Papers

2025

Α64. Gkika, D.A.; Tolkou, A.K.; Katsoyiannis, I.A.; Kyzas, G.Z. The Adsorption-Desorption-Regeneration Pathway to a Circular Economy : The Role of Waste-Derived Adsorbents on Chromium Removal. Sep. Purif. Technol. 2025, 132996, doi:10.1016/j.seppur.2025.132996.

Α63. Malouchi, N.; Tolkou, A.K.; Maroulas, K.N.; Kosheleva, R.I.; Kostoglou, M.; Katsoyiannis*, I.A.; Kyzas*, G.Z. Colloids and Surfaces A: Physicochemical and Engineering Aspects Polyphenolic Derivatives of Chitosan as Adsorbents for the Removal of Ibuprofen from Pharmaceutical Solutions. Colloids Surfaces A Physicochem. Eng. Asp. 2025, 715, 136647, doi:10.1016/j.colsurfa.2025.136647.

Α62. Kouzoutzoglou-Efremidou A., Tolkou* A.K., Maroulas K.N., Kosheleva R.I., Katsoyiannis I.A., Kyzas* G.Z. Interfacial adsorption interactions of dyes and chitosan/activated carbon@curcumin derivatives in singe-component and binary solutions, Langmuir 2025 41 (5), 3603-3622. 10.1021/acs.langmuir.4c04769.

2024

Α61. Malouchi, N.; Tolkou, A.K.*; Kyzas, G.Z.*; Katsoyiannis, I.A. Ibuprofen Removal by Aluminum-Modified Activated Carbon (AC@Al) Derived from Coconut Shells. Appl. Sci. 2024, 14, 9929. https://doi.org/10.3390/app14219929.

Α60. Karaeva* A., Ivascu, L., Tolkou A.K., Torretta V. Rada E.C., THE ROLE OF THE PUBLIC IN THE IMPLEMENTATION OF NATIONAL ENERGY POLICY OBJECTIVES. WIT Transactions on Ecology and the Environment 2024, 262, 969 - 979. https://doi:10.2495/SDP240801.

Α59. Malouchi, N.; Tolkou, A.K.*; Maroulas, K.N.; Katsoyiannis, I.A.; Kyzas, G.Z.* Removal of Ibuprofen from Aqueous Solutions by Using Graphene Oxide@MgO. J. Compos. Sci. 2024, 8, 434. https://doi.org/10.3390/jcs8100434.

Α58. Tolkou, A.K.; Posantzis, A.; Maroulas, K.N.; Kosheleva, R.I.; Koumentakou, I.; Kostoglou, M.; Kyzas, G.Z.* Fluoride Removal from Aqueous Solutions by Using Super-Adsorbents of Chitosan/Orange Peels/Activated Carbon@MgO: Synthesis, Characterization, and Adsorption Evaluation. Processes 2024, 12, 2043. https://doi.org/10.3390/pr12092043.

Α57. Baltrocchi, A.P.D.; Carnevale Miino, M.; Katsoyiannis, I.A.; Tolkou, A.K.; Maggi, L.; Rada, E.C.; Torretta, V. Assessment of environmental sustainability of drinking water treatments for arsenic removal. Resour. Conserv. Recycl. 2024, 211, 107878. https://doi.org/10.1016/J.RESCONREC.2024.107878.

Α56. Kouvalakidou, S. L.; Lazaridou, M.; Tolkou, A. K.; Bikiaris, N. D.; Liakos, E.; Kostoglou, M.; Kyzas, G. Z. Amphoteric Chitosan Derivatives for the Removal of Basic and Reactive Dyes from Aqueous Solutions. J. Mol. Liq. 2024, 411, 125779.

Α55. Tsoutsa, E.K.; Tolkou, A.K.*; Kyzas, G.Z.; Katsoyiannis, I.A. New Trends in Composite Coagulants for Water and Wastewater Treatment. Macromol 2024, 4, 509-532. https://doi.org/10.3390/macromol4030030.

Α54. Malouchi, N., Chatzimichailidou, S., Tolkou, A.K., Kyzas, G.Z., Calgaro, L., Marcomini, A., Katsoyiannis*, I.A. The Removal of Per- and Poly-Fluoroalkyl Substances from Water: A Review on Destructive and Non-Destructive Methods. Separations 2024, 11, 122. https://doi.org/10.3390/separations11040122.

