In-situ growth of ultrafine ZnO on g-C3N4 layer for highly active and selective CO2 photoreduction to CH4 under visible light

Enhanced photocatalytic performance of ZnO/AgCl composites prepared by high-energy mechanical ball milling

“…The lattice spacings of 0.28 and 0.26 nm can be attributed to the (100) and (002) planes, respectively, of ZnO (JCPDS No. 36-1451), 45,46 and the lattice spacings of 0.196 and 0.16 nm can be attributed to the (220) and ( 222) planes of AgCl (JCPDS No. 31-1238), 47 respectively.…”

In situ growth of Ag2S quantum dots on SnS2 nanosheets with enhanced charge separation efficiency and CO2 reduction performance

“…S9,† the SnS 2 -160 sample excited by 373 nm light showed intensive PL emission at 543 nm due to its rapid charge recombination. 57 However, parallel to the increasing hydrothermal temperature, SnS 2 -200 noticeably exhibited a PL quenching tendency because of its lower charge recombination capacity. Femtosecond time-resolved fluorescence spectra (TRFS) were further measured to investigate charge carriers dynamics, and TRFS decay traces were fitted by using the bi-exponential fitting model ( I ( t ) = A 1 exp(− t / τ 1 ) + A 2 exp(− t / τ 2 ), where A 1 and A 2 are the corresponding amplitudes, and τ 1 and τ 2 are the slow and fast decay components originating from the bound and free exciton states, respectively).…”

“…23,44 The increased lifetime of charge carriers, along with the enhanced hydrothermal self-exfoliation process of SnS 2 , is ascribable to the suppressed recombination of charge carriers by relaxing from SnS 2 NS internal electrons to the surface. 29,57…”

Review and Perspective on Rational Design and Interface Engineering of g-C3N4/ZnO: From Type-II to Step-Scheme Heterojunctions for Photocatalytic Applications

“…FTIR indicates the variation in the −C–N/C=N– and −Zn–O– stretching modes, which conclude the changes associated with the bonding environment in the composite. ,,, The formation of −N=C–O–Zn– states suggests the strong chemical interactions between GCN and ZnO . Depending on the preparation methods, the composite surface area may be larger , or lower with respect to ZnO , or GCN. , Some reports also suggest that the composite surface area will be similar to that of GCN owing to the low load of ZnO . The GCN precursors also influence the resultant specific surface of the composite: the specific surface area of the composite was highest with respect to urea followed by thiourea and DCDA .…”