Synthesis and characterization of Cr-ZSM-5 composite in fluoride medium and its performance in oxidation reaction of 2-mercaptobenzotiazole - Archive ouverte HAL
Article Dans Une Revue International Journal of Clothing Science and Technology Année : 2017

Synthesis and characterization of Cr-ZSM-5 composite in fluoride medium and its performance in oxidation reaction of 2-mercaptobenzotiazole

Résumé

Purpose The purpose of this paper is to synthesize Cr-ZSM-5 using hydrothermal synthesis in acidic fluoride medium and the investigation of its catalytic performance in heterogeneous oxidation of 2-mercaptobenzothiazole in the presence of H 2 O 2 . Design/methodology/approach The framework was characterized by chemical composition, FT-IR, UV-visible spectroscopy, N 2 adsorption (BET), and diffraction x-ray (DRX). FT-IR spectroscopy shows the characteristic band of Si-O-Cr linkage around 960-990 cm −1 and bands around 688-690 and 627 cm −1 , indicating the presence of extraframework chromium oxide. UV spectra show a shoulder around 244-257 and bands around 360-380 nm, assigning the tetrahedral coordinated environment in (O 2− =Cr 6+ ) − (Cr 5+ -O −1 ), charge transfer transition state (CT) of isolated Cr (VI) inside the structure of Cr-ZSM-5. Findings The catalytic degradation of 2-mercaptobenzothiazole by H 2 O 2 heterogenous oxidation using catalyst Cr-ZSM-5 showed the formation of bis (benzothiazoyl) disulfide with 95 percent yield. Originality/value The application of this process in the environment (catalysis, adsorption, and degradation of organic compounds).

Domaines

Chimie
Fichier non déposé

Dates et versions

hal-04015840 , version 1 (06-03-2023)

Identifiants

Citer

Benchikh Imen, Djafri Fatiha, Djafri Ayada, Tabti Affaf, Franck Launay. Synthesis and characterization of Cr-ZSM-5 composite in fluoride medium and its performance in oxidation reaction of 2-mercaptobenzotiazole. International Journal of Clothing Science and Technology, 2017, 29 (4), pp.483-490. ⟨10.1108/IJCST-08-2016-0095⟩. ⟨hal-04015840⟩
11 Consultations
0 Téléchargements

Altmetric

Partager

More