Citation:

JEGADEESAN, G., V. SUNDARAM, H. CHOI, D. D. DIONYSIOU, AND S. R. AL-ABED. ARSENIC REMOVAL USING SOL-GEL SYNTHESIZED TITANIUM DIOXIDE NANOPARTICLES. Presented at 232^ND American Chemical Society National Meeting, San Francisco, CA, September 10 - 14, 2006.

Impact/Purpose:

to present information

Description:

In this study, the effectiveness of TiO₂ nanoparticles in arsenic adsorption was examined. TiO₂ particles (LS) were synthesized via sol-gel techniques and characterized for their crystallinity, surface area and pore volume. Batch adsorption studies were performed using TiO₂ particles in 0.01 N NaCl solution spiked with arsenic (III) and arsenic (V) and results compared to those obtained using commercially available nanocrystalline TiO₂ (HG). The removal of As(V) and As (III) reached equilibrium within 24 h for LS-TiO₂ and the adsorption kinetics were described by shifting order kinetics. Adsorption capacities of LS-TiO₂ were higher than HG-TiO₂ on a per gram basis. The effect of pH, initial arsenic concentration, particle surface area and presence of natural light was also investigated.

Record Details:

Record Type:DOCUMENT( PRESENTATION/ EXTENDED ABSTRACT)

Product Published Date:09/13/2006

Record Last Revised:02/06/2008

OMB Category:Other

Record ID: 157428

Show Additional Record Data