Precipitation Equilibria of the Chromium(VI)/Iron(III) System and Spectrospcopic Characterization of the Precipitates

1997 ◽  
Vol 31 (10) ◽  
pp. 2898-2902 ◽  
Author(s):  
M. A. Olazabal ◽  
N. P. Nikolaidis ◽  
S. A. Suib ◽  
J. M. Madariaga
Keyword(s):  
Chromium Vi

scholarly journals Isolation and Characterization of Chromium(VI)-Reducing Bacteria from Tannery Effluents

2011 ◽  
Vol 51 (1) ◽  
pp. 76-81 ◽  
Author(s):  
Mohammad Ilias ◽  
Iftekhar Md. Rafiqullah ◽  
Bejoy Chandra Debnath ◽  
Khanjada Shahnewaj Bin Mannan ◽  
Md. Mozammel Hoq
Keyword(s):  
Tannery Effluents ◽  
Chromium Vi ◽  
Isolation And Characterization ◽  
Reducing Bacteria

Synthesis and characterization of polyurethane-cellulose acetate blend membrane for chromium (VI) removal

2016 ◽  
Vol 153 ◽  
pp. 582-591 ◽  
Author(s):  
Tabinda Riaz ◽  
Adnan Ahmad ◽  
Sidra Saleemi ◽  
Muhammad Adrees ◽  
Fahad Jamshed ◽  
...  
Keyword(s):  
Cellulose Acetate ◽  
Synthesis And Characterization ◽  
Blend Membrane ◽  
Chromium Vi

scholarly journals Adsorption of Chromium(VI) Ions on to TiO2 from Aqueous Solution

1998 ◽  
Vol 16 (2) ◽  
pp. 117-126 ◽  
Author(s):  
Fu Hongxiang ◽  
Lu Gongxuan ◽  
Li Shuben
Keyword(s):  
Heavy Metal Ions ◽  
Ion Concentration ◽  
Spectroscopic Methods ◽  
Ion Adsorption ◽  
Adsorption Efficiency ◽  
Organic Species ◽  
Chromium Vi ◽  
Ft Ir ◽  
Ir Spectroscopic

The study of the adsorption of the CrVI ion on to TiO2 not only provides information on the removal of heavy metal ions from polluted aqueous solutions; but is also useful for further investigation of the photocatalytic decontamination of the CrVI ion or of CrVI–organic species which co-exist as pollutants with TiO2 when the latter is used as a stable and highly efficient photocatalyst. It has been found that dark adsorption of the CrVI ion on to TiO2 is mainly dependent on the acidity of the system and the initial concentration of the CrVI ion. As the pH of the system increases, so the extent of adsorption of the CrVI ion decreases. The greatest adsorption was obtained with an initial CrVI ion concentration of ca. 300 μmol/l. The presence of phosphate or acetate ions in the system dramatically decreases the adsorption efficiency of the CrVI ion. In contrast, the addition of formic acid leads to a limited increase in the extent of CrVI ion adsorption. Other organic ions and organic compounds examined showed no interference in CrVI ion adsorption. FT-IR spectroscopic methods were used for the characterization of CrVI ion adsorption on to TiO2.

Preparation and characterization of amino-functionalized nano-Fe3O4 magnetic polymer adsorbents for removal of chromium(VI) ions

2010 ◽  
Vol 45 (19) ◽  
pp. 5291-5301 ◽  
Author(s):  
Yong-Gang Zhao ◽  
Hao-Yu Shen ◽  
Sheng-Dong Pan ◽  
Mei-Qin Hu ◽  
Qing-Hua Xia
Keyword(s):  
Chromium Vi ◽  
Nano Fe3o4

ChemInform Abstract: CHARACTERIZATION OF CHROMIUM(VI) OXIDE TETRAFLUORIDE, CROF4, AND CESIUM PENTAFLUOROOXOCHROMATE(VI) CS(CROF5)

1985 ◽  
Vol 16 (24) ◽  
Author(s):  
E. G. HOPE ◽  
P. J. JONES ◽  
W. LEVASON ◽  
J. S. OGDEN ◽  
M. TAJIK ◽  
...  
Keyword(s):  
Abstract Characterization ◽  
Chromium Vi

Spectroscopic characterization of the reduction and removal of chromium (VI) by tropical peat and humin

Fuel ◽  
2012 ◽  
Vol 91 (1) ◽  
pp. 141-146 ◽  
Author(s):  
S. da C.A. Cerqueira ◽  
L.P.C. Romão ◽  
S.C.O. Lucas ◽  
L.E. Fraga ◽  
M.L. Simões ◽  
...  
Keyword(s):  
Spectroscopic Characterization ◽  
Tropical Peat ◽  
Chromium Vi
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