Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Maria Emiliana Fortuna"'
Publikováno v:
Materials, Vol 6, Iss 10, Pp 4532-4544 (2013)
The goal of this study was to analyze the effects of cellulose fibers loading by precipitation in-situ of calcium carbonate over the properties of printing paper obtained from mixtures of the softwood and hardwood fibers. The effects of fibers with i
Externí odkaz:
https://doaj.org/article/4efdb398b0f04ea795cc32f812b2dfa7
Publikováno v:
Journal of Environmental Engineering and Landscape Management, Vol 21, Iss 4 (2013)
Construction and demolition wastes (C&DW) are usually recognized as not dangerous, but their accumulation can generate serious environmental problems. In spite of C&DW high potential to be reused/recycled, the practical procedures need to be assessed
Externí odkaz:
https://doaj.org/article/9b7af5a897004e4c894e2eaffcb1e6f2
Autor:
Alina Elena TROFIN, Elena UNGUREANU, Lucia Carmen TRINCA, Maria Emiliana FORTUNA, Diana Beatrice EPERJESSY
Publikováno v:
Journal of Applied Life Sciences and Environment. 55:31-44
The adsorption of metal ions from increasing concentrations in aqueous solutions by modified straw lignin Protobind 1000 was studied. The effect of metallic ion concentrations (from 20.72 to 207.2 mg·L-1 for Pb2+ and from 6.538 to 65.38 mg·L-1 for
Autor:
Adina Mirela Ariton, Lucia C. Trinca, Valentin I. Popa, Doina Carmenica Jitareanu, Ovidiu Costica Ungureanu, Elena Ungureanu, Maria Emiliana Fortuna, Alina Elena Trofin
Publikováno v:
Cellulose Chemistry and Technology. 55:939-948
In this study, the adsorption of Pb2+ and Zn2+ ions from aqueous solutions onto lignin obtained from unmodified Sarkanda grass was analyzed. To ensure optimal process conditions, the retention of lead and zinc ions was tested at different experimenta
Autor:
Ovidiu Costica Ungureanu, Doina Carmenica Jitareanu, Maria Ignat, Maria Emiliana Fortuna, Elena Ungureanu
Publikováno v:
Book of Abstracts SIMI 2021.
Publikováno v:
Materials
Volume 14
Issue 12
Materials, Vol 14, Iss 3336, p 3336 (2021)
Volume 14
Issue 12
Materials, Vol 14, Iss 3336, p 3336 (2021)
In the present work, precipitated calcium carbonate (PCC) and carboxymethyl chitosan (CMC) were prepared to obtain new hybrid materials used in papermaking. In the first step, occurred the precipitation of CaCO3 in solution containing CMC at differen
Autor:
Andra Cristina Humelnicu, Razvan Rotaru, Xenia Patras, Valeria Harabagiu, Mirela Teodorescu, Bogdan Ionel Tamba, Maria Emiliana Fortuna, Cristian Peptu
Publikováno v:
Chitin and Chitosan
Autor:
Andreia Leite, Maria Emiliana Fortuna, André M. N. Silva, Lucia Pricop, Maria Rangel, Ana M. G. Silva, Rodrigo P. Monteiro, Valeria Harabagiu, José Domingues de Almeida, Andrei Lobiuc
Publikováno v:
Journal of Porphyrins and Phthalocyanines. 23:1001-1012
The present research reports the efficient synthesis of mono- and di-(aminophenyl)porphyrins and their metalation with Zn(II) using microwave irradiation. The subsequent reaction of amino-functionalized porphyrins with siloxane moieties bearing epoxy
Autor:
Dumitru Popovici, Maria Emiliana Fortuna, Lucia Pricop, Valeria Harabagiu, Marcela Savin, Mihai Asandulesa, Carmen Racles, Mirela-Fernanda Zaltariov, Narcisa Marangoci
Publikováno v:
Journal of Inorganic and Organometallic Polymers and Materials. 29:2024-2034
The present paper presents the preparation and characterization of Ni complex of a guanidine functionalized trisiloxane as a model compound for polysiloxanes supported metal complexes. The structures of the ligand and its Ni complex are elucidated by
Publikováno v:
Materials, Vol 13, Iss 5066, p 5066 (2020)
Materials; Volume 13; Issue 22; Pages: 5066
Materials
Materials; Volume 13; Issue 22; Pages: 5066
Materials
In the present paper, aspects concerning the obtained and characterization of additive systems used for maximizing filler retention, and the effects on paper properties, were investigated. The effects of retention additives over properties of paper,