UV-Vis흡수광보상가이관찰도,재은적TiO_2납미관재가견광구역적흡수유료명현제고.
Ag deposited TiO_2 nanotubes were synthesized by a simple two-step method. TiO_2 nanotubes (TiNT) were fabricated by a hydrothermal process and Ag nanopartieles of 2～5nm were loaded onto TiNT using a traditional "sil-ver mirror reaction". By the investigations of X-ray diffraction (XRD), high-resolution transmission electron microscope (HRTEM) and energy dispersive spectrum (EELS), it was confirmed that Ag quantum dots were uniformly deposited on the outer wall of the nanotubes. An obvious enhanced absorption behavior to visible-light was observed in the ultraviolet-visible diffuse reflectance spectra (UV-vis DRSs) of Ag loaded TINT.
