Recently, considerable attention has been paid to the synthesis and research of various rare-earth （RE） doped fluoride nanomaterials because of their high refractive index and appropriate phonon energy, which have p...Recently, considerable attention has been paid to the synthesis and research of various rare-earth （RE） doped fluoride nanomaterials because of their high refractive index and appropriate phonon energy, which have potential applications in optics, optoelectronics, microelectronics, and tribology. Many methods have been utilized to synthesize the nanomaterials of RE doped fluorides with controllable sizes, shapes, and nanostructures. Comparatively, the microwave irradiation （MWI） method is simple, fast, and unique in its potential for large-scale synthesis without suffering thermal gradient effects.展开更多
Because rutile TiO_(2)has a potential application of its effective utilization of indoor illumination in photocatalytic environmental purification,effort has been devoted to synthesizing advanced rutile materials.Here...Because rutile TiO_(2)has a potential application of its effective utilization of indoor illumination in photocatalytic environmental purification,effort has been devoted to synthesizing advanced rutile materials.Herein,we report a rare rutile nanostructure,a rutile nanobundle,synthesised via a layered titanate conversion through a simple dilute HCl treatment and drying at room temperature.This rutile nanobundle shows visible light-responsive photocatalytic activity toward the oxidative decomposition of formic acid in water significantly higher than those of a commercial rutile and anatase-based benchmark TiO_(2)(P25).The rutile nanobundle,moreover,can be used as a precursor in the synthesis of a mesoporous rutile embedded with a homogeneous distribution of tiny α-Fe_(2)O_(3)nanoparticles.The α-Fe_(2)O_(3)-embedded rutile shows superior photocatalytic activity that is up to 3 times higher than a pristine rutile nanobundle and even comparable to a more costly state-of-the-art visible light-responsive photocatalyst,Au nanoparticle-supported P25.展开更多
基金Supported by the National Natural Science Foundation of China(Nos.10474096 and 50672030).
文摘Recently, considerable attention has been paid to the synthesis and research of various rare-earth （RE） doped fluoride nanomaterials because of their high refractive index and appropriate phonon energy, which have potential applications in optics, optoelectronics, microelectronics, and tribology. Many methods have been utilized to synthesize the nanomaterials of RE doped fluorides with controllable sizes, shapes, and nanostructures. Comparatively, the microwave irradiation （MWI） method is simple, fast, and unique in its potential for large-scale synthesis without suffering thermal gradient effects.
文摘Because rutile TiO_(2)has a potential application of its effective utilization of indoor illumination in photocatalytic environmental purification,effort has been devoted to synthesizing advanced rutile materials.Herein,we report a rare rutile nanostructure,a rutile nanobundle,synthesised via a layered titanate conversion through a simple dilute HCl treatment and drying at room temperature.This rutile nanobundle shows visible light-responsive photocatalytic activity toward the oxidative decomposition of formic acid in water significantly higher than those of a commercial rutile and anatase-based benchmark TiO_(2)(P25).The rutile nanobundle,moreover,can be used as a precursor in the synthesis of a mesoporous rutile embedded with a homogeneous distribution of tiny α-Fe_(2)O_(3)nanoparticles.The α-Fe_(2)O_(3)-embedded rutile shows superior photocatalytic activity that is up to 3 times higher than a pristine rutile nanobundle and even comparable to a more costly state-of-the-art visible light-responsive photocatalyst,Au nanoparticle-supported P25.
