Sorption and Preconcentration of Vanadium, Chromium, Manganese, and Lead on Silica Gel Modified with (3‐Mercaptopropyl) Trimethoxysilane

A review on applications of nanoparticles for the preconcentration of environmental pollutants

“…Nanotechnology plays important roles in the purification or desalination of water. [152][153][154][155][156][157][158][159][160] Carbon nanotubes, nanoparticles and nanomembranes all play important roles. Carbon nanotubes have been evaluated for the sorption of 1,2-dichlorobenzene, and CeO 2 -CNTs exhibited high Cr(VI) absorption efficiency.…”

A new hybrid ion exchanger: Effect of system parameters on the adsorption of vanadium (V)

“…The adsorbent materials with bead and flake-type such as chitosan [1][2][3][4][5], chemically modified silica [6][7][8][9][10], and aluminum-pillared bentonite [11] have been widely used for the removal of vanadium ions from aqueous solution.…”

Preconcentration of Trace Arsenite and Arsenate with Titanium Dioxide Nanoparticles and Subsequent Determination by Silver Diethyldithiocarbamate Spectrophotometric Method

“…Numerous substances have been applied as solid‐phase extractants, for example, modified silica ( Dogan and Koeklue, 2006 ; Hassanien and Abou‐El‐Sherbini, 2006 ; Tikhomirova et al, 1991 ; Tong and Yoshifumi, 1990 ) and alumina ( Ghaedi et al, 2006 ; Hu et al, 2006 ), active carbon ( Bertolino et al, 2006 ; Gil et al, 2006 ; Rama and Rama, 1990 ), and cellulose ( Gurnani et al, 2003 ; Metilda et al, 2003 ). Titanium dioxide (TiO 2 ), which possesses strong affinity toward metal cations ( Hlavay et al, 1984 ; Twidwell et al, 1999 ), has been widely used as an absorbent for trace elements analysis in the recent decade ( Balaji and Matsunaga, 2002 ; Dutta et al, 2004 ; Vassileva and Hadjiivanov, 1997 ).…”