Academic Journal
Zeolite Adsorption of Chloride from a Synthetic Alkali-Activated Cement Pore Solution
| العنوان: | Zeolite Adsorption of Chloride from a Synthetic Alkali-Activated Cement Pore Solution |
|---|---|
| المؤلفون: | Osio-norgaard, Jorge, Srubar, Wil V |
| المصدر: | University Libraries Open Access Fund Supported Publications |
| بيانات النشر: | CU Scholar |
| سنة النشر: | 2019 |
| المجموعة: | University of Colorado, Boulder: CU Scholar |
| مصطلحات موضوعية: | alkali-activated cements, zeolite, faujasite, chabazite, chloride adsorption, Ceramic Materials, Civil Engineering, Structural Materials |
| الوصف: | This work presents experimental evidence that confirms the potential for two specific zeolites, namely chabazite and faujasite (with a cage size ~2–13 Å), to adsorb small amounts of chloride from a synthetic alkali-activated cement (AAC) pore solution. Four synthetic zeolites were first exposed to a chlorinated AAC pore solution, two faujasite zeolites (i.e., FAU, X-13), chabazite (i.e., SSZ-13), and sodium-stabilized mordenite (i.e., Na-Mordenite). The mineralogy and chemical composition were subsequently investigated via X-ray diffraction (XRD) and both energy- and wavelength-dispersive X-ray spectroscopy (WDS), respectively. Upon exposure to a chlorinated AAC pore solution, FAU and SSZ-13 displayed changes to their diffraction patterns (i.e., peak shifting and broadening), characteristic of ion entrapment within zeolitic aluminosilicate frameworks. Elemental mapping with WDS confirmed the presence of small amounts of elemental chlorine. Results indicate that the chloride-bearing capacity of zeolites is likely dependent on both microstructural features (e.g., cage sizes) and chemical composition. |
| نوع الوثيقة: | text |
| اللغة: | unknown |
| Relation: | https://scholar.colorado.edu/libr_oafund/105; https://www.mdpi.com/1996-1944/12/12/2019 |
| الاتاحة: | https://scholar.colorado.edu/libr_oafund/105 https://www.mdpi.com/1996-1944/12/12/2019 |
| Rights: | http://creativecommons.org/licenses/by/4.0/ |
| رقم الانضمام: | edsbas.F70BA966 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |