Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Zahra Shiri-Yekta"'
Autor:
Mahya Fayezi, Zahra Shiri-Yekta, Hamid Sepehrian, Mehran Heydari, Mohammad Rahghoshay, Samaneh Zolghadri
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-14 (2023)
Abstract In the present study, an Iranian natural zeolite (Sabzevar region) was evaluated as a natural adsorbent for the elimination and immobilization of strontium ions from an aqueous solution. For improving the adsorption efficiency of strontium i
Externí odkaz:
https://doaj.org/article/3db108c41fe24d05b489090c99a3a606
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-13 (2023)
Abstract A MnO2–ZrO2-polyacrylonitrile (MnO2–ZrO2-PAN) composite ion exchanger was produced and its properties were examined by Fourier-transformed infrared spectroscopy, scanning electron microscopy, The BET (Brunauer, Emmett and Teller) surface
Externí odkaz:
https://doaj.org/article/3e3656613c7e401fa546ff7fa5129012
Autor:
Elnaz Shargh, Hossein Sid Kalal, Zahra Shiri-Yekta, Seyed Ebrahim Mousavi, Mohammad Reza Almasian, Mohammad Tagiof, Hassan Hoveidi
Publikováno v:
Avicenna Journal of Environmental Health Engineering, Vol 7, Iss 2, Pp 97-108 (2020)
In this study, the magnetic 3-(trimethoxysilyl) propyl methacrylate (TMSPMA) – poly (4-vinylpyridine) (P4VP) was synthesized and characterized. Removal of Molybdenum (Mo) from aqueous solutions using prepared material as nanosorbent was investigate
Externí odkaz:
https://doaj.org/article/89143453efc648bc9dbb085e57ae9c74
Publikováno v:
Iranian Journal of Chemistry & Chemical Engineering, Vol 29, Iss 2, Pp 11-17 (2010)
Two N4-type Schiff base ligands named N,N'-bis(2-pyridylmethylidene)-1,2-diiminoethane (L1) and N,N'-bis(2-pyridylmethylidene)-1,3-diiminopropane (L2) have been synthesized by the reaction of pyridine-2-carbaldehyde with ethylenediamine and propylene
Externí odkaz:
https://doaj.org/article/09f271509815429699685c30fda0c8a3
Publikováno v:
Radiochimica Acta.
Uranium biosorption was investigated using the bio-adsorbent of Plantain leaves. First, the bio-adsorbent structure was characterized using BET, SEM, and FTIR. The effective parameters pH, initial uranium concentration, bio-adsorbent dose, and the te
Autor:
Zinat Karamzadeh, Mohammad Reza Yaftian, Zahra Shiri Yekta, Abdolreza Nilchi, Leila Dolatyari
Publikováno v:
Iranian Journal of Chemistry & Chemical Engineering, Vol 35, Iss 2, Pp 89-95 (2016)
Extraction-separation of Eu(III) and Th(IV) ions from nitrate media into the ionic liquid 1-hexyl-3-methylimidazolium hexafluorophosphate by a phosphorylated salen extractant, bis(chlorophosphoryle)decahydro-2,4-di(2-hydroxyphenyl)benzo[d][1,3,6]oxad
Autor:
Morteza Hosseinpour, Neda Akbari, Zahra Shiri-Yekta, Mohammad Hossein Mashhadizadeh, Seyed Javad Ahmadi
Publikováno v:
Korean Journal of Chemical Engineering. 32:478-485
This study focuses mainly on the synthesis of MnO2-ZrO2 nano-composite as a new inorganic adsorbent. Supercritical water was used as a preparation medium for particle deposited materials. MnO2-ZrO2 was prepared from metal nitrate solutions in supercr
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 302:1143-1150
Separation and detection of lanthanides, thorium and uranyl ions by capillary zone electrophoresis in the presence of 2-thenoyltrifluoroacetone (HTTA) as UV-absorbing complexing agent were investigated. The separation of positively charged complexes
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 299:1701-1707
Hydrous, amorphous MnO2–ZrO2 composite was prepared as a new inorganic composite material under various conditions for removal of Sr2+ ion from aqueous solutions. The physico-chemical characterization was carried out by Fourier transform infrared s
Publikováno v:
Korean Journal of Chemical Engineering. 30:1644-1651
Modification of SiO2 nanoparticles by salicylaldiminepropyl results in efficient adsorbents for removal of Th4+, UO22+ and Eu3+ ions from aqueous solutions. The effect of parameters influencing the adsorption efficiency such as aqueous phase pH, cont