Hydrothermally Treated Ferrites for Solar Water Disinfection: Mechanistic Transition and Global Solar Exposure Analysis

ACS ES&T Water 2026

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Authors: Valentina Bedoya-Giraldo, I. C. Ortega, Lucas Blandón, Orlando Simón Ruíz Villadiego, Gloria Cristina Valencia, S. Amaya-Roncancio, Adriana Ipiña, Juliana Palacio, D. Fabio Mercado
DOI: 10.1021/acsestwater.5c01284
Cited by: 0
References: 82

Abstract

Abstract Antimicrobial resistance and waterborne pathogens require efficient and environmentally compliant disinfection strategies. Cu2+-, Zn2+-, and Mn2+-doped ferrite nanoparticles were evaluated for Escherichia coli inactivation under dark and visible-light conditions. As-prepared ferrites exhibited bactericidal activity mainly driven by divalent metal leaching (up to 18.9 ± 0.9 mg L–1 Zn2+, 18.7 ± 0.1 mg L–1 Mn2+, and 6.2 ± 0.7 mg L–1 Cu2+), producing up to ∼3 log10 reductions in colony-forming units per milliliter (CFU mL–1) but exceeding drinking-water guidelines. Hydrothermal treatment transformed the amorphous ferrites into crystalline nanospinels (≈18–21 nm) and markedly suppressed metal release (

Fields of Study & Subjects

Advanced Photocatalysis Techniques Nanoparticles: synthesis and applications Magnetic Properties and Synthesis of Ferrites

Publication details

Journal / source
ACS ES&T Water
Volume
6
Issue
2
Pages
1275–1291
Publication date
17 January 2026
Language
EN