1
|
Ruiz-Castillo AL, Hinojosa-Reyes M, Camposeco-Solis R, Ruiz F. Reusability in visible light of titanate nanotubes for the removal of organic pollutants: role of calcination temperature. Environ Technol 2022; 43:2081-2098. [PMID: 33332243 DOI: 10.1080/09593330.2020.1866085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 12/13/2020] [Indexed: 06/12/2023]
Abstract
Titanate nanotubes (NTs) were synthesised by the hydrothermal method and later calcined at temperatures between 100-500°C. The calcined NTs were characterised and evaluated in the physicochemical adsorption of the safranin dye and photocatalytic degradation of caffeine. The materials calcined at low temperatures displayed a tubular structure and the H2Ti3O7 crystalline phase, which was transformed into anatase nanoparticles at 400°C. The NTs treated at 100°C showed the highest adsorption capacity (94%). Safranin was adsorbed through an ion-exchange mechanism, following the Langmuir isotherm and a pseudo-second-order kinetic model. While NTs calcined at lower temperatures were better for adsorption, the photocatalytic degradation of caffeine increased in samples calcined at higher temperatures with a maximum removal of 72%. The photocatalytic behaviour of the NT samples confirmed that the crystalline anatase structure in conjunction with structural OH groups enhanced the photocatalytic activity. The addition of isopropanol as a scavenger confirmed the important role played by the •OH radicals in the photocatalytic process. NTs calcined at 300°C were efficient for both adsorption and photocatalytic processes. Due to its efficiency, this sample was reused after dye adsorption for the photocatalytic degradation of caffeine under visible light due to its enhanced absorbance in the visible region. This research work shows the potential of NTs for wastewater purification.
Collapse
Affiliation(s)
| | | | - Roberto Camposeco-Solis
- Instituto de Ciencias Aplicadas y Tecnología, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Facundo Ruiz
- Facultad de Ciencias, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
| |
Collapse
|
2
|
Camposeco R, Hinojosa-Reyes M, Castillo S, Nava N, Zanella R. Synthesis and characterization of highly dispersed bimetallic Au-Rh nanoparticles supported on titanate nanotubes for CO oxidation reaction at low temperature. Environ Sci Pollut Res Int 2021; 28:10734-10748. [PMID: 33099755 DOI: 10.1007/s11356-020-11341-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 10/20/2020] [Indexed: 06/11/2023]
Abstract
Low-temperature CO oxidation was carried out by using rhodium incorporated into titanate nanotubes (Rh/NTs) prepared by the sol-gel and hydrothermal methods; otherwise, gold nanoparticles were deposited homogeneously onto the Rh/NT surface through the deposition-precipitation with urea (DPU) method. The Au-Rh/NT sample exhibited high metal dispersion (55%), outstanding CO oxidation at low temperature, and better resistance to deactivation than the monometallic Rh/NT and Au/NT samples. The characterization of bimetallic samples, with particle sizes from 1 to 3 nm, revealed the remarkable presence of interacting Au and Rh species in metallic state. In this way, Au0 and Rh0 were answerable for the higher catalytic activity observed in the bimetallic samples. The interaction between Au and Rh in the nanoparticles of Au-Rh/NT promoted a synergistic effect on the CO oxidation reaction, explained by the creation of new CO adsorption sites.
Collapse
Affiliation(s)
- Roberto Camposeco
- Instituto de Ciencias Aplicadas y Tecnología, ICAT, Universidad Nacional Autónoma de México, UNAM, Circuito Exterior S/N, Ciudad Universitaria, 04510, Mexico City, Mexico
| | - Mariana Hinojosa-Reyes
- Faculty of Sciences, Autonomous University of San Luis Potosí, SLP, 78000, San Luis Potosí, Mexico
| | - Salvador Castillo
- Product Technology, Mexican Institute of Petroleum, 07730, Mexico City, Mexico
- Department of Chemical Engineering, ESIQIE-IPN, 75876, Mexico City, Mexico
| | - Noel Nava
- Product Technology, Mexican Institute of Petroleum, 07730, Mexico City, Mexico
| | - Rodolfo Zanella
- Instituto de Ciencias Aplicadas y Tecnología, ICAT, Universidad Nacional Autónoma de México, UNAM, Circuito Exterior S/N, Ciudad Universitaria, 04510, Mexico City, Mexico.
