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Sánchez BS, Neyertz CA, Zanuttini MS, Querini CA, Mendow G. Hybrid process for nitrates elimination in water. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.06.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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De la Rosa-Guzmán MÁ, Guzmán-Vargas A, Cayetano-Castro N, Del Río JM, Corea M, Martínez-Ortiz MDJ. Thermal Stability Evaluation of Polystyrene-Mg/Zn/Al LDH Nanocomposites. NANOMATERIALS 2019; 9:nano9111528. [PMID: 31717847 PMCID: PMC6915476 DOI: 10.3390/nano9111528] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 10/21/2019] [Accepted: 10/24/2019] [Indexed: 11/16/2022]
Abstract
A series of samples of Mg/Zn/Al LDHs (layered double hydroxides) materials was prepared by the co-precipitation and urea hydrolysis methods. They were modified with organic surfactants (acrylate and oleate anions) and characterized by X-ray diffraction, which corroborated the intercalation of anionic species into the interlayer space. The hydrophobized materials were incorporated at low contents (10 and 15 wt.%) to polystyrene, which was synthesized by emulsion polymerization techniques. The polymeric composites were analyzed by thermogravimetry to determine the decomposition temperature. The results demonstrated that the materials with Zn presented the greatest increment in the degradation temperature (7 °C < T < 54 °C). Moreover, the Friedman, Flynn–Wall–Ozawa, and Coats–Redfern models were compared to obtain the kinetic parameters of degradation process. The obtained order of decomposition of the Coats–Redfern model showed that the decomposition process occurs in at least two stages. Finally, the addition of environmentally friendly modified Layered Double Hydroxides (LDH) nanomaterials to the polystyrene (PS) matrix allowed for obtaining polymeric composites with higher thermal stability, retarding the decomposition process of PS.
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Affiliation(s)
- Miguel Ángel De la Rosa-Guzmán
- Instituto Politécnico Nacional-ESIQIE, Laboratorio de Investigación en Materiales Porosos, Catálisis Ambiental y Química Fina, UPALM, Edificio 7 P. B., Zacatenco, C. P., Ciudad de México 07738, Mexico (A.G.-V.)
- Instituto Politécnico Nacional-ESIQIE, Laboratorio de Investigación en Polímeros y Nanomateriales, UPALM, Edificio Z-5, P. B., Zacatenco, Gustavo A. Madero, C. P., Ciudad de México 07738, Mexico;
| | - Ariel Guzmán-Vargas
- Instituto Politécnico Nacional-ESIQIE, Laboratorio de Investigación en Materiales Porosos, Catálisis Ambiental y Química Fina, UPALM, Edificio 7 P. B., Zacatenco, C. P., Ciudad de México 07738, Mexico (A.G.-V.)
| | - Nicolás Cayetano-Castro
- Instituto Politécnico Nacional, Centro de Nanociencias Micro y Nanotecnologías, C.P., México D.F. 07300, Mexico;
| | - José Manuel Del Río
- Instituto Politécnico Nacional-ESIQIE, Laboratorio de Investigación en Polímeros y Nanomateriales, UPALM, Edificio Z-5, P. B., Zacatenco, Gustavo A. Madero, C. P., Ciudad de México 07738, Mexico;
| | - Mónica Corea
- Instituto Politécnico Nacional-ESIQIE, Laboratorio de Investigación en Polímeros y Nanomateriales, UPALM, Edificio Z-5, P. B., Zacatenco, Gustavo A. Madero, C. P., Ciudad de México 07738, Mexico;
- Correspondence: (M.C.); (M.d.J.M.-O.)
| | - María de Jesús Martínez-Ortiz
- Instituto Politécnico Nacional-ESIQIE, Laboratorio de Investigación en Materiales Porosos, Catálisis Ambiental y Química Fina, UPALM, Edificio 7 P. B., Zacatenco, C. P., Ciudad de México 07738, Mexico (A.G.-V.)
- Correspondence: (M.C.); (M.d.J.M.-O.)
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Devard A, Aghemo VS, Caballero Dorantes CA, Gutierrez Arzaluz M, Marchesini FA, Ulla MA. Pd and In addition onto Au nanoparticles supported on TiO2 as a catalytic formulation for NO3 − reduction in water. REACTION KINETICS MECHANISMS AND CATALYSIS 2016. [DOI: 10.1007/s11144-016-1102-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Papa F, Balint I, Negrila C, Olaru EA, Zgura I, Bradu C. Supported Pd–Cu Nanoparticles for Water Phase Reduction of Nitrates. Influence of the Support and of the pH Conditions. Ind Eng Chem Res 2014. [DOI: 10.1021/ie503070f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Florica Papa
- Institute of Physical Chemistry of the Romanian Academy, Spl. Independentei 202, 060021 Bucharest, Romania
| | - Ioan Balint
- Institute of Physical Chemistry of the Romanian Academy, Spl. Independentei 202, 060021 Bucharest, Romania
| | - Catalin Negrila
- National Institute of Materials Physics, P.O.
Box MG 7, 077125 Magurele, Romania
| | - Elena-Alina Olaru
- Research
Center for Environmental Protection and Waste Management, University of Bucharest, Sos. Panduri 90, 050663 Bucharest, Romania
| | - Irina Zgura
- National Institute of Materials Physics, P.O.
Box MG 7, 077125 Magurele, Romania
| | - Corina Bradu
- Research
Center for Environmental Protection and Waste Management, University of Bucharest, Sos. Panduri 90, 050663 Bucharest, Romania
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Lei X, Wang L, Zhao X, Chang Z, Jiang M, Yan D, Sun X. Oriented CuZnAl Ternary Layered Double Hydroxide Films: In situ Hydrothermal Growth and Anticorrosion Properties. Ind Eng Chem Res 2013. [DOI: 10.1021/ie403299u] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiaodong Lei
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, P.O. Box 98, Beijing 100029, China
| | - Linna Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, P.O. Box 98, Beijing 100029, China
| | - Xuhui Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, P.O. Box 98, Beijing 100029, China
| | - Zheng Chang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, P.O. Box 98, Beijing 100029, China
| | - Meihong Jiang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, P.O. Box 98, Beijing 100029, China
| | - Dongpeng Yan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, P.O. Box 98, Beijing 100029, China
| | - Xiaoming Sun
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, P.O. Box 98, Beijing 100029, China
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