Dr. Libu K Alexander Associate Professor Email: Personal Web Page

 

Academic Qualifications:

• Ph. D. Physics, Indian Institute of Technology Bombay.
• M. Sc. Physics, Cochin University of Science and Technology.
• B.Sc. Physics,  Bishop Moore College, University of Kerala.

Research Topics:

Functional Materials, Environmental Remediation, Graphene, Magnetism, Chemical/Bio Sensors, SERS substrates

Academic and Administrative Responsibilities (at present):

• Director, Centre for Photonics, School of Physical Sciences
  
• University Co-ordinator, MHRD-GIAN Program and MHRD-SPARC program
• Academic Director, Calicut University Institute of Engineering and Technology
• Member, PG Physics, University Board of Studies.
• Member, Optometry (single board), University Board of Studies.
• Member, Photonics (single board), University Board of Studies.
• Ambassador, Association of Commonwealth Universities, UK
  

Academic positions held:

• Associate Professor, Dept of Physics, University of Calicut (Since May 2023)
• Assistant Professor, Dept of Physics, University of Calicut (March 2012 - May 2023)
• Assistant Professor, Dept of Physics, UC College, Aluva (March 2011 to March 2012)
• Post Doctoral Fellow, Centre for Quantum Computer Technology, ARC centre of excellence, University of New South Wales, Australia (August 2008 to January 2011)
• Post Doctoral Fellow, Laborataire de Physique des Solides (LPS), Université Paris-Sud, Orsay, Paris, France (July 2007 to August 2008)

Publications (selected):

