All Stories

  1. Activated carbons from Baru (Dipteryx alata Vog.) waste impregnated with copper oxide: application in the postharvest preservation of bananas

    Article • Food Science and Technology, August 2025, Zeppelini Editorial e Comunicacao

    Dr. Héctor Valdés

  2. Demonstrating the substitutional doping of erbium (Er) in BiFeO3 nanoparticles for the enhanced solar-driven photocatalytic activity

    Article • Journal of Physics and Chemistry of Solids, April 2025, Elsevier

    Dr. Héctor Valdés , Dr Sakar Mohan

  3. Harnessing the synergistic effect of CuO@Fe3O4/n-Si for high-efficiency photodiodes

    Article • Journal of Physics and Chemistry of Solids, January 2025, Elsevier

    Dr. Héctor Valdés , Dr Sakar Mohan

  4. Exploring the antimicrobial activity of hydrothermally synthesized copper pyrophosphate nanoflakes

    Article • Journal of the Indian Chemical Society, November 2024, Elsevier

    Dr. Héctor Valdés

  5. Z-scheme driven charge transfer in g-C3N4/α-Fe2O3 nanocomposites enabling photocatalytic degradation of crystal violet and chromium reduction

    Article • Surfaces and Interfaces, November 2024, Elsevier

    Dr. Héctor Valdés , Dr Sakar Mohan

  6. Building a novel noble metal-free Cu3P/ZnS/g-C3N4 ternary nanocomposite with multi interfacial charge transfer pathways for highly enhanced photocatalytic water splitting

    Article • Fuel, September 2024, Elsevier

    Dr. Héctor Valdés

  7. Praseodymium doping-induced band structure tunning in bismuth ferrite (Bi1-Pr FeO3) nanofibers for the enhanced photocatalytic properties

    Article • Surfaces and Interfaces, September 2024, Elsevier

    Dr. Héctor Valdés , Dr Sakar Mohan

  8. Ethylene Elimination Using Activated Carbons Obtained from Baru (Dipteryx alata vog.) Waste and Impregnated with Copper Oxide

    Article • Molecules, June 2024, MDPI AG

    Dr. Héctor Valdés

  9. Sustainable synthesis, superior performance: Nanoflower-like α-Bi2O3 from solvent-free solid state for photocatalytic crystal violet degradation

    Article • Journal of the Taiwan Institute of Chemical Engineers, April 2024, Elsevier

    Dr. Héctor Valdés

  10. Impact of Copper(II)-Imidazole Complex Modification on Polycrystalline TiO2: Insights into Formation, Characterization, and Photocatalytic Performance

    Article • Catalysts, February 2024, MDPI AG

    Dr. Héctor Valdés

  11. Goethite (α-FeOOH) nanoparticles wrapped on reduced graphene oxide nanosheet for sensitive electrochemical detection of arsenic(III)

    Article • Ceramics International, February 2024, Elsevier

    Dr. Héctor Valdés

  12. Ferrihydrite − Graphene oxide foams as an efficient adsorbent for Arsenic(III) removal from an aqueous solution

    Article • Inorganic Chemistry Communications, July 2023, Elsevier

    Dr. Héctor Valdés

  13. Synergistic impact of nanoarchitectured GQDs-AgNCs(APTS) modified glassy carbon electrode in the electrochemical detection of guanine and adenine

    Article • Journal of Electroanalytical Chemistry, April 2023, Elsevier

    Dr. Héctor Valdés , Dr Anandan sambandam

  14. Evidence of Synergy Effects between Zinc and Copper Oxides with Acidic Sites on Natural Zeolite during Photocatalytic Oxidation of Ethylene Using Operando DRIFTS Studies

    Article • Catalysts, March 2023, MDPI AG

    Dr. Héctor Valdés

  15. The Effect of Visible Light on the Postharvest Life of Tomatoes (Solanum lycopersicum L.)

    Article • Horticulturae, January 2023, MDPI AG

    Dr. Héctor Valdés

  16. Investigation of photo-/electrocatalytic activity of hydrothermal synthesized novel copper ion-modulated bifunctional NiTe2 nanoflakes

    Article • Surfaces and Interfaces, August 2022, Elsevier

    Dr. Héctor Valdés

  17. Synthesis of BiOI/Mordenite Composites for Photocatalytic Treatment of Organic Pollutants Present in Agro-Industrial Wastewater

