Phytogenic Synthesis of Pd-Ag/rGO Nanostructures Using Stevia Leaf Extract for Photocatalytic H<sub>2</sub> Production and Antibacterial Studies
Continuously increasing energy demand and growing concern about energy resources has attracted much research in the field of clean and sustainable energy sources. In this context, zero-emission fuels are required for energy production to reduce the usage of fossil fuel resources. Here, we present th...
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MDPI AG
2021-01-01
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| Series: | Biomolecules |
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| Online Access: | https://www.mdpi.com/2218-273X/11/2/190 |
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doaj-f3809a506bdc406b9c6a76fcd1f208382021-01-30T00:05:03ZengMDPI AGBiomolecules2218-273X2021-01-011119019010.3390/biom11020190Phytogenic Synthesis of Pd-Ag/rGO Nanostructures Using Stevia Leaf Extract for Photocatalytic H<sub>2</sub> Production and Antibacterial StudiesKoduru Mallikarjuna0Omaima Nasif1Sulaiman Ali Alharbi2Suresh V. Chinni3Lebaka Veeranjaneya Reddy4Minnam Reddy Vasudeva Reddy5Subramaniam Sreeramanan6Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City 758307, VietnamDepartment of Physiology, College of Medicine, King Saud University, Medical City, King Khalid University Hospital, P.O. Box 2925, Riyadh 11461, Saudi ArabiaDepartment of Botany and Microbiology, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi ArabiaDepartment of Biotechnology, Faculty of Applied Sciences, AIMST University, Bedong 08100, MalaysiaDepartment of Microbiology, Yogi Vemana University, Kadapa, Andhra Pradesh 516005, IndiaSchool of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan-si 38541, Gyeongsangbuk-do, KoreaSchool of Biological Sciences, University Sains Malaysia, Minden Heights 11800, MalaysiaContinuously increasing energy demand and growing concern about energy resources has attracted much research in the field of clean and sustainable energy sources. In this context, zero-emission fuels are required for energy production to reduce the usage of fossil fuel resources. Here, we present the synthesis of Pd-Ag-decorated reduced graphene oxide (rGO) nanostructures using a green chemical approach with stevia extract for hydrogen production and antibacterial studies under light irradiation. Moreover, bimetallic nanostructures are potentially lime lighted due to their synergetic effect in both scientific and technical aspects. Structural characteristics such as crystal structure and morphological features of the synthesized nanostructures were analyzed using X-ray diffraction and transmission electron microscopy. Analysis of elemental composition and oxidation states was carried out by X-ray photoelectron spectroscopy. Optical characteristics of the biosynthesized nanostructures were obtained by UV-Vis absorption spectroscopy, and Fourier transform infrared spectroscopy was used to investigate possible functional groups that act as reducing and capping agents. The antimicrobial activity of the biosynthesized Pd-Ag-decorated rGO nanostructures was excellent, inactivating 96% of <i>Escherichia coli</i> cells during experiments over 150 min under visible light irradiation. Hence, these biosynthesized Pd-Ag-decorated rGO nanostructures can be utilized for alternative nanomaterial-based drug development in the future.https://www.mdpi.com/2218-273X/11/2/190stevia extractgreen synthesisPd-Ag/rGOH<sub>2</sub> productionantimicrobial activityphotocatalysis |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Koduru Mallikarjuna Omaima Nasif Sulaiman Ali Alharbi Suresh V. Chinni Lebaka Veeranjaneya Reddy Minnam Reddy Vasudeva Reddy Subramaniam Sreeramanan |
| spellingShingle |
Koduru Mallikarjuna Omaima Nasif Sulaiman Ali Alharbi Suresh V. Chinni Lebaka Veeranjaneya Reddy Minnam Reddy Vasudeva Reddy Subramaniam Sreeramanan Phytogenic Synthesis of Pd-Ag/rGO Nanostructures Using Stevia Leaf Extract for Photocatalytic H<sub>2</sub> Production and Antibacterial Studies Biomolecules stevia extract green synthesis Pd-Ag/rGO H<sub>2</sub> production antimicrobial activity photocatalysis |
| author_facet |
Koduru Mallikarjuna Omaima Nasif Sulaiman Ali Alharbi Suresh V. Chinni Lebaka Veeranjaneya Reddy Minnam Reddy Vasudeva Reddy Subramaniam Sreeramanan |
| author_sort |
Koduru Mallikarjuna |
| title |
Phytogenic Synthesis of Pd-Ag/rGO Nanostructures Using Stevia Leaf Extract for Photocatalytic H<sub>2</sub> Production and Antibacterial Studies |
| title_short |
Phytogenic Synthesis of Pd-Ag/rGO Nanostructures Using Stevia Leaf Extract for Photocatalytic H<sub>2</sub> Production and Antibacterial Studies |
| title_full |
Phytogenic Synthesis of Pd-Ag/rGO Nanostructures Using Stevia Leaf Extract for Photocatalytic H<sub>2</sub> Production and Antibacterial Studies |
| title_fullStr |
Phytogenic Synthesis of Pd-Ag/rGO Nanostructures Using Stevia Leaf Extract for Photocatalytic H<sub>2</sub> Production and Antibacterial Studies |
| title_full_unstemmed |
Phytogenic Synthesis of Pd-Ag/rGO Nanostructures Using Stevia Leaf Extract for Photocatalytic H<sub>2</sub> Production and Antibacterial Studies |
| title_sort |
phytogenic synthesis of pd-ag/rgo nanostructures using stevia leaf extract for photocatalytic h<sub>2</sub> production and antibacterial studies |
| publisher |
MDPI AG |
| series |
Biomolecules |
| issn |
2218-273X |
| publishDate |
2021-01-01 |
| description |
Continuously increasing energy demand and growing concern about energy resources has attracted much research in the field of clean and sustainable energy sources. In this context, zero-emission fuels are required for energy production to reduce the usage of fossil fuel resources. Here, we present the synthesis of Pd-Ag-decorated reduced graphene oxide (rGO) nanostructures using a green chemical approach with stevia extract for hydrogen production and antibacterial studies under light irradiation. Moreover, bimetallic nanostructures are potentially lime lighted due to their synergetic effect in both scientific and technical aspects. Structural characteristics such as crystal structure and morphological features of the synthesized nanostructures were analyzed using X-ray diffraction and transmission electron microscopy. Analysis of elemental composition and oxidation states was carried out by X-ray photoelectron spectroscopy. Optical characteristics of the biosynthesized nanostructures were obtained by UV-Vis absorption spectroscopy, and Fourier transform infrared spectroscopy was used to investigate possible functional groups that act as reducing and capping agents. The antimicrobial activity of the biosynthesized Pd-Ag-decorated rGO nanostructures was excellent, inactivating 96% of <i>Escherichia coli</i> cells during experiments over 150 min under visible light irradiation. Hence, these biosynthesized Pd-Ag-decorated rGO nanostructures can be utilized for alternative nanomaterial-based drug development in the future. |
| topic |
stevia extract green synthesis Pd-Ag/rGO H<sub>2</sub> production antimicrobial activity photocatalysis |
| url |
https://www.mdpi.com/2218-273X/11/2/190 |
| work_keys_str_mv |
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