A comprehensive review on the environmental applications of graphene-carbon nanotube hybrids: recent progress, challenges and prospects
Environmental pollution by water-soluble pollutants, heavy metal ions and harmful greenhouse gases is triggering significant concern worldwide and is affecting the stability of the environment. Hence, it is indispensable to develop novel materials to mitigate environmental pollution. Graphene/carbon...
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| Published in: | Materials advances Vol. 2; no. 21; pp. 6816 - 6838 |
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| Main Authors: | , |
| Format: | Journal Article |
| Language: | English |
| Published: |
01-11-2021
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| Online Access: | Get full text |
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| Summary: | Environmental pollution by water-soluble pollutants, heavy metal ions and harmful greenhouse gases is triggering significant concern worldwide and is affecting the stability of the environment. Hence, it is indispensable to develop novel materials to mitigate environmental pollution. Graphene/carbon nanotube hybrid materials exhibit exceptional potential for environmental applications including sensing and monitoring of contaminants and their remediation. These 3D network materials possess a larger surface area, enhanced electrical conductivity, thermal conductivity, porosity, minimal agglomeration and higher mechanical strength compared to their building blocks,
i.e.
, 1D carbon nanotubes (CNTs) and 2D graphene. Moreover, the porosity and extremely interconnected structures of these hybrid materials yield an accessible interior surface area, efficient mass transport,
etc.
These outstanding properties combined with the hydrophobicity, stability and conductivity of these materials provide a general platform for the detection and disposal of various pollutants. This review presents the promising environmental applications of 3D graphene/CNT hybrid materials with special focus on the synergistic effects arising from the combination of graphene and CNT. Most of the relevant literature related to the removal of oils and organic solvents, adsorption of dyes, removal of heavy metal ions, gas sensors and the catalytic conversion of pollutants is reviewed to shed light on the current challenges and upcoming opportunities.
This review is focused on the environmental applications of 3D graphene-carbon nanotube hybrid materials including sensing and monitoring of contaminants and also their remediation. |
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| Bibliography: | Jomol P. John began her academic career in 2013 in the Collegiate Education Department and is presently working as an Assistant Professor in Govt. Polytechnic College Perumbavoor, Ernakulam, Kerala, India. She is passionate to learn about the applications of hybrid nanomaterials and is currently doing research in this area under the guidance of Dr Bindu Sharmila T. K., Associate Professor of Chemistry, Maharaja's College Ernakulam. She has more than eight years of experience in academia and research. Her research interests include materials science, nanotechnology and applications of polymer nanocomposites. Dr Bindu Sharmila T. K. is a Doctoral Degree holder in Chemistry who is enthusiastic in the research of hybrid nanomaterials. She has more than fifteen years of experience in academia and research. She has published papers in refereed international journals of repute. Her research interests include polymer nanocomposites, nanotechnology and materials science. She is a recognized research guide in Chemistry of Mahatma Gandhi University and presented many research papers in international and national conferences. She started her academic career in 2006 at Collegiate Education and has been working as an Associate Professor in the Department of Chemistry, Maharaja's College Ernakulam since 2015. Dr Mary Nancy T. E. is currently working as an Assistant Professor in the PG & Research Department of Chemistry, Fatima Mata National College (Autonomous), Kollam, Kerala, India. Her research interests include the synthesis of graphene-based nanocomposites and their use in electrochemical applications, mainly as biosensors. |
| ISSN: | 2633-5409 2633-5409 |
| DOI: | 10.1039/d1ma00324k |