Utilization of Various Analogy of Synthetic Nanoporous Zeolites and Composite of Zeolites for Decontamination/Detoxification of CWA Simulants—An Updated Review

Abstract

In this review, we summaries the past few year work on the chemistry of CWA's and their simulants on various heterogeneous surfaces of zeolites, composites of zeolites and doped zeolite with transition metal oxides. This review elaborates an updated literature overview on the degradation of CWA's and its simulants. The data written in this review were collected from the peer-reviewed national and international literature.

Alumino-Silicate Structural Formation during Alkali-Activation of Metakaolin: In-Situ and Ex-Situ ATR-FTIR Studies

“…Figure 8b shows zeolite-A crystals in the sample, which was previously confirmed by XRD. The Si/Al ratios of the zeolite phase is in the 1.02-1.11 range (Locations 3 and 4), which is consistent with the zeolite-A formula (Na [28].…”

Zeolites for the nutrient recovery from wastewater

“…In fact, zeolites are used as catalysts in the oil refining and petrochemical industry because of their superiority performance, stability and selectivity in large conversion and upgrade processes compared to their amorphous equivalents. The action of catalysts takes place within the pores of zeolites selected on the basis of their unique characteristics of structure, morphology and composition [52,53]. The compatibility of the zeolite as a catalyst with the specific reaction can be considered the key to the economic success of this method [54].…”

Detection of gaseous nerve agent simulants with broadband photoacoustic spectroscopy

“…We analyse four NA simulants, namely trimethyl phosphate (TMP, Sigma-Aldrich, >99%), dimethyl methylphosphonate (DMMP, Fluka, 97%), diethyl methylphosphonate (DEMP, Sigma-Aldrich, 97.3%) and diisopropyl methylphosphonate (DIMP, Alfa Aesar, 95%), whose molecular structures and thus spectral properties are similar to G-series NAs such as sarin, tabun and soman (Ruiz-Pesante et al, 2007;Mott and Rez, 2012;Neupane et al, 2019;Kumar et al, 2019). Simulant samples in the gas phase are prepared by placing 20 μl of liquid simulant at the bottom of a one-liter container as illustrated at the bottom-right corner in Fig.…”