Synthesis of Zn/Al layered double hydroxides magnetic-nanoparticle for removal of humic acid
A novel adsorbent of Zn/Al-LDH functionalized magnetic composite nanomaterial was successfully synthesis using a hydrothermal co-precipitation approach with NaOH as precipitating agent, and applied for the removal of humic acid (HA) from aqueous solution. The preparation, morphology, composition, an...
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| Language: | English |
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Elsevier
2024-01-01
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| Series: | Desalination and Water Treatment |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1944398624001188 |
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| author | Yuan Bai Rui Ma Zongxian Jing Xinwen Wan Jingyan Tong Weiting Huang Jie Liu |
| author_facet | Yuan Bai Rui Ma Zongxian Jing Xinwen Wan Jingyan Tong Weiting Huang Jie Liu |
| author_sort | Yuan Bai |
| collection | DOAJ |
| description | A novel adsorbent of Zn/Al-LDH functionalized magnetic composite nanomaterial was successfully synthesis using a hydrothermal co-precipitation approach with NaOH as precipitating agent, and applied for the removal of humic acid (HA) from aqueous solution. The preparation, morphology, composition, and magnetic properties of Fe3O4 @SiO2-Zn/Al LDH were characterized by SEM, TEM, EDS, XRD, VSM, FT-IR and XPS. Batch experiments were carried out to investigate the influence of contact time, initial concentration, solution pH and conformed to the pseudo-second-order and Freundlich isotherm models. The adsorption test on HA demonstrated that Fe3O4 @SiO2-Zn/Al LDH exhibited optimal removal efficiency at pH 4.0, with an initial concentration of 100 mg/L and contact time of 10 min. At room temperature, 1 g Fe3O4 @SiO2-Zn/Al LDH demonstrated a removal capacity of 46.16 mg/g. These results indicated that lower pH were beneficial to the adsorption process. Fe3O4 coated with SiO2, which improves the stability and acid resistance of the overall material. Moreover, XRD, XPS and FT-IR analyzes proved that the electrostatic interactions and ion-exchange were responsible for removal of HA on Fe3O4 @SiO2-Zn/Al LDH. |
| format | Article |
| id | doaj-art-217f567956d34776b4261bb8ccceb5e3 |
| institution | OA Journals |
| issn | 1944-3986 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Desalination and Water Treatment |
| spelling | doaj-art-217f567956d34776b4261bb8ccceb5e32025-08-20T02:17:28ZengElsevierDesalination and Water Treatment1944-39862024-01-0131710009710.1016/j.dwt.2024.100097Synthesis of Zn/Al layered double hydroxides magnetic-nanoparticle for removal of humic acidYuan Bai0Rui Ma1Zongxian Jing2Xinwen Wan3Jingyan Tong4Weiting Huang5Jie Liu6School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, People’s Republic of China; Key Laboratory of Yellow River Water Environment in Gansu Province, Lanzhou Jiaotong University, Lanzhou 730070, People’s Republic of China; Corresponding author at: School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, People’s Republic of China.School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, People’s Republic of ChinaSchool of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, People’s Republic of ChinaSchool of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, People’s Republic of ChinaSouthwest Municipal Engineering Design &Research Institute of China, Chengdu 610081, People’s Republic of ChinaSchool of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, People’s Republic of ChinaSchool of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, People’s Republic of ChinaA novel adsorbent of Zn/Al-LDH functionalized magnetic composite nanomaterial was successfully synthesis using a hydrothermal co-precipitation approach with NaOH as precipitating agent, and applied for the removal of humic acid (HA) from aqueous solution. The preparation, morphology, composition, and magnetic properties of Fe3O4 @SiO2-Zn/Al LDH were characterized by SEM, TEM, EDS, XRD, VSM, FT-IR and XPS. Batch experiments were carried out to investigate the influence of contact time, initial concentration, solution pH and conformed to the pseudo-second-order and Freundlich isotherm models. The adsorption test on HA demonstrated that Fe3O4 @SiO2-Zn/Al LDH exhibited optimal removal efficiency at pH 4.0, with an initial concentration of 100 mg/L and contact time of 10 min. At room temperature, 1 g Fe3O4 @SiO2-Zn/Al LDH demonstrated a removal capacity of 46.16 mg/g. These results indicated that lower pH were beneficial to the adsorption process. Fe3O4 coated with SiO2, which improves the stability and acid resistance of the overall material. Moreover, XRD, XPS and FT-IR analyzes proved that the electrostatic interactions and ion-exchange were responsible for removal of HA on Fe3O4 @SiO2-Zn/Al LDH.http://www.sciencedirect.com/science/article/pii/S1944398624001188Humic acidAdsorptionMagnetic composite nanomaterialLayered double hydroxides (LDHs) |
| spellingShingle | Yuan Bai Rui Ma Zongxian Jing Xinwen Wan Jingyan Tong Weiting Huang Jie Liu Synthesis of Zn/Al layered double hydroxides magnetic-nanoparticle for removal of humic acid Desalination and Water Treatment Humic acid Adsorption Magnetic composite nanomaterial Layered double hydroxides (LDHs) |
| title | Synthesis of Zn/Al layered double hydroxides magnetic-nanoparticle for removal of humic acid |
| title_full | Synthesis of Zn/Al layered double hydroxides magnetic-nanoparticle for removal of humic acid |
| title_fullStr | Synthesis of Zn/Al layered double hydroxides magnetic-nanoparticle for removal of humic acid |
| title_full_unstemmed | Synthesis of Zn/Al layered double hydroxides magnetic-nanoparticle for removal of humic acid |
| title_short | Synthesis of Zn/Al layered double hydroxides magnetic-nanoparticle for removal of humic acid |
| title_sort | synthesis of zn al layered double hydroxides magnetic nanoparticle for removal of humic acid |
| topic | Humic acid Adsorption Magnetic composite nanomaterial Layered double hydroxides (LDHs) |
| url | http://www.sciencedirect.com/science/article/pii/S1944398624001188 |
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