XPS characterization of silver exchanged ETS-10 and mordenite molecular sieves.

J Nanosci Nanotechnol

Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 266, Canada.

Published: May 2009

Silver exchanged molecular sieves ETS-10 (Ag-ETS-10) and mordenite (Ag-mordenite) were dehydrated under vacuum at temperatures between 100 degrees C-350 degrees C. Changes in the state of the silver were studied using X-ray photoelectron spectroscopy (XPS). Silver cations in titanosilicate Ag-ETS-10 are fully reduced to Ag(0) at temperatures as low as 150 degrees C. The characteristic features of the XPS spectrum of silver in this Ag-ETS-10 species correspond to only metallic silver. The signal for metallic silver is not observed in the XPS spectrum of aluminosilicate Ag-mordenite, indicating that silver cations are not reduced, even after heating to 350 degrees C.

Download full-text PDF

Source
http://dx.doi.org/10.1166/jnn.2009.044DOI Listing

Publication Analysis

Top Keywords

silver
8
silver exchanged
8
molecular sieves
8
silver cations
8
xps spectrum
8
metallic silver
8
xps
4
xps characterization
4
characterization silver
4
exchanged ets-10
4

Similar Publications

Multiple respiratory viruses can concurrently or sequentially infect the respiratory tract, making their identification crucial for diagnosis, treatment, and disease management. We present a label-free diagnostic platform integrating surface-enhanced Raman scattering (SERS) with deep learning for rapid, quantitative detection of respiratory virus coinfections. Using sensitive silica-coated silver nanorod array substrates, over 1.

View Article and Find Full Text PDF

Antimicrobial and Antibiofilm Activities of Urinary Catheter Incorporated with ZnO-Carbon Nanotube.

ACS Appl Bio Mater

January 2025

College of Pharmacy and Inje Institute of Pharmaceutical Sciences and Research, Inje University, Gimhae 50832, Republic of Korea.

Urinary tract infections are among the most common nosocomial infections, with the majority being catheter-associated urinary tract infections (CAUTIs). This study demonstrated that an antimicrobial and antibiofilm urinary catheter containing zinc oxide-carbon nanotubes (ZnO-CNT) can inhibit CAUTIs in patients. ZnO-CNT polymers were synthesized by mixing ZnO and CNT using a high-shear mixer, and the synthesized ZnO-CNT polymers were incorporated into a silicone matrix to produce a ZnO-CNT urinary catheter.

View Article and Find Full Text PDF

Three fish species (common carp, Wels catfish, and silver carp) were collected from three locations along the Danube River in Serbia, and fish meat was analyzed for the content of toxic elements, micro- and macrominerals. Silver carp had the highest lead (Pb), arsenic (As), and cadmium (Cd) content, while Wels catfish had the highest level of mercury (Hg). Moreover, metal pollution index (MPI) ranged from 0.

View Article and Find Full Text PDF

Eosinophilia is a notable feature in various hematological malignancies, including specific types of leukemias and lymphomas that may occur in the head and neck. In hematologic malignancies, eosinophilia can be primary, driven by genetic abnormalities, or secondary, resulting from cytokine and chemokine production by the neoplastic cells or the tumor microenvironment. This review examines the association between eosinophilia and head and neck hematolymphoid malignancies including Classic Hodgkin lymphoma, T-cell lymphoblastic leukemia, mature T and NK-cell lymphomas, and Langerhans cell histiocytosis.

View Article and Find Full Text PDF

This article presents new data on the integrated use of colloidal solutions of nanoparticles and low-intensity laser radiation on the biosynthetic activity of the medicinal mushroom . Traditional mycological methods, colloidal solutions of biogenic metals, and unique photobiological methods have also been used. It was found that colloidal solutions of nanoparticles of all metals used increased the growth characteristics of (55-60%), while irradiation of the fungal inoculum with laser light in a medium with nanoparticles reduced the growth activity of mycelia by 12.

View Article and Find Full Text PDF

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!