TY  - JOUR
AU  - Novack, Aline M.
AU  - dos Reis, Glaydson S.
AU  - Hackbarth, Fabiola, V
AU  - Marinho, Belisa A.
AU  - Đolić, Maja
AU  - Valle, Jose A. B.
AU  - Sampaio, Carlos H.
AU  - Lima, Eder C.
AU  - Dotto, Guillherme L.
AU  - Ulson de Souza, Antonio Augusto
AU  - Vilar, Vitor J. P.
AU  - Guelli Ulson de Souza, Selene M. A.
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/19
AB  - This paper presents the synthesis of a hybrid material through the use of natural pozzolan and titanium(IV) isopropoxide using the sol-gel method and its application in the photocatalytic hexavalent chromium reduction. The characterization data indicated a mesoporous material possessing a surface area of 271.7 m(2) g(-1). The morphology studies (SEM and TEM) showed nanosheet hybrid structures. The analysis of DRUV, FTIR, XRD, and Mossbauer spectroscopy provides a different electronic structure of the synthetized material when compared with the originals, proving the hybridization process between pozzolan and titanium(IV) isopropoxide. The photocatalytic reduction of Cr(VI) to Cr(III) using the hybrid material showed a better performance than conventional photocatalysts (precursor and TiO2-P25). Operational conditions such as chromium initial concentration (0.02-0.20 mM), solution pH (3-6), and type of scavenger (citric or tartaric acid) were evaluated in order to determine the best experimental conditions for the Cr(VI) photoreduction. At their optimum (catalyst load of 15 mg L-1, tartaric acid as scavenger, [scavenger](0)/[Cr(VI)](0) M ratio = 3:1, pH 3, and 25 degrees C), the total photoreduction of 0.20 mM Cr(VI) was achieved in 180 min. The novel hybrid materials synthesized from pozzolan and titanium(IV) isopropoxide showed to be a potential catalyst for the Cr(VI) reduction in aqueous solution.
PB  - Springer Heidelberg, Heidelberg
T2  - Environmental Science and Pollution Research
T1  - Facile fabrication of hybrid titanium(IV) isopropoxide/pozzolan nanosheets (TnS-Pz) of high photocatalytic activity: characterization and application for Cr(VI) reduction in an aqueous solution
EP  - 23581
IS  - 19
SP  - 23568
VL  - 28
DO  - 10.1007/s11356-020-09178-1
ER  - 

@article{
author = "Novack, Aline M. and dos Reis, Glaydson S. and Hackbarth, Fabiola, V and Marinho, Belisa A. and Đolić, Maja and Valle, Jose A. B. and Sampaio, Carlos H. and Lima, Eder C. and Dotto, Guillherme L. and Ulson de Souza, Antonio Augusto and Vilar, Vitor J. P. and Guelli Ulson de Souza, Selene M. A.",
year = "2021",
abstract = "This paper presents the synthesis of a hybrid material through the use of natural pozzolan and titanium(IV) isopropoxide using the sol-gel method and its application in the photocatalytic hexavalent chromium reduction. The characterization data indicated a mesoporous material possessing a surface area of 271.7 m(2) g(-1). The morphology studies (SEM and TEM) showed nanosheet hybrid structures. The analysis of DRUV, FTIR, XRD, and Mossbauer spectroscopy provides a different electronic structure of the synthetized material when compared with the originals, proving the hybridization process between pozzolan and titanium(IV) isopropoxide. The photocatalytic reduction of Cr(VI) to Cr(III) using the hybrid material showed a better performance than conventional photocatalysts (precursor and TiO2-P25). Operational conditions such as chromium initial concentration (0.02-0.20 mM), solution pH (3-6), and type of scavenger (citric or tartaric acid) were evaluated in order to determine the best experimental conditions for the Cr(VI) photoreduction. At their optimum (catalyst load of 15 mg L-1, tartaric acid as scavenger, [scavenger](0)/[Cr(VI)](0) M ratio = 3:1, pH 3, and 25 degrees C), the total photoreduction of 0.20 mM Cr(VI) was achieved in 180 min. The novel hybrid materials synthesized from pozzolan and titanium(IV) isopropoxide showed to be a potential catalyst for the Cr(VI) reduction in aqueous solution.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Environmental Science and Pollution Research",
title = "Facile fabrication of hybrid titanium(IV) isopropoxide/pozzolan nanosheets (TnS-Pz) of high photocatalytic activity: characterization and application for Cr(VI) reduction in an aqueous solution",
pages = "23581-23568",
number = "19",
volume = "28",
doi = "10.1007/s11356-020-09178-1"
}

Novack, A. M., dos Reis, G. S., Hackbarth, F. V., Marinho, B. A., Đolić, M., Valle, J. A. B., Sampaio, C. H., Lima, E. C., Dotto, G. L., Ulson de Souza, A. A., Vilar, V. J. P.,& Guelli Ulson de Souza, S. M. A.. (2021). Facile fabrication of hybrid titanium(IV) isopropoxide/pozzolan nanosheets (TnS-Pz) of high photocatalytic activity: characterization and application for Cr(VI) reduction in an aqueous solution. in Environmental Science and Pollution Research
Springer Heidelberg, Heidelberg., 28(19), 23568-23581.
https://doi.org/10.1007/s11356-020-09178-1

Novack AM, dos Reis GS, Hackbarth FV, Marinho BA, Đolić M, Valle JAB, Sampaio CH, Lima EC, Dotto GL, Ulson de Souza AA, Vilar VJP, Guelli Ulson de Souza SMA. Facile fabrication of hybrid titanium(IV) isopropoxide/pozzolan nanosheets (TnS-Pz) of high photocatalytic activity: characterization and application for Cr(VI) reduction in an aqueous solution. in Environmental Science and Pollution Research. 2021;28(19):23568-23581.
doi:10.1007/s11356-020-09178-1 .

Novack, Aline M., dos Reis, Glaydson S., Hackbarth, Fabiola, V, Marinho, Belisa A., Đolić, Maja, Valle, Jose A. B., Sampaio, Carlos H., Lima, Eder C., Dotto, Guillherme L., Ulson de Souza, Antonio Augusto, Vilar, Vitor J. P., Guelli Ulson de Souza, Selene M. A., "Facile fabrication of hybrid titanium(IV) isopropoxide/pozzolan nanosheets (TnS-Pz) of high photocatalytic activity: characterization and application for Cr(VI) reduction in an aqueous solution" in Environmental Science and Pollution Research, 28, no. 19 (2021):23568-23581,
https://doi.org/10.1007/s11356-020-09178-1 . .