Graphene-based materials for photocatalytic and environmental sensing applications
Graphene Quantum Dots (GQDs) have emerged as promising materials, finding extensive applications in environmental fields such as catalysis, sensors, green fuels, and energy storage. GQDs, a minute segment of graphene smaller than 20 nm in dimension, exhibit electron mobility confinement in all 3D be...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-09-01
|
| Series: | Results in Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123025017967 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849685816495833088 |
|---|---|
| author | Sujatha Sadana Natarajan Rajamohan Rajasimman Manivasagan Nitin Raut Santhosh Paramasivam Gianluca Gatto Amit Kumar |
| author_facet | Sujatha Sadana Natarajan Rajamohan Rajasimman Manivasagan Nitin Raut Santhosh Paramasivam Gianluca Gatto Amit Kumar |
| author_sort | Sujatha Sadana |
| collection | DOAJ |
| description | Graphene Quantum Dots (GQDs) have emerged as promising materials, finding extensive applications in environmental fields such as catalysis, sensors, green fuels, and energy storage. GQDs, a minute segment of graphene smaller than 20 nm in dimension, exhibit electron mobility confinement in all 3D because of their incredible chemical, special structure, electrical, intrinsic, and optical properties. Methods of synthesizing GQDs, including top-down and bottom-up approaches, with a particular emphasis on green synthesis, are discussed. In addition, the review discusses diverse modification strategies aimed at improving the photoluminescence, electrical conductivity, chemical Graphene Quantum Dots (GQDs) have emerged as promising materials, finding extensive applications in environmental fields such as catalysis, sensors, green fuels, and energy storage. GQDs, a minute segment of graphene smaller than 20 nm in dimension, exhibit electron mobility confinement in all 3D because of their incredible chemical, special structure, electrical, intrinsic, and optical properties. Methods of synthesizing GQDs, including top-down and bottom-up approaches, with a particular emphasis on green synthesis, are discussed. In addition, the review discusses diverse modification strategies aimed at improving the photoluminescence, electrical conductivity, chemical and thermal stability, biocompatibility, catalytic performance, and sensing capabilities of graphene quantum dots, thereby enabling their application in bioimaging, sensors, and specific electronic devices. In addition, the review explores the wide-ranging applications of graphene quantum dots, including their roles in sensors, biomedical imaging, drug delivery systems, solar energy conversion, supercapacitors, and battery technologies. The novelty of this review lies in outlining the core principles of photocatalysis with a focus on its applications in environmental remediation, hydrogen evolution and CO₂ conversion. Even though future investigation of GQDs is immense, it is still facing some difficulties in developing as an environmentally friendly process and hence, some significant innovations are required to overcome these difficulties and thermal stability, biocompatibility, catalytic performance, and sensing capabilities of graphene quantum dots, thereby enabling their application in bioimaging, sensors, and specific electronic devices. In addition, the review explores the wide-ranging applications of graphene quantum dots, including their roles in sensors, biomedical imaging, drug delivery systems, solar energy conversion, supercapacitors, and battery technologies. The novelty of this review lies in outlining the core principles of photocatalysis with a focus on its applications in environmental remediation, hydrogen evolution and CO₂ conversion. Even though future investigation of GQDs is immense, it is still facing some difficulties in developing as an environmentally friendly process and hence, some significant innovations are required to overcome these difficulties. |
| format | Article |
| id | doaj-art-4d0ed9015ce14a66a3488cea36645d33 |
| institution | DOAJ |
| issn | 2590-1230 |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj-art-4d0ed9015ce14a66a3488cea36645d332025-08-20T03:22:58ZengElsevierResults in Engineering2590-12302025-09-012710572510.1016/j.rineng.2025.105725Graphene-based materials for photocatalytic and environmental sensing applicationsSujatha Sadana0Natarajan Rajamohan1Rajasimman Manivasagan2Nitin Raut3Santhosh Paramasivam4Gianluca Gatto5Amit Kumar6Department of Chemical Engineering, St.Joseph’s College of Engineering, Chennai, IndiaChemical Engineering Section, Faculty of Engineering, Sohar University, Sohar PC-311, Oman; Corresponding authors.Department of Chemical Engineering, Annamalai University, Annamalai Nagar, Chidambaram, IndiaChemical Engineering Section, Faculty of Engineering, Sohar University, Sohar PC-311, OmanDepartment of Electrical and Electronic Engineering, University of Cagliari, Italy; Corresponding authors.Department of Electrical and Electronic Engineering, University of Cagliari, ItalyDepartment of