CAJ | 학술논문

本文以钛酸四丁酯为原料，采用溶胶-凝胶法制备掺杂N-Zr-Y-S的n型、B-Zr-Y的P型以及p-n型干凝胶，将各种干凝胶在不同温度下焙烧制得纳米光催化剂，以甲基橙为目标降解物，考察它们的光催化活性．实验结果表明：a、相同温度、相同时间焙烧的P型TiO2光催化剂的光催化活性大于n型；b、以未焙烧的P型干凝胶制备出来的p-n型催化剂的催化效率比P型干凝胶在不同温度下焙烧后制备的p-n结型光催化剂高；c、在可见光条件下，未焙烧的P型制备出来干凝胶在250℃下焙烧所得p-n型催化剂的催化效率是最高的．
본문이태산사정지위원료，채용용효-응효법제비참잡N-Zr-Y-S적n형、B-Zr-Y적P형이급p-n형간응효，장각충간응효재불동온도하배소제득납미광최화제，이갑기등위목표강해물，고찰타문적광최화활성．실험결과표명：a、상동온도、상동시간배소적P형TiO2광최화제적광최화활성대우n형；b、이미배소적P형간응효제비출래적p-n형최화제적최화효솔비P형간응효재불동온도하배소후제비적p-n결형광최화제고；c、재가견광조건하，미배소적P형제비출래간응효재250℃하배소소득p-n형최화제적최화효솔시최고적．
The n type gels of N-Zr-Y-S-dope, n type gels of B-Zr-Y-doped and the p-n junction type of TiO2 were prepared with Ti（OC4H9）4 as a rawmaterial in sol-gel methods. They were baked at differrent temperatures to be made into nanophotocatalysts. In order to investigate their photocatalytic activities, the methyl orange is used as the target degradating substance. The experimental resuits show following conclusions： at the condition of the same roasting temperatureand and time, the photocatalytic activities of the p type of photocalysts are higher than that of the n type; the catalytic efficiencies of the photocatalysts with p-n junction prepared with the unbaked p type gels are higher than that of the photocatalysts with p-n junction prepared with the baked p type gels; the photocatalytic degradating efficience of the p-n junction photocatalysts baked at 250℃ prepared with the unbaked p type gels is the highest under the visible light.