Elevated concentrations of arsenic in groundwater, which is used as a source for drinking water, is a worldwide problem. Use of TiO2 and iron doped TiO2 synthesized by a microwave-assisted hydrothermal method for As(III) and As(V) removal were examined. Synthesized sorbents were characterized with XRD and nitrogen physisorption. Synthesized sorbents have predominantly anatase structure, and no peaks for iron could be observed. Doping of iron increases the surface area of synthesized sorbents. Sorption experiments show that increase of iron in sorbents increases the sorption capacity for As(III) and As(V). Increase of pH from 3 to 11 has no influence on As(III) sorption but decreases the sorption of As(V). Batch isotherm studies were performed to determine the binding capacities of As(III) and As(V). As(III) followed the Freundlich isotherm model, while for As(V) a better fit was with the Langmuir isotherm. The results of competition of SO42- and PO43- anions on adsorption of As(III) in...dicated that both anions reduced substantially the efficiency of adsorption on both adsorbents while for As(V) only the presence of PO43- anion interfered with adsorption. Testing 10Fe/TiO2 sorbent with arsenic contaminated natural water showed that this material could be used for removal of arsenic to the level recommended by WHO without pretreatment.
Source:
Industrial and Engineering Chemistry Research, 2014, 53, 27, 10841-10848
TY - JOUR
AU - Anđelković, Ivan
AU - Stanković, Dalibor
AU - Nesic, Jelena
AU - Krstić, Jugoslav
AU - Vulić, Predrag
AU - Manojlović, Dragan
AU - Roglić, Goran
PY - 2014
UR - http://cer.ihtm.bg.ac.rs/handle/123456789/1597
AB - Elevated concentrations of arsenic in groundwater, which is used as a source for drinking water, is a worldwide problem. Use of TiO2 and iron doped TiO2 synthesized by a microwave-assisted hydrothermal method for As(III) and As(V) removal were examined. Synthesized sorbents were characterized with XRD and nitrogen physisorption. Synthesized sorbents have predominantly anatase structure, and no peaks for iron could be observed. Doping of iron increases the surface area of synthesized sorbents. Sorption experiments show that increase of iron in sorbents increases the sorption capacity for As(III) and As(V). Increase of pH from 3 to 11 has no influence on As(III) sorption but decreases the sorption of As(V). Batch isotherm studies were performed to determine the binding capacities of As(III) and As(V). As(III) followed the Freundlich isotherm model, while for As(V) a better fit was with the Langmuir isotherm. The results of competition of SO42- and PO43- anions on adsorption of As(III) indicated that both anions reduced substantially the efficiency of adsorption on both adsorbents while for As(V) only the presence of PO43- anion interfered with adsorption. Testing 10Fe/TiO2 sorbent with arsenic contaminated natural water showed that this material could be used for removal of arsenic to the level recommended by WHO without pretreatment.
PB - American Chemical Society (ACS)
T2 - Industrial and Engineering Chemistry Research
T1 - Fe Doped TiO2 Prepared by Microwave-Assisted Hydrothermal Process for Removal of As(III) and As(V) from Water
VL - 53
IS - 27
SP - 10841
EP - 10848
DO - 10.1021/ie500849r
ER -
@article{
author = "Anđelković, Ivan and Stanković, Dalibor and Nesic, Jelena and Krstić, Jugoslav and Vulić, Predrag and Manojlović, Dragan and Roglić, Goran",
year = "2014",
url = "http://cer.ihtm.bg.ac.rs/handle/123456789/1597",
abstract = "Elevated concentrations of arsenic in groundwater, which is used as a source for drinking water, is a worldwide problem. Use of TiO2 and iron doped TiO2 synthesized by a microwave-assisted hydrothermal method for As(III) and As(V) removal were examined. Synthesized sorbents were characterized with XRD and nitrogen physisorption. Synthesized sorbents have predominantly anatase structure, and no peaks for iron could be observed. Doping of iron increases the surface area of synthesized sorbents. Sorption experiments show that increase of iron in sorbents increases the sorption capacity for As(III) and As(V). Increase of pH from 3 to 11 has no influence on As(III) sorption but decreases the sorption of As(V). Batch isotherm studies were performed to determine the binding capacities of As(III) and As(V). As(III) followed the Freundlich isotherm model, while for As(V) a better fit was with the Langmuir isotherm. The results of competition of SO42- and PO43- anions on adsorption of As(III) indicated that both anions reduced substantially the efficiency of adsorption on both adsorbents while for As(V) only the presence of PO43- anion interfered with adsorption. Testing 10Fe/TiO2 sorbent with arsenic contaminated natural water showed that this material could be used for removal of arsenic to the level recommended by WHO without pretreatment.",
publisher = "American Chemical Society (ACS)",
journal = "Industrial and Engineering Chemistry Research",
title = "Fe Doped TiO2 Prepared by Microwave-Assisted Hydrothermal Process for Removal of As(III) and As(V) from Water",
volume = "53",
number = "27",
pages = "10841-10848",
doi = "10.1021/ie500849r"
}
Anđelković, I., Stanković, D., Nesic, J., Krstić, J., Vulić, P., Manojlović, D.,& Roglić, G. (2014). Fe Doped TiO2 Prepared by Microwave-Assisted Hydrothermal Process for Removal of As(III) and As(V) from Water.
Industrial and Engineering Chemistry Research
American Chemical Society (ACS)., 53(27), 10841-10848.
https://doi.org/10.1021/ie500849r
Anđelković I, Stanković D, Nesic J, Krstić J, Vulić P, Manojlović D, Roglić G. Fe Doped TiO2 Prepared by Microwave-Assisted Hydrothermal Process for Removal of As(III) and As(V) from Water. Industrial and Engineering Chemistry Research. 2014;53(27):10841-10848
Anđelković Ivan, Stanković Dalibor, Nesic Jelena, Krstić Jugoslav, Vulić Predrag, Manojlović Dragan, Roglić Goran, "Fe Doped TiO2 Prepared by Microwave-Assisted Hydrothermal Process for Removal of As(III) and As(V) from Water" Industrial and Engineering Chemistry Research, 53, no. 27 (2014):10841-10848,
https://doi.org/10.1021/ie500849r .
