98%
921
2 minutes
20
The rapid increase in atmospheric CO levels due to industrialization underscores the urgent need for innovative carbon valorization strategies. Photocatalytic CO reduction presents a sustainable solution; however, conventional systems suffer from inefficient charge separation and limited product applicability. Herein, a green and scalable tandem strategy is developed by integrating S-scheme photocatalysis with palladium-catalyzed carbonylation. A rationally designed CeO/BiS heterojunction leverages its hierarchical structure, broad visible-light absorption, oxygen-vacancy-mediated charge dynamics, and the S-scheme charge transfer mechanism to achieve highly efficient photocatalytic CO-to-CO conversion (14.05 mmol g, 98% selectivity). The generated CO is directly utilized in a subsequent carbonylation reaction under mild conditions, yielding high-value amides with near-quantitative CO utilization. This integrated approach eliminates the risks of CO handling and enhances economic viability, providing a direct and effective route for converting CO into fine chemicals. By bridging photocatalysis with industrial catalysis, this work advances sustainable carbon recycling technologies and opens avenues for the development of efficient CO conversion systems.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12296732 | PMC |
http://dx.doi.org/10.1038/s41467-025-60961-5 | DOI Listing |
Chem Sci
August 2025
Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University Jinhua Zhejiang 321004 P. R. China
Selective photoreduction of CO with HO to hydrocarbons is challenged by inadequate and uncontrollable electron and proton feeding. Herein, this limitation is overcome by integrating HO dissociation, CO reduction, and O evolution catalysts into a dual S-scheme heterojunction and regulating exposed facets of the heterojunction supports. In this design, H and OH species generated by HO dissociation on the NH-MIL-125 support transfer to the T-COF shell and FeO insert for CO reduction and O evolution, respectively.
View Article and Find Full Text PDFEnviron Res
August 2025
Industrial Engineering Department, College of Engineering and Computer Science, Jazan University, Jazan, 45142, Saudi Arabia.
The development of efficient and sustainable catalytic systems for wastewater treatment and clean energy production remains a critical challenge in environmental and energy research. In this work, we report the DES-mediated synthesis of a guar gum/activated carbon-derived SnFeNi/Al/Ce/Mo oxide S-scheme heterojunction. Several advanced characterization techniques, including XRD, SEM, XPS, and FTIR, were employed to evaluate the material's crystallinity, morphology, and elemental composition, while EIS analysis confirmed its superior charge transfer efficiency and interfacial kinetics.
View Article and Find Full Text PDFNano Lett
September 2025
School of Materials Science and Engineering, Key Laboratory of Automobile Materials of MOE, Electron Microscopy Center, Jilin University Changchun 130012, China.
Hydrogen peroxide is essential for green synthesis, disinfection, and energy storage, but its production remains reliant on the energy-intensive anthraquinone process, prompting the need for sustainable photocatalytic alternatives. A key challenge in artificial HO photosynthesis is achieving high selectivity in the two-electron oxygen reduction reaction while enhancing the reactant transport and charge separation efficiency. Herein, we design a S-scheme heterojunction integrating a sp carbon-conjugated covalent organic framework (CC-COF) and ZnInS (ZIS) that enables localized oxygen enrichment and spatially confined oxygen reduction reaction sites, favoring selective HO production.
View Article and Find Full Text PDFLangmuir
August 2025
State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal University, Guilin 541004, China.
The ternary Bi/BiS/TiO (BST) heterojunction was successfully fabricated through integration of the hydrothermal method combined with thermal calcination. TiO nanosheets serves as the host for the in situ deposition of BiS and Bi nanoparticles, and the tight interface with the heterojunction favors efficient charge transfer. BiS with a narrow band gap characteristic enables UV-visible-infrared full-spectrum absorption, and metallic Bi with a surface plasmon resonance (SPR) effect generating hot electron injection can effectively transfer and separate photogenerated charge carriers.
View Article and Find Full Text PDFJ Colloid Interface Sci
December 2025
State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China.
The construction of built-in electric field (BIEF) in heterojunction is an effective strategy to enhance solar-driven hydrogen (H) production by minimizing charge carrier recombination and improving transport kinetics. Herein, p-type ternary sulfide CuGaS (CGS) and n-type g-CN nanosheets (CN) are integrated to construct a p-n heterojunction through a simple co-precipitation method for photocatalytic hydrogen evolution reaction (HER). In situ X-ray photoelectron spectroscopy (in situ XPS), in situ electron paramagnetic resonance (EPR) and density functional theory (DFT) calculations revealed that differences in Fermi levels and carrier concentrations between CGS and CN induce charge migration following an S-scheme mechanism, which aligned well with the intrinsic p-n junction field.
View Article and Find Full Text PDF