Fabrication of magnetic cobalt-nickel ferrite nanoparticles for the adsorption of methyl blue in aqueous solutions
An innovative method of combustion–calcination of a nitrate–ethanol solution to produce magnetic Co _0.5 Ni _0.5 Fe _2 O _4 nanoparticles was developed. The calcination temperature and the volume of ethanol were two pivotal elements that determine the properties of the Co _0.5 Ni _0.5 Fe _2 O _4 nan...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2021-01-01
|
| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/ac3106 |
| _version_ | 1797746735263514624 |
|---|---|
| author | Hezhong Ouyang Shuyan Liu Dandan Liu Yan Wang Shuping Xu Shengying Pan |
| author_facet | Hezhong Ouyang Shuyan Liu Dandan Liu Yan Wang Shuping Xu Shengying Pan |
| author_sort | Hezhong Ouyang |
| collection | DOAJ |
| description | An innovative method of combustion–calcination of a nitrate–ethanol solution to produce magnetic Co _0.5 Ni _0.5 Fe _2 O _4 nanoparticles was developed. The calcination temperature and the volume of ethanol were two pivotal elements that determine the properties of the Co _0.5 Ni _0.5 Fe _2 O _4 nanoparticles in this study. When the volume of ethanol used was increased from 20 ml to 40 ml, the crystallinity of the Co _0.5 Ni _0.5 Fe _2 O _4 nanoparticles increased; further increase of the volume of ethanol decreased the crystallinity. The smallest nanoparticle was obtained using 20 ml ethanol. As the calcination temperature increased from 400 °C to 700 °C, the saturation magnetization of the Co _0.5 Ni _0.5 Fe _2 O _4 nanoparticles increased from 12.8 emu g ^−1 to 30.8 emu g ^−1 . Co _0.5 Ni _0.5 Fe _2 O _4 nanoparticles fabricated using 20 ml ethanol at 400 °C were used to study the removal of methyl blue (MB) by adsorption. Experimental data revealed that the adsorption was best described by pseudo-second kinetics. The adsorption isotherm applied the Temkin model, which indicated the presence of a single and multilayer associative mechanism in the adsorption of MB on the Co _0.5 Ni _0.5 Fe _2 O _4 nanoparticles. The effect of pH and recycling on the adsorption was measured. At pH values ≥5, the adsorption was high. After eight cycles of use and recycling, the relative removal rate of MB by the Co _0.5 Ni _0.5 Fe _2 O _4 nanoparticles was 75% of the initial adsorption value. |
| first_indexed | 2024-03-12T15:41:06Z |
| format | Article |
| id | doaj.art-528849aabf5d4047b4bce67f36d58309 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:41:06Z |
| publishDate | 2021-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-528849aabf5d4047b4bce67f36d583092023-08-09T15:57:19ZengIOP PublishingMaterials Research Express2053-15912021-01-0181010501310.1088/2053-1591/ac3106Fabrication of magnetic cobalt-nickel ferrite nanoparticles for the adsorption of methyl blue in aqueous solutionsHezhong Ouyang0https://orcid.org/0000-0002-4173-6909Shuyan Liu1Dandan Liu2Yan Wang3Shuping Xu4Shengying Pan5https://orcid.org/0000-0002-2015-8345The People’s Hospital of Danyang, Affiliated Danyang Hospital of Nantong University , Zhenjiang 212300, People’s Republic of ChinaThe People’s Hospital of Danyang, Affiliated Danyang Hospital of Nantong University , Zhenjiang 212300, People’s Republic of ChinaThe People’s Hospital of Danyang, Affiliated Danyang Hospital of Nantong University , Zhenjiang 212300, People’s Republic of ChinaThe People’s Hospital of Danyang, Affiliated Danyang Hospital of Nantong University , Zhenjiang 212300, People’s Republic of ChinaThe People’s Hospital of Danyang, Affiliated Danyang Hospital of Nantong University , Zhenjiang 212300, People’s Republic of ChinaThe People’s Hospital of Danyang, Affiliated Danyang Hospital of Nantong University , Zhenjiang 212300, People’s Republic of ChinaAn innovative method of combustion–calcination of a nitrate–ethanol solution to produce magnetic Co _0.5 Ni _0.5 Fe _2 O _4 nanoparticles was developed. The calcination temperature and the volume of ethanol were two pivotal elements that determine the properties of the Co _0.5 Ni _0.5 Fe _2 O _4 nanoparticles in this study. When the volume of ethanol used was increased from 20 ml to 40 ml, the crystallinity of the Co _0.5 Ni _0.5 Fe _2 O _4 nanoparticles increased; further increase of the volume of ethanol decreased the crystallinity. The smallest nanoparticle was obtained using 20 ml ethanol. As the calcination temperature increased from 400 °C to 700 °C, the saturation magnetization of the Co _0.5 Ni _0.5 Fe _2 O _4 nanoparticles increased from 12.8 emu g ^−1 to 30.8 emu g ^−1 . Co _0.5 Ni _0.5 Fe _2 O _4 nanoparticles fabricated using 20 ml ethanol at 400 °C were used to study the removal of methyl blue (MB) by adsorption. Experimental data revealed that the adsorption was best described by pseudo-second kinetics. The adsorption isotherm applied the Temkin model, which indicated the presence of a single and multilayer associative mechanism in the adsorption of MB on the Co _0.5 Ni _0.5 Fe _2 O _4 nanoparticles. The effect of pH and recycling on the adsorption was measured. At pH values ≥5, the adsorption was high. After eight cycles of use and recycling, the relative removal rate of MB by the Co _0.5 Ni _0.5 Fe _2 O _4 nanoparticles was 75% of the initial adsorption value.https://doi.org/10.1088/2053-1591/ac3106Co0.5Ni0.5Fe2O4 nanoparticlescombustion-calcination techniquemethyl blueadsorption kineticsadsorption isotherm |
| spellingShingle | Hezhong Ouyang Shuyan Liu Dandan Liu Yan Wang Shuping Xu Shengying Pan Fabrication of magnetic cobalt-nickel ferrite nanoparticles for the adsorption of methyl blue in aqueous solutions Materials Research Express Co0.5Ni0.5Fe2O4 nanoparticles combustion-calcination technique methyl blue adsorption kinetics adsorption isotherm |
| title | Fabrication of magnetic cobalt-nickel ferrite nanoparticles for the adsorption of methyl blue in aqueous solutions |
| title_full | Fabrication of magnetic cobalt-nickel ferrite nanoparticles for the adsorption of methyl blue in aqueous solutions |
| title_fullStr | Fabrication of magnetic cobalt-nickel ferrite nanoparticles for the adsorption of methyl blue in aqueous solutions |
| title_full_unstemmed | Fabrication of magnetic cobalt-nickel ferrite nanoparticles for the adsorption of methyl blue in aqueous solutions |
| title_short | Fabrication of magnetic cobalt-nickel ferrite nanoparticles for the adsorption of methyl blue in aqueous solutions |
| title_sort | fabrication of magnetic cobalt nickel ferrite nanoparticles for the adsorption of methyl blue in aqueous solutions |
| topic | Co0.5Ni0.5Fe2O4 nanoparticles combustion-calcination technique methyl blue adsorption kinetics adsorption isotherm |
| url | https://doi.org/10.1088/2053-1591/ac3106 |
| work_keys_str_mv | AT hezhongouyang fabricationofmagneticcobaltnickelferritenanoparticlesfortheadsorptionofmethylblueinaqueoussolutions AT shuyanliu fabricationofmagneticcobaltnickelferritenanoparticlesfortheadsorptionofmethylblueinaqueoussolutions AT dandanliu fabricationofmagneticcobaltnickelferritenanoparticlesfortheadsorptionofmethylblueinaqueoussolutions AT yanwang fabricationofmagneticcobaltnickelferritenanoparticlesfortheadsorptionofmethylblueinaqueoussolutions AT shupingxu fabricationofmagneticcobaltnickelferritenanoparticlesfortheadsorptionofmethylblueinaqueoussolutions AT shengyingpan fabricationofmagneticcobaltnickelferritenanoparticlesfortheadsorptionofmethylblueinaqueoussolutions |