Assoc. Prof. José Joaquín Velázquez García, PhD.

Scientific background:

  • Sol-gel, Crystallization
  • Oxyfluoride and Semiconductor glass and glass-ceramics, optically active materials, porous materials
  • MOFs
  • Mxenes
  • Functional materials for optics and energy
  • Photocatalysis

International projects:

  • HORIZON 2020, WIDESPREAD-01-2016-2017-TeamingPhase2, Centre for functional and surface-functionalized glasses, 3/2017 – 2/2024, Researcher-Head of Department.
  • HORIZON-WIDERA-2022-ACCESS-04, No 101087154, Glass-ceramic innovation ecosystem for implementation of new research directions in applications, GlaCerHub, 6/2023 – 5/2027, Team member.

Structural Funds:

  • Center for functional and surface functionalized glass: “CEGLASS”, 04/2019 – 06/2023, Team member.
  • Advancement and support of R&D for „Centre for diagnostics and quality testing of materials“ in the domains of the RIS3 SK specialization, Ceditek II 313011W442, 04/2019 – 06/2023.Team member.

National projets:

  • FIS2006-02980, Luminescent nano-structured glass-ceramics: a possible new generation of integrated photonic devices, 01/01/2006-31/12/2009, Researcher
  • PIL2260902, Improving efficiency photovoltaic cells by nanomaterials, 05/10/2009-04/10/2013, Researcher
  • MAT2009-12079, Nanostructured luminescent materials for optimal use of solar energy in photovoltaic cells, 01/01/2010-31/12/2013, Researcher
  • MAT2013-42407-R, Materials for sustainable and clean energy, 01/01/2014-31/12/2016, Researcher
  • MAT2013-48246-C2-1-P/-2-P, Effect of processing on the structure and properties of glasses and glass-ceramics with photonic applications (VITROPHOTONICS), 01/01/2014 – 31/12/2017, Researcher
  • MAT2017-87035-C2-1-P/-2-P, High-optical-quality luminescent glass and glass-ceramics for photonic applications (VITROPHOTONICS Q+), 01/01/2018 – 31/12/2020, Researcher
  • VEGA 1/0431/18, The relationship between composition, structure and properties of inorganic-organic nanocomposite films for protection of materials, 01/2018-12/2021, Researcher
  • VEGA 1/0844/21, Novel binary semiconductor-based materials for Sustainable and clean energy: from synthesis to H2 generation, 01/2021-12/2024, Principal Investigator
  • VEGA 1/0045/24, Development of photoluminescence materials for non-contact optical thermometry application, 01/2024-12/2027, Principal Investigator

Publication activity:  (number of:)

  • Scientific monographs: 3
  • Chapters in monographs: 1
  • Publications in scientific journals: 70
  • Contributed lectures at conferences:+60
  • Invited lectures: 2
  • Citations: 1271
  • H-index: 22

The most significant publications :