Α53. Tolkou*, A. K.; Maroulas, K. N.; Theologis, D.; Katsoyiannis, I. A. Comparison of Modified Peels : Natural Peels or Peels-Based Activated Carbons for the Removal of Several Pollutants Found in Wastewaters. C 2024, 10, 22. https://doi.org/10.3390/c10010022.

Α52. Dago-serry, Y., Maroulas, K. N., Tolkou, A. K., Kokkinos, N. K., Kyzas, G. Z. How the Chitosan Structure Can Affect the Adsorption of Pharmaceuticals from Wastewaters: An Overview. Carbohydr. Polym. Technol. Appl. 2024, 7, 100466. https://doi.org/10.1016/j.carpta.2024.100466.

Α51. Tsoutsa, E. K., Tolkou, A. K., Kyzas, G. Z., Katsoyiannis, I. A. An Update on Agricultural Wastes Used as Natural Adsorbents or Coagulants in Single or Combined Systems for the Removal of Dyes from Wastewater. Water, Air, & Soil Pollution 2024. https://doi.org/10.1007/s11270-024-06979-9.

Α50. Tolkou* A. K., Tsoutsa E. K., Katsoyiannis I. A., Kyzas* G. Z. Colloids and Surfaces A : Physicochemical and Engineering Aspects Simultaneous Removal of Anionic and Cationic Dyes on Quaternary Mixtures by Adsorption onto Banana , Orange and Pomegranate Peels. Colloids Surfaces A Physicochem. Eng. Asp. 2024, 685, 133176. https://doi.org/10.1016/j.colsurfa.2024.133176.

Α49. Tolkou, A. K., Tsoutsa E. K., Kyzas G. Z., Katsoyiannis* I. A. Sustainable Use of Low ‑ Cost Adsorbents Prepared from Waste Fruit Peels for the Removal of Selected Reactive and Basic Dyes Found in Wastewaters. Environmental Science and Pollution Research 2024, No. 0123456789. https://doi.org/10.1007/s11356-024-31868-3.

Α48. Karaeva* A., Ivascu, L., Tolkou, A.K., Kyzas, G.Z., Giurea R. Reducing the Negative Impact on Atmospheric Air : An Overview of Economic and Administrative and Legal Tools. MATEC Web of Conferences 2024, 389, 00066, 1–10. https://doi.org/10.1051/matecconf/202438900066.

Α47. Gkika D.A., Tolkou A.K., Lambropoulou D.A., Bikiaris B.N., Kokkinos P., Kalavrouziotis I.K., Kyzas* G.Z. Application of Molecularly Imprinted Polymers (MIPs) as environmental separation tools. RSC Applied Polymers 2024, DOI: 10.1039/D3LP00203A.

Α46. Dago-Serry Y., Maroulas K.N., Tolkou, A.K., AbdelAll N., Alodhayb A.N., Khouqeer G.A., Kyzas* G.Z. Composite Super-Adsorbents of Chitosan/Activated Carbon for the Removal of Nonsteroidal Anti-Inflammatory Drug from Wastewaters. Journal of Molecular Structure, 2024, 1298 (P2), 137044. https://doi.org/10.1016/j.molstruc.2023.137044.

2023

Α45. Chalaris* M., Gkika D.A., Tolkou A.K., Kyzas G.Z. Advancements and sustainable strategies for the treatment and management of wastewaters from metallurgical industries: An Overview. Environmental Science and Pollution Research 2023, No. 0123456789. https://doi.org/10.1007/s11356-023-30891-0.

Α44. Tolkou* A.K., Toubanaki D.K., Kyzas G.Z. Detection of Arsenic, Chromium, Cadmium, Lead, and Mercury in Fish: Effects on the Sustainable and Healthy Development of Aquatic Life and Human Consumers. Sustainability. 2023, 15(23), 16242. https://doi.org/10.3390/su152316242.

Α43. Tolkou* A.K., Kyzas G.Z. Magnesium/Silica/Lanthanum@Activated Carbon for the Remediation of As(III) from Water. Environments 2023, 10(10), 171. https://doi.org/10.3390/environments10100171.

Α42. Tsoutsa E.K., Tolkou* A.K., Katsoyiannis I.A., Kyzas G.Z. Composite Activated Carbon Modified with AlCl3 for the Effective Removal of Reactive Black 5 Dye from Wastewaters. Journal of Composites Science 2023, 7(6), 224. https://doi.org/10.3390/jcs7060224.

Α41. Tolkou A.K., Zouboulis* A.I. Fluoride Removal from Water Sources by Adsorption on MOFs. Separations 2023, 10(9), 467. https://doi.org/10.3390/separations10090467.

