Zobrazeno 1 - 10
of 32
pro vyhledávání: '"M. A. H. Hafez"'
Autor:
Zainab Abd Elbary, Khaled S. Abou-El-Sherbini, Ibrahim M.M. Kenawy, Abdalla A. Mousa, M. A. H. Hafez
Publikováno v:
Sustainable Environment Research, Vol 31, Iss 1, Pp 1-14 (2021)
The adsorption process of the industrialized dye Isolan Dark Blue 2SGL-01 (IDB) onto (Mg-Zn)/(Al-Fe)-(CO3)/Cl layered double hydroxides (LDHs) coded LDH21 and LDH22 and its calcined products CLDHs (CLDH21 and CLDH22), respectively, was investigated.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::587930f53f8e2d3a3675146095ee216e
https://doaj.org/article/373cdf1fa9454b4c8e4b27ac7fe18a7c
https://doaj.org/article/373cdf1fa9454b4c8e4b27ac7fe18a7c
Publikováno v:
International Journal of Biological Macromolecules. 115:625-634
The new ion-imprinted guanyl-modified cellulose (II.Gu-MC) was prepared for the separation and determination of Cu (II) ions in different real samples. Several techniques such as Fourier Transform Infrared (FT-IR), scanning electron microscope (SEM),
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e34c038d08d8d71113fbefbae152656
https://doi.org/10.1016/j.ijbiomac.2018.04.100
https://doi.org/10.1016/j.ijbiomac.2018.04.100
Autor:
M. A. H. Hafez, Khaled S. Abou-El-Sherbini, Hesham R. Lotfy, Ibrahim M.M. Kenawy, Zaynab M.E.A. AbdElbary
Publikováno v:
Journal of Environmental Chemical Engineering. 3:2707-2721
The new CO 3 2− /Cl − layered double hydroxides (LDHs) (Mg (3−3 v ) Zn 3 v )/(Al (1− w ) Fe w ) were synthesized and calcined at 450 °C (CLDH), where v and w = 0, 0.1, 0.2, and/or 1, as adsorbents to remove anionic hazards such as Isolan Dar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3bad473ebc5f0c30442684dad7cb931c
https://doi.org/10.1016/j.jece.2015.09.015
https://doi.org/10.1016/j.jece.2015.09.015
Publikováno v:
International journal of biological macromolecules. 107
A novel chemically guanyl-modified cellulose (Gu-MC) - material has been synthesized for the adsorption of Cu2+, Cd2+, Hg2+, Pb2+ and Zn2+ metal ions from aqueous solution. Cellulose was pretreated with periodate prior to its condensation with aminog
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b83dc8e61b7ed8e6d9ca8713f8b2b2b9
https://pubmed.ncbi.nlm.nih.gov/28988841
https://pubmed.ncbi.nlm.nih.gov/28988841
Publikováno v:
Desalination. 250:62-70
The use of chemically modified silica gel N-(1-carboxy-6-hydroxy) benzylidenepropylamine (SiG-CHBPA), ion exchanger for removal and preconcentration of Cr, Mn, Fe, Co, Ni, Cu, Zn, Cd and Pb in natural water samples collected from River Nile, Mediterr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79d4aa53818f2392fa5a4372f4421912
https://doi.org/10.1016/j.desal.2009.09.009
https://doi.org/10.1016/j.desal.2009.09.009
Autor:
Mohamed E. Mahmoud, Magda A. Akl, Ezzat M. Soliman, Rabab R. A. Lashein, M. A. H. Hafez, Ibrahim M.M. Kenawy
Publikováno v:
Analytical Sciences. 24:381-387
Four chemically modified chelating silica gel phases (I - IV) with ion exchange groups were tested for their potential capability to selectively bind, extract and preconcentrate uranyl ions (UO(2)(2+)) from different aqueous solutions as well as ore
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0e00cdcea5d556a3652d2054f3ca954
https://doi.org/10.2116/analsci.24.381
https://doi.org/10.2116/analsci.24.381
Publikováno v:
Russian Journal of Electrochemistry. 42:225-232
Some kinetic and activation thermodynamic functions for the electrodeposition of palladium, thallium, and tellurium from the best selected baths, viz. niclosamide bath [5-chloro-N-(2-chloro-4-nitrophenyl)-2-hydroxybenzamide] for Pd, alizarin red bath
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3290280136ca8a527314c10ef35ee397
https://doi.org/10.1134/s1023193506030037
https://doi.org/10.1134/s1023193506030037
Publikováno v:
Talanta. 53:749-760
The use of chemically modified chloromethylated polystyrene-PAN, CMPS-PAN (ion-exchanger) for the preconcentration and separation of total mercury after digestion in preparation for determination by cold vapour atomic absorption spectrometry (CVAAS)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9eef53245877b1fe4be9962a163c535b
https://doi.org/10.1016/s0039-9140(00)00524-5
https://doi.org/10.1016/s0039-9140(00)00524-5
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 65:723-736
The complexes formed by the chemically modified chloromethylated poly(styrene)-PAN (CMPS-PAN) as a resin chelating ion exchanger were characterized by infrared and potentiometry. The thermal degradation of pure CMPS-PAN resin and its complexes with A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70293f5efa9264f252c8c421cebae60b
https://doi.org/10.1023/a:1011999325998
https://doi.org/10.1023/a:1011999325998
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 63:75-83
The structure of the studied compounds was confirmed by elemental analysis, IR and NMR. TG and DTG data were used to study the kinetics of the thermal decomposition process of some new cyanine dispersed dyes derived from 2-[(p-chloro)-styryl]-6-[5-(3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0dd0e78c640d52dfa95964d2f91ebf1c
https://doi.org/10.1023/a:1010128201853
https://doi.org/10.1023/a:1010128201853