Special Issues

Separations publishes Special Issues to create collections of papers on specific topics, with the aim of building a community of authors and readers to discuss the latest research and develop new ideas and research directions. Special Issues are led by Guest Editors, who are experts on the topic and all Special Issue submissions follow MDPI's standard editorial process. The journal’s Editor-in-Chief and/or designated Editorial Board Member will oversee Guest Editor appointments and Special Issue proposals, checking their content for relevance and ensuring the suitability of the material for the journal. The papers published in a Special Issue will be collected and displayed on a dedicated page of the journal’s website. Further information on MDPI's Special Issue policies and Guest Editor responsibilities can be found here. For any inquiries related to a Special Issue, please contact the Editorial Office.

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Novel Methods for the Analysis of Active and Toxic Components in Food submission deadline 10 Aug 2025 | 1 articles | Viewed by 2334 | Submission Open
Keywords: food analysis; toxic compounds; bioactive compounds; micro-extractive methods; chromatography; food safety and quality; mass spectrometry; sample preparation; validated analytical methods; green methodologies
(This special issue belongs to the Section Analysis of Food and Beverages)
Separation and Speciation of Emerging Pollutants in Soil and Groundwater
edited by
submission deadline 10 Aug 2025 | 1 articles | Viewed by 971 | Submission Open
Keywords: emerging pollutants; soil and groundwater contamination; separation technology; environmental speciation; nano-pesticides; micro-/nano-plastics; per- and polyfluoroalkyl substances (PFASs); pharmaceuticals and personal care products (PPCPs); hydrometallurgical organic reagents; organophosphorus flame retardants (OPFRs)
(This special issue belongs to the Section Environmental Separations)
Absorption, Adsorption Technologies and Materials of Industrial Exhaust
edited by Zhi Qian and Le Sang
submission deadline 10 Aug 2025 | Viewed by 163 | Submission Open
Keywords: adsorption; material; process intensification; industrial exhaust; multiple pollutants; optimization; interdisciplinary; synergy; cutting-edge
(This special issue belongs to the Section Environmental Separations)
Application of Functional Materials in Gaseous Pollutant Removal
edited by Jingcai Chang
submission deadline 10 Aug 2025 | Viewed by 89 | Submission Open
Keywords: gaseous pollutant removal; atmospheric environmental governance; innovations in functional materials; low-energy technologies; monitoring and control of gaseous pollutants; membrane separation; feasibility analysis of practical applications of functional materials
Adsorption Process in Chemical Engineering
edited by Adrian Bonilla-Petriciolet, and Hilda Elizabeth Reynel-Ávila
submission deadline 20 Aug 2025 | 2 articles | Viewed by 6445 | Submission Open
Keywords: adsorbents; depollution; energy storage; environmental remediation; intensification; modeling; adsorption engineering; process systems engineering; sustainable separation; value-added products
Green Extraction Techniques of Bioactive Compounds from Natural Sources submission deadline 20 Aug 2025 | 2 articles | Viewed by 5406 | Submission Open
Keywords: natural sources; bioactive compounds; supercritical extraction; subcritical water extraction; chromatography; spectrometry; ultrasound-assisted extraction; microwave-assisted extraction; pressurized liquid extraction; enzyme-assisted extraction; bioeconomy
(This special issue belongs to the Section Analysis of Natural Products and Pharmaceuticals)
Design and Preparation of Sustainable Separation Membrane for Efficient Water Purification
edited by and
submission deadline 20 Aug 2025 | 2 articles | Viewed by 3889 | Submission Open
Keywords: membrane separation; water purification; sustainable materials; membrane fabrication; membrane characterization; desalination; wastewater treatment; bio-based membranes; carbon-based membranes; membrane fouling
(This special issue belongs to the Section Environmental Separations)
Advances in Photocatalysis for Environmental Pollutant Removal
edited by
