Zobrazeno 1 - 10
of 82
pro vyhledávání: '"S.E. Samra"'
Publikováno v:
Adsorption Science & Technology, Vol 21 (2003)
Batch adsorption experiments of copper(II) ions from aqueous solutions on to powdered marble wastes (PMW) have been performed. The latter is an effective inorganic sorbent which is inexpensive, widespread and may represent an environmental problem. T
Externí odkaz:
https://doaj.org/article/c925f82b306d4e479f6c4575cceb84da
Publikováno v:
Adsorption Science & Technology, Vol 19 (2001)
Different types of powdered activated carbon, viz. charcoal (PACh), graphite (PG) and three samples (PACI, PACII and PACIII) prepared from olive stones generated as plant wastes and modified with aqueous oxidizing agents, viz. H 2 O 2 , HNO 3 and (NH
Externí odkaz:
https://doaj.org/article/4d102568060a47dfb14258c296d040f5
Publikováno v:
Adsorption Science & Technology, Vol 19 (2001)
The removal of toxic copper(II) from aqueous solutions was investigated using limestone fines (LS), which are inexpensive and widespread over the globe, as the effective inorganic sorbent with oleic acid (HOL) as the surfactant. The main parameters (
Externí odkaz:
https://doaj.org/article/f0dc60d1cde44372be75756aa868eedd
Autor:
S.E. Samra
Publikováno v:
Adsorption Science & Technology, Vol 18 (2000)
Non-activated lignites were prepared by the carbonization of Egyptian lignite in a limited quantity of air at 500°C, 700°C and 900°C, respectively. Zinc chloride-activated carbons were also prepared by the carbonization of lignite with 20 wt%, 40
Externí odkaz:
https://doaj.org/article/b83f570ac51b49e898c76b0a3fcecda8
Publikováno v:
Adsorption Science & Technology, Vol 18 (2000)
Ternary vanadia–chromia/silica, molybdena–chromia/silica and nickel oxide–chromia/silica solid catalysts were prepared by the impregnation method. Their structural characteristics were examined using differential thermal analysis (DTA) and X-ra
Externí odkaz:
https://doaj.org/article/3075569dc0214b3dbf172cdf20b74602
Publikováno v:
Adsorption Science & Technology, Vol 16 (1998)
A range of NiO/Al 2 O 3 , solids (4.0–12.0 wt% Ni) was prepared by the impregnation technique. The textural properties of these solids were determined from nitrogen adsorption measurements at 77 K. Reduction of the solids with hydrogen was carried
Externí odkaz:
https://doaj.org/article/afcef8ad721043379e91115c6406e976
Publikováno v:
Adsorption Science & Technology, Vol 16 (1998)
Four chromia/silica samples containing 5–30 wt% Cr III were prepared by impregnation methods and calcined at 773–1173 K. Nickel, molybdenum and vanadium oxide-impregnated Cr 2 O 3 /SiO 2 samples were also prepared by impregnation and were subject
Externí odkaz:
https://doaj.org/article/b7bf3c20d71c462180fef7e1980c04be
Publikováno v:
Adsorption Science & Technology, Vol 12 (1995)
A technical silica gel was impregnated with a solution of the titled heteropoly acid (1–20 w/w%) and calcined at 400, 600 or 800 °C. Dehydration of the alcohol generally increased with the loaded acid, and decreased almost linearly with the reacti
Externí odkaz:
https://doaj.org/article/3590a1559d6f4e2eb8014f5aaafd243b
Autor:
Th. El-Nabarawy, S.E. Samra
Publikováno v:
Adsorption Science & Technology, Vol 11 (1994)
The sodium ions in Na-Y zeolites were partially exchanged with Li, K, Ba, Mg and Ca ions. The adsorption of benzene, carbon tetrachloride, chloroform, methanol and water vapour at 30°C has been measured on Ba-Y zeolite, while the adsorption of carbo
Externí odkaz:
https://doaj.org/article/98350ffd01c242c9b392ca75e639cebc
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 442:114800
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08a6e8f039dca4280fdafffc48d73329
https://doi.org/10.1016/j.jphotochem.2023.114800
https://doi.org/10.1016/j.jphotochem.2023.114800