Iron-doped titania nanoparticles exhibit a higher photocatalytic activity than pure TiO_2 for the degradation of nitrite. The optimum Fe-doped content in terms of activity is approximately 0.5%. The increase in photoa...Iron-doped titania nanoparticles exhibit a higher photocatalytic activity than pure TiO_2 for the degradation of nitrite. The optimum Fe-doped content in terms of activity is approximately 0.5%. The increase in photoactivity is probably due to the higher adsorption and the inhibition of electron-hole recombination. The photocatalytic oxidation reaction of nitrite over the Fe-doped TiO_2 catalyst follows zero-order kinetics, which is different from that over pure TiO_2. The reaction rate decreases linearly with the increase of the pH of the solution.展开更多
The compound 1,3,5-tris(benzimidazol-1-ylmethyl)-2,4,6-trimethylbenzene, crystallizes in the monoclinic system, space group P21/c, with a = 17.571(4), b = 10.860(2), c = 14.126(3) ?; ( = 92.89(3)(, V = 2692(1) ?3, Dc ...The compound 1,3,5-tris(benzimidazol-1-ylmethyl)-2,4,6-trimethylbenzene, crystallizes in the monoclinic system, space group P21/c, with a = 17.571(4), b = 10.860(2), c = 14.126(3) ?; ( = 92.89(3)(, V = 2692(1) ?3, Dc = 1.260 g/cm3, Z = 4, C33H30N6, Mr = 510.63, ((MoK() = 0.077mm-1, F (000) = 1080. The structure was refined to R = 0.0592, wR = 0.1379 for 1492 (I(2((I)) reflections. The title molecule has cis, trans, trans-conformation about the central phenyl ring. The screw-related molecules are connected by hydrogen bonds C-H(((N (x, -0.5-y, 0.5+z) and form the infinite helical chains. The polar molecular chains are antiparallelly stacked through edge-to-face C-H…πinteractions.展开更多
基金the National Natural Science Foundation of China.
文摘Iron-doped titania nanoparticles exhibit a higher photocatalytic activity than pure TiO_2 for the degradation of nitrite. The optimum Fe-doped content in terms of activity is approximately 0.5%. The increase in photoactivity is probably due to the higher adsorption and the inhibition of electron-hole recombination. The photocatalytic oxidation reaction of nitrite over the Fe-doped TiO_2 catalyst follows zero-order kinetics, which is different from that over pure TiO_2. The reaction rate decreases linearly with the increase of the pH of the solution.
基金the National Natural Science Foundation of China and Natural Science Foundation of Guangdong Province.
文摘The compound 1,3,5-tris(benzimidazol-1-ylmethyl)-2,4,6-trimethylbenzene, crystallizes in the monoclinic system, space group P21/c, with a = 17.571(4), b = 10.860(2), c = 14.126(3) ?; ( = 92.89(3)(, V = 2692(1) ?3, Dc = 1.260 g/cm3, Z = 4, C33H30N6, Mr = 510.63, ((MoK() = 0.077mm-1, F (000) = 1080. The structure was refined to R = 0.0592, wR = 0.1379 for 1492 (I(2((I)) reflections. The title molecule has cis, trans, trans-conformation about the central phenyl ring. The screw-related molecules are connected by hydrogen bonds C-H(((N (x, -0.5-y, 0.5+z) and form the infinite helical chains. The polar molecular chains are antiparallelly stacked through edge-to-face C-H…πinteractions.
