To enable open environment application of artificial photosynthesis, the direct utilization of environmental CO via an oxygen-tolerant reductive procedure is necessary. Herein, we introduce an in situ growth strategy for fabricating two-dimensional heterojunctions between indium porphyrin metal-organic framework (In-MOF) and single-layer graphene oxide (GO). Upon illumination, the In-MOF/GO heterostructure facilitates a tandem CO capture and photocatalytic reduction on its hydroxylated In-node, prioritizing the reduction of dilute CO even in the presence of air-level O. The In-MOF/GO heterostructure photocatalyst is integrated with a porous polytetrafluoroethylene (PTFE) membrane to construct a floatable artificial leaf. Through a triphase photocatalytic reaction, the floatable artificial leaf can remove aqueous contaminants from real water while efficiently reducing CO at low concentrations (10%, approximately the CO concentration in combustion flue gases) upon air-level O. This study provides a scalable approach for the construction of photocatalytic devices for CO conversion in open environments.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1038/s41467-024-55753-2 | DOI Listing |
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11696042 | PMC |
Publication Analysis
Top Keywords
Similar Publications
Floatable artificial leaf to couple oxygen-tolerant CO conversion with water purification.
Nat Commun
January 2025
Key Laboratory of Photochemistry, Institute of Chemistry Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, Beijing, PR China.
To enable open environment application of artificial photosynthesis, the direct utilization of environmental CO via an oxygen-tolerant reductive procedure is necessary. Herein, we introduce an in situ growth strategy for fabricating two-dimensional heterojunctions between indium porphyrin metal-organic framework (In-MOF) and single-layer graphene oxide (GO). Upon illumination, the In-MOF/GO heterostructure facilitates a tandem CO capture and photocatalytic reduction on its hydroxylated In-node, prioritizing the reduction of dilute CO even in the presence of air-level O.
View Article and Find Full Text PDFResearch on floating object classification algorithm based on convolutional neural network.
Sci Rep
December 2024
School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
With the advancement of artificial intelligence technology, unmanned boats utilizing deep learning models have shown significant potential in water surface garbage classification. This study employs Convolutional Neural Network (CNN) to extract features of water surface floating objects and constructs the VGG16-15 model based on the VGG-16 architecture, capable of identifying 15 common types of water surface floatables. A garbage classification dataset was curated to obtain 5707 images belonging to 15 categories, which were then split into training and validation sets in a 4:1 ratio.
View Article and Find Full Text PDFEvaluation of floatability characteristics of gastroretentive tablets using VIS imaging with artificial neural networks.
Eur J Pharm Biopharm
November 2024
Department of Pharmaceutics, Semmelweis University, 9 Hőgyes Endre Street, Budapest H-1092, Hungary. Electronic address:
Gastroretentive dosage forms are recommended for several active substances because it is often necessary for the drug to be released from the carrier system into the stomach over an extended period. Among gastroretentive dosage forms, floating tablets are a very popular pharmaceutical technology. In this study, it was investigated whether a rapid, nondestructive method can be used to characterize the floating properties of a tablet.
View Article and Find Full Text PDFFloating MIL-88A(Fe)@expanded perlites catalyst for continuous photo-Fenton degradation toward tetracyclines under artificial light and real solar light.
J Hazard Mater
July 2024
Institute of Analysis and Testing, Beijing Academy of Science and Technology (Beijing Center for Physical & Chemical Analysis), Beijing 100089, PR China.
Article Synopsis
- - The study created a floating catalyst, MIL-88A(Fe)@expanded perlites (M@EP), to efficiently degrade tetracycline antibiotics in water using UV and sunlight through a high throughput synthesis method.
- - The M@EP demonstrated nearly 100% removal of tetracycline antibiotics in just a few days under both types of light, with significant reductions in toxic byproducts as suggested by toxicity tests on mung beans.
- - The research also showed that M@EP could continuously degrade a mixture of antibiotics for up to 7 days under UV light and 5 days under sunlight, indicating its potential for large-scale wastewater purification applications.
Improved Flotation Separation of Scheelite from Calcite by Sulfomethylated Kraft Lignin.
Materials (Basel)
June 2023
School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China.
Low-grade and high-reserve scheelite, which is associated with calcite, has similar surface properties that cause difficulty in separation. In this study, sulfomethylated kraft lignin (SMKL) was used as a novel eco-friendly inhibitor for the flotation separation of scheelite and calcite. The flotation test results showed that 60 mg/L SMKL had a significant influence on depressing calcite flotation, while it had a slight effect on scheelite flotation.
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!