Examination of current adsorption models for Pb(II) and Cu(II) adsorption onto FeO@MgAl-NO Layered Double Hydroxide in aqueous solution
The adsorption of Pb(II) and Cu(II) onto Fe 3 O 4 @Mg 2 Al-NO 3 Layered Double Hydroxide (LDH) as a function of Fe 3 O 4 @Mg 2 Al-NO 3 LDH concentration was studied. An adsorbent concentration effect ( C s effect), namely adsorption isotherm declines as adsorbent concentration ( C s ) increases, was...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2018-02-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1177/0263617417714166 |
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| author | Ling-Xi Zhao Ming-Chao Jiang Ling-Yu Luan Qing Li Jing Zhang |
| author_facet | Ling-Xi Zhao Ming-Chao Jiang Ling-Yu Luan Qing Li Jing Zhang |
| author_sort | Ling-Xi Zhao |
| collection | DOAJ |
| description | The adsorption of Pb(II) and Cu(II) onto Fe 3 O 4 @Mg 2 Al-NO 3 Layered Double Hydroxide (LDH) as a function of Fe 3 O 4 @Mg 2 Al-NO 3 LDH concentration was studied. An adsorbent concentration effect ( C s effect), namely adsorption isotherm declines as adsorbent concentration ( C s ) increases, was observed. The experimental data were fitted to the adsorption models including the classic Freundlich model, the metastable-equilibrium adsorption theory, the flocculation model, the power function model, and the surface component activity model. The results show that the Freundlich-type metastable-equilibrium adsorption equation, the power function model, and the Freundlich-surface component activity equation can adequately describe the C s effect observed in the batch adsorption tests as all the correlation coefficients ( R 2 ) of the nonlinear plots are higher than 0.96. In other words, their intrinsic parameters simulated from the experimental data are independent of C s value. It is considered that the Freundlich-surface component activity equation is the best model to describe the C s effect of the studied adsorption systems by Akaike Information Criterion evaluation criterion. |
| format | Article |
| id | doaj-art-8987a217887648d895abc359739fdb88 |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2018-02-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-8987a217887648d895abc359739fdb882025-01-03T01:23:07ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382018-02-013610.1177/0263617417714166Examination of current adsorption models for Pb(II) and Cu(II) adsorption onto FeO@MgAl-NO Layered Double Hydroxide in aqueous solutionLing-Xi ZhaoMing-Chao JiangLing-Yu LuanQing LiJing ZhangThe adsorption of Pb(II) and Cu(II) onto Fe 3 O 4 @Mg 2 Al-NO 3 Layered Double Hydroxide (LDH) as a function of Fe 3 O 4 @Mg 2 Al-NO 3 LDH concentration was studied. An adsorbent concentration effect ( C s effect), namely adsorption isotherm declines as adsorbent concentration ( C s ) increases, was observed. The experimental data were fitted to the adsorption models including the classic Freundlich model, the metastable-equilibrium adsorption theory, the flocculation model, the power function model, and the surface component activity model. The results show that the Freundlich-type metastable-equilibrium adsorption equation, the power function model, and the Freundlich-surface component activity equation can adequately describe the C s effect observed in the batch adsorption tests as all the correlation coefficients ( R 2 ) of the nonlinear plots are higher than 0.96. In other words, their intrinsic parameters simulated from the experimental data are independent of C s value. It is considered that the Freundlich-surface component activity equation is the best model to describe the C s effect of the studied adsorption systems by Akaike Information Criterion evaluation criterion.https://doi.org/10.1177/0263617417714166 |
| spellingShingle | Ling-Xi Zhao Ming-Chao Jiang Ling-Yu Luan Qing Li Jing Zhang Examination of current adsorption models for Pb(II) and Cu(II) adsorption onto FeO@MgAl-NO Layered Double Hydroxide in aqueous solution Adsorption Science & Technology |
| title | Examination of current adsorption models for Pb(II) and Cu(II) adsorption onto FeO@MgAl-NO Layered Double Hydroxide in aqueous solution |
| title_full | Examination of current adsorption models for Pb(II) and Cu(II) adsorption onto FeO@MgAl-NO Layered Double Hydroxide in aqueous solution |
| title_fullStr | Examination of current adsorption models for Pb(II) and Cu(II) adsorption onto FeO@MgAl-NO Layered Double Hydroxide in aqueous solution |
| title_full_unstemmed | Examination of current adsorption models for Pb(II) and Cu(II) adsorption onto FeO@MgAl-NO Layered Double Hydroxide in aqueous solution |
| title_short | Examination of current adsorption models for Pb(II) and Cu(II) adsorption onto FeO@MgAl-NO Layered Double Hydroxide in aqueous solution |
| title_sort | examination of current adsorption models for pb ii and cu ii adsorption onto feo mgal no layered double hydroxide in aqueous solution |
| url | https://doi.org/10.1177/0263617417714166 |
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