Journal
CHEMOSPHERE
Volume 293, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2022.133587
Keywords
Activated carbon; Carbon nanotubes; Graphene oxide; Boron removal; Risk assessment
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Funding
- Gebze Technical University
- University of Tabriz
- National Research Foundation of Korea (NRF) - Republic of Korea government (MSIT) [NRF-2020R1F1A1076312]
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This paper extensively reviews the use of carbon-based materials, such as activated carbon, graphene oxide, and carbon nanotubes, for boron removal. It discusses the effects of operating conditions, kinetics, isotherm models, and removal methods. The study explores the impact of modifying the lifetime of carbon-based materials and concludes that modified materials have significantly higher boron adsorption capability. The addition of elements like tartaric acid improves the surface area, functional groups, and pore volume of carbon-based materials. Furthermore, the paper evaluates the health risks posed by boron in treated water and assesses the effectiveness of carbon-based materials for boron removal, along with future perspectives and research gaps.
Carbon-based compounds have gained attention of researchers for use in boron removal due to their properties, which make them a viable and low cost adsorbent with a high availability, as well as environmental friendliness and high removal efficiency. The removal of boron utilizing carbon-based materials, including activated carbon (AC), graphene oxide (GO), and carbon nanotubes (CNTs), is extensively reviewed in this paper. The effects of the operating conditions, kinetics, isotherm models, and removal methods are also elaborated. The impact of the modification of the lifetime of carbon-based materials has also been explored. Compared to unmodified carbonbased materials, modified materials have a significantly higher boron adsorption capability. It has been observed that adding various elements to carbon-based materials improves their surface area, functional groups, and pore volume. Tartaric acid, one of these doped elements, has been employed to successfully improve the boron removal and adsorption capabilities of materials. An assessment of the health risk posed to humans by boron in treated water utilizing carbon-based materials was performed to better understand the performance of materials in real-world applications. Furthermore, the boron removal effectiveness of carbon-based materials was evaluated, as well as any shortcomings, future perspectives, and gaps in the literature.
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