A plasmonic photocatalyst of Ag/AgBr nanoparticles coupled with g-C3N4 with enhanced visible-light photocatalytic ability

Novel magnetically separable g-C3N4/AgBr/Fe3O4 nanocomposites as visible-light-driven photocatalysts with highly enhanced activities

“…There are two distinct well-defined diffraction peaks at 13.631 and 27.671 for g-C 3 N 4 , which could be ascribed to (100) and (002) diffraction planes (JCPDS 87-1526) [27]. In the case of g-C 3 N 4 /AgBr (4:1) nanocomposite, the diffraction peaks are clearly indexed to g-C 3 N 4 and AgBr counterparts [28]. The XRD patterns for g-C 3 N 4 /AgBr/Fe 3 O 4 nanocomposites are composed of the diffraction peaks corresponding to g-C 3 N 4 , AgBr and Fe 3 O 4 .…”

Construction of a 2D Graphene‐Like MoS2/C3N4 Heterojunction with Enhanced Visible‐Light Photocatalytic Activity and Photoelectrochemical Activity

“…[46] Figure 2B shows the high-resolution N1ss pectrum of GLMoS 2 /C 3 N 4 .T he asymmetricalN 1s peak could be fitted by three peaks at 398.6, 399.8, and 401.0 eV,s uggesting three types of Na toms, C=NÀC, NÀ(C) 3 ,C ÀNÀH, in the sample. [10,22,44] Figure 2C shows the high-resolutionM o3ds pectrum of the sample. Twop eaks at 229.0 and 232.1 eV,c orresponding to the binding energieso fM o3d5/2 and Mo 3d3/2, indicated the dominantexistence of Mo 4 + .…”

“…The band gap of g-C 3 N 4 is 2.70 eV [10] and it hasastructure similar to that of layered graphite. This prompted us to turn it into a2 Dn anomaterial, that is, graphene-likeC 3 N 4 (GL-C 3 N 4 ).…”

“…[8,9] As an ovel polymeric photocatalyst, g-C 3 N 4 has high thermala nd chemical stabilities, outstanding mechanical, optical, electronic, and catalytic properties, and is amenable to photocatalytic hydrogen production using solar energy. [10] To date, severalm ethods have been reported for the modificationo fc arbon nitride to obtainb etter structures, such as monolayer carbon nitride, [11] nanotube-type carbon nitride, [12] carbon nitride quantum dots, [13,14] and mesoporousc arbon nitride. [15] Meanwhile, two-dimensional( 2D) nanomaterials defined as consisting of single or few atomic layers, have attracted ever more attention due to their unique electronic and opticalp roperties, [16] and have generated huge interestinamultitude of areas, such as catalysis, [17,18] hydrogen evolution, [7,18] chemical and biologicals ensors, [19,20] electronics, [21,22] energy storage, [23] and supercapacitors.…”

Adsorption and visible light-driven photocatalytic degradation of Rhodamine B in aqueous solutions by Ag@AgBr/SBA-15

“…This phenomenon was quite normal since when pH was low, the surface of the photocatalyst was positively charged and could not provide hydroxyl radicals. With increasing pH value, more hydroxyl ions adsorbed on 50Ag@AgBr/SBA-15 surface could further produce large amounts of hydroxyl radicals to attack RhB molecules [54,55]. At pH 11, structure of SBA-15 may be destructed for the strong alkaline medium, which suppressed AgBr dispersion on the support and thus resulted in poor RhB photocatalytic degradation.…”