Transparent conductive graphene films are fabricated by the transfer printing of graphene aqueous dispersion followed by hydrohalic acids and thermal reduction. Results indicate that the graphene film reduced by hydro...Transparent conductive graphene films are fabricated by the transfer printing of graphene aqueous dispersion followed by hydrohalic acids and thermal reduction. Results indicate that the graphene film reduced by hydroiodic acid （HI） reduction combined with thermal treatment shows a higher electrical conductivity than that reduced only by thermal treatment at the same transparency. A film with a sheet resistance of - 2400 D./sq at a transparency over 72% is obtained at a typical wavelength of 550 nm.展开更多
Bismuth-based compounds have been regarded as an important class of visible-light photocatalysts due to their special electronic structures. In this paper, iodide ions are introduced to modify bismuth-based compound,...Bismuth-based compounds have been regarded as an important class of visible-light photocatalysts due to their special electronic structures. In this paper, iodide ions are introduced to modify bismuth-based compound, Bi（24）O（31）Br（10）, forming a Bi（24）O（31）Br（10）/BiOI heterojunction structure. A significant enhancement of photocatalytic activity compared to the parent compounds is observed in de-coloration of rhodamine B（Rh.B） solution. The improved photocatalytic property of Bi（24）O（31）Br（10）/BiOI heterojunction is ascribed to the unique electronic structure consisting of complementary band structures of BiOI and Bi（24）O（31）Br（10）.Iodide ions are regarded as an effective reagent to construct bismuth-based photocatalytic heterojunctions with improved photocatalytic activity.展开更多
基金Project supported by the National Key Basic Research Program of China (Grant Nos.2012CB626800 and 2010CB934700)the National Natural Science Foundation of China (Grant Nos.51073115,51003072,51173127,and 51273144)
文摘Transparent conductive graphene films are fabricated by the transfer printing of graphene aqueous dispersion followed by hydrohalic acids and thermal reduction. Results indicate that the graphene film reduced by hydroiodic acid （HI） reduction combined with thermal treatment shows a higher electrical conductivity than that reduced only by thermal treatment at the same transparency. A film with a sheet resistance of - 2400 D./sq at a transparency over 72% is obtained at a typical wavelength of 550 nm.
基金supported by the National Natural Science Foundation of China (Grant Nos. 51072012 and 51272015)partially supported by the Ph.D. Research Startup Foundation of Henan Normal University (No. 5101029170290)the Australian Research Council through a Discovery Project (DP140102581)
文摘Bismuth-based compounds have been regarded as an important class of visible-light photocatalysts due to their special electronic structures. In this paper, iodide ions are introduced to modify bismuth-based compound, Bi（24）O（31）Br（10）, forming a Bi（24）O（31）Br（10）/BiOI heterojunction structure. A significant enhancement of photocatalytic activity compared to the parent compounds is observed in de-coloration of rhodamine B（Rh.B） solution. The improved photocatalytic property of Bi（24）O（31）Br（10）/BiOI heterojunction is ascribed to the unique electronic structure consisting of complementary band structures of BiOI and Bi（24）O（31）Br（10）.Iodide ions are regarded as an effective reagent to construct bismuth-based photocatalytic heterojunctions with improved photocatalytic activity.
