Study of Methylene Blue Degradation by Gold Nanoparticles Synthesized within Natural Zeolites

Ericka Rodriguez Leon, Eduardo Larios Rodriguez, Cesar Rodriguez Beas, German Plascencia-Villa, Ramon Alfonso Iniguez Palomares

Research output: Contribution to journalArticlepeer-review

37 Scopus citations


We carried out the in situ synthesis of gold nanoparticles inside a natural clinoptilolite-type zeolite matrix, using ascorbic acid as reducing agent. The microstructure of both zeolite and zeolite-gold nanocomposite was characterized by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), Scanning Transmission Electron Microscopy (STEM), and Energy-Dispersive X-ray Spectroscopy (EDS) techniques. Size distribution as assessed by STEM indicated that 60% of gold nanoparticles measured less than 2.5 nm. Determination of the surface area by the BET method revealed a specific value of 27.35 m2/g. The catalytic activity of zeolite-gold regarding methylene blue degradation under different light-exposing conditions was evaluated by UV-Vis spectroscopy. The results indicated that 50% degradation was achieved in only 11 min in presence of sunlight. This reaction was faster in comparison with those obtained using a white LED light. A notable aspect of this study is that catalysis was carried out without the addition of any strong reducing agents, such as sodium borohydride (NaBH4).

Original languageEnglish
Article number9541683
JournalJournal of Nanomaterials
StatePublished - 2016

Bibliographical note

Publisher Copyright:
© 2016 Ericka Rodríguez León et al.


Dive into the research topics of 'Study of Methylene Blue Degradation by Gold Nanoparticles Synthesized within Natural Zeolites'. Together they form a unique fingerprint.

Cite this