Electrical and Electronic Engineering, University of Cagliari, ItalyGraphene Quantum Dots (GQDs) have emerged as promising materials, finding extensive applications in environmental fields such as catalysis, sensors, green fuels, and energy storage. GQDs, a minute segment of graphene smaller than 20 nm in dimension, exhibit electron mobility confinement in all 3D because of their incredible chemical, special structure, electrical, intrinsic, and optical properties. Methods of synthesizing GQDs, including top-down and bottom-up approaches, with a particular emphasis on green synthesis, are discussed. In addition, the review discusses diverse modification strategies aimed at improving the photoluminescence, electrical conductivity, chemical Graphene Quantum Dots (GQDs) have emerged as promising materials, finding extensive applications in environmental fields such as catalysis, sensors, green fuels, and energy storage. GQDs, a minute segment of graphene smaller than 20 nm in dimension, exhibit electron mobility confinement in all 3D because of their incredible chemical, special structure, electrical, intrinsic, and optical properties. Methods of synthesizing GQDs, including top-down and bottom-up approaches, with a particular emphasis on green synthesis, are discussed. In addition, the review discusses diverse modification strategies aimed at improving the photoluminescence, electrical conductivity, chemical and thermal stability, biocompatibility, catalytic performance, and sensing capabilities of graphene quantum dots, thereby enabling their application in bioimaging, sensors, and specific electronic devices. In addition, the review explores the wide-ranging applications of graphene quantum dots, including their roles in sensors, biomedical imaging, drug delivery systems, solar energy conversion, supercapacitors, and battery technologies. The novelty of this review lies in outlining the core principles of photocatalysis with a focus on its applications in environmental remediation, hydrogen evolution and CO₂ conversion. Even though future investigation of GQDs is immense, it is still facing some difficulties in developing as an environmentally friendly process and hence, some significant innovations are required to overcome these difficulties and thermal stability, biocompatibility, catalytic performance, and sensing capabilities of graphene quantum dots, thereby enabling their application in bioimaging, sensors, and specific electronic devices. In addition, the review explores the wide-ranging applications of graphene quantum dots, including their roles in sensors, biomedical imaging, drug delivery systems, solar energy conversion, supercapacitors, and battery technologies. The novelty of this review lies in outlining the core principles of photocatalysis with a focus on its applications in environmental remediation, hydrogen evolution and CO₂ conversion. Even though future investigation of GQDs is immense, it is still facing some difficulties in developing as an environmentally friendly process and hence, some significant innovations are required to overcome these difficulties.http://www.sciencedirect.com/science/article/pii/S2590123025017967Green synthesisNano-biosensorsPhotocatalysisRenewable energy conversionSustainable energy storage |
| spellingShingle | Sujatha Sadana Natarajan Rajamohan Rajasimman Manivasagan Nitin Raut Santhosh Paramasivam Gianluca Gatto Amit Kumar Graphene-based materials for photocatalytic and environmental sensing applications Results in Engineering Green synthesis Nano-biosensors Photocatalysis Renewable energy conversion Sustainable energy storage |
| title | Graphene-based materials for photocatalytic and environmental sensing applications |
| title_full | Graphene-based materials for photocatalytic and environmental sensing applications |
| title_fullStr | Graphene-based materials for photocatalytic and environmental sensing applications |
| title_full_unstemmed | Graphene-based materials for photocatalytic and environmental sensing applications |
| title_short | Graphene-based materials for photocatalytic and environmental sensing applications |
| title_sort | graphene based materials for photocatalytic and environmental sensing applications |
| topic | Green synthesis Nano-biosensors Photocatalysis Renewable energy conversion Sustainable energy storage |
| url | http://www.sciencedirect.com/science/article/pii/S2590123025017967 |
| work_keys_str_mv | AT sujathasadana graphenebasedmaterialsforphotocatalyticandenvironmentalsensingapplications AT natarajanrajamohan graphenebasedmaterialsforphotocatalyticandenvironmentalsensingapplications AT rajasimmanmanivasagan graphenebasedmaterialsforphotocatalyticandenvironmentalsensingapplications AT nitinraut graphenebasedmaterialsforphotocatalyticandenvironmentalsensingapplications AT santhoshparamasivam graphenebasedmaterialsforphotocatalyticandenvironmentalsensingapplications AT gianlucagatto graphenebasedmaterialsforphotocatalyticandenvironmentalsensingapplications AT amitkumar graphenebasedmaterialsforphotocatalyticandenvironmentalsensingapplications |