Skip to main content
main-content

Tipp

Weitere Artikel dieser Ausgabe durch Wischen aufrufen

09.05.2020

A novel green synthesis approach for improved photocatalytic activity and antibacterial properties of zinc sulfide nanoparticles using plant extract of Acalypha indica and Tridax procumbens

Zeitschrift:
Journal of Materials Science: Materials in Electronics
Autoren:
S. Kannan, N. P. Subiramaniyam, M. Sathishkumar
Wichtige Hinweise

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Abstract

In this present work, improved photocatalytic activity and antibacterial properties of zinc sulfide (ZnS) nanoparticles using plant extract of Acalypha indica (A:ZnS) and Tridax procumbens (T:ZnS) via novel green synthesis route had been reported. X-ray diffraction (XRD), transmission electron microscopy (TEM), and Energy dispersive X-ray spectroscopy (EDX) were used to investigate the crystal structure, surface morphology, and elemental composition analysis, respectively. The optical properties and functional group analysis of the samples were done using UV–visible, photoluminescence, and Fourier transform infrared spectroscopy (FTIR). The influence of Acalypha indica (A:ZnS) and Tridax procumbens (T:ZnS) plant extract concentration on the structural, surface morphology, optical, antibacterial, and photocatalytic activity has been systematically investigated. XRD results are suggested that ZnS hexagonal wurtzite crystal structure formed during biosynthesis process. TEM and SAED images show the hexagonal- and spherical-shaped structure in morphology with average diameter around 5–20 nm which is good agreement with the grain size calculated from XRD. Optical properties were found to have considerable red shift in the absorption edge and decreasing band gap was observed for A:ZnS/T:ZnS (2.96 eV) when compared to pure ZnS (3.36 eV). The antibacterial properties of ZnS/A:ZnS/T:ZnS nanoparticles were investigated using in vitro disk diffusion method against human pathogenic microorganisms. The inhibition zone of biosynthesized ZnS nanoparticles increased by increasing plant extracts concentration. This result conformed that A:ZnS/T:ZnS nanoparticles have more potential as antibiotic when compared with pure ZnS. Besides, Biosynthesized T:ZnS (40 ml) nanoparticles showed high surface area (131.84 m2/g) and larger pore size (12.15 nm) than pure ZnS sample; this high surface area may offer more active sites to enhance photocatalytic ability. The dye degradation properties of methylene blue dye (MBD) were investigated using the ZnS/A:ZnS/T:ZnS nanoparticles under visible light irradiation. The results show that T:ZnS (40 ml) has excellent photocatalytic performance towards MBD such as high degradation efficiency (98%) and more cyclic stability than other ZnS samples. The role of plant extract on dye degradation properties was discussed based on the possible inhibition of photogenerated electron–hole pair recombination during dye degradation under visible light irradiation.

Bitte loggen Sie sich ein, um Zugang zu diesem Inhalt zu erhalten

Sie möchten Zugang zu diesem Inhalt erhalten? Dann informieren Sie sich jetzt über unsere Produkte:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 69.000 Bücher
  • über 500 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Umwelt
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Testen Sie jetzt 30 Tage kostenlos.

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 50.000 Bücher
  • über 380 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Umwelt
  • Maschinenbau + Werkstoffe




Testen Sie jetzt 30 Tage kostenlos.

Springer Professional "Wirtschaft"

Online-Abonnement

Mit Springer Professional "Wirtschaft" erhalten Sie Zugriff auf:

  • über 58.000 Bücher
  • über 300 Zeitschriften

aus folgenden Fachgebieten:

  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Versicherung + Risiko




Testen Sie jetzt 30 Tage kostenlos.

Literatur
Über diesen Artikel