Developing efficient artificial photocatalysts for the biomimetic photocatalytic production of molecular materials, including medicines and clean energy carriers, remains a fundamentally and technologically essential challenge. Hydrogen peroxide is widely used in chemical synthesis, medical disinfection, and clean energy. However, the current industrial production, predominantly by anthraquinone oxidation, suffers from hefty energy penalties and toxic byproducts. Herein, we report the efficient photocatalytic production of hydrogen peroxide by protonation-induced dispersible porous polymers with good charge-carrier transport properties. Significant photocatalytic hydrogen peroxide generation occurs under ambient conditions at an unprecedented rate of 23.7 mmol g h and an apparent quantum efficiency of 11.3% at 450 nm. Combined simulations and spectroscopies indicate that sub-picosecond ultrafast electron "localization" from both free carriers and exciton states at the catalytic reaction centers underlie the remarkable photocatalytic performance of the dispersible porous polymers.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10613291 | PMC |
| http://dx.doi.org/10.1038/s41467-023-42720-6 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Accumulation of microplastics in relation to the sediment grain size distribution in seagrass meadows in the coastal areas of Tuticorin, southeast coast of India.
Mar Pollut Bull
January 2025
Suganthi Devadason Marine Research Institute, Tuticorin, Tamil Nadu, India; Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli, Tamil Nadu, India.
This research investigated the relationship between microplastic accumulation and the sediment texture in seagrass meadows across the selected coastal regions of Tuticorin. Sixteen sediment samples were collected by SCUBA divers utilizing a stainless steel grab sampler. Findings indicate significantly elevated microplastic concentrations in seagrass sediments when compared to unvegetated areas.
View Article and Find Full Text PDFComparative Analysis Between Strip and Gels Indicated for at Home Bleaching: Analysis of Color Alteration, Roughness and Microhardness of Dental Enamel.
J Esthet Restor Dent
January 2025
Department of Preventive and Restorative Dentistry, São Paulo State University (UNESP), School of Dentistry Araçatuba, Sao Paulo, Brazil.
Purpose: To compare the color alteration, surface roughness and microhardness and cross-sectional microhardness of bovine enamel treated with at-home whitening strips and gels.
Materials And Methods: Sixty-six pigmented specimens (n = 11) were allocated to six groups: C-cotton wool moistened with distilled water for 1 h; SDS-sodium dithionite strip, for 1 h; HPS-6.5% hydrogen peroxide strip, for 1 h; CPS-20% carbamide peroxide strip, for 1 h; HPG-7.
Effectiveness of Plant-Induced Resistance Against Root-Knot Nematode Depends on the Policy of Using Inducer on the Host Plant.
Curr Microbiol
January 2025
Department of Horticulture, Agriculture Faculty of Aburaihan, University of Tehran, P.O. Box 11365/4117, Tehran, Iran.
This research was conducted to determine the relationship between plant defense responses and the extent of treatment applied to either the aerial parts or roots of the plant. The experimental treatments included different methods of application (spraying versus soil drenching), varying treatment areas (one-sixth, one-third, half, or all of the plant's aerial parts and roots) with SA, and infecting the plants with root-knot nematodes. Evaluation of plant growth and nematode pathogenicity indices in the greenhouse section, HO accumulation rate, and phenylalanine ammonia lyase enzyme activity (in aerial parts and roots) were carried out in biochemical experiments.
View Article and Find Full Text PDFContinuous photo-oxidation of methane to methanol at an atomically tailored reticular gas-solid interface.
Nat Commun
January 2025
Research Center for Solar Driven Carbon Neutrality, School of Physics Science and Technology, In-stitute of Life Science and Green Development, Hebei University, Baoding, 071002, PR China.
Photo-oxidation of methane (CH) using hydrogen peroxide (HO) synthesized in situ from air and water under sunlight offers an attractive route for producing green methanol while storing intermittent solar energy. However, in commonly used aqueous-phase systems, photocatalysis efficiency is severely limited due to the ultralow availability of CH gas and HO intermediate at the flooded interface. Here, we report an atomically modified metal-organic framework (MOF) membrane nanoreactor that promotes direct CH photo-oxidation to methanol at the gas-solid interface in a reticular open framework.
View Article and Find Full Text PDFStructure Characterization and Antioxidant Properties of a Triple Helix Galactoglucomannan from the Fruiting Bodies of Russula virescens (Agaricomycetes).
Int J Med Mushrooms
January 2025
College of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan, China; Collaborative Innovation Center of Food Production and Safety, Zhengzhou, Henan, China.
RVP, a water-soluble triple-helix galactoglucomannan, was successfully extracted from the fruiting body of Russula virescens using an alkali extraction method. Physicochemical properties analysis showed that the protein content of RVP was low (0.95%).
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!