    Article • Nanomaterials, March 2022, MDPI AG

    Dr. Héctor Valdés

  18. Regeneration of odorous sulphur compound-exhausted activated carbons using wet peroxide oxidation: The impact of chemical surface characteristics

    Article • Process Safety and Environmental Protection, December 2021, Elsevier

    Dr. Héctor Valdés

  19. Novel MoSe2–Ni(OH)2 nanocomposite as an electrocatalyst for high efficient hydrogen evolution reaction

    Article • International Journal of Hydrogen Energy, September 2021, Elsevier

    Dr. Héctor Valdés

  20. Catalytic Ozonation of Toluene over Acidic Surface Transformed Natural Zeolite: A Dual-Site Reaction Mechanism and Kinetic Approach

    Article • Catalysts, August 2021, MDPI AG

    Dr. Serguei Alejandro-Martín, Dr. Héctor Valdés

  21. Biocidal activity of citrus limetta peel extract mediated green synthesized silver quantum dots against MCF-7 cancer cells and pathogenic bacteria

    Article • Journal of Environmental Chemical Engineering, April 2021, Elsevier

    Dr. Héctor Valdés

  22. Treatment of landfill leachates from Fez city (Morocco) using a sequence of aerobic and Fenton processes

    Article • Scientific African, July 2020, Elsevier

    Dr. Héctor Valdés

  23. Ethylene removal by adsorption to improve shelf-life of tomatoes

    Article • Crystals, June 2020, MDPI AG

    Dr. Héctor Valdés , Dr Johannes P.F. de Bruijn

  24. Recent Advancements in the Understanding of the Surface Chemistry in TiO2 Photocatalysis

    Article • Surfaces, February 2020, MDPI AG

    Dr. Héctor Valdés

  25. Microwave-assisted synthesis of localized surface plasmon resonance enhanced bismuth selenide (Bi2Se3) layers for non-enzymatic glucose sensing

    Article • Journal of Electroanalytical Chemistry, November 2019, Elsevier

    Dr. Héctor Valdés

  26. New insight of the influence of acidic surface sites of zeolite on the ability to remove gaseous ozone using operando DRIFTS studies

    Article • Microporous and Mesoporous Materials, November 2019, Elsevier

    Dr. Héctor Valdés

  27. Oxygen vacancies in nano-sized TiO2 anatase nanoparticles

    Article • Solid State Ionics, October 2019, Elsevier

    Dr. Héctor Valdés

  28. Design of active sites in zeolite catalysts using modern semiempirical methods: The case of mordenite

    Article • Computational and Theoretical Chemistry, October 2019, Elsevier

    Dr. Héctor Valdés

  29. Simultaneous electrochemical determination of dopamine and epinephrine using gold nanocrystals capped with graphene quantum dots in a silica network

    Article • Microchimica Acta, September 2019, Springer Science + Business Media

    Dr. Héctor Valdés , Dr Anandan sambandam

  30. Insights into the visible light photocatalytic activity of S-doped hydrated TiO2

    Article • International Journal of Hydrogen Energy, July 2019, Elsevier

    Dr. Héctor Valdés

  31. Quantum size effect and visible light activity of anatase nanosheet quantum dots

    Article • Journal of Photochemistry and Photobiology A Chemistry, June 2019, Elsevier

    Dr. Héctor Valdés

  32. Self-assembled reduced graphene oxide-TiO2 nanocomposites: Synthesis, DFTB+ calculations, and enhanced photocatalytic reduction of CO2 to methanol

    Article • Carbon, June 2019, Elsevier

    Dr. Héctor Valdés

  33. Ethylene adsorption onto natural and transition metal modified Chilean zeolite: An operando DRIFTS approach

    Article • Microporous and Mesoporous Materials, January 2019, Elsevier

    Dr. Héctor Valdés

  34. Nanostructured BiOI for air pollution control: Microwave-assisted synthesis, characterization and photocatalytic activity toward NO transformation under visible light irradiation

    Article • Materials Science in Semiconductor Processing, December 2018, Elsevier

    Dr. Héctor Valdés

  35. Enhancement of ciprofloxacin degradation in aqueous system by heterogeneous catalytic ozonation

    Article • Environmental Science and Pollution Research, November 2018, Springer Science + Business Media

