Comparison of Y and ZSM-5 zeolite modified with magnetite nanoparticles in removal of hydrogen sulfide from air

An optical-magnetic Material as a toxic gas filter and sensing device

“…A second thermal degradation event was observed at around 266-307 C, which can be attributed to PVA decomposition. 14,16 An increase in mass loss in this temperature range was observed as the PVA concentration in the dispersion of the magnetic nanoparticles was increased, proving the increase in the polymeric material in the dispersion. Such a system containing 5% PVA in the dispersion prevents the decanting of magnetic nanoparticles, whose supernatant contains the most signicant number of nanoparticles.…”

“…9,10 The composites or hybrids of PAni and graphene or iron oxides, for example, have been the basis for the development of polymers with better conductive and magnetic properties. 8,11 Magnetic particles, especially iron oxide (Fe 3 O 4 ) nanoparticles, have been widely reported in the literature 12 in applications in the area of cancer treatment with magnetic hyperthermia, water treatment, 13,14 catalysts, 15 and heavy metal adsorbers [16][17][18] besides their use in the adsorbers of toxic gases. 19 Their viability is due to their facile synthesis, good yields, and high sorption capacity as a result of the electrostatic interactions that contribute to excellent adhesion as well as the possibility of binding with macromolecules and functional groups on the surfaces of the magnetic particles.…”

Latest technological advances and insights into capture and removal of hydrogen sulfide: a critical review

“…Currently, zeolite-based adsorbents are gaining worldwide attention for industrial adoption and being rigorously studied for H 2 S capture purposes owing to their substantial surface areas and porosity. Jafari et al 205 studied the effect of magnetite nanoparticle addition on the performances of Y and ZSM-5 zeolite substrates for removal of up to 120 ppm of H 2 S at relatively high temperatures between 100 and 300 °C. Zeolite Y doped with 5% magnetite was found to have the highest adsorption capacity of 69.92 mg g −1 as the doping process has improved the specific surface area and increased the number of micropores and mesopores.…”

Highly efficient oxidative removal of thiophene at ambient temperature over synthetic MnO2/zeolite nanocomposites

“…1,2,40 It was reported that natural and synthetic zeolites are potential candidates for removing SO x , NO x , CO x , H 2 S, and storing H 2 gas. 41,42 The modification of zeolite substrates with catalytic nanoparticles can lead to great improvement in the adsorption performance of zeolites. 41,43 It was previously reported that the modification of ZSM-5 and Y zeolite substrates with magnetite nanoparticles can increase their hydrogen sulfide removal efficiency.…”

“…1,2,40 It was reported that natural and synthetic zeolites are potential candidates for removing SO x , NO x , CO x , H 2 S, and storing H 2 gas. 41,42…”