Immobilizing perovskite CsPbBr3 nanocrystals on Black phosphorus nanosheets for boosting charge separation and photocatalytic CO2 reduction

The development, application, and performance of black phosphorus in energy storage and conversion

“…Considering the electronegativity difference between Pb and P elements, the generated directional electron transfer channel is reasonable (Figure 12h). 130 Compared to pristine CsPbBr3, the introduction of BP significantly promoted the photocatalytic performance, exhibiting conversion rates of CO2 to CO (44.7 μmol g -1 h -1 ) and CH4 (10.7 μmol g -1 h -1 ). Although BP is a promising candidate for photocatalytic carbon dioxide reduction, its limited stability remarkably impedes the application.…”

“…With the help of direct tip sonication under bath sonication, covalent Pb-P and Br-P bond between CsPbBr3 and BP was clearly identified. 130 In addition, Please do not adjust margins Please do not adjust margins charge density difference analysis was conducted to elucidate the electron transfer properties, which showed that the electrons were clearly accumulated on BP due to their transfer from Pb atoms in CsPbBr3. Considering the electronegativity difference between Pb and P elements, the generated directional electron transfer channel is reasonable (Figure 12h).…”

Glycine‐Functionalized CsPbBr3 Nanocrystals for Efficient Visible‐Light Photocatalysis of CO2 Reduction

“…In the field of the photocatalysis of CO 2 conversion with MHP NCs‐based photocatalysts, continuous efforts have focused on surface/interface modification [16, 18–24] and heterojunction engineering [25–32] to increase the active sites and improve the separation efficiency of photogenerated carriers, achieving a great improvement in photocatalytic performance over the past few years. However, the long alkyl‐chain capping ligands in conventional MHP NCs will be unfavorable for the CO 2 adsorption and hinder the efficient carrier transport in MHP NCs‐based heterojunctions, [26, 27] which has not yet been recognized extensively.…”

“…[9] TheseM HP NCs have attracted ever-increasing attention recently in the photocatalytic field, [10][11][12][13] for applications such as photocatalysis of H 2 evolution, [14] photodegradation of organic pollutants, [15] photocatalysis of CO 2 reduction, [16] and photocatalytic organic synthesis. [17] In the field of the photocatalysiso fC O 2 conversion with MHP NCs-based photocatalysts, continuouse ffortsh ave focused on surface/interface modification [16,[18][19][20][21][22][23][24] and heterojunction engineering [25][26][27][28][29][30][31][32] to increase the active sites and improve the separatione fficiencyo fp hotogenerated carriers,a chieving ag reat improvementi np hotocatalytic performanceo ver the past few years. However,t he long alkyl-chain capping ligands in conventional MHP NCs will be unfavorable for the CO 2 adsorptiona nd hinder the efficient carriert ransport in MHP NCsbasedh eterojunctions, [26,27] which has not yet been recognized extensively.C onsidering that capping ligandsa re indispensable for the preparation of MHP NCs with good stabilitya nd low surface defect density, the employment of small functional organic molecules as capping ligandsc ould be an ideal solution to maintain colloidals tability andi mprove the photocatalytic CO 2 activity of MHP NCs-based photocatalysts.…”

Investigation of Water‐Stable Perovskite DMASnIxBr3−x for Photoenzyme Catalysis in Aqueous Solution

“…[19,20] Recently, perovskite materials indeed exhibited promising applications in conventional photocatalysis, such as hydrogen evolution, CO 2 reduction, dye degradation, as well as organic synthesis. [21][22][23][24][25][26][27][28][29][30][31][32][33][34] However, the perovskitebased photocatalytic processes were usually conducted in the oversaturated hydroiodic acid solution or alcohol-based systems. [21,22,25,31] The extreme sensitivity to water could easily render the perovskite materials such as MAPbI 3 degrade into PbI 2 .…”