Synthesis and characterization of novel Mg(OH)2/CdS heteronanostructures for sunlight induced degradation of phenolic pollutant
Mg(OH)2/CdS heteronanostructures have been successfully synthesized by a novel precipitation method and the synthesis involves three steps. The first step involves the synthesis of Mg (OH)2nanoparticles using homogeneous precipitation method. Then, surface-modifying agent citric acid was used to fun...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Iranian Environmental Mutagen Society
2021-10-01
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| Series: | Journal of Water and Environmental Nanotechnology |
| Subjects: | |
| Online Access: | http://www.jwent.net/article_248282_e22c681599ce756f5cde5cd4471a8a28.pdf |
| _version_ | 1797836673404370944 |
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| author | Aishwarya Singh bhavani nenavathu |
| author_facet | Aishwarya Singh bhavani nenavathu |
| author_sort | Aishwarya Singh |
| collection | DOAJ |
| description | Mg(OH)2/CdS heteronanostructures have been successfully synthesized by a novel precipitation method and the synthesis involves three steps. The first step involves the synthesis of Mg (OH)2nanoparticles using homogeneous precipitation method. Then, surface-modifying agent citric acid was used to functionalise Mg (OH)2. Finally, the cadmium sulfide (CdS) shell was deposited on the surface modified Mg (OH)2by co-precipitation method. The Mg(OH)2/CdS heteronanostructures were characterized using X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy (TEM), diffuse reflectance spectroscopy (DRS) and photoluminescence spectroscopy. DRS results showed blue shift of CdS band gap absorption with respect to bulk CdS. XPS results showed evidence for the binding energies of Mg(OH)2, Cd and S. The Mg (OH)2/CdS heteronanostructures was explored as catalyst for sunlight induced photocatalytic degradation of β- naphthol pollutant. The batch of 0.2 mg/ mL of Mg (OH)2/CdS heteronanostructures maintained at pH 8.5 showed maximum photodegradation efficiency (75 ± 2.1 %). Higher photocatalytic degradation efficiency for Mg(OH)2/CdS heteronanostructures could be due to incorporation of CdS and increased reactive oxygen species (ROS) generation. The reusability of the Mg (OH)2/CdS heteronanostructures was also tested, and they show stability for up to three cycles without loss of efficiency. |
| first_indexed | 2024-04-09T15:13:48Z |
| format | Article |
| id | doaj.art-47bc666f850641139c5635e75127b45a |
| institution | Directory Open Access Journal |
| issn | 2476-7204 2476-6615 |
| language | English |
| last_indexed | 2024-04-09T15:13:48Z |
| publishDate | 2021-10-01 |
| publisher | Iranian Environmental Mutagen Society |
| record_format | Article |
| series | Journal of Water and Environmental Nanotechnology |
| spelling | doaj.art-47bc666f850641139c5635e75127b45a2023-04-30T07:03:45ZengIranian Environmental Mutagen SocietyJournal of Water and Environmental Nanotechnology2476-72042476-66152021-10-016429430510.22090/jwent.2021.04.001248282Synthesis and characterization of novel Mg(OH)2/CdS heteronanostructures for sunlight induced degradation of phenolic pollutantAishwarya Singh0bhavani nenavathu1Department of Applied Sciences and Humanities Indira Gandhi Delhi Technical University Delhi-110006 Ph: 08826629331applied sciences and humanities department, indira gandhi delhi technical university for wome, delhi, india.110006Mg(OH)2/CdS heteronanostructures have been successfully synthesized by a novel precipitation method and the synthesis involves three steps. The first step involves the synthesis of Mg (OH)2nanoparticles using homogeneous precipitation method. Then, surface-modifying agent citric acid was used to functionalise Mg (OH)2. Finally, the cadmium sulfide (CdS) shell was deposited on the surface modified Mg (OH)2by co-precipitation method. The Mg(OH)2/CdS heteronanostructures were characterized using X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy (TEM), diffuse reflectance spectroscopy (DRS) and photoluminescence spectroscopy. DRS results showed blue shift of CdS band gap absorption with respect to bulk CdS. XPS results showed evidence for the binding energies of Mg(OH)2, Cd and S. The Mg (OH)2/CdS heteronanostructures was explored as catalyst for sunlight induced photocatalytic degradation of β- naphthol pollutant. The batch of 0.2 mg/ mL of Mg (OH)2/CdS heteronanostructures maintained at pH 8.5 showed maximum photodegradation efficiency (75 ± 2.1 %). Higher photocatalytic degradation efficiency for Mg(OH)2/CdS heteronanostructures could be due to incorporation of CdS and increased reactive oxygen species (ROS) generation. The reusability of the Mg (OH)2/CdS heteronanostructures was also tested, and they show stability for up to three cycles without loss of efficiency.http://www.jwent.net/article_248282_e22c681599ce756f5cde5cd4471a8a28.pdfmg(oh)2/cds heteronanostructuresβ- naphthol pollutantphotocatalysis |
| spellingShingle | Aishwarya Singh bhavani nenavathu Synthesis and characterization of novel Mg(OH)2/CdS heteronanostructures for sunlight induced degradation of phenolic pollutant Journal of Water and Environmental Nanotechnology mg(oh)2/cds heteronanostructures β- naphthol pollutant photocatalysis |
| title | Synthesis and characterization of novel Mg(OH)2/CdS heteronanostructures for sunlight induced degradation of phenolic pollutant |
| title_full | Synthesis and characterization of novel Mg(OH)2/CdS heteronanostructures for sunlight induced degradation of phenolic pollutant |
| title_fullStr | Synthesis and characterization of novel Mg(OH)2/CdS heteronanostructures for sunlight induced degradation of phenolic pollutant |
| title_full_unstemmed | Synthesis and characterization of novel Mg(OH)2/CdS heteronanostructures for sunlight induced degradation of phenolic pollutant |
| title_short | Synthesis and characterization of novel Mg(OH)2/CdS heteronanostructures for sunlight induced degradation of phenolic pollutant |
| title_sort | synthesis and characterization of novel mg oh 2 cds heteronanostructures for sunlight induced degradation of phenolic pollutant |
| topic | mg(oh)2/cds heteronanostructures β- naphthol pollutant photocatalysis |
| url | http://www.jwent.net/article_248282_e22c681599ce756f5cde5cd4471a8a28.pdf |
| work_keys_str_mv | AT aishwaryasingh synthesisandcharacterizationofnovelmgoh2cdsheteronanostructuresforsunlightinduceddegradationofphenolicpollutant AT bhavaninenavathu synthesisandcharacterizationofnovelmgoh2cdsheteronanostructuresforsunlightinduceddegradationofphenolicpollutant |