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Colorants, Volume 5, Issue 1

2026 March - 9 articles

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Articles (9)

  • Article
  • Open Access
1,124 Views
14 Pages

Treatment of Real Textile Wastewater Using a Photo-Fenton Reactor Made of Reused Fluorescent Lamps and with a Compound Parabolic Concentrator

  • Marina Barros Cavalcanti,
  • Ziani Santana Bandeira de Souza,
  • Nickolly Bukkyo Vieira Serafim,
  • Caroline Maria Bezerra de Araujo,
  • Jorge Vinicius Fernandes Lima Cavalcanti and
  • Maurício Alves da Motta Sobrinho

Advanced oxidation processes (AOPs) have been widely applied to treat textile wastewater, in which synthetic dyes are among the main pollutants. Some of these processes, such as the Fenton reaction, exhibit enhanced efficiency when coupled with radia...

  • Article
  • Open Access
1,148 Views
13 Pages

Dye-sensitized solar cells (DSSCs) represent a promising low-cost photovoltaic technology with relatively high conversion efficiency and a simple fabrication process. Natural dyes have drawn growing interest compared to ruthenium-based dyes since the...

  • Article
  • Open Access
1,162 Views
19 Pages

Electrocatalytic Degradation of Methylene Blue Using rGO, Sb2O3, and rGO-Sb2O3 Composite Ink-Based Electrodes

  • Maria I. Myers Armas,
  • Andrea M. Fletes,
  • Thomas M. Eubanks,
  • Arnulfo Mar,
  • Jason G. Parsons and
  • Helia M. Morales

17 February 2026

Water pollution from industrial dyes is a critical challenge due to the resistance of these types of compounds to degradation and potentially harmful effects on living organisms and human health. In this study, the electrochemical degradation of meth...

  • Article
  • Open Access
2,814 Views
41 Pages

14 February 2026

Heritage materials science techniques, including pXRF, FTIR-ATR, XRD, microphotography, and microsampling, have peeled back concealed layers of polychromy on a Roman Mithraic altar near Hadrian’s Wall. The results break new ground by exposing t...

(This article belongs to the Special Issue Feature Papers in Colorant Chemistry)
  • Review
  • Open Access
1 Citations
1,485 Views
37 Pages

The trend toward developing sustainable nanotechnology has driven researchers to explore environmentally friendly techniques for nanomaterial fabrication. This review examines the utilisation of Commelina benghalensis plant extracts as an effective b...

  • Review
  • Open Access
2 Citations
3,160 Views
26 Pages

Ecotoxicological Aspects of Hair Dyes: A Review

  • Letícia Cristina Gonçalves,
  • Matheus Mantuanelli Roberto and
  • Maria Aparecida Marin-Morales

Hair dyes are widely used across all socioeconomic groups and regions worldwide. However, some studies indicate that these products contain substances known to be toxic to a wide variety of organisms. Moreover, dyeing practices generate effluents tha...

  • Review
  • Open Access
3 Citations
1,678 Views
24 Pages

Advances in Plant Mediated Iron Oxide Nanoparticles for Dye Colorant Degradation—A Review

  • Louisah Mmabaki Mahlaule-Glory and
  • Nomso Charmaine Hintsho-Mbita

Water polluted by dye colorants has been on the rise in the last decade. This is due to the over reliance on the textile industry, and it is holding a high economic value in most countries. This industry is the highest consumer of fresh water whilst...

  • Article
  • Open Access
1 Citations
2,986 Views
33 Pages

The correct identification of historical artists’ earth pigments is mandatory for cultural, scholarly, and historical applications. This paper focuses on the definition of the distinctive mineralogical, geological, and geochemical properties an...

(This article belongs to the Special Issue All the Colors of the Rainbow: Natural Colorants)
  • Perspective
  • Open Access
1,007 Views
10 Pages

24 December 2025

This Perspective sets out to raise awareness about the chemical and photophysical properties of an assortment of blue colorants; it is generally regarded that blue is the most popular color worldwide and is recognized for its serenity and calming eff...

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Colorants - ISSN 2079-6447