One-pot synthesis of layered double hydroxide hollow nanospheres with ultrafast removal efficiency for heavy metal ions and organic contaminants

Mahfuza Mubarak, Hyokyung Jeon, Md Shahinul Islam, Cheolho Yoon, Jong Seong Bae, Seong Ju Hwang, Won San Choi, Ha Jin Lee

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Herein, Mg/Fe layered double hydroxide (MF-LDH) hollow nanospheres were successfully prepared by a one-step thermal method. After the thermal treatment of MF-LDH nanospheres at 400 °C, the MF-LDH was converted into the corresponding oxide, Mg/Fe layered double oxide (MF-LDO), which maintained the hollow nanosphere structure. The MF-LDO hollow nanospheres exhibited excellent adsorption efficiency for both As(V) and Cr(VI), showing 99% removal within 5 min and providing maximum removal capacities of 178.6 mg g−1 [As(VI)] and 148.7 mg g−1 [Cr(VI)]. Moreover, it met the maximum contaminant level requirements recommended by World Health Organization (WHO); 10 ppm for As(V) and 50 ppm for Cr(VI) in 10 and 20 min, respectively. Furthermore, Au nanoparticles were successfully introduced in the MF-LDO hollow nanospheres, and the products showed a conversion rate of 100% for the reduction of 4-nitrophenol into 4-aminophenol within 5 min. It is believed that these excellent and versatile abilities integrated with a facile synthetic strategy will facilitate the practical application of this material in cost-effective wastewater purification.

Original languageEnglish
Pages (from-to)676-686
Number of pages11
JournalChemosphere
Volume201
DOIs
Publication statusPublished - 2018 Jun

Fingerprint

Nanospheres
Heavy Ions
Heavy Metals
Heavy ions
Heavy metals
hydroxide
Metal ions
Oxides
oxide
heavy metal
Impurities
ion
pollutant
Hot Temperature
World Health Organization
purification
Waste Water
Nanoparticles
Adsorption
Purification

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Chemistry(all)
  • Pollution
  • Health, Toxicology and Mutagenesis

Cite this

Mubarak, Mahfuza ; Jeon, Hyokyung ; Islam, Md Shahinul ; Yoon, Cheolho ; Bae, Jong Seong ; Hwang, Seong Ju ; Choi, Won San ; Lee, Ha Jin. / One-pot synthesis of layered double hydroxide hollow nanospheres with ultrafast removal efficiency for heavy metal ions and organic contaminants. In: Chemosphere. 2018 ; Vol. 201. pp. 676-686.
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One-pot synthesis of layered double hydroxide hollow nanospheres with ultrafast removal efficiency for heavy metal ions and organic contaminants. / Mubarak, Mahfuza; Jeon, Hyokyung; Islam, Md Shahinul; Yoon, Cheolho; Bae, Jong Seong; Hwang, Seong Ju; Choi, Won San; Lee, Ha Jin.

In: Chemosphere, Vol. 201, 06.2018, p. 676-686.

Research output: Contribution to journalArticle

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AU - Mubarak, Mahfuza

AU - Jeon, Hyokyung

AU - Islam, Md Shahinul

AU - Yoon, Cheolho

AU - Bae, Jong Seong

AU - Hwang, Seong Ju

AU - Choi, Won San

AU - Lee, Ha Jin

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N2 - Herein, Mg/Fe layered double hydroxide (MF-LDH) hollow nanospheres were successfully prepared by a one-step thermal method. After the thermal treatment of MF-LDH nanospheres at 400 °C, the MF-LDH was converted into the corresponding oxide, Mg/Fe layered double oxide (MF-LDO), which maintained the hollow nanosphere structure. The MF-LDO hollow nanospheres exhibited excellent adsorption efficiency for both As(V) and Cr(VI), showing 99% removal within 5 min and providing maximum removal capacities of 178.6 mg g−1 [As(VI)] and 148.7 mg g−1 [Cr(VI)]. Moreover, it met the maximum contaminant level requirements recommended by World Health Organization (WHO); 10 ppm for As(V) and 50 ppm for Cr(VI) in 10 and 20 min, respectively. Furthermore, Au nanoparticles were successfully introduced in the MF-LDO hollow nanospheres, and the products showed a conversion rate of 100% for the reduction of 4-nitrophenol into 4-aminophenol within 5 min. It is believed that these excellent and versatile abilities integrated with a facile synthetic strategy will facilitate the practical application of this material in cost-effective wastewater purification.

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