Column adsorption studies on copper (II) ion removal from aqueous solution using natural biogenic iron oxide

2019 ◽  
Vol 153 ◽  
pp. 216-225 ◽  
Author(s):  
Brij Kishor ◽  
Nekram Rawal
Keyword(s):  
Aqueous Solution ◽  
Iron Oxide ◽  
Adsorption Studies ◽  
Ion Removal ◽  
Column Adsorption ◽  
Biogenic Iron

Adsorption studies on copper, cadmium, and zinc ion removal from aqueous solution using magnetite/carbon nanocomposites

2018 ◽  
Vol 53 (15) ◽  
pp. 2352-2364 ◽  
Author(s):  
Adelina Andelescu ◽  
Maria Andreea Nistor ◽  
Simona Gabriela Muntean ◽  
Maria Elena Rădulescu-Grad
Keyword(s):  
Aqueous Solution ◽  
Zinc Ion ◽  
Carbon Nanocomposites ◽  
Adsorption Studies ◽  
Ion Removal

TEM observation of iron oxide pillars in montmorillonite

1990 ◽  
Vol 48 (4) ◽  
pp. 882-883
Author(s):  
H. Mori ◽  
Y. Murata ◽  
H. Yoneyama ◽  
H. Fujita
Keyword(s):  
Aqueous Solution ◽  
Iron Oxide ◽  
Fine Particles ◽  
Aqueous Suspension ◽  
Volume Ratio ◽  
Exchange Capacity ◽  
Nano Composites ◽  
Pillared Montmorillonite ◽  
Topographic Features ◽  
Transmission Electron

Recently, a new sort of nano-composites has been prepared by incorporating such fine particles as metal oxide microcrystallites and organic polymers into the interlayer space of montmorillonite. Owing to their extremely large specific surface area, the nano-composites are finding wide application[1∼3]. However, the topographic features of the microstructures have not been elucidated as yet In the present work, the microstructures of iron oxide-pillared montmorillonite have been investigated by high-resolution transmission electron microscopy.Iron oxide-pillared montmorillonite was prepared through the procedure essentially the same as that reported by Yamanaka et al. Firstly, 0.125 M aqueous solution of trinuclear acetato-hydroxo iron(III) nitrate, [Fe3(OCOCH3)7 OH.2H2O]NO3, was prepared and then the solution was mixed with an aqueous suspension of 1 wt% clay by continuously stirring at 308 K. The final volume ratio of the latter aqueous solution to the former was 0.4. The clay used was sodium montmorillonite (Kunimine Industrial Co.), having a cation exchange capacity of 100 mequiv/100g. The montmorillonite in the mixed suspension was then centrifuged, followed by washing with deionized water. The washed samples were spread on glass plates, air dried, and then annealed at 673 K for 72 ks in air. The resultant film products were approximately 20 μm in thickness and brown in color.

Adsorption Studies of Basic Green 4 from Aqueous Solution on Ca2+Exchanged Clay

2011 ◽  
Vol 48 (5) ◽  
pp. 366-374 ◽  
Author(s):  
F. K. Bangash ◽  
S. Alam ◽  
M. Khan
Keyword(s):  
Aqueous Solution ◽  
Adsorption Studies
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