Enhancing the removal of Sb (III) from water: a Fe3O4@HCO composite adsorbent caged in sodium alginate microbeads

Jun Zhang, Renjian Deng*, Bozhi Ren, Mohammed Yaseen, Andrew Hursthouse*

*Corresponding author for this work

Research output: Contribution to journalArticle

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Abstract

To remove antimony (Sb) ions from water, a novel composite adsorbent was fabricated from ferriferous oxide and waste sludge from a chemical polishing process (Fe3O4@HCO) and encapsulated in sodium alginate (SAB). The SAB adsorbent performed well with 80%–96% removal of Sb (III) ions within a concentration range of 5–60 mg/L. The adsorption mechanism of Sb (III) was revealed to be the synergy of chemisorption (ion exchange) and physisorption (diffusion reaction). The adsorption isotherms and kinetics conformed to the Langmuir isotherm and the pesudo-second-order kinetic model. Both initial pH and temperature influenced the adsorption performance with no collapse of microbeads within solution pH range 3–7. Most importantly for practical applications, these microspheres can be separated and recovered from aqueous solution by a magnetic separation technology to facilitate large-scale treatment of antimony-containing wastewater.
Original languageEnglish
Article number44
Number of pages12
JournalProcesses
Volume8
Issue number1
DOIs
Publication statusPublished - 1 Jan 2020

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Antimony
Sodium alginate
alginate
Adsorbents
Chemical polishing
antimony
sodium
Ions
adsorption
Adsorption
Magnetic separation
Kinetics
Physisorption
Water
Composite materials
isotherm
Chemisorption
Microspheres
Adsorption isotherms
Oxides

Keywords

  • Ferriferous oxide polishing sludge
  • Sodium alginate
  • Microbeads
  • Adsorption
  • Antimony-containing wastewater

Cite this

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title = "Enhancing the removal of Sb (III) from water: a Fe3O4@HCO composite adsorbent caged in sodium alginate microbeads",
abstract = "To remove antimony (Sb) ions from water, a novel composite adsorbent was fabricated from ferriferous oxide and waste sludge from a chemical polishing process (Fe3O4@HCO) and encapsulated in sodium alginate (SAB). The SAB adsorbent performed well with 80{\%}–96{\%} removal of Sb (III) ions within a concentration range of 5–60 mg/L. The adsorption mechanism of Sb (III) was revealed to be the synergy of chemisorption (ion exchange) and physisorption (diffusion reaction). The adsorption isotherms and kinetics conformed to the Langmuir isotherm and the pesudo-second-order kinetic model. Both initial pH and temperature influenced the adsorption performance with no collapse of microbeads within solution pH range 3–7. Most importantly for practical applications, these microspheres can be separated and recovered from aqueous solution by a magnetic separation technology to facilitate large-scale treatment of antimony-containing wastewater.",
keywords = "Ferriferous oxide polishing sludge, Sodium alginate, Microbeads, Adsorption, Antimony-containing wastewater",
author = "Jun Zhang and Renjian Deng and Bozhi Ren and Mohammed Yaseen and Andrew Hursthouse",
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doi = "10.3390/pr8010044",
language = "English",
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journal = "Processes",
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Enhancing the removal of Sb (III) from water : a Fe3O4@HCO composite adsorbent caged in sodium alginate microbeads. / Zhang, Jun; Deng, Renjian; Ren, Bozhi; Yaseen, Mohammed; Hursthouse, Andrew.

In: Processes, Vol. 8, No. 1, 44, 01.01.2020.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Enhancing the removal of Sb (III) from water

T2 - a Fe3O4@HCO composite adsorbent caged in sodium alginate microbeads

AU - Zhang, Jun

AU - Deng, Renjian

AU - Ren, Bozhi

AU - Yaseen, Mohammed

AU - Hursthouse, Andrew

PY - 2020/1/1

Y1 - 2020/1/1

N2 - To remove antimony (Sb) ions from water, a novel composite adsorbent was fabricated from ferriferous oxide and waste sludge from a chemical polishing process (Fe3O4@HCO) and encapsulated in sodium alginate (SAB). The SAB adsorbent performed well with 80%–96% removal of Sb (III) ions within a concentration range of 5–60 mg/L. The adsorption mechanism of Sb (III) was revealed to be the synergy of chemisorption (ion exchange) and physisorption (diffusion reaction). The adsorption isotherms and kinetics conformed to the Langmuir isotherm and the pesudo-second-order kinetic model. Both initial pH and temperature influenced the adsorption performance with no collapse of microbeads within solution pH range 3–7. Most importantly for practical applications, these microspheres can be separated and recovered from aqueous solution by a magnetic separation technology to facilitate large-scale treatment of antimony-containing wastewater.

AB - To remove antimony (Sb) ions from water, a novel composite adsorbent was fabricated from ferriferous oxide and waste sludge from a chemical polishing process (Fe3O4@HCO) and encapsulated in sodium alginate (SAB). The SAB adsorbent performed well with 80%–96% removal of Sb (III) ions within a concentration range of 5–60 mg/L. The adsorption mechanism of Sb (III) was revealed to be the synergy of chemisorption (ion exchange) and physisorption (diffusion reaction). The adsorption isotherms and kinetics conformed to the Langmuir isotherm and the pesudo-second-order kinetic model. Both initial pH and temperature influenced the adsorption performance with no collapse of microbeads within solution pH range 3–7. Most importantly for practical applications, these microspheres can be separated and recovered from aqueous solution by a magnetic separation technology to facilitate large-scale treatment of antimony-containing wastewater.

KW - Ferriferous oxide polishing sludge

KW - Sodium alginate

KW - Microbeads

KW - Adsorption

KW - Antimony-containing wastewater

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