Cu/TEA-doped TiO2 nanoparticles were prepared by the sol-gel process. Titanium （IV） isoproxide, copper （II） nitrate trihydrate and triethanolamine were used as precursors and calcined at a temperature of 400℃ for...Cu/TEA-doped TiO2 nanoparticles were prepared by the sol-gel process. Titanium （IV） isoproxide, copper （II） nitrate trihydrate and triethanolamine were used as precursors and calcined at a temperature of 400℃ for 2 h with a heating rate of 10℃/min to produce powders. Different interstitial amounts of TEA were added in the range of 0 mol% to 15 mol% of TiO2. The X-ray diffractrometer patterns show the TiO2 nanocomposites have a high anatase phase. It was also apparent that doped TEA has an effect on the crystallite size of TiO2 composite nanoparticles. The morphology of the composite powders was characterized by scanning electron microscope. The photocatalytic activity of Cu/TEA-doped TiO2 nanoparticles was evaluated through the degradation of methylene blue under UV irradiation. The results showed that 1 mol% TEA of TiO2 nanocomposites exhibited high photocatalytic activity and a small crystallite size.展开更多
文摘Cu/TEA-doped TiO2 nanoparticles were prepared by the sol-gel process. Titanium （IV） isoproxide, copper （II） nitrate trihydrate and triethanolamine were used as precursors and calcined at a temperature of 400℃ for 2 h with a heating rate of 10℃/min to produce powders. Different interstitial amounts of TEA were added in the range of 0 mol% to 15 mol% of TiO2. The X-ray diffractrometer patterns show the TiO2 nanocomposites have a high anatase phase. It was also apparent that doped TEA has an effect on the crystallite size of TiO2 composite nanoparticles. The morphology of the composite powders was characterized by scanning electron microscope. The photocatalytic activity of Cu/TEA-doped TiO2 nanoparticles was evaluated through the degradation of methylene blue under UV irradiation. The results showed that 1 mol% TEA of TiO2 nanocomposites exhibited high photocatalytic activity and a small crystallite size.