submission deadline 20 Aug 2025 | 1 articles | Viewed by 759 | Submission Open
Keywords: photocatalysts; semiconductors; microstructure regulation; environmental pollutants; degradation; Fenton
(This special issue belongs to the Section Environmental Separations)
Removal of Emerging Pollutants from the Environmental Matrices submission deadline 20 Aug 2025 | Viewed by 166 | Submission Open
Keywords: emerging pollutants (EPs); transformation products; wastewater treatment; micropollutants; toxicity; environmental protection; removal; sorption; separation
(This special issue belongs to the Section Environmental Separations)
Application of Advanced Materials and Technologies in the Separation and Adsorption
edited by Hao Wu
submission deadline 10 Sep 2025 | 10 articles | Viewed by 10747 | Submission Open
Keywords: advanced material; technology; separation; adsorption; pollutant treatment; efficient; low energy consumption; resource utilization
(This special issue belongs to the Section Materials in Separation Science)
Sustainable Biological Removal and Separation Processes in Wastewater Treatment
edited by , and Guoqiang Liu
submission deadline 10 Sep 2025 | Viewed by 198 | Submission Open
Keywords: wastewater treatment and reclamation; biological nutrient removal; separation and purification; emerging pollutant removal; carbon footprint mitigation; resource recovery
(This special issue belongs to the Section Environmental Separations)
Perspectives on Water Treatment and Desalination
edited by Jiapeng Liu
submission deadline 10 Sep 2025 | Viewed by 115 | Submission Open
Keywords: water treatment; desalination; separation science; chemical engineering; environmental science; energy consumption; innovative electrode material
(This special issue belongs to the Section Environmental Separations)
New Approaches to Phosphorus Pollutant Control and Phosphorus Recovery
edited by Xuejiao Tang
submission deadline 10 Sep 2025 | Viewed by 105 | Submission Open
Keywords: phosphorus resource recovery; purification; crystallization separation; catalytic decomposition; high value-added
(This special issue belongs to the Section Environmental Separations)
Green Separation and Purification Technology
edited by
submission deadline 20 Sep 2025 | 6 articles | Viewed by 7672 | Submission Open
(This special issue belongs to the Section Separation Engineering)
Recent Developments in Chemical Analysis of Bioactive Constituents of Plants and Plant Extracts submission deadline 20 Sep 2025 | Viewed by 162 | Submission Open
Keywords: plant extract; bioactive constituents; food chemistry; method development; magnetic resonance spectroscopy; mass spectrometry; natural products
(This special issue belongs to the Section Analysis of Natural Products and Pharmaceuticals)
Mapping Drug Fate and Activity: Chromatographic Strategies in Drug Research
edited by and Pedro F. Pinheiro
submission deadline 20 Sep 2025 | Viewed by 156 | Submission Open
Keywords: drug metabolism; pharmacokinetics; chromatographic techniques; bioanalysis; analytical method development; drug toxicity
(This special issue belongs to the Section Bioanalysis/Clinical Analysis)
Photoelectrocatalytic Organic Pollutant Degradation and Water Splitting
edited by Xingming Ning
submission deadline 30 Sep 2025 | Viewed by 61 | Submission Open
Keywords: interface charge transfer; organic pollutant degradation; photoelectrocatalytic; photogenerated charge carrier; charge separation; water splitting
(This special issue belongs to the Section Environmental Separations)
Research on New Technology and Equipment of Multiphase Flow Separation
edited by Chencan Du and
submission deadline 10 Oct 2025 | 4 articles | Viewed by 6306 | Submission Open
Keywords: multiphase flow; separation technology; equipment design; process intensification; fluid dynamics; computational modeling; mass transfer; sustainable processes; environmental impact
(This special issue belongs to the Section Separation Engineering)
Determination and Quantification of Pharmaceuticals Using Chromatography Methods submission deadline 10 Oct 2025 | 1 articles | Viewed by 874 | Submission Open
Keywords: chromatography; method validation; drug analysis; pharmaceutical analysis; analytical method development; pharmaceutical formulations; mass spectrometry