Α40. Tolkou A.K., Mitropoulos A.C., Kyzas* G.Z. Removal of anthraquinone dye from wastewaters by hybrid modified activated carbons. Environmental Science and Pollution Research 2023, 30, 73688–73701 https://doi.org/10.1007/s11356-023-27550-9.

Α39. Gkika* D.A., Tolkou A.K., Evgenidou E., Bikiaris D.N., Lambropoulou, D.A., Mitropoulos A.C., Kalavrouziotis I.K., Kyzas* G.Z. Fate and Removal of Microplastics from Industrial Wastewaters. Sustainability 2023, 15(8), 6969. https://doi.org/10.3390/su15086969.

Α38. Chatzimichailidou S., Xanthopoulou M., Tolkou A.K., Katsoyiannis* I.A. Biochar Derived from Rice by-Products for Arsenic and Chromium Removal by Adsorption: A Review. Journal of Composites Science 2023, 7(2), 59. https://doi.org/10.3390/jcs7020059.

Α37. Karaeva A., Ionescu G., Cioca L.I., Tolkou* A., Katsoyiannis I., Kyzas G. Environmental sustainability for traditional energy small and medium enterprises. Environmental Science and Pollution Research 2023, 47822–47831, https://doi.org/10.1007/s11356-023-25718-x.

Α36. Tolkou* A.K., Trikkaliotis D.G., Kyzas G.Z., Katsoyiannis I.A., Deliyanni E.A. Simultaneous Removal of As(III) and Fluoride Ions from Water Using Manganese Oxide Supported on Graphene Nanostructures (GO-MnO2). Sustainability 2023, 15(2), 1179. https://doi.org/10.3390/su15021179.

Α35. Tolkou* A.K., Rada E.C., Torretta V., Xanthopoulou M., Kyzas G.Z., Katsoyiannis I.A. Removal of Arsenic(III) from Water with a Combination of Graphene Oxide (GO) and Granular Ferric Hydroxide (GFH) at the Optimum Molecular Ratio. C 2023, 9(1), 10. https://doi.org/10.3390/c9010010.

Α34. Tolkou* A.K., Trikalioti S., Makrogianni O., Trikkaliotis D.G., Deliyanni E.A., Kyzas G.Z., Katsoyiannis I.A. Magnesium modified activated carbons derived from coconut shells for the removal of fluoride from water. Sustainable Chemistry and Pharmacy 2023, 31, 100898. https://doi.org/10.1016/j.scp.2022.100898.

Α33. Karaeva* A., Tolkou A., Cioca L.I., Lakatos E.S. Family ISO 14000 Standards as a Tool of Achieving Environmental Sustainability of Enterprises. IOP Conference Series: Earth and Environmental Science 2023, 1126. https://doi.org/10.1088/1755-1315/1126/1/012036.

2022

Α32. Kyzas* G.Z., Tolkou A.K., Al Musawi T.J., Mengelizadeh N., Mohebi S. Fluoride Removal from Water by Using Green Magnetic Activated Carbon Derived from Canola Stalks. Water, Air, & Soil Pollution 2022, 233(10), 424. https://doi.org/10.1007/s11270-022-05900-6.

Α31. Karaeva* A., Ionescu G., Cioca L.I., Tolkou A. Role of EU and non-EU universities in achieving environmental sustainability. MATEC Web of Conferences 2022, 00073, 1–9. https://doi.org/10.1051/matecconf/202237300073.

Α30. Trikkaliotis D.G., Ainali N.M., Tolkou A.K., Mitropoulos A.C., Lambropoulou D.A., Bikiaris* D.N., Kyzas* G.Z. Removal of Heavy Metal Ions from Wastewaters by Using Chitosan/Poly (Vinyl Alcohol) Adsorbents: A Review. Macromol 2022, 6, 2(3), 403-25. https://doi.org/10.3390/macromol2030026.

Α29. Tolkou* A.K., Vaclavikova M., Gallios GP. Impregnated Activated Carbons with Binary Oxides of Iron-Manganese for Efficient Cr (VI) Removal from Water. Water, Air, & Soil Pollution 2022, 233(8), 233-343 https://doi.org/10.1007/s11270-022-05826-z.

Α28. Tolkou A.K., Kyzas G.Z., Katsoyiannis* I.A. Arsenic (III) and Arsenic (V) Removal from Water Sources by Molecularly Imprinted Polymers (MIPs): A Mini Review of Recent Developments. Sustainability 2022, 14(9), 5222; https://doi.org/10.3390/su14095222.

