The recombination of electron–hole pairs severely detracts from the efficiency photocatalysts. This issue could be addressed in metal–organic frameworks (MOFs) through optimization charge-transfer kinetics via rational design structures at atomic level. Herein, a pyrazolyl porphyrinic Ni-MOF (PCN-601), integrating light harvesters, active catalytic sites, and high surface areas, has been demonstrated as superior durable photocatalyst for visible-light-driven overall CO2 reduction with H2O...

Abstract Solution‐processed metal halide perovskites (MHPs) have attracted much attention for applications in light‐emitting diodes (LEDs) due to their wide color gamut, high purity, tunable emission wavelength, balanced electron/hole transportation, etc. Although MHPs are very tolerant defects, the defects solution‐processed perovskite LEDs (PeLEDs) still cause severe nonradiative recombination and device instability. Here, molecular design of additives dual passivation both lead is...

ZnS is among the superior photocatalysts for H2 evolution, whereas wide bandgap restricts its performance to only UV region. Herein, defect engineering and phase junction architecture from a controllable transformation enable achieve conflicting visible-light-driven activities evolution. On basis of first-principle density functional theory calculations, electron spin resonance photoluminescence results, etc., it initially proposed that regulated sulfur vacancies in wurtzite play key role...

Twinning CdZnS solid solution nanocrystals with rich sulfur vacancies show enhanced photocatalytic activity and stability for water splitting.

Hydrogen-bonded organic frameworks (HOFs) show great potential in many applications, but few structure-property correlations have been explored this field. In work, we report that self-assembly of a rigid and planar ligand gives rise to flat hexagonal honeycomb motifs which are extended into undulated two-dimensional (2D) layers finally generate three polycatenated HOFs with record complexity. This kind undulation is absent the 2D built from very similar nonplanar ligand, indicating slight...

Under topological guidance, the self-assembly process based on a tetratopic porphyrin synthon results in hydrogen-bonded organic framework (HOF) with predicted square layers topology (sql) but unsatisfied stability. Strikingly, simply introducing transition metal center does not change network drastically causes noticeable noncovalent interaction, orbital overlap, and molecular geometry, therefore ultimately giving rise to series of metalloporphyrinic HOFs high surface area, excellent...

Abstract Large-area light-emitting diodes (LEDs) fabricated by mass-production techniques are needed for low-cost flat-panel lighting. Nevertheless, it is still challenging to fabricate efficient large-area LEDs using organic small molecules (OLEDs), quantum dots (QLEDs), polymers (PLEDs), and recently-developed hybrid perovskites (PeLEDs) due difficulties controlling film uniformity. To that end, we report sol-gel engineering of low-temperature blade-coated methylammonium lead iodide (MAPbI...

In natural photosynthesis, the architecture of multiproteins integrates more chromophores than redox centers and simultaneously creates a well-controlled environment around active site. Herein, we demonstrate that these features can be emulated in prototype hydrogen-bonded organic framework (HOF) through simply varying proportion metalated porphyrin structure. Further studies changing metalloporphyrin content not only realizes fine tuning photosensitizer/catalyst ratio, but also alters...

CdS nanoparticles were grown <italic>in situ</italic> on atomic layer g-C₃N₄ to form nanoheterojunctions. The synergic effect between and plays a pivotal role for improving the photoactivity.

CdS has been regarded as a promising photocatalytic water-splitting visible-light photocatalyst, but low catalytic activity and photocorrosion seriously limited its practical application. Here, inspired by core–shell principles, we try to fabricate CdS@MoS2 structures utilizing unstable nanowires core multilayered MoS2 shell. Multilayered not only serves protective shell preserve also provides abundant reactive sites forms type I junction, giving rise remarkable hydrogen production...

Abstract Visible‐light‐driven H 2 production from pure water is highly promising but unfortunately inefficient. Herein, for the first time, we report realization of pure‐water‐splitting under visible‐light irradiation via single‐component CdS without any cocatalysts, employing a piezoelectric‐photocatalysis strategy. Wurtzite nanorod arrays that combine piezoelectric and photocatalytic properties was in‐situ assembled on FTO substrates to harvest both solar energy ultrasonic vibration in...

