TITLE:
Hydro-Adsorption Study by Dynamic Laser Speckle of Natural Zeolite for Adsorbent and Fertilizer Applications
AUTHORS:
Ruth Dary Mojica-Sepulveda, Luís Joaquín Mendoza-Herrera, María Florencia Agosto, Eduardo Grumel, Delia Beatriz Soria, Carmen Inés Cabello, Marcelo Trivi
KEYWORDS:
Natural Zeolites, Adsorbents, Hydro-Adsorption, Laser, Speckle
JOURNAL NAME:
Advances in Chemical Engineering and Science,
Vol.6 No.5,
December
20,
2016
ABSTRACT: The
dynamic behavior caused by hydro-adsorption process of materials based on a
rich mineral clinoptilolite together with their acidic, basic and calcinated
forms has been studied by the dynamic laser speckle (DLS) technique. We propose
a modified Peleg’s equation to improve fitting of DLS data. Textural (BET),
structural (XRD) and spectroscopic (FTIR) properties were also studied and
compared. We demonstrated that DLS
was the most sensitive, simple and inexpensive method for comparing the
performance of adsorptive materials with slightly modified surfaces. It also
allowed the correlation with physicochemical properties.