Synthesis of anatase nanopowders by sol-gel method and photocatalytic degradation of the pure active substance and commercial product of herbicide clomazone
Authors
Golubović, AleksandarSimović, Bojana
Gasic, Slavica
Mijin, Dušan
Matković, Aleksandar
Babic, Biljana
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TiO2 nanopowders were produced by sol-gel technique using TiCl4 as the starting
material. For the preparation of anatase crystalline, this aqueous solution was the mixed with
0.05 M and 0.07 M (NH4)2SO4 solution in a temperature-controlled bath. PH values of the
solutions were 7, 8 and 9, respectively. Structural, morphological and surface properties of
synthesized TiO2 nanopowders were investigated by XRD, SEM, and BET measurements.
The crystallite sizes determined by XRD measurements had range about 12 nm, and this was
confirmed by SEM. The photocatalytic degradation of the pure active substance and commercial product (GAMIT 4-EC) of herbicide clomazone (0.05 mM) in aqueous
suspensions of synthesized and commercial (Degussa P25) TiO2 were examined under UV
radiation. In all experiments the concentration of the catalyst was 0.50 mg mL-1. BET
measurements revealed that all synthesized catalyst had mesoporous structure, except the
sample synthesized with 0.07 M (NH4)2SO4 and a...t pH of solution 9 that had small amount of
micropores. This sample had the best photocatalytic properties, even better than commercial
Degussa P25, and the reason of that is rather the biggest porosity than the combination of
micro- and mesoporosity.
Keywords:
Sol-gel method / Anatase / Nanopowders / Photocatalytic degradation / Herbicide clomazoneSource:
The Fourth Serbian Ceramic Society Conference, Advanced Ceramics and Applications, Serbian Ceramic Society, Serbia, 2015, 72-73Publisher:
- Serbian Ceramic Society, Belgrade
Funding / projects:
- Nanostructured multifunctional materials and nanocomposites (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45018)
- Zero- to Three-Dimensional Nanostructures for Application in Electronics and Renewable Energy Sources: Synthesis, Characterization and Processing (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45007)
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Institution/Community
Institut za multidisciplinarna istraživanjaTY - CONF AU - Golubović, Aleksandar AU - Simović, Bojana AU - Gasic, Slavica AU - Mijin, Dušan AU - Matković, Aleksandar AU - Babic, Biljana PY - 2015 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/3092 AB - TiO2 nanopowders were produced by sol-gel technique using TiCl4 as the starting material. For the preparation of anatase crystalline, this aqueous solution was the mixed with 0.05 M and 0.07 M (NH4)2SO4 solution in a temperature-controlled bath. PH values of the solutions were 7, 8 and 9, respectively. Structural, morphological and surface properties of synthesized TiO2 nanopowders were investigated by XRD, SEM, and BET measurements. The crystallite sizes determined by XRD measurements had range about 12 nm, and this was confirmed by SEM. The photocatalytic degradation of the pure active substance and commercial product (GAMIT 4-EC) of herbicide clomazone (0.05 mM) in aqueous suspensions of synthesized and commercial (Degussa P25) TiO2 were examined under UV radiation. In all experiments the concentration of the catalyst was 0.50 mg mL-1. BET measurements revealed that all synthesized catalyst had mesoporous structure, except the sample synthesized with 0.07 M (NH4)2SO4 and at pH of solution 9 that had small amount of micropores. This sample had the best photocatalytic properties, even better than commercial Degussa P25, and the reason of that is rather the biggest porosity than the combination of micro- and mesoporosity. PB - Serbian Ceramic Society, Belgrade C3 - The Fourth Serbian Ceramic Society Conference, Advanced Ceramics and Applications, Serbian Ceramic Society, Serbia T1 - Synthesis of anatase nanopowders by sol-gel method and photocatalytic degradation of the pure active substance and commercial product of herbicide clomazone EP - 73 SP - 72 UR - https://hdl.handle.net/21.15107/rcub_rimsi_3092 ER -
@conference{ author = "Golubović, Aleksandar and Simović, Bojana and Gasic, Slavica and Mijin, Dušan and Matković, Aleksandar and Babic, Biljana", year = "2015", abstract = "TiO2 nanopowders were produced by sol-gel technique using TiCl4 as the starting material. For the preparation of anatase crystalline, this aqueous solution was the mixed with 0.05 M and 0.07 M (NH4)2SO4 solution in a temperature-controlled bath. PH values of the solutions were 7, 8 and 9, respectively. Structural, morphological and surface properties of synthesized TiO2 nanopowders were investigated by XRD, SEM, and BET measurements. The crystallite sizes determined by XRD measurements had range about 12 nm, and this was confirmed by SEM. The photocatalytic degradation of the pure active substance and commercial product (GAMIT 4-EC) of herbicide clomazone (0.05 mM) in aqueous suspensions of synthesized and commercial (Degussa P25) TiO2 were examined under UV radiation. In all experiments the concentration of the catalyst was 0.50 mg mL-1. BET measurements revealed that all synthesized catalyst had mesoporous structure, except the sample synthesized with 0.07 M (NH4)2SO4 and at pH of solution 9 that had small amount of micropores. This sample had the best photocatalytic properties, even better than commercial Degussa P25, and the reason of that is rather the biggest porosity than the combination of micro- and mesoporosity.", publisher = "Serbian Ceramic Society, Belgrade", journal = "The Fourth Serbian Ceramic Society Conference, Advanced Ceramics and Applications, Serbian Ceramic Society, Serbia", title = "Synthesis of anatase nanopowders by sol-gel method and photocatalytic degradation of the pure active substance and commercial product of herbicide clomazone", pages = "73-72", url = "https://hdl.handle.net/21.15107/rcub_rimsi_3092" }
Golubović, A., Simović, B., Gasic, S., Mijin, D., Matković, A.,& Babic, B.. (2015). Synthesis of anatase nanopowders by sol-gel method and photocatalytic degradation of the pure active substance and commercial product of herbicide clomazone. in The Fourth Serbian Ceramic Society Conference, Advanced Ceramics and Applications, Serbian Ceramic Society, Serbia Serbian Ceramic Society, Belgrade., 72-73. https://hdl.handle.net/21.15107/rcub_rimsi_3092
Golubović A, Simović B, Gasic S, Mijin D, Matković A, Babic B. Synthesis of anatase nanopowders by sol-gel method and photocatalytic degradation of the pure active substance and commercial product of herbicide clomazone. in The Fourth Serbian Ceramic Society Conference, Advanced Ceramics and Applications, Serbian Ceramic Society, Serbia. 2015;:72-73. https://hdl.handle.net/21.15107/rcub_rimsi_3092 .
Golubović, Aleksandar, Simović, Bojana, Gasic, Slavica, Mijin, Dušan, Matković, Aleksandar, Babic, Biljana, "Synthesis of anatase nanopowders by sol-gel method and photocatalytic degradation of the pure active substance and commercial product of herbicide clomazone" in The Fourth Serbian Ceramic Society Conference, Advanced Ceramics and Applications, Serbian Ceramic Society, Serbia (2015):72-73, https://hdl.handle.net/21.15107/rcub_rimsi_3092 .