(This special issue belongs to the Section Analysis of Natural Products and Pharmaceuticals)
Green Extraction of Natural Products for Application in Pharmaceuticals, Foods, Cosmetics and Agriculture
edited by , Esther Ramirez Moreno and
submission deadline 10 Oct 2025 | 1 articles | Viewed by 731 | Submission Open
Keywords: plant species sources; orchids; primary metabolites; secondary metabolites; essential oils; fragrances; antioxidant activity; pharmaceutical application; nutraceutical application; molecular nutrition; intestinal bioaccessibility; agricultural uses
(This special issue belongs to the Section Analysis of Natural Products and Pharmaceuticals)
Membrane Separation Process for Water Treatment
edited by Fang Li
submission deadline 10 Oct 2025 | 1 articles | Viewed by 602 | Submission Open
Keywords: advanced separation techniques; resource recovery; environmental conservation; water treatment; membrane separation process
(This special issue belongs to the Section Materials in Separation Science)
Electrochemical Separation and Recovery Technology in Wastewater Treatment
edited by
submission deadline 10 Oct 2025 | Viewed by 141 | Submission Open
Keywords: electrochemical wastewater treatment; resource recovery; electrooxidation; electroreduction; heavy metal complexes; nitrate; phosphorus; electro-Fenton
(This special issue belongs to the Section Environmental Separations)
Innovative Sustainable Methods for Food Component Extraction
edited by , Zorica Stojanovic and Ana Đurović
submission deadline 10 Oct 2025 | Viewed by 87 | Submission Open
Keywords: sustainable separation; food extraction; environmental responsibility; resource minimization; innovative techniques; bioactive compounds; functional foods
(This special issue belongs to the Section Analysis of Food and Beverages)
Advances in Separation and Leaching for Metal Recovery
edited by Yun Li and
submission deadline 15 Oct 2025 | Viewed by 57 | Submission Open
Keywords: metal recovery; separation; leaching; efficiency; selectivity; sustainable recovery
(This special issue belongs to the Section Separation Engineering)
Solid Waste Recycling and Strategic Metal Extraction
edited by , , and Chunlin He
submission deadline 20 Oct 2025 | 2 articles | Viewed by 1566 | Submission Open
Keywords: solid waste; biomass; adsorption material; wastewater treatment; strategic metal resources
(This special issue belongs to the Section Separation Engineering)
Separation Techniques for the Enrichment and Extraction of Rare Earth Elements
edited by Hongpeng Fan
submission deadline 20 Oct 2025 | Viewed by 98 | Submission Open
Keywords: rare earth elements (REEs); separation techniques; environmentally friendly processes; sustainability innovative approaches
(This special issue belongs to the Section Separation Engineering)
Application of Advanced Oxidation Processes (AOPs) in Wastewater Treatment
edited by Hongwei Sun
submission deadline 20 Oct 2025 | Viewed by 96 | Submission Open
Keywords: advanced oxidation processes; wastewater; catalysts; emerging pollutants; recalcitrant pollutants; cost evaluation; durability
(This special issue belongs to the Section Environmental Separations)
Isolation and Identification of Biologically Active Natural Compounds submission deadline 10 Nov 2025 | 5 articles | Viewed by 8702 | Submission Open
Keywords: plants; by-products; bioactive compounds; isolation methods; chromatography; antioxidant activity; antimicrobial activity; bioavailable compounds; nutraceuticals
(This special issue belongs to the Section Analysis of Natural Products and Pharmaceuticals)
Chemical and Contaminant Residue Analysis via Chromatography submission deadline 10 Nov 2025 | 3 articles | Viewed by 5404 | Submission Open
Keywords: liquid chromatography; gas chromatography; contaminants; residues; volatile organic compounds; mass spectrometry; food; environment; biological fluids; regulatory compliance; risk assessment
(This special issue belongs to the Section Chromatographic Separations)
Separation Techniques on a Miniaturized Scale
edited by and Deyber Arley Vargas Medina
submission deadline 10 Nov 2025 | 3 articles | Viewed by 5220 | Submission Open
Keywords: miniaturized sample preparation; sorbent-based microextraction; solvent-based microextraction; miniaturized instrumentation; green analytical chemistry; liquid chromatography; gas chromatography; open tubular liquid chromatography; capillary electrophoresis; microfluidic devices
