Gold clusters loaded on various supports have been widely used in the fields of energy and biology. However, poor photostability Au support interfaces under prolonged illumination usually results loss catalytic performance. Covalent organic frameworks (COFs) with periodic ultrasmall pore structures are ideal for dispersing stabilizing clusters, although it is difficult to encapsulate pores. In this study, a two-dimensional (2D) COF modified thiol chains its pores was prepared. With -SH...

Abstract It is highly desirable to develop durable photocatalysts for efficiently boosting water splitting, but it challenging CdS realize the expected result without using any hole sacrificial agents. Herein, improved photocatalytic hydrogen evolution and enhanced stability are simultaneously realized in absence of agents by introducing Zinc 5‐, 10‐, 15‐, 20‐meso‐tetra (4‐hydrazidephenyl) porphyrin (ZnTHPP) onto nanosheets (CdS NSs). In this system (ZnTHPP/CdS NSs), a novel transfer channel...

Abstract Efficient charge separation and sufficiently exposed active sites are important for light‐driving Fenton catalysts. 0D/2D hybrids, especially quantum dots (QDs)/nanosheets (NSs), offer a better opportunity improving photo‐Fenton activity due to their high mobility more catalytic sites, which is highly desirable but remains great challenge. Herein, 0D hematite dots/2D ultrathin g‐C 3 N 4 nanosheets hybrid (Fe 2 O QDs/g‐C NS) developed via facile chemical reaction subsequent...

Surface recombination at the photoanode/electrolyte junction seriously impedes photoelectrochemical (PEC) performance. Through coating of photoanodes with oxygen evolution catalysts, photocurrent can be enhanced; however, current systems for water splitting still suffer from high recombination. We describe herein a novel charge transfer system designed BiVO4 as prototype. In this system, porphyrins act an interfacial-charge-transfer mediator, like volleyball setter, to efficiently suppress...

Abstract Coating photoanodes with transition‐metal hydroxides (TMH) is a promising approach for improving photoelectrochemical (PEC) water oxidation. However, the present system still suffers from high charge recombination and sluggish surface reactions. Herein, effective separation achieved at same time as boosting catalytic reaction PEC splitting through decoration of plasmon metal (Ag) in semiconductor/TMH coupling system. The kinetic behavior TMH/electrolyte interfaces systematically...

Abstract Semiconductor/co‐catalyst coupling is considered as a promising strategy to enhance the photoelectrochemical (PEC) conversion efficiency. Unfortunately, this model system faced with serious interface recombination problem, which limits further improvement of PEC performances. Here, FeNiOOH co‐catalyst abundant oxygen vacancies on BiVO 4 fabricated through simple and economical NaBH reduction accelerate hole transfer achieve efficient electron–hole pair separation. The photocurrent...

We report a “one stone, three birds” strategy for efficiently suppressing the electron–hole recombination occurring at SC/TMH interface. After acid treatment, optimized BV-HA/FeNi(OH) X photoanodes showed enhanced photocurrent density and excellent photostability.

Abstract Depositing a transition‐metal hydroxide (TMH) layer on photoanode has been demonstrated to enhance photoelectrochemical (PEC) water oxidation. However, the controversial understanding for improvement origin remains key challenge unlock PEC performance. Herein, by taking BiVO 4 /iron‐nickel (BVO/F x N 4− ‐H) as prototype, we decoupled process into two processes including charge transfer and surface catalytic reaction. The kinetic information at BVO/F ‐H F ‐H/electrolyte interfaces...

Recombination of photogenerated electron-hole pairs is extremely limited in the practical application photocatalysis toward solving energy crisis and environmental pollution. A rational design cascade system (i.e., rGO/Bi2 WO6 /Au, ternary composites) with highly efficient charge carrier separation successfully constructed. As expected, integrated (rGO/Bi2 /Au) shows enhanced photocatalytic activity compared to bare Bi2 other binary composites, it proved multiple electron transfer (MET)...

Photoelectrochemical (PEC) water splitting technology is a promising strategy toward producing sustainable hydrogen fuel. However, it an essential bottleneck to reduce severe charge recombination for the improvement of PEC performance. Construction heterojunction systems, such as Z-scheme and type II heterojunctions, could efficiently boost separation, whereas mechanism separation still ambiguous. We describe herein transfer system designed with Bi2WO6/Bi2S3 (BWO/BS) prototype. In this...

Abstract Gold clusters loaded on various supports have been widely used in the fields of energy and biology. However, poor photostability Au support interfaces under prolonged illumination usually results loss catalytic performance. Covalent organic frameworks (COFs) with periodic ultrasmall pore structures are ideal for dispersing stabilizing clusters, although it is difficult to encapsulate pores. In this study, a two‐dimensional (2D) COF modified thiol chains its pores was prepared. With...

Abstract Solar‐driven photoelectrochemical (PEC) water splitting provides a highly promising solution for converting solar energy to chemical fuels. The semiconductor (SC) based photoanode often exhibits enhanced PEC performance when coated with transition metal compound (TMC) overlayer that is merely regarded as cocatalyst the oxygen evolution reaction (OER). However, origin of this improvement and distinct roles TMCs remain controversial topics. This mainly due lack advanced...

Abstract The loading of transition‐metal oxyhydroxide (TMOH) on semiconductor (SC) has been recognized as a promising approach for promoting photoelectrochemical (PEC) water splitting. Nonetheless, major challenges such substantial carrier recombination and slow surface oxidation continue to hinder the achievement desirable PEC performance. This study proposes feasible ligand engineering strategy simultaneously boost charge separation catalytic kinetics through coordinating 2‐methylimidazole...

Abstract The coupling of semiconductor (SC) and transition metal oxyhydroxide (TMOOH) is a promising approach for solar fuel production. However, the inevitable interfacial charge recombination sluggish oxygen evolution reactions severely hinder application photoelectrochemical (PEC) device. This study demonstrates an innovative polarization strategy that simultaneously enhances both long‐range transfer surface catalytic reaction dynamics through rational construction CoO x /MnO...

A one-stone-two-birds strategy was developed to engineer the SC/TMH/electrolyte interface by introducing high crystallinity Fe(OH) X -H, and optimized BV/Fe(OH) -H/FeNi(OH) exhibited a noteworthy photocurrent density of 5.34 mA cm −2 .

Inspired by the spatial elaborate architecture and kinetics characteristic of nature photosynthesis, a nanohybrid Au@THPP/CNTs with columnar-like shape has been prepared combination gold-4-hydroxyphenyl porphyrin core–shell structure (Au@THPP) vertically aligned carbon nanotubes (CNTs) grown on transparent conducting substrate. A simplified model to uncover partial electron transfer (ET) photosystem II (PSII) using chemical approach set up. The UV–vis/scanning electrochemical microscopy...