Preparation, characterization, and optical properties of the host-guest nanocomposite material zeolite-silver iodide

Surface Interactions and Mechanisms Study on the Removal of Iodide from Water by Use of Natural Zeolite-Based Silver Nanocomposites

“…After the adsorption of iodide one oxidation state of iodide is detected at 619.9-620.6 eV, which is either I − or I 2 . The expected 3d 5/2 peak of I − in AgI is in the range of 619–619.5 eV and of I 2 in the range of 619.9–620.8 eV [ 55 , 56 ]. However, 3d 5/2 peaks of iodide at 619.3–619.9 and even as high as 623.5 eV have also been reported [ 56 , 57 , 58 ].…”

“…The expected 3d5/2 peak of I − in AgI is in the range of 619-619.5 eV and of I2 in the range of 619.9-620.8 eV [55,56]. However, 3d5/2 peaks of iodide at 619.3-619.9 and even as high as 623.5 eV have also been reported [56][57][58]. The A detailed discussion is dedicated to XPS analysis as is important for deriving the oxidation state of the silver and iodide on the zeolite surface.…”

“…Borko et al studied clinoptilolite loaded with Pd and found that the presence of PdO2 is indicated by the Pd 3d5/2 peak at 339 eV binding energy compared to 337.9 eV reported for PdO2 [55,69]. Zhai et al found that the binding energy of the guest in the zeolite host-AgI composite materials, such as silver and iodine elements, shifted to higher energies [56]. For instance, the binding energy of I3d 5/2 level moved from 619.5 eV for bulk silver iodide to 619.9 eV for the NaZSM-5-AgI composite.…”

Photocatalytic degradation of gaseous toluene over ZnAl2O4 prepared by different methods: A comparative study

“…The SPV method is a well-established technique for the characterizing semiconductors, which relies on analyzing illuminationinduced changes in the surface voltage [44,45]. Unlike the UV-vis spectra, which covers all types of photon absorption, the SPV spectra are only sensitive to the electron transition related process and subsequent charge separation.…”

Synthesis of Linde type A zeolite–goethite nanocomposite as an adsorbent for cationic and anionic pollutants

“…A nanocomposite of zeolite and goethite, on the other hand, could be used in remediation of environments without the separation problem. In addition, nano-level composition of zeolites with other materials has resulted in tremendous increase in useful characteristics [6][7][8][9][10]. For example, Fukugaichi et al [6] found that the amount and rate of decomposition of acetaldehyde under UV irradiation was much higher on a nanocomposite of faujasite type zeolite and anatase type TiO 2 , than on a mixture of the two components.…”