(This special issue belongs to the Section Chromatographic Separations)
State of the Art and Challenges in the Analysis of Volatile Organic Compounds
edited by Jérôme Vial and
submission deadline 10 Nov 2025 | 1 articles | Viewed by 387 | Submission Open
Keywords: GC-MS; GCxGC; headpsace techniques; chemometrics; volatolomic; scent sampling; aroma; thermodeorption
(This special issue belongs to the Section Chromatographic Separations)
Innovative Separation Techniques for Adsorption and Control of Soil and Water Contaminants
edited by Niloofar Karimian
submission deadline 10 Nov 2025 | Viewed by 200 | Submission Open
Keywords: adsorption; soil and water remediation; contaminants; heavy metals; PFAS; biochar; nanomaterials; hybrid technologies; synchrotron spectroscopy; sustainable materials; separation techniques; environmentally friendly processes; sustainability innovative approaches
(This special issue belongs to the Section Purification Technology)
Eco-Friendly Innovations for Water Purification: Advanced Oxidation and Sustainable Cleanup Solutions submission deadline 10 Nov 2025 | Viewed by 109 | Submission Open
Keywords: environmental pollution; water contamination; sustainable water treatment; advanced oxidation processes; electrochemical advanced oxidation processes; organic pollutant removal; green nanotechnology; bioinspired materials
(This special issue belongs to the Section Environmental Separations)
Advanced Separation Technology for Sludge Wastewater Treatment and Resource Utilization
edited by Bingdi Cao
submission deadline 10 Nov 2025 | Viewed by 104 | Submission Open
Keywords: sludge; solid– liquid separation; dewatering agent; extracellular polymeric substances (EPSs); electro-dewatering; coagulants
(This special issue belongs to the Section Purification Technology)
Graphene-Based Nanocomposites for Efficient Remediation of Emerging Organic Pollutants (EOPs) and Heavy Metals Contaminated Water submission deadline 10 Nov 2025 | Viewed by 66 | Submission Open
Keywords: nanophotocatalysts; nanoadsorbents; emerging pollutants; heavy metals; polyaromatic hydrocarbon compound; nanoparticles/composite nanoadsorbents; endocrine-disrupting chemicals; nanophotocatalysis; rGO-based metallic photocatalyst; adsorption modelling
(This special issue belongs to the Section Environmental Separations)
Removal of Volatile Organic Compounds by Adsorption/Catalytic Methods submission deadline 15 Nov 2025 | Viewed by 611 | Submission Open
Keywords: VOC; adsorption; catalytic; natural materials; composite materials; mixtures
(This special issue belongs to the Section Separation Engineering)
New Directions in Nanostructured Hybrid Materials for Selective Separations and Catalysis submission deadline 20 Nov 2025 | 1 articles | Viewed by 1160 | Submission Open
Keywords: nanostructured hybrid materials; photochemical processes; liquid/air pollutant treatments; surface functionalization; multifunctional coatings
(This special issue belongs to the Section Materials in Separation Science)
Application of Nanoparticles in Selective Separation and Extraction submission deadline 20 Nov 2025 | Viewed by 241 | Submission Open
Keywords: nanoparticles (NPs); selective separation; extraction; adsorption; magnetic nanoparticles (MNPs); catalytic processes; membrane technologies; environmental remediation; biotechnology; chemical engineering
(This special issue belongs to the Section Materials in Separation Science)
Research on Separation Techniques for Metabolomics and Pharmacokinetics Analysis
edited by Mamunur Rashid
submission deadline 20 Nov 2025 | Viewed by 102 | Submission Open
Keywords: metabolomics; pharmacokinetics; mass spectrometry; UPLC; supercritical fluid chromatography (SFC); separation technology; biomarker discovery; personalized medicine
(This special issue belongs to the Section Bioanalysis/Clinical Analysis)
Applications of Adsorbent Materials in Water and Wastewater Treatment
edited by Dragana Živojinović
submission deadline 20 Nov 2025 | Viewed by 100 | Submission Open
Keywords: adsorption; biosorbent; biomass-derived material; waste materials; eco-friendly adsorbents; water treatment; pollutant removal; organic pollutants; inorganic pollutants
(This special issue belongs to the Section Materials in Separation Science)
Extraction and Pharmaceutical Application of Phytochemicals submission deadline 20 Nov 2025 | Viewed by 90 | Submission Open
Keywords: natural products; phytochemicals; pharmacognosy; secondary metabolites; phytopharmaceuticals; phytotherapy
(This special issue belongs to the Section Analysis of Natural Products and Pharmaceuticals)
Separation Technology Applications in Sample Preparation for Environmental Analysis
edited by and Hongjie Sheng
submission deadline 20 Nov 2025 | Viewed by 59 | Submission Open
Keywords: environmental samples; quantitative analysis; extraction; separation technology; analytical methods; chromatography
(This special issue belongs to the Section Environmental Separations)
New and Modified Polymers for Detection and Removal of Pollutants from Water and Air
edited by Aleksandra Nastasović and
submission deadline 30 Nov 2025 | 2 articles | Viewed by 1465 | Submission Open
Keywords: polymers and composites; molecularly imprinted polymers; adsorption mechanism; thermodynamic and kinetic analysis of adsorption; quantum modeling and simulation; radionuclides; organic and inorganic pollutants; CO2 capture; gas separation
(This special issue belongs to the Section Materials in Separation Science)
Advances in Novel Beneficiation Technology of Critical Minerals
edited by Jue Kou
submission deadline 30 Nov 2025 | 1 articles | Viewed by 779 | Submission Open
Keywords: critical minerals; ore beneficiation; sensor-based ore sorting; flotation; gravity separation; magnetic separation; leaching
(This special issue belongs to the Section Environmental Separations)
Novel Functional Separation Materials for Water Treatment
edited by and
submission deadline 30 Nov 2025 | Viewed by 75 | Submission Open
Keywords: advanced oxidation processes; nanomaterials for water treatment; membrane technology; electrochemical water treatment; sustainable water purification; contaminant removal; resource recovery; hybrid treatment systems; bio-based adsorbents; water– energy nexus
(This special issue belongs to the Section Materials in Separation Science)
Application of Sustainable Separation Techniques in Food Processing
edited by Beatriz Cervejeira Bolanho Barros and Huafeng Zhang
submission deadline 10 Dec 2025 | 5 articles | Viewed by 4049 | Submission Open
Keywords: sustainable process; extraction; distillation; centrifugation; filtration; decantation; bioactive compounds
(This special issue belongs to the Section Analysis of Food and Beverages)
Chromatographic Methods for Environment, Biota and Food Contaminants Analysis
edited by Melinda Haydee Kovács and Emőke Dalma Kovács
submission deadline 10 Dec 2025 | 2 articles | Viewed by 2526 | Submission Open
Keywords: Gas chromatography; Liquid chromatography; Detectors (including mass spectrometer); Extraction procedures; Purification techniques; Environmental samples; Biological samples
(This special issue belongs to the Section Chromatographic Separations)
Removal of Organic Pollutants from Aqueous Systems
edited by Li Yan
submission deadline 10 Dec 2025 | 1 articles | Viewed by 1684 | Submission Open
Keywords: organic pollutants; PFAS; adsorption; degradation; mechanisms; modeling; aquatic chemistry; interfacial processes; advanced materials; water treatment
(This special issue belongs to the Section Environmental Separations)
Separation and Recovery Technology for Mineral Flotation and Solid Waste
edited by Yujin Sun and
submission deadline 10 Dec 2025 | 2 articles | Viewed by 1278 | Submission Open
Keywords: separation technology; mineral flotation; coal-based waste; resource recovery; sustainable practices; environmental impact; adhesion force; novel reagents; bubble– particle; wetting
(This special issue belongs to the Section Separation Engineering)
Mineral Processing and Separation: Research, Innovation and Production
edited by
submission deadline 10 Dec 2025 | 1 articles | Viewed by 1205 | Submission Open
Keywords: magnetic separation; flotation; gravity separation; electric separation; separation modeling; ore purification
(This special issue belongs to the Section Separation Engineering)
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