Characterization of Metal-Doped Methylated Microporous Silica for Molecular Separations

Author(s):  
Tània Gumí ◽  
Hany El-Feky ◽  
Kelly Briceño ◽  
Kamila Szałata ◽  
Miguel Hevia
2021 ◽  
Vol 173 ◽  
pp. 110911
Author(s):  
Anastasia V. Sadetskaya ◽  
Natalia P. Bobrysheva ◽  
Mikhail G. Osmolowsky ◽  
Olga M. Osmolovskaya ◽  
Mikhail A. Voznesenskiy

2015 ◽  
Vol 355 ◽  
pp. 748-760 ◽  
Author(s):  
C.K. Rojas-Mayorga ◽  
A. Bonilla-Petriciolet ◽  
J. Silvestre-Albero ◽  
I.A. Aguayo-Villarreal ◽  
D.I. Mendoza-Castillo

2003 ◽  
Vol 799 ◽  
Author(s):  
M. H. Kane ◽  
R. Varatharajan ◽  
Z. C. Feng ◽  
S. Kandoor ◽  
J. Nause ◽  
...  

ABSTRACTIn this work, we report on the material properties of ZnO doped with Mn, Co, and Fe grown by a modified melt growth technique. X-ray diffraction measurements show that transition metals can be incorporated on Zn sites; an increase in the lattice parameter is apparent with increasing doping level. UV-visible transmission and reflectance measurements have also been performed. Absorption bands in the visible regime are distinctive to the individual transition metal dopants. A noticeable shift in the optical band edge has been observed from these Mn/Co/Fe-doped ZnO crystals in comparison with the undoped material. ZnO may also provide a suitable platform for the incorporation of transition metal elements through high temperature near equilibrium growth processes; however, further work is required in order to employ these materials for spintronic applications.


2021 ◽  
Author(s):  
Dilek Çanakçı

Abstract In this study, hydroxyapatites reinforced with Boron, Copper and Zinc at different rates were produced using the sol-gel method. Different amounts of metal during the production of hydroxyapatite were used to observe the amount of crystallization and morphological differences in their structures. The characterization of the metal-doped HAp was carried out by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and Energy-dispersive X-ray spectroscopy (EDX). The data indicated that the Ca/P stoichiometric ratios of the samples varied between 1.71 and 2, so their morphologies were different from each other. The absorption behavior of novel metal-doped HAp samples was evaluated at room temperature by UV-vis spectroscopy. In the absorption spectra of the samples, absorption bands formed in similar regions. In addition, the thermal behavior of HAp samples was investigated using TG/DTA techniques. The results of the analysis showed that heat resistance of the new synthesized samples was quite high.


2013 ◽  
Vol 19 (S2) ◽  
pp. 646-647
Author(s):  
N.L. Cordes ◽  
G.J. Havrilla ◽  
K.A. Obrey ◽  
B.M. Patterson

Extended abstract of a paper presented at Microscopy and Microanalysis 2013 in Indianapolis, Indiana, USA, August 4 – August 8, 2013.


2010 ◽  
Vol 10 (3) ◽  
pp. 947-951 ◽  
Author(s):  
Yoon Jae Lee ◽  
Ji Chul Jung ◽  
Sunyoung Park ◽  
Jeong Gil Seo ◽  
Sung-Hyeon Baeck ◽  
...  
Keyword(s):  

2018 ◽  
Vol 486 ◽  
pp. 148-154 ◽  
Author(s):  
C. Latha ◽  
C.K. Mahadevan ◽  
Li Guo ◽  
Jinghe Liu
Keyword(s):  

Sign in / Sign up

Export Citation Format

Share Document