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  3. Comparative study of nitrogen doped multi walled carbon nanotubes grafted with carboxy methyl cellulose hybrid composite by inverse gas chromatography and its UV photo detectors application

Comparative study of nitrogen doped multi walled carbon nanotubes grafted with carboxy methyl cellulose hybrid composite by inverse gas chromatography and its UV photo detectors application

  • J Chromatogr A. 2022 May 10:1670:462997. doi: 10.1016/j.chroma.2022.462997.
Basivi Praveen Kumar 1,  Pasupuleti Visweswara Rao 2,  Tayssir Hamieh 3,  Chang Woo Kim 4
Affiliations

Affiliations

  • 1 Pukyong National University Industry-University Cooperation Foundation, Pukyong National University, Busan 48513, Republic of Korea.
  • 2 Center for International Collaboration and Research, Reva University, Rukmini Knowledge Park, Kattigenahalli Yelahanka, Bangalore, Karnataka 560064, India; Department of Biochemistry, Faculty of Medicine and Health Sciences, Abdurrab University, Pekanbaru, Riau 28291, Indonesia.
  • 3 Faculty of Science and Engineering, Maastricht University, P.O. Box 616, Maastricht, MD 6200, the Netherland; Laboratory of Materials, Catalysis, Environment and Analytical Methods Laboratory (MCEMA), Faculty of Sciences, Lebanese University, Hadath, Lebanon. Electronic address: t.hamieh@umaastrichtuniversity.nl.
  • 4 Department of Nanotechnology Engineering, College of Engineering, Pukyong National University, Busan 48513, Republic of Korea. Electronic address: kimcw@pknu.ac.kr.
PMID: 35367894 DOI: 10.1016/j.chroma.2022.462997
Abstract

In this present work, the synthesis of nitrogen doped multi walled carbon nanotubes (N-MWCNTs) grafted Sodium-carboxy methyl cellulose (Na-CMC) hybrid composite was carried out via thermal reduction process. The hybrid composites were thermodynamically characterized by inverse gas chromatography (IGC) and compared to Na-CMC particles. The results were obtained by using 14 different IGC methods and models. We proved that the free energy of adsorption of the different Solvents on N-MWCNTs-Na-CMC surface was equal to the summation of both free enthalpies of the Solvents separately adsorbed on N-MWCNT and on Na-CMC surfaces. The London dispersive surface free energy of different Materials was calculated by using the various molecular models. The more precise results were obtained by Hamieh model based on the effect of the temperature on the surface area of organic molecules. It was proved that the dispersive component of the surface energy of N-MWCNTs-Na-CMC was equal to the geometric mean than that of N-MWCNTs and Na-CMC surfaces. Lewis Acid base properties of the various Materials were determined by using the different models and methods. A stronger basic character was highlighted for the different solid surfaces with more accentuated acid base character for N-MWCNT solid. Furthermore, the potential usage of the hybrid nanocomposite was studied for the practical application of the self-powered UV photodetection. On the Other hand, the N-MWCNTs-Na-CMC hybrid heterostructure N-MWCNTs-Na-CMC exhibited excellent photoresponse characteristics with a good stability and reproducibility under the UV illumination (λ=382 nm) at zero bias. The high photoresponse performances were mainly attributed to the improved conductivity and enhanced charge transfer resulting from the synergetic effect of N-MWCNTs-Na-CMC hybrid heterostructure. The detailed photoresponse properties of the N-MWCNTs-Na-CMC hybrid heterostructure was discussed in detail using energy band theory.

Keywords

Hybrid composite; IGC; London dispersive surface energy; Nitrogen doped MWCNTs; Self-powered UV- photo detectors; Specific free energy.

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