Materials Map

Discover the materials research landscape. Find experts, partners, networks.

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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Materials Map under construction

The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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in Cooperation with on an Cooperation-Score of 37%

Topics

Publications (4/4 displayed)

  • 2023Solvothermal Synthesis of g-C3N4/TiO2 Hybrid Photocatalyst with a Broaden Activation Spectrum5citations
  • 2023Cu-coated graphitic carbon nitride (Cu/CN) with ideal photocatalytic and antibacterial properties3citations
  • 2021Aerogels for water treatment125citations
  • 2020Ethanol-activated granular aerogel as efficient adsorbent for persistent organic pollutants from real leachate and hospital wastewater39citations

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Imbar, Amit
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Kundu, Anu
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Pousty, Dana
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Kushwaha, Omkar S.
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Ganesamoorthy, Ramasamy
1 / 1 shared
Kumar, Rajnish
1 / 5 shared
Prasanna, V. Lakshmi
1 / 1 shared
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2023
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2020

Co-Authors (by relevance)

  • Imbar, Amit
  • Kundu, Anu
  • Pousty, Dana
  • Kushwaha, Omkar S.
  • Ganesamoorthy, Ramasamy
  • Kumar, Rajnish
  • Prasanna, V. Lakshmi
OrganizationsLocationPeople

article

Cu-coated graphitic carbon nitride (Cu/CN) with ideal photocatalytic and antibacterial properties

  • Kundu, Anu
  • Pousty, Dana
  • Vadivel, Vinod Kumar
Abstract

<p>An improved photocatalytic activity of Graphitic carbon nitride (CN) photocatalyst was achieved by incorporating Cu<sup>2+</sup> into CN in the presence of hyperbranched polyethylene amine (HPEI) as a capping agent. The addition of Cu to CN (CN[sbnd]HPEI+Cu) increased the photocatalytic degradation efficiency of wastewater dye pollutant methylene blue (MB) from 42 % to 95 %. E. coli and MS2 performed best in terms of inactivation to CN[sbnd]HPEI+Cu, achieving 5.5 ± 0.3 and 5.3 ± 0.1 log inactivation after 60 min of exposure, respectively. Excellent catalyst reusability and photocatalytic activity for MB in various types were obtained. To investigate the photocatalyst structure, morphology, optical, and photoelectric properties, we used X-ray diffraction (XRD), UV–Vis diffuse reflectance spectroscopy (DRS), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HR-TEM), X-ray photoelectron spectroscopy (XPS), and photocatalytic activity. It was found through XRD and XPS that the prepared photocatalysts were made up of Cu-doped CN and that the valence state of Cu was Cu<sup>0</sup>. Under the visible part of the solar spectrum (&gt;400 nm), the N<sub>2</sub> adsorption-desorption isotherms of pure CN, CN[sbnd]HPEI, and CN[sbnd]HPEI+Cu showed that copper did not alter the microstructure of pure CN. The photocatalytic activity of CN[sbnd]HPEI+Cu was improved by incorporating Cu<sup>0</sup> into CN, as this reduces the rate of electron-hole recombination in pure CN and accelerates the separation of electron-hole pairs. Electron spin resonance (ESR) spin trap experiments on the production of reactive oxygen species (ROS) from CN[sbnd]HPEI+Cu under visible light indicate that the presence of superoxide radicals (O<sub>2</sub><sup>•−</sup>), hydroxyl radicals (<sup>•</sup>OH) and holes could enhance the photocatalytic activity of the material.</p>

Topics
  • microstructure
  • morphology
  • Carbon
  • scanning electron microscopy
  • x-ray diffraction
  • experiment
  • x-ray photoelectron spectroscopy
  • Oxygen
  • reactive
  • nitride
  • transmission electron microscopy
  • copper
  • electron spin resonance spectroscopy
  • amine
  • tandem mass spectrometry