  • 2025, Sajjadi S., Žitnan M., Iqbal M.U., MacHovský M., Núñez P., Dvoranová D., Galusek D., Klement R., Velázquez J.J. Synergistic effects of Ti3C2 MXene and ZIF-8 for efficient photocatalytic degradation of tetracycline in wastewater (2025) J. of Environmental Chemical Engineering, 13 (5), art. no. 118925, DOI: 10.1016/j.jece.2025.118925
  • 2025, Haritha A.H., Cruz M.E., Sisman O., Duran A., Galusek D., Velázquez J.J., Castro Y. Influence of annealing temperature on the photocatalytic efficiency of sol-gel dip-coated ZnO thin films in methyl orange degradation (2025) Open Ceramics, 21, art. no. 100727, DOI: 10.1016/j.oceram.2024.100727.
  • 2025, Sisman O., Smirnova O., Xia Y., Greiner-Mai N., Reupert A., Nozari V., Velazquez J.J., Galusek D., Knebel A., Wondraczek L. Overcoming the Selectivity-Sensitivity Trade-Off in Electroactive Gas Sensing Using Hybrid Glass Composites (2025) Advanced Functional Materials, 35 (10), art. no. 2416535, DOI: 10.1002/adfm.202416535
  • 2024, Rana S., Sajzew R., Smirnova O., Slowik J.B., Komal A., Velázquez J.J., Wyrwa R., Galusek D., Voigt I., Wondraczek L., Knebel A. Gas-Separating Metal-Organic Framework Membrane Films on Large-Area 3D-Printed Tubular Ceramic Scaffolds, Small Structures, 5 (5), art. no. 2300346, DOI: 10.1002/sstr.202300346.
  • 2021, Dagupati, R., Klement, R., Rajavaram, R., Velázquez, J.J., Galusek, D. In situ synthesis of β-Na5Y5F6: Er3+ crystals in oxyfluoride silicate glass for temperature sensors and their spectral conversion and optical thermometry analysis, Molecules, 26 (22), 6901, DOI: 10.3390/molecules26226901
  • 2019, Velázquez J.J., Mosa J., Gorni G., Balda R., Fernández J., Durán A., Castro Y. Novel sol-gel SiO2-NaGdF4 transparent nano-glass-ceramics, Journal of Non-Crystalline Solids, 520, art. no. 119447, DOI: 10.1016/j.jnoncrysol.2019.05.023.
  • 2018, Gorni G., Velázquez J.J., Mosa J., Balda R., Fernández J., Durán A., Castro Y. Transparent glass-ceramics produced by Sol-Gel: A suitable alternative for photonic materials, Materials, 11 (2), art. no. 212, DOI: 10.3390/ma11020212.
  • 2017, Velázquez J.J., Fernández-González R., Díaz L., Pulido Melián E., Rodríguez V.D., Núñez P. Effect of reaction temperature and sacrificial agent on the photocatalytic H2-production of Pt-TiO2, of Alloys and Compounds,721,pp.405–410, DOI: 10.1016/j.jallcom.2017.05.314

Doctoral studies:

Study part:

Inorganic technologies and materials II:

Modules: Theoretical principles of molecular spectroscopy, Nanomaterials for optical applications, Fundamentals of colloidal chemistry, Collodial systems: cheracterization and utilization, infrared and Raman Spectroscopy

Scientific part:

Supervisor of PhD. Students, Experimental work I-IX, Publication activity I and II, Active participation in a conference I and II

Previous teaching activities:

Name of the course: Physics II. Type of teaching: Laboratory work. Type of subject: Obligatory. University degree: Bachelor’s Degree in Mechanical Engineering. Hours/ECTS credits: 30. Entity: Universidad de La Laguna, Depart. of Basic Physics.

Name of the course: Physics II. Type of program: Engineering Type of teaching: Laboratory work. Type of subject: Obligatory. University degree: Bachelor’s degree in Electronics, Industrial, and Automation Engineering. Hours/ECTS credits: 30. Entity: Universidad de La Laguna, Technics School of Electronics, Industrial and Automation Engineering. Department: Depart of Basic Physics

Name of the course: Expanding Optics. Type of program: Bachelor’s degree Type of teaching: Laboratory work Type of subject: Optional. University degree: Bachelor’s degree in Physics: Applied Physics. Hours/ECTS credits 40. Entity: Universidad de La Laguna, Depart of Fundamental and Experimental Physics; Electronica and System.

Name of the course: Applied Physical Fundamentals of Engineering. Type of program: Engineering Type of teaching: Laboratory work. Type of subject: Obligatory. University degree: Degree in Nautical Engineering and Maritime Transport and Naval Radio Electronics. Hours/ECTS credits: 10 Entity: Universidad de La Laguna, Depart. Basic Physics.

Name of the course: Nanomaterials. Structural and Optical Characterization Type of program: Master in Physics: Materials Structure. Type of subject: Obligatory. End date: 2011. Hours/ECTS credits: 10 Entity: Universidad de La Laguna, Department: Depart. Basic Physics.

Extracurricular Teaching

Description of the activity: Renewable energies: present situation, basic concepts, and dimensioning facilities in Canarias, Organizing entity: FUNDACION EMPRESA-UNIVERSIDAD DE LA LAGUNA End date: 18/03/2016

Description of the activity: interdisciplinary course: Scientists, discoveries, and technological advances that have changed the world. City of activity: San Cristobal de La Laguna, Canary Islands, Spain. Organizing entity: Universidad de La Laguna Type of entity: University. End date: 09/10/2015

Description of the activity: Renewable energies: present situation, basic concepts, and dimensioning facilities in Canarias. Organizing entity: FUNDACION EMPRESA-UNIVERSIDAD DE LA LAGUNA. End date: 02/03/2015

Description of the activity: XXI century: the challenge of renewable energy and energy efficiency in the Canary Islands. Organizing entity: Universidad de La Laguna-Ayuntamiento de Adeje. End date: 21/07/2014

Education:

  • 2005: BSc: Universidad de La Laguna (ULL), Faculty of Physics
  • 2007: DEA (Diploma de Estudios Avanzados): Universidad de La Laguna (ULL), Faculty of Physics; Department Applied Physics, Diploma Thesis: Luminescent Nanostructured Materials; Synthesis and Characterization
  • 2013: PhD: Universidad de La Laguna (ULL), Faculty of Physics; Department of Applied Physics; PhD thesis: Lanthanides ions doped glass-ceramics based on insulating and/or semiconductors nanocrystals dispersed in SiO2. Synthesis, structural and spectroscopic characterization
  • 2022: Assoc. Prof. (Docent): Nanostructure Oxyfluoride Glass-ceramics: Relationship between synthesis, processing and structural and optical properties (Nanoštruktúra Oxyfluorid Sklokeramika: Vzťah medzi syntézou, spracovaním a štruktúrnymi a optickými vlastnosťami)

Awards, scholarships and research stays:

  • Cajacanarias Grants for Central Research Services –ULL: Thermal Analysis Service, Universidad de La Laguna, La Laguna, Spain, 2007
  • Cajacanarias Grants for Central Research Services –ULL: Magnetic Measurements Service, Universidad de La Laguna, La Laguna, Spain, 2008
  • Cajacanarias Grants for Central Research Services –ULL: Thermal Analysis Service, Universidad de La Laguna, La Laguna, Spain, 2009
  • FPI grant, Agencia Canaria de Investigación, Innovación y Sociedad de la Información (ACIISI) and European Social Fund, Universidad de La Laguna, La Laguna, Spain, 2009-2013
  • 2010 Short Estays Grant, Agencia Canaria de Investigación, Innovación y Sociedad de la Información (ACIISI) and European Social Fund, Institutute For Nanoscale Physics and Chemistry (INPAC), Katholieke Universiteit Leuven (KUL), Leuven, Belgium, 2010
  • 2012 Short Estays Grant, Agencia Canaria de Investigación, Innovación y Sociedad de la Información (ACIISI) and European Social Fund, CNRS- Institute for Photonics and Nanotechnologies (IFN), Trento, Italy, 2013
  • 2013 Postdoctoral Training contracts grants, GlaSS group, Glass Department, Ceramic and Glass Institute (ICV-CSIC), Madrid, Spain, 2015-2017
  • 2014, Doctorate Extraordinary Award, Universidad de La Laguna (ULL), La Laguna, Spain
  • 2017, Posdoctoral contract, GlaSS group, Glass Department, Ceramic and Glass Institute (ICV-CSIC), Madrid, Spain, 2017-2018
  • 2022, Laboratory of Glass Science, Otto Schott Institute of Materials Research, Friedrich Schiller University Jena.

Other activities:

  • Sociedad Española de Ceramica y Vidrio, member
  • European Ceramic Society, member
  • Slovak Glass society, Member
  • Member of Slovak Ceramic Society
  • Member of Organisation Committees of 3 young researcher workshops, ICV-CSIC, Madrid
  • Member of Organisation Committee of 12th International Symposium on Crystallization in Glasses and Liquids (ISCGL).
  • Member of the Organization Committe of FunGlass Symposium at XVIII, ECERS2023.
Assoc. Prof. José Joaquín Velázquez García, PhD.
Assoc. Prof. José Joaquín Velázquez García, PhD.
Head of Department of Functional materials
Researcher
E-mail: jose.velazquez@tnuni.sk
Tel.: +421 32 7400 518
Office: B 4.08