Technology for Modifying Sorbents Based on Zeolite with Carbon Nanotubes

The technology of modification with carbon nanotubes of one of the most widespread industrial sorbents - zeolite of the CaA and NaX brands is proposed. The modification technology consisted in the preparation of a multicomponent mixture of nano- and microdispersed bulk materials containing zeolite, carbon nanotubes (CNTs) and, as a binder, bentonite clay. Then the resulting mixture was molded, dried and heat treated. The optimal content of the binder (20 and 30 %) and carbon nanotubes (2.5 and 2 %) for the modified versions of the CaA + CNT and NaX + CNT zeolites, respectively, has been experimentally established. The sorption capacity of modified zeolites for toluene vapor has been determined.

Investigation of high-performance adsorption for benzene and toluene vapors by calix[4]arene based organosilica (CBOS)

Calix[4]arene based organosilica (CBOS) was successfully prepared, characterized, and used for the adsorption of benzene and toluene vapors for the first time. The benzene and toluene vapor uptake of CBOS was determined to be 606 and 672 mg g−1, respectively.

Chameleon skin-inspired polymeric particles for the detection of toluene vapor

Chameleon skin-inspired polymeric particles that are synthesized from cholesteric liquid crystal-templates offer accurate detection of toluene vapor.

Monitoring the two-dimensional concentration profile of toluene vapors by using polymer-stabilized nematic liquid crystals in microchannels

The concentration of toluene vapor is obtained based on polymer-stabilized liquid crystals by viewing a colourful gamut under a polarized optical microscope.