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Barrera A, Tzompantzi F, Campa-Molina J, Casillas JE, Pérez-Hernández R, Ulloa-Godinez S, Velásquez C, Arenas-Alatorre J. Photocatalytic activity of Ag/Al 2O 3-Gd 2O 3 photocatalysts prepared by the sol-gel method in the degradation of 4-chlorophenol. RSC Adv 2018; 8:3108-3119. [PMID: 35541204 PMCID: PMC9077698 DOI: 10.1039/c7ra12665d] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 12/30/2017] [Indexed: 11/23/2022] Open
Abstract
The photocatalytic activity in the degradation of 4-chlorophenol (4-ClPh) in aqueous medium (80 ppm) using 2.0 wt% Ag/Al2O3-Gd2O3 (Ag/Al-Gd-x; where x = 2.0, 5.0, 15.0, 25.0 and 50.0 wt% of Gd2O3) photocatalysts prepared by the sol-gel method was studied under UV light irradiation. The photocatalysts were characterized by N2 physisorption, X-ray diffraction, SEM, HRTEM, UV-Vis, XPS, FTIR and fluorescence spectroscopy. About 67.0% of 4-ClPh was photoconverted after 4 h of UV light irradiation using Ag/γ--Al2O3. When Ag/Al-Gd-x photocatalysts were tested, the 4-ClPh photoconversion was improved and more than 90.0% of 4-ClPh was photoconverted after 3 h of UV light irradiation in the materials containing 15.0 and 25.0 wt% of Gd2O3. Ag/Al-Gd-25 was the material with the highest efficacy to mineralize dissolved organic carbon, mineralizing more than 85.0% after 4 h of UV light irradiation. Silver nanoparticles and micro-particles of irregular pentagonal shape intersected by plane nanobelts of Al2O3-Gd2O3 composite oxide were detected in the Ag/Al-Gd-25 photocatalyst. This material is characterized by a lowest recombination rate of electron-hole pairs. The low recombination rate of photo-induced electron-hole pairs in the Ag/Al-Gd-x photocatalysts with high Gd2O3 contents (≥15.0 wt%) confirmes that the presence of silver nanoparticles and microparticles interacting with Al2O3-Gd2O3 composite oxide entities favors the separation of photo-induced charges (e- and h+). These materials could be appropriate to be used as highly efficient photocatalysts to eliminate high concentrations of 4-ClPh in aqueous medium.
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Affiliation(s)
- A Barrera
- Laboratorio de Nanomateriales Catalíticos, Centro Universitario de la Ciénega, Universidad de Guadalajara, Av. Universidad No. 1115, Col. Linda Vista C.P. 47820 Ocotlán Jalisco México +52 392 92 594 00
| | - F Tzompantzi
- Depto. de Química, Área de Catálisis, Universidad Autónoma Metropolitana - Iztapalapa Av. San Rafael Atlixco 189 C.P. 09340 Cd. de México México
| | - J Campa-Molina
- Laboratorio de Materiales Avanzados, Universidad de Guadalajara Depto. De Electrónica Blvd. Marcelino García Barragán 1422 esq. Calzada Olímpica, Col. Olímpica 44430 Guadalajara Jalisco México
| | - J E Casillas
- Laboratorio de Nanomateriales Catalíticos, Centro Universitario de la Ciénega, Universidad de Guadalajara, Av. Universidad No. 1115, Col. Linda Vista C.P. 47820 Ocotlán Jalisco México +52 392 92 594 00
| | - R Pérez-Hernández
- Laboratorio de Nanocatálisis, Depto. de Tecnología de Materiales, Instituto Nacional de Investigaciones Nucleares Carr. México-Toluca S/N, La Marquesa, Ocoyoacac Edo. De México C.P. 52750 México
| | - S Ulloa-Godinez
- Laboratorio de Materiales Avanzados, Universidad de Guadalajara Depto. De Electrónica Blvd. Marcelino García Barragán 1422 esq. Calzada Olímpica, Col. Olímpica 44430 Guadalajara Jalisco México
| | - C Velásquez
- Centro de Investigación en Nanociencia y Nanotecnología, Centro Universitario de los Valles, Universidad de Guadalajara Ameca Jalisco 46600 México
| | - J Arenas-Alatorre
- Universidad Nacional Autónoma de México, Instituto de Física México D.F. México
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Surface functionalized silica as a toolkit for studying aqueous phase palladium adsorption and mineralization on thiol moiety in the absence of external reducing agents. J Colloid Interface Sci 2011; 356:31-6. [DOI: 10.1016/j.jcis.2010.12.064] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2010] [Revised: 12/15/2010] [Accepted: 12/16/2010] [Indexed: 11/23/2022]
