Molecules, Vol. 23, Pages 2647: Synthesis of Binderless ZK-4 Zeolite Microspheres at High Temperature

Molecules, Vol. 23, Pages 2647: Synthesis of Binderless ZK-4 Zeolite Microspheres at High Temperature
Molecules doi: 10.3390/molecules23102647
Authors:
Elyssa G. Fawaz
Darine A. Salam
Habiba Nouali
Irena Deroche
Severinne Rigolet
Benedicte Lebeau
T. Jean Daou

Binderless zeolite macrostructures in the form of ZK-4 microspheres were prepared using anion-exchange resin beads as shape-directing macrotemplates. The particles were synthesized under hydrothermal conditions at different temperatures and treatment times. The influence of the different synthesis parameters was investigated by X-ray diffraction, scanning electron microscopy, fluorescence X, nitrogen adsorption measurements and 29Si solid-state NMR. Fully crystalline spheres similar in size and shape to the original resin beads were obtained by a hydrothermal treatment at the highest temperatures (150–180 °C) for a short treatment time of 24 h. The synthesized microspheres showed to be promising in the molecular decontamination of volatile organic compounds (VOCs).

Source: Molecules - October 16, 2018 Category: Chemistry Authors: Elyssa G. Fawaz Darine A. Salam Habiba Nouali Irena Deroche Severinne Rigolet Benedicte Lebeau T. Jean Daou Tags: Article Source Type: research