Modulation of cytotoxicity by consecutive adsorption of tannic acid and pesticides on surfactant functionalized zeolites

Abstract

This study investigated environmental application of FAU type zeolites modified with cationic surfactants (cetylpyridinium chloride, tetrapropylammonium chloride and benzalkonium chloride). Adsorbent characterizations were investigated using Fourier‒transform infrared and Raman spectroscopy,...

Modified zeolite-supported biofilm in service of pesticide biodegradation

“…Considering the possible dissipation of the pesticides due to adsorption, in our experiments no adsorption of MCPA or glyphosate was detected either on the zeolites and biomass or on the pots. Although the zeolites have high adsorption potential towards the positively charged species (Kassa 2019), to make zeolite adsorb negatively charged or neutral species (such as MCPA and glyphosate in water solution) may require modification, for example by surfactants or CeO2 deposition (Rathi et al 2019;Jevremoví et al 2020). Moreover, the medium in which where conducted the experiments contained large amounts of inorganic ions, therefore if there were some active sites on the surface of zeolite to adsorb negatively charged or neutral species, they would by fully blocked by inorganic ions, which concentration in the medium was significantly higher than the concentration of pesticides.…”

The impact of preparation route on the performance of silver dodecatungstophosphate/β zeolite catalysts in the ethylene production

“…If the aim is to combine two excellent catalytic materials, can enhanced catalytic performance be expected? Systematic upgrade of zeolites with organic and inorganic active phase molecules and structures has proved to be a valuable approach for manufacturing upgraded materials for various environmental applications (Milojević-Rakić et al 2013Jović et al 2017Jović et al , 2018Bajuk-Bogdanović et al 2017;Jevremović et al 2019Jevremović et al , 2020. MFI zeotype excels by far in this catalysts search, but the present study aims to show that BEA zeotype (β) with larger pores and higher acid stability may be a better choice for ethanol dehydration.…”

MFI, BEA and FAU zeolite scavenging role in neonicotinoids and radical species elimination

“…We have recently investigated the modulation of acetamiprid cytotoxicity in the presence of tannic acid, as a polyphenolic constituent of pesticide formulations, and functionalized zeolite adsorbents. 24 A definite correlation between pesticide retention and cytotoxicity was established, along with the capacity of the ZSM-5 zeolite for acetamiprid adsorption. Furthermore, a series of functionalized zeolite-based materials 25–27 were tested for acetamiprid adsorption, and, in each case, an interesting finding emerged.…”