Impact of microenvironment chemical composition on heritage objects: mechanisms and monitoring

• Grant number: 11/13760-8
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: December 01, 2011
• End date: February 28, 2015
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal Investigator: Dalva Lucia Araujo de Faria
• Grantee: Thiago Sevilhano Puglieri
• Host Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

This Research Project is devoted to the investigation of the impact of microenvironments on the cultural heritage degradation, aiming at the understanding of degradation mechanisms and the monitoring of the aggressiveness factor actions.The investigations will encompass ecclesiastic objects in current use in XVIII and XIX century churches, constructed in urban environments of intense and low industrial activities and coastal areas. The targeted objects will be metals (Ag, Sn, Pb and Cu) or alloys (bronze) and the factors to be monitored will be both physical, such as relative humidity, temperature and illumination (type and intensity), and chemical, such as volatile organic compounds, H2S, SO2 and O3. Internal and external environments will be continually monitored in-situ by portable devices and coupons and periodically by passive samplers.Degradation mechanisms and synergic effects will be evaluated in laboratory bench experiments, following the same protocol used in previous works, with controlled environment parameters. Chemical changes of the metal and alloys surfaces will be studied using spectroscopic (Raman, FTIR, UV-Vis-NIR absorption, XRF) and chromatographic (ions chromatograph and HPLC) methods, as well as XRD and SEM. From the obtained results, it is intended to understand the synergic effects on cultural heritage degradation and to contribute to the establishment of preventive conservation strategies. (AU)

Scientific publications

(8)

(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)

BERNARDINO, NATHALIA D'ELBOUX; PUGLIERI, THIAGO SEVILHANO; DE FARIA, DALVA L. A.. Effect of MnO2 and alpha-Fe2O3 on organic binders degradation investigated by Raman spectroscopy. VIBRATIONAL SPECTROSCOPY, v. 70, p. 70-77, JAN 2014. (12/05643-4, 11/13760-8, 06/58748-7)

PUGLIERI, THIAGO S.; DE FARIA, DALVA L. A.; CAVICCHIOLI, ANDREA. Indoor corrosion of Pb: Effect of formaldehyde concentration and relative humidity investigated by Raman microscopy. VIBRATIONAL SPECTROSCOPY, v. 71, p. 24-29, MAR 2014. (12/13119-3, 11/13760-8)

DE FARIA, DALVA L. A.; PUGLIERI, THIAGO S.; SOUZA, LUIZ ANTONIO C.. Metal corrosion in polychrome baroque lead sculptures: a case study. Journal of the Brazilian Chemical Society, v. 24, n. 8, p. 1345+, AUG 2013. (11/13760-8, 06/58748-7)

THIAGO S. PUGLIERI; RAUL DE O. FREITAS; FRANCISCO C. B. MAIA; DALVA L. A. DE FARIA. NANOESPECTROSCOPIA DE ABSORÇÃO DE RADIAÇÃO SÍNCROTRON NO INFRAVERMELHO PARA NANOESPECIAÇÃO DE PRODUTOS DE CORROSÃO METÁLICA. Química Nova, v. 42, n. 9, p. 1050-1055, 2019-12-05. (16/21070-5, 11/13760-8, 12/13119-3)

PUGLIERI, THIAGO S.; LAVEZZO, ARIANE S.; DOS SANTOS, ISABELA F. S.; DE FARIA, DALVA L. A.. Investigation on the hazing of a Brazilian contemporary painting. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, v. 159, p. 117-122, APR 15 2016. (12/13119-3, 11/13760-8)

DE FARIA, DALVA L. A.; EDWARDS, HOWELL G. M.; CAREAGA, VALERIA; WALT, NICHOLAS; MAIER, MARTA S.. A definitive analytical spectroscopic study of Indian yellow, an ancient pigment used for dating purposes. Forensic Science International, v. 271, p. 1-7, FEB 2017. (12/13119-3, 11/13760-8)

DALVA L. A. DE FARIA; THIAGO S. PUGLIERI. DIFERENCIANDO REPRODUÇÕES E PINTURAS VERDADEIRAS: UM INTERESSANTE ESTUDO DE CASO. Química Nova, v. 39, n. 5, p. 542-547, 2016-06-00. (11/13760-8, 12/13119-3)

TOMASINI, EUGENIA; CASTELLANOS RODRIGUEZ, DIANA; GOMEZ, BLANCA A.; DE FARIA, DALVA L. A.; RUA LANDA, CARLOS; SIRACUSANO, GABRIELA; MAIER, MARTA S.. A multi-analytical investigation of the materials and painting technique of a wall painting from the church of Copacabana de Andamarca (Bolivia). Microchemical Journal, v. 128, p. 172-180, SEP 2016. (12/13119-3, 11/13760-8)

Academic Publications

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

PUGLIERI, Thiago Sevilhano. Impact of microenvironmental chemical composition on heritage objects: reactivity and monitoring. 2015. Doctoral Thesis - Universidade de São Paulo (USP). Conjunto das Químicas (IQ e FCF) (CQ/DBDCQ) São Paulo.