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Nanosized Noble Metals Intercalated in Clay as Catalysts for Selective Hydrogenation. CHINESE JOURNAL OF CATALYSIS 2010. [DOI: 10.1016/s1872-2067(10)60112-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Belova V, Möhwald H, Shchukin DG. Sonochemical intercalation of preformed gold nanoparticles into multilayered clays. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:9747-9753. [PMID: 18652497 DOI: 10.1021/la8010822] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Multilayered Na (+)-montmorillonite clays intercalated with Au nanoparticles were synthesized by direct ultrasonic impregnation of preformed gold colloid into the clay matrix. The sonicated composite product then consists of Au nanoparticles homogeneously dispersed in the clay. The resulting clay/nano-Au composite was calcined at 800 degrees C and characterized by BET surface area analysis, transmission electron microscopy, scanning electron microscopy, X-ray diffraction, and Fourier transform infrared measurements. Nearly spherical-shaped gold nanoparticles, with a size of 6 +/- 0.5 nm, are located in the pores of clay calcined at 800 degrees C. Their nanocomposites are thermally stable as was shown by thermogravimetric analysis. No aggregation of the gold nanoparticles was observed during calcination. The proposed ultrasonic intercalation approach is an universal one and can be employed for synthesis of catalytically active metal-clay nanocomposites stable at high temperatures with high dispersability of the metal nanoparticles in the clay matrix.
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Affiliation(s)
- Valentina Belova
- Max-Planck Institute of Colloids and Interfaces, D14476 Potsdam, Germany.
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Jiang X, Chen S, Mao C. Synthesis of Ag/SiO2 nanocomposite material by adsorption phase nanoreactor technique. Colloids Surf A Physicochem Eng Asp 2008. [DOI: 10.1016/j.colsurfa.2008.01.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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6
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Manikandan D, Divakar D, Sivakumar T. Selective Hydrogenation of Citral Over Noble Metals Intercalated Montmorillonite Catalysts. Catal Letters 2008. [DOI: 10.1007/s10562-008-9402-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Manikandan D, Divakar D, Sivakumar T. Utilization of clay minerals for developing Pt nanoparticles and their catalytic activity in the selective hydrogenation of cinnamaldehyde. CATAL COMMUN 2007. [DOI: 10.1016/j.catcom.2007.02.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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8
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Papp S, Dékány I. Nucleation and growth of palladium nanoparticles stabilized by polymers and layer silicates. Colloid Polym Sci 2006. [DOI: 10.1007/s00396-006-1479-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Gröschel L, Haidar R, Beyer A, Cölfen H, Frank B, Schomäcker R. Hydrogenation of Propyne in Palladium-Containing Polyacrylic Acid Membranes and Its Characterization. Ind Eng Chem Res 2005. [DOI: 10.1021/ie050426s] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lothar Gröschel
- Institute of Chemistry, Technical University of Berlin, Strasse des 17. Juni 124, 10623 Berlin, Germany, and Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Rami Haidar
- Institute of Chemistry, Technical University of Berlin, Strasse des 17. Juni 124, 10623 Berlin, Germany, and Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Andreas Beyer
- Institute of Chemistry, Technical University of Berlin, Strasse des 17. Juni 124, 10623 Berlin, Germany, and Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Helmut Cölfen
- Institute of Chemistry, Technical University of Berlin, Strasse des 17. Juni 124, 10623 Berlin, Germany, and Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Benjamin Frank
