A Novel Nonenzymatic Hydrogen Peroxide Sensor Based on Magnetic Core-Shell Fe3O4@C/Au Nanoparticle Nanocomposite
Fe3O4@C/Au nanoparticle (AuNP) nanocomposites were prepared through electrostatic adsorption of AuNPs onto PDDA-functionalized core/shell Fe3O4@C magnetic nanospheres, which had been synthesized by a facile solvothermal method. The morphology and composition of the nanocomposites were characterized...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
|
| Series: | International Journal of Analytical Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2021/8839895 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832552527381397504 |
|---|---|
| author | Xiao Ni Mingwei Tian Jun Sun Xiaojun Chen |
| author_facet | Xiao Ni Mingwei Tian Jun Sun Xiaojun Chen |
| author_sort | Xiao Ni |
| collection | DOAJ |
| description | Fe3O4@C/Au nanoparticle (AuNP) nanocomposites were prepared through electrostatic adsorption of AuNPs onto PDDA-functionalized core/shell Fe3O4@C magnetic nanospheres, which had been synthesized by a facile solvothermal method. The morphology and composition of the nanocomposites were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), Fourier transform infrared (FT-IR), etc. Moreover, highly electrocatalytic activity to the reduction of hydrogen peroxide (H2O2) was also exhibited on the Fe3O4@C/AuNP-modified indium tin oxide (ITO) electrode. The effect of solution pH and the modification amount of Fe3O4@C/AuNPs on the performance of electrocatalytic H2O2 reduction was investigated. Under the optimal conditions, the catalytic current showed a linear relationship with the increase of H2O2 concentration in the range of 0.007–15 mM and a detection limit of 5 μM. The H2O2 sensor showed high selectivity for H2O2 detection, which could effectively resist the interference of ascorbic acid (AA), uric acid (UA), and citric acid (CA). Finally, the H2O2 sensor was used in the real fetal bovine serum to detect H2O2 and obtained satisfactory results with the recovery values ranging from 95.14 to 103.6%. |
| format | Article |
| id | doaj-art-c521decd924d454b9e5a70c349725018 |
| institution | Kabale University |
| issn | 1687-8760 1687-8779 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Analytical Chemistry |
| spelling | doaj-art-c521decd924d454b9e5a70c3497250182025-02-03T05:58:26ZengWileyInternational Journal of Analytical Chemistry1687-87601687-87792021-01-01202110.1155/2021/88398958839895A Novel Nonenzymatic Hydrogen Peroxide Sensor Based on Magnetic Core-Shell Fe3O4@C/Au Nanoparticle NanocompositeXiao Ni0Mingwei Tian1Jun Sun2Xiaojun Chen3College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211800, ChinaCollege of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211800, ChinaCollege of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211800, ChinaCollege of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211800, ChinaFe3O4@C/Au nanoparticle (AuNP) nanocomposites were prepared through electrostatic adsorption of AuNPs onto PDDA-functionalized core/shell Fe3O4@C magnetic nanospheres, which had been synthesized by a facile solvothermal method. The morphology and composition of the nanocomposites were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), Fourier transform infrared (FT-IR), etc. Moreover, highly electrocatalytic activity to the reduction of hydrogen peroxide (H2O2) was also exhibited on the Fe3O4@C/AuNP-modified indium tin oxide (ITO) electrode. The effect of solution pH and the modification amount of Fe3O4@C/AuNPs on the performance of electrocatalytic H2O2 reduction was investigated. Under the optimal conditions, the catalytic current showed a linear relationship with the increase of H2O2 concentration in the range of 0.007–15 mM and a detection limit of 5 μM. The H2O2 sensor showed high selectivity for H2O2 detection, which could effectively resist the interference of ascorbic acid (AA), uric acid (UA), and citric acid (CA). Finally, the H2O2 sensor was used in the real fetal bovine serum to detect H2O2 and obtained satisfactory results with the recovery values ranging from 95.14 to 103.6%.http://dx.doi.org/10.1155/2021/8839895 |
| spellingShingle | Xiao Ni Mingwei Tian Jun Sun Xiaojun Chen A Novel Nonenzymatic Hydrogen Peroxide Sensor Based on Magnetic Core-Shell Fe3O4@C/Au Nanoparticle Nanocomposite International Journal of Analytical Chemistry |
| title | A Novel Nonenzymatic Hydrogen Peroxide Sensor Based on Magnetic Core-Shell Fe3O4@C/Au Nanoparticle Nanocomposite |
| title_full | A Novel Nonenzymatic Hydrogen Peroxide Sensor Based on Magnetic Core-Shell Fe3O4@C/Au Nanoparticle Nanocomposite |
| title_fullStr | A Novel Nonenzymatic Hydrogen Peroxide Sensor Based on Magnetic Core-Shell Fe3O4@C/Au Nanoparticle Nanocomposite |
| title_full_unstemmed | A Novel Nonenzymatic Hydrogen Peroxide Sensor Based on Magnetic Core-Shell Fe3O4@C/Au Nanoparticle Nanocomposite |
| title_short | A Novel Nonenzymatic Hydrogen Peroxide Sensor Based on Magnetic Core-Shell Fe3O4@C/Au Nanoparticle Nanocomposite |
| title_sort | novel nonenzymatic hydrogen peroxide sensor based on magnetic core shell fe3o4 c au nanoparticle nanocomposite |
| url | http://dx.doi.org/10.1155/2021/8839895 |
| work_keys_str_mv | AT xiaoni anovelnonenzymatichydrogenperoxidesensorbasedonmagneticcoreshellfe3o4caunanoparticlenanocomposite AT mingweitian anovelnonenzymatichydrogenperoxidesensorbasedonmagneticcoreshellfe3o4caunanoparticlenanocomposite AT junsun anovelnonenzymatichydrogenperoxidesensorbasedonmagneticcoreshellfe3o4caunanoparticlenanocomposite AT xiaojunchen anovelnonenzymatichydrogenperoxidesensorbasedonmagneticcoreshellfe3o4caunanoparticlenanocomposite AT xiaoni novelnonenzymatichydrogenperoxidesensorbasedonmagneticcoreshellfe3o4caunanoparticlenanocomposite AT mingweitian novelnonenzymatichydrogenperoxidesensorbasedonmagneticcoreshellfe3o4caunanoparticlenanocomposite AT junsun novelnonenzymatichydrogenperoxidesensorbasedonmagneticcoreshellfe3o4caunanoparticlenanocomposite AT xiaojunchen novelnonenzymatichydrogenperoxidesensorbasedonmagneticcoreshellfe3o4caunanoparticlenanocomposite |