| |
Collapse
|
3
|
Camposeco R, Castillo S, Hinojosa-Reyes M, Mejía-Centeno I, Zanella R. Surface Acidity, Adsorption Capacity, and Photocatalytic Activity of SiO2 Supported on TiO2 Nanotubes for Rhodamine B Degradation. Top Catal 2020. [DOI: 10.1007/s11244-020-01339-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
4
|
Hinojosa-Reyes M, Camposeco Solis R, Rodríguez-González V, Ruiz F. Recycling of copper-adsorbed titanate nanotubes (TNTs) for photocatalytic hydrogen production. SEP SCI TECHNOL 2020. [DOI: 10.1080/01496395.2020.1788598] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
| | - Roberto Camposeco Solis
- Instituto De Ciencias Aplicadas Y Tecnología, Universidad Nacional Autónoma de México, México
| | - Vicente Rodríguez-González
- División De Materiales Avanzados, IPICYT, Instituto Potosino De Investigación Científica Y Tecnológica, 78216, San Luis Potosí, México
| | - Facundo Ruiz
- Facultad De Ciencias, Universidad Autónoma De San Luis Potosí, San Luis Potosí, México
| |
Collapse
|
5
|
Camposeco R, Castillo S, Hinojosa-Reyes M, Rodriguez-Gonzalez V, Nava N, Mejía-Centeno I. Pt-V2
O5
/NT and Pt-WO3
/NT Titanate Nanotubes with Strong Photocatalytic Activity under Visible Light. ChemistrySelect 2019. [DOI: 10.1002/slct.201803163] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Roberto Camposeco
- Instituto de Ciencias Aplicadas y Tecnología; Universidad Nacional Autónoma de México; 04510-Mexico City México
| | - Salvador Castillo
- Dirección de Investigación en Transformación de Hidrocarburos; Instituto Mexicano del Petróleo; 07730-México City México
- Departmento de Ingeniería Química; ESIQIE-IPN, 07738-México City; México
| | - Mariana Hinojosa-Reyes
- Facultad de Ciencias; Universidad Autónoma de San Luis Potosí, San Luis Potosí; 78000-SLP México
| | - Vicente Rodriguez-Gonzalez
- Instituto Potosino de Investigación Científica y Tecnológica; División de Materiales Avanzados, San Luis Potosí; 04510-SLP México
| | - Noel Nava
- Dirección de Investigación en Transformación de Hidrocarburos; Instituto Mexicano del Petróleo; 07730-México City México
| | - Isidro Mejía-Centeno
- Dirección de Investigación en Transformación de Hidrocarburos; Instituto Mexicano del Petróleo; 07730-México City México
| |
Collapse
|
6
|
Camposeco R, Castillo S, Hinojosa-Reyes M, Mejía-Centeno I, Zanella R. Effect of incorporating vanadium oxide to TiO2, Zeolite-ZM5, SBA and P25 supports on the photocatalytic activity under visible light. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.08.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
7
|
Camposeco R, Castillo S, Rodriguez-Gonzalez V, Hinojosa-Reyes M, Mejía-Centeno I. Tailored TiO2 nanostructures for supporting Rh3O2 and Rh0 nanoparticles: Enhanced photocatalytic H2 production. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2017.12.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
8
|
Hinojosa-Reyes M, Camposeco-Solis R, Zanella R, Rodríguez-González V, Ruiz F. Gold Nanoparticle: Enhanced CO Oxidation at Low Temperatures by Using Fe-Doped TiO2 as Support. Catal Letters 2017. [DOI: 10.1007/s10562-017-2260-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
9
|
Hinojosa-Reyes M, Camposeco-Solís R, Zanella R, Rodríguez González V. Hydrogen production by tailoring the brookite and Cu 2O ratio of sol-gel Cu-TiO 2 photocatalysts. Chemosphere 2017; 184:992-1002. [PMID: 28658742 DOI: 10.1016/j.chemosphere.2017.06.066] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 05/10/2017] [Accepted: 06/15/2017] [Indexed: 06/07/2023]
Abstract
Cu-TiO2 photocatalysts were prepared by the sol-gel method. Copper loadings from, 1.0 to 5.0 wt % were used. The materials were annealed at different temperatures (from 400 to 600 °C) to study the formation of brookite and copper ionic species. The photocatalysts were characterized by X-ray diffraction, UV-vis, Raman and XPS spectroscopies, H2-temperature programmed reduction (TPR), N2 physisorption, and SEM-EDS to quantify the actual copper loadings and characterize morphology. The photocatalysts were evaluated during the hydrogen photocatalytic production using an ethanolic solution (50% v/v) under UV and visible radiation. The best hydrogen production was performed by Ti-Cu 1.0 with an overall hydrogen production that was five times higher than that obtained with photolysis. This sample had an optimal thermal treatment at 500 °C, and at this temperature, the Cu2O and brookite/anatase ratio boosted the photocatalytic production of hydrogen. In addition, a deactivation test was carried out for the most active sample (TiO2-Cu 1.0), showing unchanged H2 production for three cycles with negligible Cu lixiviation. The activity of hydrogen-through-copper production reported in this research work is comparable with the one featured by noble metals and that reported in the literature for doped TiO2 materials.
