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Colorants, Volume 4, Issue 2

2025 June - 11 articles

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Articles (11)

  • Article
  • Open Access
6 Citations
4,181 Views
12 Pages

The Investigation of the Adsorption of Methylene Blue from Water by Torrefied Biomass

  • Mariana Consiglio Kasemodel,
  • Leandro Gonçalves de Aguiar,
  • Valéria Guimarães Silvestre Rodrigues and
  • Érica Leonor Romão

This research investigates the adsorption potential of four types of adsorbents produced from agro-industrial waste (grape pomace—GP, tree pruning—TP, sugarcane bagasse—SB, and eucalyptus sawdust—ES) for the uptake of thiazine...

  • Article
  • Open Access
18 Citations
9,712 Views
19 Pages

The increasing prevalence of microplastic (MP) pollution and the labor-intensive nature of existing identification methods necessitate improved large-scale detection approaches. Nile Red (NR) fluorescence, which varies with polarity, offers a potenti...

(This article belongs to the Special Issue Feature Papers in Colorant Chemistry)
  • Review
  • Open Access
1 Citations
2,919 Views
14 Pages

Spalted wood is a natural material characterized by distinctive colors and patterns from wood decay fungi as they digest their substrate and leave behind colored secretions. As an art form, spalted wood was used heavily in western Europe from the 140...

  • Review
  • Open Access
4 Citations
3,347 Views
12 Pages

Prodigiosin: A Potential Eco-Friendly Insecticide for Sustainable Crop Protection

  • Gabriela Elizabeth Quintanilla-Villanueva,
  • Esther Emilia Ríos-Del Toro,
  • Iris Cristina Arvizu-De León,
  • Donato Luna-Moreno and ,
  • Melissa Marlene Rodríguez-Delgado and
  • Juan Francisco Villarreal-Chiu
  • + 1 author+ 0 author

Globally, insect pests adversely affect approximately 75% of the most important crops. However, the widespread use of chemical insecticides has significant drawbacks, including non-specific biological activity, toxicity to humans, detrimental effects...

  • Article
  • Open Access
8 Citations
3,426 Views
25 Pages

Assessment of the Effect of Zn Co-Doping on Fe/TiO2 Supports in the Preparation of Catalysts by Wet Impregnation for Photodegradation Reactions of Food Coloring Effluents

  • Luiz Eduardo Nochi Castro,
  • Larissa Resende Matheus,
  • Giane Gonçalves Lenzi,
  • Mabel Karina Arantes and ,
  • Lariana Negrão Beraldo Almeida,
  • Rodrigo Brackmann and
  • Leda Maria Saragiotto Colpini
  • + 2 authors+ 0 author

This study explores the photocatalytic efficiency of Zn/Fe/TiO2 catalysts, synthesized via the wet impregnation method, for degrading the food colorings Allura Red and Tartrazine Yellow. A 22 factorial design with a central point replication guided t...

  • Review
  • Open Access
1 Citations
7,220 Views
36 Pages

The world has recently witnessed the dire consequences of microbial infections in the form of the spread of COVID 19. Like viruses, bacterial infections too are a serious global health concern, especially because of the evolution of multidrug-resista...

  • Article
  • Open Access
1 Citations
3,225 Views
15 Pages

Aldehyde green, a dye first obtained by reacting fuchsine with acetaldehyde in 1862, consists of, according to analytical investigations carried out on a sample of this dye deposited in the Historical Dyestuff Collection of the Technical University D...

(This article belongs to the Special Issue Feature Papers in Colorant Chemistry)
  • Article
  • Open Access
1 Citations
2,821 Views
14 Pages

Methylene Blue as a Sensitizing Dye: Enhancement of the Photocatalytic Performance of a Peroxide-Functionalized Iron Molybdate by the Antenna Effect

  • José Balena G. Filho,
  • Clóvis G. Vieira,
  • Daniel B. de Jesus,
  • Henrique F. V. Victória and ,
  • Edmar A. Soares,
  • Klaus Krambrock,
  • Márcio César Pereira and
  • Luiz Carlos A. Oliveira
  • + 3 authors+ 0 author

The use of dyes as sensitizing agents to increase semiconductor activity is a strategy already adopted in the field of heterogeneous photocatalysis, but the compounds applied are noble metal-based and sometimes difficult to synthesize, which make it...

  • Review
  • Open Access
21 Citations
13,763 Views
41 Pages

BODIPY Dyes: A New Frontier in Cellular Imaging and Theragnostic Applications

  • Panangattukara Prabhakaran Praveen Kumar,
  • Shivanjali Saxena and
  • Rakesh Joshi

BODIPY (Boron-Dipyrromethene) dyes have emerged as versatile fluorescent probes in cellular imaging and therapeutic applications owing to their unique chemical properties, including high fluorescence quantum yield, strong extinction coefficients, and...

  • Article
  • Open Access
2 Citations
3,127 Views
16 Pages

Reactive Dyeing of Cotton Yarns by Exhaustion Method in an Oil-Based Medium Using Crude and Refined Soybean Oil

  • Edilson Locks,
  • Selene Maria de Arruda Guelli Ulson de Souza,
  • Afonso Henrique da Silva Júnior,
  • Carlos Rafael Silva de Oliveira and
  • Catia Rosana Lange de Aguiar

Dyeing is a major contributor to pollution, with high concentrations of hydrolyzed dyes and electrolytes in its effluents. Recent studies suggest the possibility of dyeing cotton substrates with reactive dyes in an oil medium, reducing the need for e...

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Colorants - ISSN 2079-6447