Layered double hydroxides-derived materials: synthesis, characterization and application in adsorption and advanced oxidation processes

• Grant number: 13/25043-4
• Support Opportunities: Scholarships in Brazil - Master
• Start date: March 01, 2014
• End date: December 31, 2015
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: Celso Valentim Santilli
• Grantee: Rodrigo Morais Menezes dos Santos
• Host Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil
• Associated scholarship(s): 14/24882-5 - XAS time-resolved phase speciation of the LDH: from the decomposition to the regeneration, BE.EP.MS

Abstract

he contamination of water resources by various organic pollutants,such as industrial dyes, has caused serious environmental problems.Some decontamination processes uses solid materials as adsorbents for the treatment of contaminated wastewater. These processes have suitable characteristics for implantation on an industrial scale, with high removal efficiency and low cost. The Advanced Oxidation Processes (AOPs), as heterogeneous photocatalysis, have also been used in the decontamination of water. The AOPs transform organic pollutants in easily degradable substances, typically inert or harmless. Multifunctional materials such as layered double hydroxides (LDHs) and their derivatives can be used for adsorptive and photocatalyticprocesses as well. Thus, this research project aims to study the multifunctionality of LDHs and their derivatives for removal and/or degradation of dyes. More specifically, the objectives of this project are: (i) synthesis and characterization of LDHs and their thermaldecomposition products, (ii) use of materials for the study of removal and/or degradation of textile dyes. The materials will be characterized by a set of techniques, including: XRPD, FTIR-ATR, SEM, XPS, TG, DSC and BET area. The degradation of dye will be measured by liquid chromatography coupled mass spectrometry (LC-MS) and UV-Vis spectrophotometry. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SANTOS, R. M. M.; TRONTO, J.; BRIOIS, V.; SANTILLI, C. V.. Thermal decomposition and recovery properties of ZnAl-CO3 layered double hydroxide for anionic dye adsorption: insight into the aggregative nucleation and growth mechanism of the LDH memory effect. JOURNAL OF MATERIALS CHEMISTRY A, v. 5, n. 20, p. 9998-10009, MAY 28 2017. (13/25043-4, 15/23410-5)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

SANTOS, Rodrigo Morais Menezes dos. Layered double hydroxides-derived materials: synthesis, characterization and application in adsorption and advanced oxidation processes. 2016. Master's Dissertation - Universidade Estadual Paulista (Unesp). Instituto de Química. Araraquara Araraquara.