This study introduces a built-in electric field in one-component nanosheet to promote photo-generated carrier separation.

The lower CO2 utilization and poor charge conductivities have limited the application of metal–organic frameworks (MOFs) in photocatalysis. In this work, different alkylamines [ethylenediamine (EN), diethylenetriamine (DETA), triethylenetetramine (TETA)] were successfully introduced into MIL-101-Cr by postmodification created abundant chemisorption sites structures. Photocatalysis reaction showed that alkylamine modification promoted separation migration rate enhanced reduction potential...

Although many ionic metal-organic frameworks (MOFs) have been reported, little is known about how the charge of skeleton affects properties MOF materials. Herein we report chemical stability MOFs can be substantially improved through embedding electrostatic interactions in structure. A with a cationic impervious to extremely acidic, oxidative, reductive, and high strength conditions, such as 12 m HCl (301 days), aqua regia (86 H2 O2 (30 seawater which unprecedented for MOFs. DFT calculations...

Abstract The intrinsic soft lattice nature of organometal halide perovskites (OHPs) makes them very tolerant to defects and ideal candidates for solution‐processed optoelectronic devices. However, the results in low stability towards external stresses such as heating humidity, high density phonons strong electron–phonon coupling (EPC). Here, it is demonstrated that OHPs with unsaturated 4‐vinylbenzylammonium (VBA) organoammonium cations can be polymerized without damaging perovskite...

This study reports a photocatalyst based on hydrogen-bonded organic framework exhibiting high H₂ evolution rate and easy recyclability. The ordered arrangement of photosensitizers is proved to play vital role in the photocatalytic activity.

Previous studies on syntheses of metal-organic frameworks (MOFs) for photocatalytic CO2 reduction are mainly focused the exquisite control over net topology and functionality metal clusters/organic building blocks. This contribution demonstrates that rational design MOF-based photocatalyst can be further extended to hierarchical structure at micrometer scales well beyond conventional MOF molecular level. By taking advantage disparity two selective MOFs in nucleation kinetics, a core-shell...

Photocatalytic CO2 reduction is one of the most cost-effective and environmentally friendly techniques converting into high-value compounds and/or fuels. However, performance current photocatalytic catalysts less than satisfactory for practical applications. Here, we synthesized a heterogeneous structure by integrating Cu2O porphyrin hydrogen-bonded organic framework (PFC-45), which was then fabricated thin-film catalyst on carbolic paper (CP) using facile electrophoretic deposition...

Teethlike homojunctions BiOCl (001) nanosheets with tunable photoresponse were constructed by selective etching triethanolamine and allowed fast charge separation across the interfaces to facilitate photocatalysis. The unique microstructure exhibits a superior photocatalytic activity that can be ascribed combined interaction of high UV/vis light harvest, photogenerated efficiency, interfacial charge-transfer rate based on homogeneous topotactic structure. We believe creation this new model...

A sandwich-structured NaYF₄:Yb³⁺, Er³⁺/Au/CdS architecture delivers enhanced photocatalytic bio-ethanol reforming activity under low-density NIR light irradiation.

Unique grain boundary-rich organic–inorganic hybrid D-ZnS(en)_0.5 nanosheets exhibit superior activity for photocatalytic H₂ evolution under visible light irradiation.

Stability is becoming a main issue for perovskite light-emitting diodes (PeLEDs), as their external quantum efficiency (EQE) has been boosted to above 20%. An all-inorganic perovskite, cesium lead iodide (CsPbI3), better stability than organic-inorganic hybrid perovskites but suffers from transition yellow δ-CsPbI3 phase at room temperature. Herein, we report stabilization of the α-CsPbI3 by in situ formation nanocrystals (NCs). By incorporation proper ratio bulky organoammonium halides,...