Collapse
Affiliation(s)
- Mariana Hinojosa-Reyes
- Facultad de Ciencias, Universidad Autónoma de San Luis Potosí, San Luis Potosí, S.L.P., 78000, México, Mexico.
| | - Roberto Camposeco-Solís
- División de Materiales Avanzados, IPICYT, Instituto Potosino de Investigación Científica y Tecnológica, Camino a la Presa San José 2055, Col. Lomas 4a. sección, C.P. 78216, San Luis Potosí, S.L.P., Mexico
| | - Rodolfo Zanella
- Centro de Ciencias Aplicadas y Desarrollo Tecnológico, Universidad Nacional Autónoma de México, Circuito Exterior S/N, Ciudad Universitaria, A. P. 70-186, Delegación Coyoacán, C.P. 04510, México D. F., Mexico
| | - Vicente Rodríguez González
- División de Materiales Avanzados, IPICYT, Instituto Potosino de Investigación Científica y Tecnológica, Camino a la Presa San José 2055, Col. Lomas 4a. sección, C.P. 78216, San Luis Potosí, S.L.P., Mexico
| |
Collapse
|
10
|
Hinojosa-Reyes M, Hernández-Gordillo A, Zanella R, Rodríguez-González V. Renewable hydrogen harvest process by hydrazine as scavenging electron donor using gold TiO2 photocatalysts. Catal Today 2016. [DOI: 10.1016/j.cattod.2015.10.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
11
|
Hinojosa-Reyes M, Rodríguez-González V, Zanella R. Gold nanoparticles supported on TiO2–Ni as catalysts for hydrogen purification via water–gas shift reaction. RSC Adv 2014. [DOI: 10.1039/c3ra45764h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
12
|
Hinojosa-Reyes M, Rodríguez-González V, Arriaga S. Enhancing ethylbenzene vapors degradation in a hybrid system based on photocatalytic oxidation UV/TiO2-In and a biofiltration process. J Hazard Mater 2012; 209-210:365-371. [PMID: 22296707 DOI: 10.1016/j.jhazmat.2012.01.035] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2011] [Revised: 12/08/2011] [Accepted: 01/10/2012] [Indexed: 05/31/2023]
Abstract
The use of hybrid processes for the continuous degradation of ethylbenzene (EB) vapors has been evaluated. The hybrid system consists of an UV/TiO(2)-In photooxidation coupled with a biofiltration process. Both the photocatalytic system using P25-Degussa or indium-doped TiO(2) catalysts and the photolytic process were performed at UV-wavelengths of 254 nm and 365 nm. The experiments were carried out in an annular plug flow photoreactor packed with granular perlite previously impregnated with the catalysts, and in a glass biofilter packed with perlite and inoculated with a microbial consortium. Both reactors were operated at an inlet loading rate of 127 g m(-3)h(-1). The greatest degradation rate of EB (0.414 ng m(-2)min(-1)) was obtained with the TiO(2)-In 1%/365 nm photocatalytic system. The elimination capacity (EC) obtained in the control biofilter had values ≈ 60 g m(-3)h(-1). Consequently, the coupled system was operated for 15 days, and a maximal EC of 275 g m(-3)h(-1). Thus, the results indicate that the use of hybrid processes enhanced the EB vapor degradation and that this could be a promising technology for the abatement of recalcitrant volatile organic compounds.
Collapse
Affiliation(s)
- M Hinojosa-Reyes
- Instituto Potosino de Investigación Científica y Tecnológica A.C., División de Ciencias Ambientales, Camino a la Presa San José 2055, Lomas 4(a) sección, CP. 78216, San Luis Potosí, S.L.P., Mexico
| | | | | |
Collapse
|