3D ZnO hollow spheres-dispersed CsPbBr3 quantum dots S-scheme heterojunctions for high-efficient CO2 photoreduction

S-Scheme Heterojunction Photocatalysts for CO2 Reduction

“…Heterojunctions combining 0D with 3D nanomaterials can improve not only the dispersion of 0D materials, but also the ability to capture CO 2 , as well as the presence of more active sites of 0D material for the reaction, thus improving the photocatalytic ability [104]. Zhang et al [105] prepared an S-scheme heterojunction (Cs 3 Bi 2 Br 9 @V O -In 2 O 3 ) via embedding Cs 3 Bi 2 Br 9 in mesoporous In 2 O 3 (Figure 8a).…”

“…The close interfacial contacts and strong interactions brought about by the heterostructure facilitated an effective electron transfer between the interfaces. Wang et al [104] prepared 0D/3D CsPbBr 3 /ZnO S-scheme heterojunction hollow spheres using a simple self-assembly method (Figure 8d). The presence of the 3D structure improves the stability of the CsPbBr 3 , which effectively enhances the capture capacity of CO 2 .…”

Synthesis and Properties of Size-Adjustable CsPbBr3 Nanosheets for Potential Photocatalysis

“…Additionally, their band gap can be adjusted by changing their composition and structure, enabling them to absorb light of various wavelengths. This also indicates that CsPbBr 3 nanocrystals are promising candidates with high photocatalytic potential [ 14 , 15 , 16 , 17 ].…”

Embedding CsPbBr3 Quantum Dots into an In2O3 Nanotube for Selective Photocatalytic CO2 Reduction to Hydrocarbon Fuels

“…As greenhouse gas emissions and environmental pollution are mainly caused by the consumption of fossil fuels, solar-derived CO 2 reduction acts as an appealing approach to mitigate the fossil fuel problem and reduce the greenhouse effect. − To maximize sunlight utilization, numerous organic and inorganic semiconductor materials have been developed to enhance the photocatalytic CO 2 reduction reaction (CO 2 RR). − Recently, inorganic CsPbBr 3 perovskite quantum dots (QDs) are considered as promising photocatalysts for the CO 2 RR attributed to their exceptional photoelectric properties, tunable band gap, and superior light-harvesting properties. − However, the limitation of rapid charge recombination and insufficient stability make CsPbBr 3 QDs suffer from low CO 2 conversion efficiency. − To address the issue of stability, anchoring CsPbBr 3 QDs on a protective matrix to construct a heterojunction is an effective strategy to separate the photoinduced charges, in which CsPbBr 3 QDs are protected by these excellent matrices, , and adsorbed CO 2 prefers to be converted by strong surface redox capacity.…”

“…9−11 However, the limitation of rapid charge recombination and insufficient stability make CsPbBr 3 QDs suffer from low CO 2 conversion efficiency. 12−15 To address the issue of stability, anchoring CsPbBr 3 QDs on a protective matrix to construct a heterojunction is an effective strategy to separate the photoinduced charges, in which CsPbBr 3 QDs are protected by these excellent matrices, 16,17 and adsorbed CO 2 prefers to be converted by strong surface redox capacity.…”