Dual function magnetic hydroxyapatite nanopowder for removal of malachite green and Congo red from aqueous solution

Fan Zhang; Baoliang Ma; Xiping Jiang; Yuefei Ji

doi:10.1016/j.powtec.2016.08.044

Dual function magnetic hydroxyapatite nanopowder for removal of malachite green and Congo red from aqueous solution

Fan Zhang, Baoliang Ma, Xiping Jiang, Yuefei Ji

Electrical and Computer Engineering

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

93 Scopus citations

Abstract

In this study, the removal of both cationic dye (malachite green) and anionic dye (Congo red) by magnetic Sr_5xBa_3x(PO₄)₃(OH)/Fe₃O₄ nanopowder (namely SBPF) from aqueous solution was investigated. Variables influencing the adsorption capacity, such as solution pH, temperature, adsorbent dosage, adsorption time, and initial concentration, were systematically investigated. The adsorption process is pH and temperature dependent. The adsorption for MG and CR can be described by pseudo-first-order and pseudo-second-order kinetic model, respectively. The adsorption behaviors fit quite well with the Langmuir model for both dyes with the maximum adsorption capacity of 526 mg g^− 1 for MG and 417 mg g^− 1 for CR. Thermodynamic analysis revealed that the adsorption processes were spontaneous and exothermic. Physical forces, hydrogen bonding, and ionic interaction are responsible for binding of the dyes with SBPF. The used SBPF nanopowder could be regenerated effectively and recycled for five cycles without a significant loss of adsorption ability. Moreover, the adsorbent can be applied to remove MG and CR in different water matrices.

Original language	English (US)
Pages (from-to)	207-214
Number of pages	8
Journal	Powder Technology
Volume	302
DOIs	https://doi.org/10.1016/j.powtec.2016.08.044
State	Published - Nov 1 2016

Bibliographical note

Funding Information:
This work was financially supported by the National Natural Science Funds of China (Grant No. 51402153 ) and the Fundamental Research Funds for the Central Universities (Grant No. KJQN201553 ).

Keywords

Adsorption
Congo red
Magnetic nanopowder
Malachite green
Recycling

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title = "Dual function magnetic hydroxyapatite nanopowder for removal of malachite green and Congo red from aqueous solution",

abstract = "In this study, the removal of both cationic dye (malachite green) and anionic dye (Congo red) by magnetic Sr5xBa3x(PO4)3(OH)/Fe3O4 nanopowder (namely SBPF) from aqueous solution was investigated. Variables influencing the adsorption capacity, such as solution pH, temperature, adsorbent dosage, adsorption time, and initial concentration, were systematically investigated. The adsorption process is pH and temperature dependent. The adsorption for MG and CR can be described by pseudo-first-order and pseudo-second-order kinetic model, respectively. The adsorption behaviors fit quite well with the Langmuir model for both dyes with the maximum adsorption capacity of 526 mg g− 1 for MG and 417 mg g− 1 for CR. Thermodynamic analysis revealed that the adsorption processes were spontaneous and exothermic. Physical forces, hydrogen bonding, and ionic interaction are responsible for binding of the dyes with SBPF. The used SBPF nanopowder could be regenerated effectively and recycled for five cycles without a significant loss of adsorption ability. Moreover, the adsorbent can be applied to remove MG and CR in different water matrices.",

keywords = "Adsorption, Congo red, Magnetic nanopowder, Malachite green, Recycling",

author = "Fan Zhang and Baoliang Ma and Xiping Jiang and Yuefei Ji",

note = "Funding Information: This work was financially supported by the National Natural Science Funds of China (Grant No. 51402153 ) and the Fundamental Research Funds for the Central Universities (Grant No. KJQN201553 ).",

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AU - Zhang, Fan

AU - Ma, Baoliang

AU - Jiang, Xiping

AU - Ji, Yuefei

N1 - Funding Information: This work was financially supported by the National Natural Science Funds of China (Grant No. 51402153 ) and the Fundamental Research Funds for the Central Universities (Grant No. KJQN201553 ).

PY - 2016/11/1

Y1 - 2016/11/1

N2 - In this study, the removal of both cationic dye (malachite green) and anionic dye (Congo red) by magnetic Sr5xBa3x(PO4)3(OH)/Fe3O4 nanopowder (namely SBPF) from aqueous solution was investigated. Variables influencing the adsorption capacity, such as solution pH, temperature, adsorbent dosage, adsorption time, and initial concentration, were systematically investigated. The adsorption process is pH and temperature dependent. The adsorption for MG and CR can be described by pseudo-first-order and pseudo-second-order kinetic model, respectively. The adsorption behaviors fit quite well with the Langmuir model for both dyes with the maximum adsorption capacity of 526 mg g− 1 for MG and 417 mg g− 1 for CR. Thermodynamic analysis revealed that the adsorption processes were spontaneous and exothermic. Physical forces, hydrogen bonding, and ionic interaction are responsible for binding of the dyes with SBPF. The used SBPF nanopowder could be regenerated effectively and recycled for five cycles without a significant loss of adsorption ability. Moreover, the adsorbent can be applied to remove MG and CR in different water matrices.

AB - In this study, the removal of both cationic dye (malachite green) and anionic dye (Congo red) by magnetic Sr5xBa3x(PO4)3(OH)/Fe3O4 nanopowder (namely SBPF) from aqueous solution was investigated. Variables influencing the adsorption capacity, such as solution pH, temperature, adsorbent dosage, adsorption time, and initial concentration, were systematically investigated. The adsorption process is pH and temperature dependent. The adsorption for MG and CR can be described by pseudo-first-order and pseudo-second-order kinetic model, respectively. The adsorption behaviors fit quite well with the Langmuir model for both dyes with the maximum adsorption capacity of 526 mg g− 1 for MG and 417 mg g− 1 for CR. Thermodynamic analysis revealed that the adsorption processes were spontaneous and exothermic. Physical forces, hydrogen bonding, and ionic interaction are responsible for binding of the dyes with SBPF. The used SBPF nanopowder could be regenerated effectively and recycled for five cycles without a significant loss of adsorption ability. Moreover, the adsorbent can be applied to remove MG and CR in different water matrices.

KW - Adsorption

KW - Congo red

KW - Magnetic nanopowder

KW - Malachite green

KW - Recycling

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Dual function magnetic hydroxyapatite nanopowder for removal of malachite green and Congo red from aqueous solution

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