- Institute of Chemistry, Technical University of Berlin, Strasse des 17. Juni 124, 10623 Berlin, Germany, and Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Reinhard Schomäcker
- Institute of Chemistry, Technical University of Berlin, Strasse des 17. Juni 124, 10623 Berlin, Germany, and Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
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D�az E, Ord��ez S, Vega A, Coca J. Determination of Metal Dispersion and Surface Acidity of a Pd/Al2O3 Catalyst by Gas Chromatography. Chromatographia 2005. [DOI: 10.1365/s10337-005-0505-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Sivakumar T, Krithiga T, Shanthi K, Mori T, Kubo J, Morikawa Y. Noble metals intercalated/supported mica catalyst – synthesis and characterization. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/j.molcata.2003.11.041] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Cozzoli PD, Comparelli R, Fanizza E, Curri ML, Agostiano A, Laub D. Photocatalytic Synthesis of Silver Nanoparticles Stabilized by TiO2Nanorods: A Semiconductor/Metal Nanocomposite in Homogeneous Nonpolar Solution. J Am Chem Soc 2004; 126:3868-79. [PMID: 15038741 DOI: 10.1021/ja0395846] [Citation(s) in RCA: 276] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel colloidal approach toward semiconductor/metal nanocomposites is presented. Organic-soluble anatase TiO(2) nanorods are used for the first time to stabilize Ag nanoparticles in optically clear nonpolar solutions in the absence of specific ligands for silver. Metallic silver is generated upon UV illumination of deaerated TiO(2) solutions containing AgNO(3). The Ag nanoparticles can be obtained in different size-morphological regimes as a function of the irradiation time, due to light-induced photofragmentation and ripening processes. A mechanism for the colloidal stabilization of the silver nanoparticles is tentatively suggested, which regards the TiO(2) nanorods as inorganic stabilizers, thus acting in the same manner as conventional surfactant molecules. The proposed photocatalytic approach offers a convenient method for producing TiO(2)/Ag nanocomposite systems with a certain control over the metal particle size without the use of surfactants and/or additives. Stable colloidal TiO(2)-nanorod-stabilized Ag nanoparticles can be potentially available for a number of applications that require "clean" metal surfaces, such as homogeneous organic catalysis, photocatalysis, and sensing devices.
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Affiliation(s)
- P Davide Cozzoli
- Dipartimento di Chimica, Università di Bari, Via Orabona 4, 70126 Bari, Italy
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Preparation of TiO2 nanoparticles on the surface of SiO2 in binary liquids. Colloids Surf A Physicochem Eng Asp 2004. [DOI: 10.1016/j.colsurfa.2003.11.029] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Beyer A, Schomäcker R, Reichert KH. Synthesis and characterization of palladium containing membranes based upon polyacrylic acid. Colloid Polym Sci 2003. [DOI: 10.1007/s00396-003-0860-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Roucoux A, Schulz J, Patin H. Reduced transition metal colloids: a novel family of reusable catalysts? Chem Rev 2002; 102:3757-78. [PMID: 12371901 DOI: 10.1021/cr010350j] [Citation(s) in RCA: 1148] [Impact Index Per Article: 52.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Alain Roucoux
- Ecole Nationale Supérieure de Chimie de Rennes, UMR CNRS 6052 "Synthèses et Activations de Biomolécules", Institut de Chimie de Rennes, Avenue du Gal Leclerc - 35700 Rennes, France.
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Efremenko I. Implication of palladium geometric and electronic structures to hydrogen activation on bulk surfaces and clusters. ACTA ACUST UNITED AC 2001. [DOI: 10.1016/s1381-1169(01)00144-3] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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