Self-template impregnated silver nanoparticles in coordination polymer gel: photocatalytic CO reduction, CO fixation, and antibacterial activity.

CO fixation and light-assisted conversion of CO in the presence of water into fuels and feedstocks are clean and sustainable techniques to alleviate the energy crisis and global climate change. In this regard, herein, a waterborne multifunctional metal-organic coordination polymer gel (Ag@GMP) was prepared from silver nitrate and guanosine 5'-monophosphate. Electron microscopy exhibits that Ag@GMP has a flower-like structure, which is composed of vertically grown sheets, and corresponding high magnification images display the presence of silver nanoparticles on the vertically grown sheets.

Fundamentals of Flexoelectricity, Materials and Emerging Opportunities Toward Strain-Driven Nanocatalysts.

Flexoelectricity, an intrinsic property observed in materials under nonuniform deformation, entails a coupling between polarization and strain gradients. Recent catalyst advancements have reignited interest in flexoelectricity, particularly at the nanoscale, where pronounced strain gradients promote robust flexoelectric effects. This paper comprehensively examines flexoelectricity, encompassing methodologies for precise measurement, elucidating its distinctions from related phenomena, and exploring its potential applications in augmenting catalytic properties.

Photocatalytic Synergy Between α-BiO Nanosphere and Spindle MIL-88A for Gas-Phase CO Reduction.

Visible light-active photocatalysts play a crucial role in gas-phase photocatalytic CO reduction, offering significant potential for sustainable energy conversion. Herein, we present the synthesis of spindle-shaped Iron (Fe)-based metal-organic framework (MOF) MIL-88 A, coupled with distinct α-BiO nanospheres. The α-BiO/MIL88A heterostructure is formed by interacting opposite surface charges, enhancing visible-light absorption and efficient interfacial charge-carrier separation.

Photoinduced CO and N reductions on plasmonically enabled gallium oxide.

Ag-containing ZnO/ β-GaO semiconductor, which exhibit reduced bandgap, increased light absorption, and hydrophilicity, have been found to be useful for photocatalytic CO reduction and N fixation by water. The charge-separation is facilitated by the new interfaces and inherent vacancies. The Ag@GaZn demonstrated the highest photocurrent response, about 20- and 2.

Enriched oxygen vacancies of CuO/SnS/SnO heterostructure for enhanced photocatalytic reduction of CO by water and nitrogen fixation.

When two semiconductors are electronically coupled, their photocatalytic performance can be greatly enhanced. Herein, we formed a heterostructure between CuO and SnS/SnO nanocomposite using a solvothermal reactor, which reduced CO by HO at ambient conditions to produce CO, H and CH. With inclusion of CuO, apparent quantum yield, a measure of photoactivity, has increased from 7.