Recent Advances in the Adsorption of Different Pollutants from Wastewater Using Carbon-Based and Metal-Oxide Nanoparticles
Source abstract
Abstract
In recent years, nanomaterials have gained special attention for removing contaminants from wastewater. Nanoparticles (NPs), such as carbon-based materials and metal oxides, exhibit exceptional adsorption capacity and antimicrobial properties for wastewater treatment. Their unique properties, including reactivity, high surface area, and tunable surface functionalities, make them highly effective adsorbents. They can remove contaminants such as organics, inorganics, pharmaceuticals, medicine, and dyes by adsorption mechanisms. In this review, the effectiveness of different types of carbon-based NPs, including carbon nanotubes (CNTs), graphene-based nanoparticles (GNPs), carbon quantum dots (CQDs), carbon nanofibers (CNFs), and carbon nanospheres (CNSs), and metal oxides, including copper oxide (CuO), zinc oxide (ZnO), iron oxide (Fe2O3), titanium oxide (TiO2), and silver oxide (Ag2O), in the removal of different contaminants from wastewater has been comprehensively evaluated. In addition, their synthesis methods, such as physical, chemical, and biological, have been described. Based on the findings, CNPs can remove 75 to 90% of pollutants within two hours, while MONPs can remove 60% to 99% of dye in 150 min, except iron oxide NPs. For future studies, the integration of NPs into existing treatment systems and the development of novel nanomaterials are recommended. Hence, the potential of NPs is promising, but challenges related to their environmental impact and their toxicity must be considered.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Carbon Nanotubes in Composites · Graphene research and applications · Graphene and Nanomaterials Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Environment and Energy, Sejong University, Seoul 05006, Republic of Korea
Aurecon Group, 110 Carlton Gore Road, Newmarket, Auckland 1023, New Zealand
Faculty of Engineering and Applied Sciences, Cranfield University, Bedford MK43 0AL, UK
School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ 85287-3005, USA
Department of Biomaterials, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Chennai 600077, India
The KU-KIST Graduate School of Energy and Environment, Korea University, 145 Anam-ro, Seongbuk-Gu, Seoul 02841, Republic of Korea
Department of Civil and Environmental Engineering, Seoul National University, Seoul 151-744, Republic of Korea
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