Composite Materials in Water Treatment Applications

A special issue of Journal of Composites Science (ISSN 2504-477X). This special issue belongs to the section "Composites Applications".

Deadline for manuscript submissions: 5 July 2026 | Viewed by 1366

Special Issue Editors


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Guest Editor
Department of Textile Engineering, Federal University of Santa Catarina (UFSC), Florianópolis, Brazil
Interests: polymeric and ceramic (nano)composites; hybrid polymers; textile fibers & processes
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Graduate Program in Agronomy (PPGAgro), University of Passo Fundo (UPF), Passo Fundo 99052-900, Rio Grande do Sul, Brazil
Interests: enzyme technology; bioprocesses; membrane separation; wastewater treatment; bioethanol; waste valorization; materials characterization

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Guest Editor
Energy and Sustainability Department, Federal University of Santa Catarina-UFSC, 3201 Governador Jorge Lacerda Hwy., Araranguá 88905-120, SC, Brazil
Interests: advanced materials; adsorption; water treatment; materials characterization; photocatalysis; composites; fibers and polymers
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue is dedicated to highlighting the latest developments and emerging trends in composite materials for water treatment applications. As global concerns over water pollution, scarcity, and persistent contaminants continue to rise, advanced materials capable of efficient and selective pollutant removal are urgently needed. Composite materials offer a versatile platform by combining multiple functionalities—such as high surface area, tailored porosity, mechanical resistance, and chemical reactivity—making them ideal candidates for next-generation water treatment technologies. This issue welcomes original research articles, comprehensive reviews, and insightful perspectives on the design, synthesis, and application of composite materials for removing heavy metals, dyes, pharmaceuticals, microplastics, and other emerging pollutants. Topics of interest include but are not limited to bio-based and polymeric composites, nanostructured hybrids, membrane systems, photocatalytic and adsorptive composites, regeneration and recyclability strategies, pilot-scale applications, and performance evaluations in real-world scenarios. Studies addressing material–environment interactions, long-term stability, and sustainable manufacturing approaches are particularly encouraged. This special issue aims to present a multidisciplinary perspective on how composite materials are shaping the future of water purification and resource recovery by bringing together contributions from materials scientists, chemists, engineers, and environmental researchers. We hope to foster collaboration and inspire innovative solutions that support safe, efficient, and sustainable water treatment technologies.

Prof. Dr. Carlos Rafael Silva De Oliveira
Dr. Jéssica Mulinari
Prof. Dr. Afonso Henrique da Silva Júnior
Guest Editors

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Keywords

  • composite materials
  • water treatment
  • photocatalysis
  • adsorption
  • pollutant removal
  • heavy metals
  • dyes
  • pharmaceuticals
  • microplastics
  • emerging pollutants
  • membrane systems
  • environmental remediation
  • green chemistry

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Published Papers (1 paper)

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Research

29 pages, 1599 KB  
Article
Adsorption in an Aqueous Multimetal System Using a Mineral–Biological Composite: A Kinetic and Isotherm Study
by David Choque-Quispe, Jorge W. Elias-Silupu, Ybar G. Palomino-Malpartida, Wildor Merardo Díaz Bazán, Yakov Felipe Carhuarupay-Molleda, Bryan Jefferson Abollaneda Altamirano, Arturo Rojas Benites, Carlos Eduardo Dueñas Valcarcel, Carmen Rosa Cárdenas Rosales and Edward Arostegui León
J. Compos. Sci. 2026, 10(3), 126; https://doi.org/10.3390/jcs10030126 - 26 Feb 2026
Viewed by 1032
Abstract
Anthropogenic activities generate waste that negatively impacts the environment, especially water resources, due to the accumulation of heavy metal ions. Several adsorption methods have been developed, including the use of natural materials such as algae and activated clay. This study aimed to evaluate [...] Read more.
Anthropogenic activities generate waste that negatively impacts the environment, especially water resources, due to the accumulation of heavy metal ions. Several adsorption methods have been developed, including the use of natural materials such as algae and activated clay. This study aimed to evaluate the effect of pH on batch adsorption of heavy metal ions using Nostoc sphaericum hydrocolloid (HA)/activated nanoclay (NR) composites. The NR/HMB-HA and NR/HUT-HA composites were prepared with a 2:8 mass ratio of HA and NR, using types of clay with code HMB and HUT, previously activated with 1 M NaCl and acid treatment. The adsorption capacity was evaluated using batch tests at pH 4.5 and 5.5, analyzing the removal percentage, adsorption kinetics, adsorption isotherms, and regeneration cycles for unimetal and multimetal systems. The composites present a load point close to 5.1. The FTIR analysis showed changes in the intensity of functional groups following adsorption, confirming the interaction with metallic ions. Both composites showed high affinity in multimetallic systems, especially at pH 5.5, with high selectivity for Pb2+ (≈99% removal), followed by As, Cd, and Zn, from an initial concentration of 10 ppm for each metal ion. Equilibrium is reached in approximately 90 min, allowing adsorption of up to 69.9% after five regeneration cycles in a multimetal system. The kinetic study showed that multimetal absorption at equilibrium is governed by chemisorption processes in the order Pb > As > Zn > Cd, with qe values between 0.392 and 0.058 mmol/g and diffusivity from 15.506 × 1011 to 1.692 × 1011 m2/s. Likewise, the isotherms study indicated a favorable process with maximum adsorption (qmax) between 16.696 and 5.223 mmol/g at pH 5.5. Altogether, the developed composites show high potential for the removal of heavy metals in contaminated waters, in addition to their high reuse capacity. Full article
(This article belongs to the Special Issue Composite Materials in Water Treatment Applications)
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