Cited by 7TiO2 Photocatalysis and Solar CellsAdvanced Photocatalysis TechniquesAdsorption and biosorption for pollutant removal

Photoproducts of carminic acid formed by a composite from Manihot dulcis waste

Antonio-Cisneros, Cynthia M., Dávila-Jiménez, Martín M., Elizalde-González, María P., García-Díaz, Esmeralda·2015·Food Chemistry

Abstract

Carbon-TiO2 composites were obtained from carbonised Manihot dulcis waste and TiO2 using glycerol as an additive and thermally treating the composites at 800 °C. Furthermore, carbon was obtained from manihot to study the adsorption, desorption and photocatalysis of carminic acid on these materials. Carminic acid, a natural dye extracted from cochineal insects, is a pollutant produced by the food industry and handicrafts. Its photocatalysis was observed under different atmospheres, and kinetic curves were measured by both UV-Vis and HPLC for comparison, yielding interesting differences. The composite was capable of decomposing approximately 50% of the carminic acid under various conditions. The reaction was monitored by UV-Vis spectroscopy and LC-ESI-(Qq)-TOF-MS-DAD, enabling the identification of some intermediate species. The deleterious compound anthracene-9,10-dione was detected both in N2 and air atmospheres.

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Crossref · 10.1016/j.foodchem.2014.10.085

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Authors
Antonio-Cisneros, C. M., Dávila-Jiménez, M. M., Elizalde-González, M. P., & García-Díaz, E.
Affiliations
Universidad del Papaloapan (MX)
Venue
Food Chemistry
Publisher
Elsevier BV
Published
2015-04
Volume
173
Pages
725-732
ISSN
0308-8146 (ISSN-L)
OpenAlex
W2065669851
Cited by
7
References
33
Citations by year
2026: 2 · 2020: 1 · 2017: 1 · 2016: 2 · 2015: 1
FWCI
0.44
Type
journal article
Language
en
Open access
closed
Locations
  • Food Chemistry (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • UAP
  • CONACYT (227566)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › TiO2 Photocatalysis and Solar Cells
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Advanced Photocatalysis Techniques
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
Keywords
carminic acid, TiO2/carbon composites, photocatalysis, photodegradation, glycerol additive, carbonization, dye removal, anthracene-9,10-dione, degradation intermediates, adsorption-desorption
MeSH terms
Carbon, Carmine, Manihot, Chromatography, High Pressure Liquid, Food Coloring Agents, Photolysis, Mass Spectrometry, Titanium, Nanoparticles

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