Skip to main content
main-content

Tipp

Weitere Artikel dieser Ausgabe durch Wischen aufrufen

11.02.2020 | SPECIAL FEATURE: ORIGINAL ARTICLE

Magnetic BEA-type zeolites: preparation by dry-gel conversion method and assessment of dye removal performance

Zeitschrift:
Journal of Material Cycles and Waste Management
Autoren:
Vanpaseuth Phouthavong, Masatake Hiraiwa, Takeshi Hagio, Supinya Nijpanich, Vanseng Chounlamany, Tatsuo Nishihama, Yuki Kamimoto, Ryoichi Ichino
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s10163-020-00994-8) contains supplementary material, which is available to authorized users.

Publisher's Note

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

Abstract

The large pores and the rather hydrophobic nature of silica-rich BEA-type zeolites make them promising dye adsorbents. Composites of such zeolites and magnetic particles (magnetic zeolites), commonly prepared using hydrothermal techniques, can be rapidly and reliably removed from treated wastewater through magnetic separation and are therefore more practical than conventional zeolites. However, the incorporation of magnetic particles is difficult to control since it depends greatly on whether the zeolite nucleation occurs in the vicinity of magnetic particles or not. To overcome this problem, we herein synthesize silica-rich magnetic BEA-type zeolites via a different route called dry-gel conversion, namely by exposing a precursor gel containing well-dispersed magnetite to water vapor at 180 °C for 12 h. The obtained samples were characterized by XRD and SEM–EDS and their dye adsorption performance were evaluated using methylene blue as a model. The results indicate that the precursor gel was successfully converted into BEA-type zeolites that contain homogeneously distributed magnetite, exhibit a high methylene blue adsorption capacity (133 mg/g), and can be easily separated by application of a magnetic field. Consequently, this study paves the way to the development of an efficient wastewater treatment technology and thus contributes to the establishment of a green society.

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.

Zusatzmaterial
Literatur
Über diesen Artikel