The photoresponse and photocatalytic efficiency of bismuth oxychloride (BiOCl) are greatly limited by rapid recombination of photogenerated carriers. The construction of porous single-crystal BiOCl photocatalyst can effectively alleviate this issue and provide accessible active sites. Herein, a facile chelated ion-exchange strategy is developed to synthesize BiOCl mesoporous single-crystalline nanosheets (BiOCl MSCN) using acetic acid and ammonia solution respectively as chelating agent and ionization promoter. The strong chelation between acetate ions and Bi ions introduces acetate ions into the precipitated product to exchange with Cl ions, resulting in large lattice mismatch, strain release, and formation of void-like mesopores. The prepared BiOCl MSCN photocatalyst exhibits excellent catalytic performance with 99% conversion and 98% selectivity for oxidation of benzyl alcohol to benzaldehyde and superior general adaptability for various aromatic alcohols. The theoretical calculations and characterizations confirm that the superior performance is mainly attributed to the abundant oxygen vacancies, plenty of accessible adsorption/active sites and fast charge transport path without grain boundaries.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/adma.202300396 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Injectable Biocompatible Zeolite Nanocrystals for Enhanced Tumor Oxygenation and MRI Imaging.
ACS Appl Mater Interfaces
January 2025
Université de Caen Normandie, ENSICAEN, CNRS, LCS, 14000 Caen, France.
Tumor hypoxia significantly limits the effectiveness of radiotherapy, as oxygen is crucial for producing cancer-killing reactive oxygen species. To address this, we synthesized nanosized faujasite (PBS-Na-FAU) zeolite crystals using clinical-grade phosphate-buffered saline (PBS) as the solvent, ensuring preserved crystallinity, microporous volume, and colloidal stability. The zeolite nanocrystals showed enhanced safety profiles and , and studies showed no apparent toxicity to animals.
View Article and Find Full Text PDFImproving ultrafiltration efficiency of acidified skim milk using bipolar membrane electrodialysis: Impact on protein concentrate composition, process performance, and fouling.
Food Res Int
January 2025
Department of Food Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg, Denmark. Electronic address:
The efficiency of ultrafiltration (UF) of acidified skim milk (SM) is impaired by protein aggregation and mineral scaling. The aim of this study is to assess the potential of acidification by electrodialysis with bipolar membranes (EDBM), in comparison with citric acid (CA), prior to the UF process on filtration performance, fouling and composition of the protein concentrates. Electro-acidification, facilitated by a water-splitting reaction, decreased the pH of milk to ∼ 5.
View Article and Find Full Text PDFSodium alginate-crosslinked montmorillonite nanosheets hydrogel for efficient gallium recovery.
Int J Biol Macromol
January 2025
Zhongyuan Critical Metals Laboratory, Zhengzhou University, Zhengzhou, Henan 450001, PR China; School of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan 450001, PR China; Luoyang Industrial Technology Institute, Luoyang, Henan 471132, PR China; The Key Lab of Critical Metals Minerals Supernormal Enrichment and Extraction, Ministry of Education, Zhengzhou, Henan 450001, PR China.
An efficient adsorbent for Ga(III) recovery was developed by applying the geochemical principles of Ga mineralization, using Al-rich clay minerals with a natural affinity for Ga as the raw material. Sodium alginate (SA) facilitated the cross-linked assembly of montmorillonite nanosheets (MMTNS), forming a three-dimensional structured hydrogel. This was achieved through electrostatic interactions between -OH groups on the edges of MMTNS and -COO groups in SA, as well as the complexation of Ca and -COO groups.
View Article and Find Full Text PDFQuaternized Nanofiber-Based Anion-Exchange Chromatography Membrane with Periodic Diagonal Surface Structure for Efficient Protein Separation.
ACS Appl Mater Interfaces
January 2025
Key Laboratory of Textile Fiber and Products, Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Intelligent Textile Materials & Application, Wuhan Textile University, Wuhan 430200, China.
Constructing a nanofibrous membrane with high flow rate surface pore structure and high-density ligand chemical structure is a promising strategy to balance the trade-off between high flow rates and high adsorption capacity for protein separation and purification. Herein, a nanofiber-based ion-exchange chromatography membrane with a periodic diagonal surface structure and high ionic strength ligands was fabricated using dispersion cross-linking, wet coating, and template printing with a three-wire diagonal woven mesh. For this membrane, EVOH nanofibers were used as skeleton, glutaraldehyde (GA) as cross-linking agent, and quaternized chitosan (QCS) as binder and functional ligand.
View Article and Find Full Text PDFConstruction of a recyclable magnetic chitosan/AlOOH/PEI composite with hierarchical porous structure for enhanced adsorption of fluoride ions from wastewater.
Int J Biol Macromol
January 2025
School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
Article Synopsis
- Al(III)-based adsorbents are effective for fluoride (F) removal but face challenges like instability and recycling issues, prompting the development of a more efficient adsorbent.
- The new adsorbent, magnetic chitosan/AlOOH/polyethyleneimine (MCAlP), exhibits improved structural stability and significantly enhances fluoride adsorption capacity (14.9 mg/g more than AlOOH) while reducing the time to reach adsorption equilibrium by 120 minutes.
- MCAlP effectively reduces fluoride concentration from 10.1 to 1.2 mg/L in just 10 minutes, demonstrating robust performance unaffected by coexisting ions, primarily through ion exchange, electrostatic interaction, and surface complexation
Want 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!