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Application of Ba 3 (PO 4 ) 2 /Fe 3 O 4 as a novel magnetic adsorbent to remove methyl blue from aqueous solution

A novel magnetic composite adsorbent composed of Ba 3 (PO 4 ) 2 nanoflakes and Fe 3 O 4 microsphere (BPF) was prepared. The morphology, chemical structure, and magnetic property of BPF were characterized. Adsorption of methyl blue (MB) onto BPF was investigated with respect to pH, temperature, dosag... Full description

Journal Title: Journal of Materials Science 2016, Vol.51(7), pp.3525-3535
Main Author: Zhang, Fan
Other Authors: Yin, Xiaoju , Lan, Jing , Zhang, Weihua
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0022-2461 ; E-ISSN: 1573-4803 ; DOI: 10.1007/s10853-015-9672-y
Link: http://dx.doi.org/10.1007/s10853-015-9672-y
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recordid: springer_jour10.1007/s10853-015-9672-y
title: Application of Ba 3 (PO 4 ) 2 /Fe 3 O 4 as a novel magnetic adsorbent to remove methyl blue from aqueous solution
format: Article
creator:
  • Zhang, Fan
  • Yin, Xiaoju
  • Lan, Jing
  • Zhang, Weihua
subjects:
  • Mathematical Models
  • Materials Science
  • Magnetic Properties
  • Adsorption
  • Adsorbents
  • Nanostructure
  • Entropy
  • General and Nonclassified (MD)
  • General and Nonclassified (Ep)
  • General and Nonclassified (Ed)
  • General and Nonclassified (EC)
ispartof: Journal of Materials Science, 2016, Vol.51(7), pp.3525-3535
description: A novel magnetic composite adsorbent composed of Ba 3 (PO 4 ) 2 nanoflakes and Fe 3 O 4 microsphere (BPF) was prepared. The morphology, chemical structure, and magnetic property of BPF were characterized. Adsorption of methyl blue (MB) onto BPF was investigated with respect to pH, temperature, dosage, adsorption time, and initial MB concentration. Kinetics data and adsorption isotherm were better fitted by pseudo-second-order model and Langmuir equation, respectively. The high adsorption capacity of MB by BPF composite was 334.5 ± 12.5 mg g −1 . The values of activation parameters such as free energy (Δ G , −4.25 ± 0.16 mol −1 to −6.06 ± 0.12 kJ mol −1 ), enthalpy (Δ H , −24.93 ± 1.50 kJ mol −1 ), and entropy (Δ S , −60.29 ± 3.20 J mol −1 K −1 ) were determined, indicating that the adsorption was spontaneous, favorable, and exothermic in nature. The removal of MB was attributed to the hydrogen bond and ionic interactions. Moreover, BPF was easily recovered, and the adsorption capacity was approximately 92 % of the initial saturation adsorption capacity after being used five times.
language: eng
source:
identifier: ISSN: 0022-2461 ; E-ISSN: 1573-4803 ; DOI: 10.1007/s10853-015-9672-y
fulltext: fulltext
issn:
  • 1573-4803
  • 15734803
  • 0022-2461
  • 00222461
url: Link


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titleApplication of Ba 3 (PO 4 ) 2 /Fe 3 O 4 as a novel magnetic adsorbent to remove methyl blue from aqueous solution
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descriptionA novel magnetic composite adsorbent composed of Ba 3 (PO 4 ) 2 nanoflakes and Fe 3 O 4 microsphere (BPF) was prepared. The morphology, chemical structure, and magnetic property of BPF were characterized. Adsorption of methyl blue (MB) onto BPF was investigated with respect to pH, temperature, dosage, adsorption time, and initial MB concentration. Kinetics data and adsorption isotherm were better fitted by pseudo-second-order model and Langmuir equation, respectively. The high adsorption capacity of MB by BPF composite was 334.5 ± 12.5 mg g −1 . The values of activation parameters such as free energy (Δ G , −4.25 ± 0.16 mol −1 to −6.06 ± 0.12 kJ mol −1 ), enthalpy (Δ H , −24.93 ± 1.50 kJ mol −1 ), and entropy (Δ S , −60.29 ± 3.20 J mol −1 K −1 ) were determined, indicating that the adsorption was spontaneous, favorable, and exothermic in nature. The removal of MB was attributed to the hydrogen bond and ionic interactions. Moreover, BPF was easily recovered, and the adsorption capacity was approximately 92 % of the initial saturation adsorption capacity after being used five times.
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descriptionA novel magnetic composite adsorbent composed of Ba 3 (PO 4 ) 2 nanoflakes and Fe 3 O 4 microsphere (BPF) was prepared. The morphology, chemical structure, and magnetic property of BPF were characterized. Adsorption of methyl blue (MB) onto BPF was investigated with respect to pH, temperature, dosage, adsorption time, and initial MB concentration. Kinetics data and adsorption isotherm were better fitted by pseudo-second-order model and Langmuir equation, respectively. The high adsorption capacity of MB by BPF composite was 334.5 ± 12.5 mg g −1 . The values of activation parameters such as free energy (Δ G , −4.25 ± 0.16 mol −1 to −6.06 ± 0.12 kJ mol −1 ), enthalpy (Δ H , −24.93 ± 1.50 kJ mol −1 ), and entropy (Δ S , −60.29 ± 3.20 J mol −1 K −1 ) were determined, indicating that the adsorption was spontaneous, favorable, and exothermic in nature. The removal of MB was attributed to the hydrogen bond and ionic interactions. Moreover, BPF was easily recovered, and the adsorption capacity was approximately 92 % of the initial saturation adsorption capacity after being used five times.
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abstractA novel magnetic composite adsorbent composed of Ba 3 (PO 4 ) 2 nanoflakes and Fe 3 O 4 microsphere (BPF) was prepared. The morphology, chemical structure, and magnetic property of BPF were characterized. Adsorption of methyl blue (MB) onto BPF was investigated with respect to pH, temperature, dosage, adsorption time, and initial MB concentration. Kinetics data and adsorption isotherm were better fitted by pseudo-second-order model and Langmuir equation, respectively. The high adsorption capacity of MB by BPF composite was 334.5 ± 12.5 mg g −1 . The values of activation parameters such as free energy (Δ G , −4.25 ± 0.16 mol −1 to −6.06 ± 0.12 kJ mol −1 ), enthalpy (Δ H , −24.93 ± 1.50 kJ mol −1 ), and entropy (Δ S , −60.29 ± 3.20 J mol −1 K −1 ) were determined, indicating that the adsorption was spontaneous, favorable, and exothermic in nature. The removal of MB was attributed to the hydrogen bond and ionic interactions. Moreover, BPF was easily recovered, and the adsorption capacity was approximately 92 % of the initial saturation adsorption capacity after being used five times.
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doi10.1007/s10853-015-9672-y
pages3525-3535
date2016-04