Stability of dye loaded faujasites against organic solvents: effect of SiCl4 treatment

Literature Information

Publication Date 2000-08-04
DOI 10.1039/B003425H
Impact Factor 3.676
Authors

Wolfgang F. Hölderich, Nadja Röhrlich, Peter Bartl, Laurent Chassot


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Abstract

Several dyes (quinizarin, indigo, 1,4-diketo-2,5-dimethyl-3,6-diphenylpyrrolo[3,4-c]pyrrole) were loaded within faujasites and mordenite. In the presence of organic solvents, leaching was observed. However, after treatment with SiCl4 vapour the pores of the zeolites were sealed and no leaching could be observed. Furthermore, samples of NaY zeolite loaded with 1,4-diketo-2,5-dimethyl-3,6-diphenylpyrrolo[3,4-c]pyrrole were characterised with diffuse reflectance UV/VIS spectroscopy, diffuse reflectance infrared spectroscopy, thermogravimetry/differential scanning calorimetry, XRD and nitrogen adsorption, both before and after the SiCl4 treatment. In comparison with the untreated dye loaded zeolite, the thermal stability of the dye inside the sealed zeolite increased. The treatment does not have any influence on the framework composition or the dye.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
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Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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