Abstract
This study investigated the effect of NaOH concentration on the assemblage, crystallinity, and dimension of crystalline phases in hydroxyapatite–zeolite composites made with blast furnace slag. X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy measurement, scanning electron microscopy (SEM), and nitrogen adsorption–desorption tests were conducted to characterize the synthesized composites. In addition, the cesium adsorption potential of the synthesized composites was evaluated to assess the feasibility of using hydroxyapatite–zeolite composites synthesized from blast furnace slag. The composite samples using a 3 M NaOH solution showed the formations of Na-P1 and Faujasite (FAU) zeolites along with hydroxyapatite, which led to the highest adsorption capacity for cesium (44.90 mg/g).
| Original language | English |
|---|---|
| Article number | 21 |
| Pages (from-to) | 1-13 |
| Number of pages | 13 |
| Journal | Minerals |
| Volume | 11 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2021 |
Bibliographical note
Publisher Copyright:© 2020 by the authors. Licensee MDPI, Basel, Switzerland.
Keywords
- Blast furnace slag
- Hydrothermal synthesis
- Hydroxyapatite
- NaOH concentration
- Zeolite
ASJC Scopus subject areas
- Geotechnical Engineering and Engineering Geology
- Geology