Α27. Tolkou* A.K., Trikalioti S., Makrogianni O., Xanthopoulou M., Deliyanni E.A., Katsoyiannis I.A., Kyzas* G.Z. Chromium(VI) Removal from Water by Lanthanum Hybrid Modified Activated Carbon Produced from Coconut Shells. Nanomaterials 2022, 12(7), 1067. https://doi.org/10.3390/nano12071067.

2021

Α26. Rada E.C., Tolkou A., Katsoyiannis I., Magaril E., Kiselev A., Conti F., Schiavon M., Torretta* V. EVALUATING GLOBAL MUNICIPAL SOLID WASTE MANAGEMENT EFFICIENCY from A CIRCULAR ECONOMY POINT of VIEW. WIT Transactions on Ecology and the Environment 2021, 253, 207-218. https://doi.org/10.2495/SC210181.

A25. Tolkou* A.K., Meez E., Kyzas G.Z., Torretta V., Collivignarelli M.C., Caccamo F.M., Deliyanni E.A., Katsoyiannis I.A. A Mini Review of Recent Findings in Cellulose-, Polymer- and Graphene-Based Membranes for Fluoride Removal from Drinking Water. C 2021, 7(4), 74. https://doi.org/10.3390/c7040074.

A24. Meez E., Tolkou A.K., Giannakoudakis D.A, Katsoyiannis* I.A, Kyzas G.Z. Activated Carbons for Arsenic Removal from Natural Waters and Wastewaters: A Review. Water 2021, 13(21), 2982. https://doi.org/10.3390/w13212982.

A23. Torretta V., Tolkou* A.K., Katsoyiannis I.A., Caccamo F.M., Miino M.C., Baldi M., Collivignarelli M.C. Enhancement of Methanogenic Activity in Volumetrically Undersized Reactor by Mesophilic Co-Digestion of Sewage Sludge and Aqueous Residue. Sustainability 2021, 13(14), 7728. https://doi.org/10.3390/su13147728.

A22. Tolkou A.K., Manousi N., Zachariadis G.A., Katsoyiannis* I.A., Deliyanni* E.A. Recently Developed Adsorbing Materials for Fluoride Removal from Water and Fluoride Analytical Determination Techniques: A Review. Sustainability 2021, 13(3), 7061. https://doi.org/10.3390/su13137061.

A21. Rahdar S., Rahdar* A., Sattari M., Hafshejani L.D., Tolkou A.K., Kyzas* G.Z. Barium/Cobalt@Polyethylene Glycol Nanocomposites for Dye Removal from Aqueous Solutions. Polymers 2021, 13(7), 1161. https://doi.org/10.3390/polym13071161.

A20. Metaxa* Z.S., Tolkou, A.K., Efstathiou S., Rahdar A., Favvas E.P., Mitropoulos A.C., Kyzas* G.Z. Nanomaterials in Cementitious Composites: An Update. Molecules 2021, 26(5), 1430. https://doi.org/10.3390/molecules26051430.

2020

A19. Tolkou* A.K., Zouboulis A.I. Graphene Oxide/Fe-Based Composite Pre-Polymerized Coagulants: Synthesis, Characterization and Potential Application in Water Treatment. C 2020, 6(3), 44. https://doi.org/10.3390/c6030044.

A18. Tolkou A.K., Katsoyiannis I.A., Zouboulis* A.I. Removal of Arsenic, Chromium and Uranium from Water Sources by Novel Nanostructured Materials Including Graphene-Based Modified Adsorbents: A Mini Review of Recent Developments. Applied Sciences 2020, 10(9), 3241; https://doi.org/10.3390/app10093241.

A17. Tolkou A., Zouboulis* A. Application of composite pre-polymerized coagulants for the treatment of high-strength industrial wastewaters. Water 2020, 12(5), 1258; https://doi.org/10.3390/w12051258.

A16. Torretta* V., Tolkou A., Katsoyiannis I., Schiavon M. Second-Hand Smoke Exposure Effects on Human Health: Evaluation of PM10 Concentrations in the External Areas of a University Campus. Sustainability 2020, 12(7), 2948; https://doi.org/10.3390/su12072948.

2019

A15. Tolkou A., Mitrakas M., Katsoyiannis I., Ernst E., Zouboulis* A. Fluoride removal from water by composite Al/Fe/Si/Mg pre-polymerized coagulants: Characterization and application. Chemosphere, 2019, 231, 528-537. https://doi.org/10.1016/j.chemosphere.2019.05.183.

