Zobrazeno 1 - 10
of 256
pro vyhledávání: '"Gheorghe, Nechifor"'
Autor:
Aurelia Cristina Nechifor, Paul Constantin Albu, Ludmila Motelica, Geani Teodor Man, Alexandra Raluca Grosu, Szidonia-Katalin Tanczos, Vlad-Alexandru Grosu, Virgil Emanuel Marinescu, Gheorghe Nechifor
Publikováno v:
Applied Sciences, Vol 14, Iss 21, p 9937 (2024)
Thorium is a weak radioactive element, but the control of its concentration in natural aqueous systems is of great interest for health, because it is a toxic heavy metal. The present paper presents the recovery of thorium from diluted synthetic aqueo
Externí odkaz:
https://doaj.org/article/adf797eba0914d42ac773ce272dc573b
Autor:
Andreia Pîrțac, Aurelia Cristina Nechifor, Szidonia-Katalin Tanczos, Ovidiu Cristian Oprea, Alexandra Raluca Grosu, Cristian Matei, Vlad-Alexandru Grosu, Bogdan Ștefan Vasile, Paul Constantin Albu, Gheorghe Nechifor
Publikováno v:
Molecules, Vol 29, Iss 8, p 1842 (2024)
Membrane materials with osmium nanoparticles have been recently reported for bulk membranes and supported composite membrane systems. In the present paper, a catalytic material based on osmium dispersed in n–decanol (nD) or n–dodecanol (nDD) is p
Externí odkaz:
https://doaj.org/article/df729c5f5d5c432bb983af2a4cadf42e
Simultaneously Recovery of Thorium and Tungsten through Hybrid Electrolysis–Nanofiltration Processes
Autor:
Geani Teodor Man, Paul Constantin Albu, Aurelia Cristina Nechifor, Alexandra Raluca Grosu, Diana Ionela Popescu (Stegarus), Vlad-Alexandru Grosu, Virgil Emanuel Marinescu, Gheorghe Nechifor
Publikováno v:
Toxics, Vol 12, Iss 2, p 103 (2024)
The recovery and recycling of metals that generate toxic ions in the environment is of particular importance, especially when these are tungsten and, in particular, thorium. The radioactive element thorium has unexpectedly accessible domestic applica
Externí odkaz:
https://doaj.org/article/8738a4d244a941dd8b2f8ecf497164b3
Autor:
Geani Teodor Man, Paul Constantin Albu, Aurelia Cristina Nechifor, Alexandra Raluca Grosu, Szidonia-Katalin Tanczos, Vlad-Alexandru Grosu, Mihail-Răzvan Ioan, Gheorghe Nechifor
Publikováno v:
Membranes, Vol 13, Iss 9, p 765 (2023)
Although only a slightly radioactive element, thorium is considered extremely toxic because its various species, which reach the environment, can constitute an important problem for the health of the population. The present paper aims to expand the p
Externí odkaz:
https://doaj.org/article/4efe5ddc3a35475cb0826ab148fef806
Autor:
Daniel Mitru, Irina Lucaciu, Mihai Nita-Lazar, Cristina Ileana Covaliu, Gheorghe Nechifor, Ioana Corina Moga, Bogdan Marin, Iuliana Paun
Publikováno v:
Romanian Journal of Ecology & Environmental Chemistry, Vol 2, Iss 2, Pp 210-220 (2020)
The environment pollution is an important issue influencing on human health and environmental equilibrium. The range of pollutants is very wide due to the industrialization and population growth and the surfactants are one of the most common organic
Externí odkaz:
https://doaj.org/article/49be1d03d6254da887e0ef12d7e7ebb6
Autor:
Dumitru Pașcu, Aurelia Cristina Nechifor, Vlad-Alexandru Grosu, Ovidiu Cristian Oprea, Szidonia-Katalin Tanczos, Geani Teodor Man, Florina Dumitru, Alexandra Raluca Grosu, Gheorghe Nechifor
Publikováno v:
Membranes, Vol 13, Iss 3, p 350 (2023)
This paper presents the preparation and characterization of composite membranes based on chitosan (Chi), sulfonated ethylene–propylene–diene terpolymer (sEPDM), and polypropylene (PPy), and designed to capture hydrogen sulfide. The Chi/sEPDM/PPy
Externí odkaz:
https://doaj.org/article/bbb67cbb5bee4f589cec022a685acc33
Autor:
Florentina Mihaela Păncescu, Abbas Abdul Kadhim Klaif Rikabi, Ovidiu Cristian Oprea, Alexandra Raluca Grosu, Aurelia Cristina Nechifor, Vlad-Alexandru Grosu, Szidonia-Katalin Tanczos, Florina Dumitru, Gheorghe Nechifor, Simona Gabriela Bungău
Publikováno v:
Membranes, Vol 13, Iss 3, p 282 (2023)
Melatonin is the hormone that focuses the attention of the researchers in the medical, pharmaceutical, materials, and membranes fields due to its multiple biomedical implications. The variety of techniques and methods for the controlled release of me
Externí odkaz:
https://doaj.org/article/2f869ccedaed42d083c8ae4da5782ec5
Autor:
Anca Maria Cimbru, Abbas Abdul Kadhim Klaif Rikabi, Ovidiu Oprea, Alexandra Raluca Grosu, Szidonia-Katalin Tanczos, Maria Claudia Simonescu, Dumitru Pașcu, Vlad-Alexandru Grosu, Florina Dumitru, Gheorghe Nechifor
Publikováno v:
Membranes, Vol 12, Iss 9, p 833 (2022)
The development of new composite membranes is required to separate chemical species from aggressive environments without using corrective reagents. One such case is represented by the high hydrochloric acid mixture (very low pH and pCl) that contains
Externí odkaz:
https://doaj.org/article/c1a6d0eeb2cb468b93f478896b8d3b74
Autor:
Gabriela Paun, Elena Neagu, Viorica Parvulescu, Mihai Anastasescu, Simona Petrescu, Camelia Albu, Gheorghe Nechifor, Gabriel Lucian Radu
Publikováno v:
Membranes, Vol 12, Iss 7, p 689 (2022)
This study presents the preparation of hybrid nanofiltration membranes based on poly(1,4-phenylene ether ether sulfone), polyacrylonitrile, poly(vinyl pyrrolidone), and SBA-15 mesoporous silica. Laser treatment of polymeric solutions to enhance the h
Externí odkaz:
https://doaj.org/article/d1d224f9268142fb8a5b941b1402ec04
Autor:
Gheorghe Nechifor, Alexandra Raluca Grosu, Andreea Ferencz (Dinu), Szidonia-Katalin Tanczos, Alexandru Goran, Vlad-Alexandru Grosu, Simona Gabriela Bungău, Florentina Mihaela Păncescu, Paul Constantin Albu, Aurelia Cristina Nechifor
Publikováno v:
Membranes, Vol 12, Iss 6, p 557 (2022)
The bio-medical benefits of silver ions and 10–undecenoic acid in various chemical-pharmaceutical preparations are indisputable, thus justifying numerous research studies on delayed and/or controlled release. This paper presents the effect of the p
Externí odkaz:
https://doaj.org/article/7269702415bc486f94d78e2405305945