The effects of NaOH concentration on the hydrothermal synthesis of a hydroxyapatite–zeolite composite using blast furnace slag

G. U. Ryu; Hammad R. Khalid; Namkon Lee; Zhen Wang; H. K. Lee

doi:10.3390/min11010021

The effects of NaOH concentration on the hydrothermal synthesis of a hydroxyapatite–zeolite composite using blast furnace slag

G. U. Ryu, Hammad R. Khalid, Namkon Lee, Zhen Wang, H. K. Lee^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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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	https://doi.org/10.3390/min11010021
Publication status	Published - 27 Dec 2020
Externally published	Yes

Keywords

Blast furnace slag
Hydrothermal synthesis
Hydroxyapatite
NaOH concentration
Zeolite

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10.3390/min11010021Licence: CC BY

minerals-11-00021-v2Final published version, 4.41 MBLicence: CC BY

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title = "The effects of NaOH concentration on the hydrothermal synthesis of a hydroxyapatite–zeolite composite using blast furnace slag",

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).",

keywords = "Blast furnace slag, Hydrothermal synthesis, Hydroxyapatite, NaOH concentration, Zeolite",

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T1 - The effects of NaOH concentration on the hydrothermal synthesis of a hydroxyapatite–zeolite composite using blast furnace slag

AU - Ryu, G. U.

AU - Khalid, Hammad R.

AU - Lee, Namkon

AU - Wang, Zhen

AU - Lee, H. K.

PY - 2020/12/27

Y1 - 2020/12/27

N2 - 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).

AB - 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).

KW - Blast furnace slag

KW - Hydrothermal synthesis

KW - Hydroxyapatite

KW - NaOH concentration

KW - Zeolite

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DO - 10.3390/min11010021

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ER -

The effects of NaOH concentration on the hydrothermal synthesis of a hydroxyapatite–zeolite composite using blast furnace slag

Abstract

Keywords

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