2018

A14. Torretta V., Tolkou A., Katsoyiannis I., Katsoyiannis A., Trulli E., Magaril E., Rada* E.-C. Consumption of Free Chlorine in an Aqueduct Scheme with Low Protection: Case Study of the New Aqueduct Simbrivio-Castelli (NASC), Italy. Water 2018, 10(2), 127. https://doi.org/10.3390/w10020127.

2017

A13. Gallios* G., Tolkou A.*, Katsoyiannis I., Stefusova K., Vaclavikova M., Deliyanni E. Adsorption of Arsenate by Nano Scaled Activated Carbon Modified by Iron and Manganese Oxides. Sustainability 2017, 9(10), 1684. https://doi.org/10.3390/su9101684.

A12. Katsoyiannis* I., Tzollas N., Tolkou A., Mitrakas M., Ernst M., Zouboulis A. Use of novel composite coagulants for arsenic removal from waters-experimental insight for the application of polyferric sulfate (PFS). Sustainability 2017, 9(4), 590. https://doi.org/10.3390/su9040590.

A11. Torretta* V., Ferronato N., Katsoyiannis I., Tolkou Α., Airoldi M. Novel and Conventional Technologies for Landfill Leachates Treatment: A Review. Sustainability 2017, 9(1), 9. https://doi.org/10.3390/su9010009.

A10. Gkotsis P., Mitrakas M., Tolkou A., Zouboulis* A. Batch and continuous dosing of conventional and composite coagulation agents for fouling control in a pilot-scale MBR. Chemical Engineering Journal 2017, 311, 255–264. https://dx.doi.org/10.1016/j.cej.2016.11.099.

A9. Gkotsis P., Peleka E., Zamboulis D., Mitrakas M., Tolkou, A., Zouboulis* A. Wastewater Treatment in Membrane Bioreactors: The Use of Polyelectrolytes to Control Membrane Fouling. Environmental Processes 2017, 4, 9-21. https://doi.org/10.1007/s40710-016-0168-9.

A8. Gkotsis P.K., Batsari E.L., Peleka E.N., Tolkou A.K., Zouboulis A.I. Fouling control in a lab-scale MBR system: Comparison of several commercially applied coagulants. Journal of Environmental Management 2017, 203(2), 838-846. https://dx.doi.org/10.1016/j.jenvman.2016.03.003.

2016

A7. Raptopoulou C., Kalaitzidou K., Tolkou A., Palasantza P.A., Mitrakas M., Zouboulis* A. Phosphate Removal from Effluent of Secondary Wastewater Treatment: Characterization of Recovered Precipitates and Potential Re-use as Fertilizer. Waste and Biomass Valorization 2016, 7(4), 851-860. https://doi.org/10.1007/s12649-016-9516-2.

A6. Kalaitzidou K., Mitrakas M., Raptopoulou C., Tolkou A., Palasantza P.A., Zouboulis* A. Pilot-Scale Phosphate Recovery from Secondary Wastewater Effluents. Environmental Processes 2016, 3, 5-22. https://doi.org/10.1007/s40710-016-0139-1.

A5. Tolkou A., Zouboulis* A. Effect of climate change in WWTPs with a focus on MBR infrastructure. Desalination and Water Treatment 2016, 57 (5), 2344-2354. https://doi.org/10.1080/19443994.2015.1049403.

2015

A4. Tolkou A., Zouboulis* A. Synthesis and coagulation performance of composite poly-aluminum-ferric-silicate-chloride coagulants in water and wastewater. Desalination and Water Treatment 2015, 53(12), 3309-3318. https://doi.org/10.1080/19443994.2014.933614.

A3. Tolkou A., Zouboulis* A. Synthesis and characterization of a novel composite pre-polymerized coagulant for water and wastewater treatment. International Journal of Environmental Engineering 2015, 2(1) 50-54. https://doi.org/10.15224/978-1-63248-043-9-28.

2014

A2. Tolkou A., Zouboulis* A. Review of Recent Patents on Coagulation/Flocculation (C/F) Process: Methods and Applications with Emphasis on Phosphates Removal. Recent Patents on Materials Science 2014, 7 (2) 151-163. https://dx.doi.org/10.2174/1874464807666140714165608.

A1. Tolkou A., Zouboulis* A., Samaras P. The Incorporation of Ceramic Membranes in MBR Systems for Wastewater Treatment: Advantages and Patented New Developments. Recent Patents on Engineering 2014, 8 (1) 24-32. https://dx.doi.org/10.2174/1872212107666131126234626.