1. Dual-functional MnS nanomaterials: Efficient adsorbent for phosphate removal and sonocatalyst for textile dye degradation, Sravandas P, Libu K. Alexander, Journal of Physics and Chemistry of Solids, 196,112409 (2025).
2. 3D-Micro-Flower like BiOBrCl Nanoplate Solid Solution: A facile and rapid room-temperature synthesis with excellent photocatalytic decomposition of antibiotics in water.P. Sravandas, Libu K. Alexander, Colloids and Surfaces A,  Physicochemical and Engineering Aspects, 135748, (2024).
3. A novel polymer nanocomposite system for rapid dimethyl phthalate toxicity removal. Anju, K., Libu K. Alexander, Polymer Bulletin (2024).
4. Isotype BiVO₄ heterostructure and the effect of photo-sono induced electron-hole pair, P. Sravandas, Libu K. Alexander, Journal of Environmental Chemical Engineering,12 (5),113240,(2024)
5. The concentration-dependent effect of NaOH on graphene oxide: Revisited as a reducing agent, Aruna Unnikrishnan, Libu K. Alexander, Journal of Physics and Chemistry of Solids,190,111978,(2024)
6.  Ascorbic acid sensing utilizing graphene oxide based on UV–Visible bathochromic shift, Unnikrishnan, A., Megha, V. & Alexander, L.K, J Mater Sci: Mater Electron 35, 904 (2024)
7. Extremely low-frequency plasmonic state achieved in AC-ZnO polymer composite for tuned negative permittivity applications, Anju K, Libu K. Alexander, Materials Research Bulletin,172,112649 (2024)
8. Organic dye sequestration using Graphene Oxide–Activated Carbon (GOAC) composite unaided by linker molecule, Unnikrishnan, A., Alexander, L.K., J Mater Sci: Mater Electron 35, 417 (2024)
9. Fast catalytic degradation of an industrial surfactant driven by Hemi-micellization on facile synthesized CuS nanoflower, P. Sravandas, L. K. Alexander, Emergent mater. 7, 209–220 (2024)
10. Role of functional groups and morphology on the pH-dependent adsorption of a cationic dye using banana peel, orange peel, and neem leaf bio-adsorbents, B Thomas, Shilpa, E.P. & L K Alexander, Emergent mater. 4, 1479–1487 (2021)
11. Removal of Pb2+ and Cd2+ toxic heavy metal ions driven by Fermi level modification in NiFe2O4–Pd nano hybrids, B Thomas, LK Alexander, J. Sol. State Chem. 288, 121417 (2020).
12. Nanoreactor based enhancement of photocatalysis with Co0.7Zn0.3Fe2O4@ SrTiO3 core-shell nanocomposites, B.Thomas, L. K. Alexander, J. Alloys and Comp. 788, 257-266(2019).
13. Strain induced optical properties of perovskite LaFeO3. Vidyarajan N, L. K. Alexander, Mat. Res. Express 6, 015610 (2018).
14. Enhanced synergetic effect of Cr(VI) ion removal and anionic dye degradation with superparamagnetic cobalt ferrite meso– macroporous nanospheres, B.Thomas, L. K. Alexander, Appl. Nanosci. 8, 125-135 (2018).
15. Graphene/BiVO4/TiO2 nanocomposite: tuning band gap energies for superior photocatalytic activity under visible light, A.R, Nanakkal, L. K. Alexander, J. Mat. Sci. 52, 7997(2017).
16. Photocatalytic activity of graphene/ZnO nanocomposite fabricated by two-step electrochemical route. A.R, Nanakkal, L. K. Alexander, J. Chem. Sci. 129, 95 (2017).
17. Impurity effects in coupled-ladder BiCu₂PO₆ studied by NMR and quantum Monte Carlo simulations, L. K. Alexander, J. Bobroff, A. V. Mahajan, B. Koteswararao, N. Laflorencie, F.Alet, Phys. Rev. B 81, 054438/1-9 (2010).
18. Doping effects in the coupled, two-leg spin ladder BiCu₂PO₆, B. Koteswararao, A. V. Mahajan, L. K. Alexander, J. Bobroff, J. Phys-Cond. Matt. 22, 035601/1-9 (2010).
19. Low Temperature nuclear orientation studies of the magnetic structures of RNiAl₄ in applied magnetic fields, W.D. Hutchison, L. K. Alexander, K. Nishimura, Hyperfine Interactions(springer) 197:111–115 (2010).
20. Impurity-Induced Magnetic Order in Low-Dimensional Spin-Gapped Materials, J. Bobroff, N. Laflorencie, L. K. Alexander, A. V. Mahajan, B. Koteswararao, P. Mendels, Phys. Rev. Letters 103, 047201/1-4 (2009).
21. Vortex dynamics and frustration in two-dimensional triangular chromium lattices, M. Hemmida, H.-A. Krug von Nidda, N. Büttgen, A. Loidl, L. K. Alexander, R. Nath, V. Mahajan, R. F. Berger, R. J. Cava, Yogesh Singh, and D. C. Johnston, Phys. Rev. B 80, 054406/1-5 (2009).
22. Spin dynamics in Heisenberg triangular antiferromagnets: A μSR study of LiCrO₂, Olariu, P. Mendels, F. Bert, L. K. Alexander, A. V. Mahajan, A. D. Hillier, A.Amato, Phys. Rev. B 79, 224401/1-5 (2009).
23. ⁷Li NMR studies on the triangular lattice system LiCrO₂, L. K. Alexander, N. Buttgen, R. Nath, A. V. Mahajan, A. Loidl, Phys. Rev. B 76, 064429/1-8 (2007).

Research Group:

PhD Students:

1. Anju K (Polymer Nanocomposite based Phthalate Sensors)
2. Sravandas P (Environmental Remediation)
3. Aruna Unnikrishnan (Tuning properties of Graphene)
4. Reshmi KP. (Electrochemical sensing)

PhD awarded:

1. Ahamad Raseen Nanakkal (Graphene- Metal Oxide Nanocomposites for Photocatalysis
2. Vidyarajan N (Graphene – Perovskite Interface)
3. Bintu Thomas (Surface Modified Magnetic Nanoparticles)

MPhil awarded:

1. Geeshpath GK
2. Anju Parveen KA
3. Reshma Rajan
4. Anusha K
5. Swathi AC
6. Aruna Unnikrishnan
7. Pranav Premdas
8. Vishnupriya KS

MSc Projects: 30 completed

Research Projects:

• Principal Investigator, “Development of Graphene composites and magnetically recoverable composites for water purification by photocatalysis” KSCSTE, Rs 33,00,000
• Principal Investigator, Characterization studies and tuning magnetic properties of Graphene nanocomposites, UGC, Rs 6,00,000