Narrow Bandgap Perovskite Enabled by Heterovalent Co-Doping for Visible-NIR Light Photocatalytic CO Reduction.

Metal halide perovskites have garnered significant attention due to their vast potential in various optoelectronic applications. While their tunable bandgap properties allow for light absorption across the ultraviolet and much of the visible spectrum, the coverage in the near-infrared (NIR) region remains limited. Here, we demonstrate a heterovalent co-doping method for synthesizing Ag and Bi doped CsSnBr crystals with absorption edge up to 1300 nm, making it one of the narrowest bandgap perovskite materials.

Immunoprotective effect of recombinant Lactobacillus plantarum expressing largemouth bass virus MCP on largemouth bass.

Largemouth bass virus (LMBV) is an infectious pathogen that causes high mortality rates in largemouth bass, and outbreaks of this virus can significantly harm the aquaculture industry. Currently, no vaccine has been developed that can effectively prevent the transmission of LMBV. In this study, we constructed a recombinant Lactobacillus plantarum (L.

ZIF-Induced d-Band Modification in a Bimetallic Nanocatalyst: Achieving Over 44 % Efficiency in the Ambient Nitrogen Reduction Reaction.

The electrochemical nitrogen reduction reaction (NRR) offers a sustainable solution towards ammonia production but suffers poor reaction performance owing to preferential catalyst-H formation and the consequential hydrogen evolution reaction (HER). Now, the Pt/Au electrocatalyst d-band structure is electronically modified using zeolitic imidazole framework (ZIF) to achieve a Faradaic efficiency (FE) of >44 % with high ammonia yield rate of >161 μg mg  h under ambient conditions. The strategy lowers electrocatalyst d-band position to weaken H adsorption and concurrently creates electron-deficient sites to kinetically drive NRR by promoting catalyst-N interaction.