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Related Experiment Video

Updated: Jul 28, 2025

Design and Validation of a Volumetric-extrusion Bioprinter for Bioprinting of Soluble Basement Membrane Extract for Translational Research
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Design and Validation of a Volumetric-extrusion Bioprinter for Bioprinting of Soluble Basement Membrane Extract for Translational Research

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Ti

Zi-Wei Xiong1, Yu-Jie Meng2, Chao-Bing Luo3

  • 1Xinjiang Key Laboratory of Agricultural Chemistry and Biomaterials, College of Chemistry and Chemical Engineering, Xinjiang Agricultural University, Urumchi, 830052 Xinjiang, People's Republic of China.

International Journal of Biological Macromolecules
|June 4, 2023
PubMed
Summary

Nitrogen-doped titanium dioxide@carbon (N-TiO2@C) nanocomposites were synthesized for enhanced methylene blue (MB) photodegradation. This novel method offers a stable and efficient photocatalyst with broad applications.

Keywords:
Carbon nanocompositesCoordination complexN-doped TiO(2)PhotodegradationPolysaccharide

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Environmental Chemistry

Background:

  • Titanium dioxide (TiO2) based nanocomposites are effective photocatalysts.
  • Improving the photodegradation efficiency of organic pollutants like methylene blue (MB) is crucial.
  • Nitrogen doping is a known strategy to enhance photocatalytic activity.

Purpose of the Study:

  • To develop a novel N-doped TiO2@carbon (N-TiO2@C) nanocomposite.
  • To improve the photodegradation performance of TiO2@carbon for MB removal.
  • To explore a versatile synthesis route for N-doped metal oxide@carbon composites.

Main Methods:

  • A one-pot synthesis using a Ti4+-dopamine/sodium alginate complex.
  • Characterization via FT-IR, XRD, XPS, UV-vis DRS, TG-DTA, and SEM-EDS.
  • Photocatalytic degradation experiments using MB as a model pollutant.

Main Results:

  • The synthesis yielded rutile phase TiO2 within a carbon matrix.
  • The N-TiO2@C composite demonstrated high removal efficiency for MB.
  • Excellent stability and reusability were confirmed through cycling experiments.

Conclusions:

  • A facile and effective method for preparing N-TiO2@C nanocomposites was established.
  • The N-TiO2@C composite exhibits superior photocatalytic activity and stability.
  • The synthesis strategy is extendable to other N-doped polyvalent metal oxides@carbon composites using various polysaccharides.