title: Bamboo leaf-assisted formation of carbon/nitrogen co-doped anatase TiO2 modified with silver and graphitic carbon nitride: novel and green synthesis and cooperative photocatalytic activity.
abstract: We report a novel synthesis approach employing bamboo leaves as sources of both the C/N dopant and reductant to the formation of C/N co-doped TiO2 modified with Ag and g-C3N4 (Ag/CN-TiO2@g-C3N4). In this case, the ternary composite has a hierarchical structure and a large surface area, which increases the contact area of reactants. Degradation of rhodamine B (RhB) and hydrogen generation were carried out to evaluate the photocatalytic activity of as-prepared samples under visible light irradiation. It is found that with respect to single and binary catalysts, the Ag/CN-TiO2@g-C3N4 ternary composite shows the highest photocatalytic activity (degradation of RhB, H2 evolution from water splitting) as a result of the fast generation, separation and transportation of the photogenerated carriers, which was evidenced by photoluminescence measurements and free radical/hole scavenging experiments. At last, a possible photocatalytic mechanism under visible light irradiation was proposed. The novel and green synergistic approach presented here could provide a facile yet effective method for designing other visible light active non-metal co-doped TiO2 based photocatalysts with enhanced activity and high chemical stability.
authors.affiliation: School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, P.R. China. xiejm391@sohu.com ntjiangzf@sina.com.
authors.forename: Zhifeng
authors.initials: Z
authors.lastname: Jiang
authors.forename: Dong
authors.initials: D
authors.lastname: Liu
authors.forename: Deli
authors.initials: D
authors.lastname: Jiang
authors.forename: Wei
authors.initials: W
authors.lastname: Wei
authors.forename: Kun
authors.initials: K
authors.lastname: Qian
authors.forename: Min
authors.initials: M
authors.lastname: Chen
authors.forename: Jimin
authors.initials: J
authors.lastname: Xie
mesh_terms: D002244:Carbon / Q000737:chemistry; D002384:Catalysis; D005609:Free Radicals / Q000737:chemistry; D055772:Green Chemistry Technology; D006859:Hydrogen / Q000737:chemistry; D008027:Light; D053758:Nanoparticles / Q000737:chemistry; D009570:Nitriles / Q000737:chemistry*; D009584:Nitrogen / Q000737:chemistry; D018515:Plant Leaves / Q000737:chemistry; D006109:Poaceae / Q000737:chemistry*; D012235:Rhodamines / Q000737:chemistry / Q000378:metabolism; D012834:Silver / Q000737:chemistry*; D013816:Thermodynamics; D014025:Titanium / Q000737:chemistry*; D014867:Water / Q000737:chemistry
chemical_list: D005609:Free Radicals; D009570:Nitriles; D012235:Rhodamines; D014867:Water; C009495:titanium dioxide; D012834:Silver; C011206:cyanogen; D002244:Carbon; D006859:Hydrogen; D014025:Titanium; C029773:rhodamine B; D009584:Nitrogen