Reduced graphene oxide loaded La2O3 nanocomposite for dye degradation and antioxidant studies
The current research describes the synthesis and characterization of reduced graphene (rGO) doped with lanthanum oxide (La2O3/rGO). The nanocomposite was created using a simple reflux technique. To analyze the structure and characteristics of the synthesized nanoparticles, characterization technique...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-02-01
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| Series: | Results in Surfaces and Interfaces |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666845924000229 |
| _version_ | 1797262883553280000 |
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| author | Mylarappa Mylarappa Chandruvasan Selvam Harisha K. Sanjeevappa Prasanna Kumar S G Krishnamurthy G Kalasad Muttanagoud N |
| author_facet | Mylarappa Mylarappa Chandruvasan Selvam Harisha K. Sanjeevappa Prasanna Kumar S G Krishnamurthy G Kalasad Muttanagoud N |
| author_sort | Mylarappa Mylarappa |
| collection | DOAJ |
| description | The current research describes the synthesis and characterization of reduced graphene (rGO) doped with lanthanum oxide (La2O3/rGO). The nanocomposite was created using a simple reflux technique. To analyze the structure and characteristics of the synthesized nanoparticles, characterization techniques such as XRD, SEM, EDAX, FT-IR, BET, Raman, and UV studies were used. The photocatalytic capability of the La2O3/rGO nanocomposite was confirmed by degrading Congo red dye at a concentration of 10 ppm in 65 min. Following first-order rate kinetics, the synthesized nanocomposite demonstrated a high degradation efficiency of 73.7 %. A half-life time of 37.02 min was also measured, demonstrating efficient photocatalytic action. The reusability of the catalyst was evaluated, and it demonstrated sustained stability across six repetitions with constant catalytic amounts. Furthermore, the antioxidant activity of the nanocomposite was tested, indicating significant efficacy in depleting DPPH (2, 2-diphenylpicrylhydrazyl) radicals. With an IC50 value of 299.102 mg/mL, a significant reduction of roughly 97.81% was achieved. |
| first_indexed | 2024-03-07T16:53:28Z |
| format | Article |
| id | doaj.art-da3ac3409b4649929cd989a96f31b3df |
| institution | Directory Open Access Journal |
| issn | 2666-8459 |
| language | English |
| last_indexed | 2024-04-25T00:04:11Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Surfaces and Interfaces |
| spelling | doaj.art-da3ac3409b4649929cd989a96f31b3df2024-03-14T06:16:46ZengElsevierResults in Surfaces and Interfaces2666-84592024-02-0114100202Reduced graphene oxide loaded La2O3 nanocomposite for dye degradation and antioxidant studiesMylarappa Mylarappa0Chandruvasan Selvam1Harisha K. Sanjeevappa2Prasanna Kumar S G3Krishnamurthy G4Kalasad Muttanagoud N5Department of Studies in Chemistry, Bangalore University, Bengaluru 560056, Karnataka, India; Corresponding author.Department of Chemistry, KLE Society's S Nijalingappa College, Rajajinagar, Bengaluru 560009, IndiaDepartment of Studies in Physics, Bangalore University, Bengaluru 560056, Karnataka, IndiaDepartment of Chemistry, MS Ramaiah College of Arts, Science and Commerce, Bengaluru 560054, Karnataka, IndiaDepartment of Studies in Chemistry, Bangalore University, Bengaluru 560056, Karnataka, IndiaDepartment of Studies in Physics, Davangere University, Karnataka 577002, IndiaThe current research describes the synthesis and characterization of reduced graphene (rGO) doped with lanthanum oxide (La2O3/rGO). The nanocomposite was created using a simple reflux technique. To analyze the structure and characteristics of the synthesized nanoparticles, characterization techniques such as XRD, SEM, EDAX, FT-IR, BET, Raman, and UV studies were used. The photocatalytic capability of the La2O3/rGO nanocomposite was confirmed by degrading Congo red dye at a concentration of 10 ppm in 65 min. Following first-order rate kinetics, the synthesized nanocomposite demonstrated a high degradation efficiency of 73.7 %. A half-life time of 37.02 min was also measured, demonstrating efficient photocatalytic action. The reusability of the catalyst was evaluated, and it demonstrated sustained stability across six repetitions with constant catalytic amounts. Furthermore, the antioxidant activity of the nanocomposite was tested, indicating significant efficacy in depleting DPPH (2, 2-diphenylpicrylhydrazyl) radicals. With an IC50 value of 299.102 mg/mL, a significant reduction of roughly 97.81% was achieved.http://www.sciencedirect.com/science/article/pii/S2666845924000229La2O3/rGO nanocompositeCongo redPhotocatalysisAntioxidant studies |
| spellingShingle | Mylarappa Mylarappa Chandruvasan Selvam Harisha K. Sanjeevappa Prasanna Kumar S G Krishnamurthy G Kalasad Muttanagoud N Reduced graphene oxide loaded La2O3 nanocomposite for dye degradation and antioxidant studies Results in Surfaces and Interfaces La2O3/rGO nanocomposite Congo red Photocatalysis Antioxidant studies |
| title | Reduced graphene oxide loaded La2O3 nanocomposite for dye degradation and antioxidant studies |
| title_full | Reduced graphene oxide loaded La2O3 nanocomposite for dye degradation and antioxidant studies |
| title_fullStr | Reduced graphene oxide loaded La2O3 nanocomposite for dye degradation and antioxidant studies |
| title_full_unstemmed | Reduced graphene oxide loaded La2O3 nanocomposite for dye degradation and antioxidant studies |
| title_short | Reduced graphene oxide loaded La2O3 nanocomposite for dye degradation and antioxidant studies |
| title_sort | reduced graphene oxide loaded la2o3 nanocomposite for dye degradation and antioxidant studies |
| topic | La2O3/rGO nanocomposite Congo red Photocatalysis Antioxidant studies |
| url | http://www.sciencedirect.com/science/article/pii/S2666845924000229 |
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