    Dr. Héctor Valdés

  36. Solvothermal Synthesis and Photocatalytic Activity of BiOBr Microspheres with Hierarchical Morphologies

    Article • June 2018, Slovenian Chemical Society

    Dr. Héctor Valdés

  37. Removal of textile dyes from aqueous solutions using low cost Moroccan clay

    Article • IOP Conference Series Earth and Environmental Science, June 2018, Institute of Physics Publishing

    Dr. Héctor Valdés

  38. Catalytic Ozonation of Toluene Using Chilean Natural Zeolite: The Key Role of Brønsted and Lewis Acid Sites

    Article • Catalysts, May 2018, MDPI AG

    Dr. Serguei Alejandro-Martín, Dr. Héctor Valdés

  39. New evidence of the effect of the chemical structure of activated carbon on the activity to promote radical generation in an advanced oxidation process using hydrogen peroxide

    Article • Microporous and Mesoporous Materials, March 2018, Elsevier

    Dr. Héctor Valdés

  40. Gaseous ozone decomposition over high silica zeolitic frameworks

    Article • The Canadian Journal of Chemical Engineering, February 2018, Wiley

    Dr. Héctor Valdés

  41. BiOBr microspheres for photocatalytic degradation of an anionic dye

    Article • Solid State Sciences, March 2017, Elsevier

    Dr. Héctor Valdés

  42. Role of oxygen-containing functional surface groups of activated carbons on the elimination of 2-hydroxybenzothiazole from waters in A hybrid heterogeneous ozonation system

    Article • Journal of Advanced Oxidation Technologies, January 2017, De Gruyter

    Dr. Héctor Valdés

  43. Adsorption of a cationic dye from aqueous solution using low-cost Moroccan diatomite: adsorption equilibrium, kinetic and thermodynamic studies

    Article • January 2017, Desalination Publications

    Dr. Héctor Valdés

  44. Use of combination of coagulation and adsorption process for the landfill leachate treatment from Casablanca city

    Article • January 2017, Desalination Publications

    Dr. Héctor Valdés

  45. Zeolites as recyclable adsorbents/catalysts for biogas upgrading: Removal of octamethylcyclotetrasiloxane

    Article • Chemical Engineering Journal, January 2017, Elsevier

    Dr. Héctor Valdés

  46. Toluene, Methanol and Benzaldehyde Removal from Gas Streams by Adsorption onto Natural Clay and Faujasite-Y type Zeolite

    Article • December 2016, Slovenian Chemical Society

    Dr. Héctor Valdés

  47. Synthesis and characterization of BiOI microspheres under standardized conditions

    Article • Journal of Materials Science, September 2016, Springer Science + Business Media

    Dr. Héctor Valdés

  48. Application of high silica zeolite ZSM-5 in a hybrid treatment process based on sequential adsorption and ozonation for VOCs elimination

    Article • Journal of Environmental Sciences, March 2016, Elsevier

    Dr. Héctor Valdés

  49. Removal of Benzothiazole from Contaminated Waters by Ozonation: The Role of Direct and Indirect Ozone Reactions

    Article • Journal of Advanced Oxidation Technologies, January 2016, De Gruyter

    Dr. Héctor Valdés

  50. Oxidative regeneration of toluene-saturated natural zeolite by gaseous ozone: The influence of zeolite chemical surface characteristics

    Article • Journal of Hazardous Materials, June 2014, Elsevier

    Dr. Héctor Valdés , Dr. Serguei Alejandro-Martín

  51. Control of released volatile organic compounds from industrial facilities using natural and acid-treated mordenites: The role of acidic surface sites on the adsorption mechanism

    Article • Chemical Engineering Journal, May 2014, Elsevier

    Dr. Héctor Valdés

  52. Role of Lewis acid sites of ZSM-5 zeolite on gaseous ozone abatement

    Article • Chemical Engineering Journal, September 2013, Elsevier

    Dr. Héctor Valdés

  53. Ozonation of pentylacetate contaminated waters from textile care industry

    Article • Revista de Filosofía, January 2013, SciELO Comision Nacional de Investigacion Cientifica Y Tecnologica (CONICYT)

    Dr. Héctor Valdés

  54. Role of surface hydroxyl groups of acid-treated natural zeolite on the heterogeneous catalytic ozonation of methylene blue contaminated waters

