Water remediation and antibacterial characteristics of CdO, graphene oxide and reduced graphene oxide blended CdO nanoparticles – A comparative study
The antibacterial and water remediation capabilities of CdO (CO), graphene oxide blended CdO (GCO), and reduced graphene oxide blended CdO (rCO) nanoparticles produced using one-pot green synthesis and chemical precipitation techniques have been compared. XRD, SEM, TEM, BET, XPS, UV–Vis–NIR, PL, and...
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Elsevier
2025-04-01
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| Series: | Chemistry of Inorganic Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949746925000047 |
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| author | N. Manjula A.R. Balu N. Arunkumar S. Chitra Devi M. Sriramraj V. Rajamani A. Vinith |
| author_facet | N. Manjula A.R. Balu N. Arunkumar S. Chitra Devi M. Sriramraj V. Rajamani A. Vinith |
| author_sort | N. Manjula |
| collection | DOAJ |
| description | The antibacterial and water remediation capabilities of CdO (CO), graphene oxide blended CdO (GCO), and reduced graphene oxide blended CdO (rCO) nanoparticles produced using one-pot green synthesis and chemical precipitation techniques have been compared. XRD, SEM, TEM, BET, XPS, UV–Vis–NIR, PL, and FTIR techniques were employed to characterise the produced NPs. CO, GCO, and rCO all have a cubic crystal structure and tend to grow in a (1 1 1) direction. The scanning electron micrographs showed that the grains were evenly distributed. Oxidation states of Cd and O in rCO sample were Cd2+ and O2− from XPS analysis. Cd–O stretching vibration occurs at 668, 556 and 472 cm−1 for CO, GCO and rCO, respectively. Optical absorption of CO increased with GO and rGO blending. Blending GO reduced CO's band gap from 2.44 to 2.41 and rGO lowered it to 2.39 eV. The photodegradation effectiveness of CO, GCO and rCO against methyl orange (MO) dye under visible light was 80.9, 86.6 and 95 % after 90 min. Bacterial growth inhibition quality of CO increased with GO/rGO blending and they show better resistance against B. subtilis (gram + ve) than E. coli (gram –ve) bacteria. Compared to GCO, rCO exhibited better photocatalytic and antibacterial properties signifying its potential for water remediation and antibacterial applications. |
| format | Article |
| id | doaj-art-ae201ef8e163448f865a7ba5d201cd43 |
| institution | Kabale University |
| issn | 2949-7469 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Chemistry of Inorganic Materials |
| spelling | doaj-art-ae201ef8e163448f865a7ba5d201cd432025-02-07T04:48:36ZengElsevierChemistry of Inorganic Materials2949-74692025-04-015100090Water remediation and antibacterial characteristics of CdO, graphene oxide and reduced graphene oxide blended CdO nanoparticles – A comparative studyN. Manjula0A.R. Balu1N. Arunkumar2S. Chitra Devi3M. Sriramraj4V. Rajamani5A. Vinith6Department of Physics, AVVM Sri Pushpam College (Affiliated to Bharathidasan University, Tiruchirappalli), Poondi, Tamilnadu, IndiaDepartment of Physics, AVVM Sri Pushpam College (Affiliated to Bharathidasan University, Tiruchirappalli), Poondi, Tamilnadu, India; Corresponding author.Department of Physics, AVVM Sri Pushpam College (Affiliated to Bharathidasan University, Tiruchirappalli), Poondi, Tamilnadu, India; Department of Physics, Anjalai Ammal Engineering College, Kovilvenni, Tamilnadu, IndiaDepartment of Physics, Auxilium College for women, Regunathapuram, Tamilnadu, IndiaDepartment of Physics, AVVM Sri Pushpam College (Affiliated to Bharathidasan University, Tiruchirappalli), Poondi, Tamilnadu, IndiaDepartment of Physics, AVVM Sri Pushpam College (Affiliated to Bharathidasan University, Tiruchirappalli), Poondi, Tamilnadu, IndiaDepartment of Physics, AVVM Sri Pushpam College (Affiliated to Bharathidasan University, Tiruchirappalli), Poondi, Tamilnadu, IndiaThe antibacterial and water remediation capabilities of CdO (CO), graphene oxide blended CdO (GCO), and reduced graphene oxide blended CdO (rCO) nanoparticles produced using one-pot green synthesis and chemical precipitation techniques have been compared. XRD, SEM, TEM, BET, XPS, UV–Vis–NIR, PL, and FTIR techniques were employed to characterise the produced NPs. CO, GCO, and rCO all have a cubic crystal structure and tend to grow in a (1 1 1) direction. The scanning electron micrographs showed that the grains were evenly distributed. Oxidation states of Cd and O in rCO sample were Cd2+ and O2− from XPS analysis. Cd–O stretching vibration occurs at 668, 556 and 472 cm−1 for CO, GCO and rCO, respectively. Optical absorption of CO increased with GO and rGO blending. Blending GO reduced CO's band gap from 2.44 to 2.41 and rGO lowered it to 2.39 eV. The photodegradation effectiveness of CO, GCO and rCO against methyl orange (MO) dye under visible light was 80.9, 86.6 and 95 % after 90 min. Bacterial growth inhibition quality of CO increased with GO/rGO blending and they show better resistance against B. subtilis (gram + ve) than E. coli (gram –ve) bacteria. Compared to GCO, rCO exhibited better photocatalytic and antibacterial properties signifying its potential for water remediation and antibacterial applications.http://www.sciencedirect.com/science/article/pii/S2949746925000047Blendingππ stacking interfacePhotoluminescencebacterial growth inhibitionPhotodegradation |
| spellingShingle | N. Manjula A.R. Balu N. Arunkumar S. Chitra Devi M. Sriramraj V. Rajamani A. Vinith Water remediation and antibacterial characteristics of CdO, graphene oxide and reduced graphene oxide blended CdO nanoparticles – A comparative study Chemistry of Inorganic Materials Blending π π stacking interface Photoluminescence bacterial growth inhibition Photodegradation |
| title | Water remediation and antibacterial characteristics of CdO, graphene oxide and reduced graphene oxide blended CdO nanoparticles – A comparative study |
| title_full | Water remediation and antibacterial characteristics of CdO, graphene oxide and reduced graphene oxide blended CdO nanoparticles – A comparative study |
| title_fullStr | Water remediation and antibacterial characteristics of CdO, graphene oxide and reduced graphene oxide blended CdO nanoparticles – A comparative study |
| title_full_unstemmed | Water remediation and antibacterial characteristics of CdO, graphene oxide and reduced graphene oxide blended CdO nanoparticles – A comparative study |
| title_short | Water remediation and antibacterial characteristics of CdO, graphene oxide and reduced graphene oxide blended CdO nanoparticles – A comparative study |
| title_sort | water remediation and antibacterial characteristics of cdo graphene oxide and reduced graphene oxide blended cdo nanoparticles a comparative study |
| topic | Blending π π stacking interface Photoluminescence bacterial growth inhibition Photodegradation |
| url | http://www.sciencedirect.com/science/article/pii/S2949746925000047 |
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