环保科技
環保科技
배보과기
Environmental Protection and Technology
2015年
5期
46-48
,共3页
古自勇%刘练%刘洋%孙艳
古自勇%劉練%劉洋%孫豔
고자용%류련%류양%손염
TiO2纳米管%太阳能%氢气
TiO2納米管%太暘能%氫氣
TiO2납미관%태양능%경기
TiO2 nanotubes%solar energy,polar distance%hydrogen
通过阳极氧化法在纯钛片表面氧化产生高度有序 TiO2纳米管,利用 TiO2纳米管在双室光电化学池光解水产生氢气,无需外加电压,直接通过光照射即可产生氢气。同时研究产氢效率、光电转化率与极距的关系,结果表明,在一定极距范围内,光电转化率和产氢效率都是随极距增加而增加,可通过改变极距提高产氢效率。
通過暘極氧化法在純鈦片錶麵氧化產生高度有序 TiO2納米管,利用 TiO2納米管在雙室光電化學池光解水產生氫氣,無需外加電壓,直接通過光照射即可產生氫氣。同時研究產氫效率、光電轉化率與極距的關繫,結果錶明,在一定極距範圍內,光電轉化率和產氫效率都是隨極距增加而增加,可通過改變極距提高產氫效率。
통과양겁양화법재순태편표면양화산생고도유서 TiO2납미관,이용 TiO2납미관재쌍실광전화학지광해수산생경기,무수외가전압,직접통과광조사즉가산생경기。동시연구산경효솔、광전전화솔여겁거적관계,결과표명,재일정겁거범위내,광전전화솔화산경효솔도시수겁거증가이증가,가통과개변겁거제고산경효솔。
in this paper,TiO2 nanotubes with highly ordered array were prepared on the surface of pure titanium oxide films by anodic oxidation. Employing TiO2 nanotubes prepared,hydrogen was generated in the two - compartment photo electrochemical cell with no extra voltage supply other than solar energy. The relationship between polar distance and the efficiency of hydrogen generation was discussed. The result indicates that within certain ranges of polar distances,both photoelectric con-version and hydrogen generation rate go up with the increase of polar distance and the changing of the polar distance can improve the efficiency of hydrogen generation of TiO2 nanotubes.