In situ synthesis of porous ZnO-embedded Zn_1−xCd_xS/CdS heterostructures for enhanced photocatalytic activity

Abstract

The in situ embedding of a ZnO cocatalyst on the fine-grained Zn1−xCdxS/CdS heterostructure dramatically improves its photocatalytic activity even in the absence of hole scavengers and makes the utilization of methanol solution as the sacrificial agent for sulfide semiconductors possible.

Molecular oxygen activation enhancement by BiOBr0.5I0.5/BiOI utilizing the synergistic effect of solid solution and heterojunctions for photocatalytic NO removal

“…According to our previous work, heterojunction and solid solution structures efficiently improve molecular oxygen activation carrier and exciton photocatalytic process [20,21]. In order to confirm that the synergistic effect of solid solution and heterojunction of BiOBr0.5I0.5/BiOI leads to molecular oxygen activation enhancement, we verified the carrier and exciton photocatalytic processes separately.…”

“…For example, the solid solution BiOXxY1-x (X and Y are the different halogens) and the heterojunction BiOX/BiOY (X and Y are the different halogen) were most commonly synthesized and researched [17][18][19]. However, the synergistic effect of solid solution and heterojunctions is usually applied to the photocatalytic production of hydrogen, using sulphided catalysts such as Zn1-xCdxS/CdS [20,21] and Fe1-xPtx/ZnCdS [22]. It is rarely applied for photocatalytic NO removal.…”

A Review on Recent Progress in the Integrated Green Hydrogen Production Processes

“…Other CdS-contained compounds such as CdS-TiO 2 , CdS-Bi 2 WO 6 , CdS-ZnO, CdS-g-C 3 N 4 , CdS-ZnWO 4 , (CdS + ZnS)/Fe 2 O 3 , etc. have also improved hydrogen production rate [162][163][164][165].…”

Metal–organic framework-derived porous carbon-mediated ZnO–nano-ZnO core–shell structure with excellent photocatalytic activity

“…38 Compared with the common post-synthesis method, this method can effectively control the growth of MOF on the semiconductor surface. 42 At the same time, ZnO, a low-cost and environment-friendly semiconductor material, 43,44 has been proven to combine effectively with porous carbon materials derived from MOF. 45,46 The MOF-derived ZnO/C hybrid prepared by Plank et al greatly improved the dye adsorption capacity and photocatalytic performance.…”