    Article • Chemical Engineering Journal, November 2012, Elsevier

    Dr. Héctor Valdés

  55. BTX abatement using Chilean natural zeolite: the role of Brønsted acid sites

    Article • Water Science & Technology Water Supply, October 2012, IWA Publishing

    Dr. Héctor Valdés , Dr. Serguei Alejandro-Martín

  56. Natural zeolite reactivity towards ozone: The role of compensating cations

    Article • Journal of Hazardous Materials, August 2012, Elsevier

    Dr. Héctor Valdés , Dr. Serguei Alejandro-Martín

  57. Methylene blue removal from contaminated waters using heterogeneous catalytic ozonation promoted by natural zeolite: mechanism and kinetic approach

    Article • Environmental Technology, August 2012, Taylor & Francis

    Dr. Héctor Valdés

  58. Influence of Volcanic Sand Surface Hydroxyl Groups on the Heterogeneous Catalytic Ozonation of Methylene Blue Contaminated Waters

    Article • January 2012, De Gruyter

    Dr. Héctor Valdés

  59. Impacto del tratamiento con ozono sobre las propiedades superficiales del carbón activado

    Article • Ingeniare Revista chilena de ingeniería, August 2011, SciELO Comision Nacional de Investigacion Cientifica Y Tecnologica (CONICYT)

    Dr. Héctor Valdés

  60. Influence of Chemical Surface Characteristics of Natural Zeolite on Catalytic Ozone Abatement

    Article • Ozone Science and Engineering, July 2011, Taylor & Francis

    Dr. Héctor Valdés

  61. Natural Zeolite Reactivity Towards Ozone: The Role of Acid Surface Sites

    Article • January 2011, De Gruyter

    Dr. Héctor Valdés , Dr. Serguei Alejandro-Martín

  62. Effect of Zeolite Chemical Surface Properties on Catalytic Ozonation of Methylene Blue Contaminated Waters

    Article • Ozone Science and Engineering, September 2010, Taylor & Francis

    Dr. Héctor Valdés

  63. Heterogeneous catalytic ozonation of cationic dyes using volcanic sand

    Article • Water Science & Technology Water Supply, June 2010, IWA Publishing

    Dr. Héctor Valdés

  64. INFLUENCIA DE LA COMPOSICIÓN QUÍMICA SUPERFICIAL DEL CARBÓN ACTIVADO EN LA ADSORCIÓN DE BENZOTIAZOLES

    Article • Ingeniare Revista chilena de ingeniería, April 2010, SciELO Comision Nacional de Investigacion Cientifica Y Tecnologica (CONICYT)

    Dr. Héctor Valdés

  65. ELIMINACIÓN DE COLORANTES CATIÓNICOS USANDO OZONO, ZEOLITA NATURAL Y OZONO/ZEOLITA

    Article • Ingeniare Revista chilena de ingeniería, December 2009, SciELO Comision Nacional de Investigacion Cientifica Y Tecnologica (CONICYT)

    Dr. Héctor Valdés

  66. Methylene blue removal from contaminated waters using O3, natural zeolite, and O3/zeolite

    Article • Water Science & Technology Water Supply, September 2009, IWA Publishing

    Dr. Héctor Valdés

  67. Catalytic ozone aqueous decomposition promoted by natural zeolite and volcanic sand

    Article • Journal of Hazardous Materials, June 2009, Elsevier

    Dr. Héctor Valdés

  68. Heterogeneous catalytic ozonation of benzothiazole aqueous solution promoted by volcanic sand

    Article • Journal of Hazardous Materials, May 2008, Elsevier

    Dr. Héctor Valdés

  69. Heterogeneous and homogeneous catalytic ozonation of benzothiazole promoted by activated carbon: Kinetic approach

    Article • Chemosphere, November 2006, Elsevier

    Dr. Héctor Valdés

  70. Ozonation of benzothiazole saturated-activated carbons: Influence of carbon chemical surface properties

    Article • Journal of Hazardous Materials, September 2006, Elsevier

    Dr. Héctor Valdés

  71. Effect of Ozone Treatment on Surface Properties of Activated Carbon

    Article • Langmuir, March 2002, American Chemical Society (ACS)

    Dr. Héctor Valdés