%0 Journal Article
%T 可见光活性的氮硫钒共掺杂二氧化钛的掺杂比例优化
Optimization of Nitrogen, Sulfur and
Vanadium Co-Doping TiO2 with Visible-Light Photocatalytic Activity in Water
%A 万晓佳
%A 王婷
%A 董亚梅
%A 何丹农
%J Advances in Environmental Protection
%P 47-52
%@ 2164-5493
%D 2014
%I Hans Publishing
%R 10.12677/AEP.2014.41B008
%X
本文通过溶胶–凝胶法制备氮硫钒共掺杂的具有较高可见光催化活性的二氧化钛。并用均匀实验、二次多项式逐步回归分析和规划求解来使制备过程中氮、硫和钒的掺杂比例最优化。氮硫钒共掺杂可以使二氧化钛的带隙缩小至2.65~2.93 eV。在可见光(λ ≥ 400 nm)下照射3 h后,优化后的共掺杂二氧化钛催化剂对活性蓝的降解率最高可达90.40%。
Nitrogen, sulfur and vanadium co-doped TiO2 photocatalysis with high visible light activities were synthesized through sol-gel process. Uniform design, quadratic multinomial stepwise regression analysis and programming solver were performed for co-doped TiO2 catalyst preparation optimization. The N, S and V co-doping narrowed band gap energy of TiO2 photocatalysis to the range of 2.65 to 2.93 eV. The photocatalytic degradation rate of reactive blue by optimal co-doped TiO2 catalyst was 90.40% in 3 h under visible light irradiation (λ ≥ 400 nm).