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The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of the world's largest and most accessible agricultural information collections and serves as the nexus for a national network of state land-grant and U.S. Department of Agriculture field libraries. In fiscal year 2011 (Oct 2010 through Sept 2011) NAL delivered more than 100 million direct customer service transactions.

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Journal Article

Journal Article

Review on heavy metal adsorption processes by carbon nanotubes  [2019]

Fiyadh, Seef Saadi; AlSaadi, Mohammed Abdulhakim; Jaafar, Wan Zurina; AlOmar, Mohamed Khalid; et al.

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The most important and indispensable substance for life on earth is water. Regrettably, the growths of civilization, population, and industrssialization have led to a steady deterioration in the quality of available water resources. Heavy metals are a particular problem because of their high toxicity. This work highlights up-to-date methods for the removal of heavy metals from water using the technique of adsorption. After a comprehensive review of the range of materials used as adsorbents to remove heavy metals, the paper focuses on one particular technique, involving carbon nanotubes (CNTs). Tests have confirmed that CNTs are highly efficient, but have also revealed some drawbacks. Further adjustments and refinements are therefore required to improve their ability to remove heavy metals. This study shows that using deep eutectic solvents (DESs) as a functionalization agent to replace ionic liquids (ILs) has a number of advantages, including lower costs, easier availability of materials and environmentally friendliness. In sum, it suggests that the most efficient adsorption process is to use functionalized CNTs with DESs as an adsorbent. The critical analysis and conclusions emerging from this study should be of benefit to engineers, environmental scientists and chemists interested in the use of carbon nanotubes for use in environmental remediation.
From the journal
Journal of cleaner production
ISSN : 0959-6526

Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2019
Volume:
230
Issue:
4-5
Extent:
783-793
Publisher:
Elsevier Ltd
All titles:
"Review on heavy metal adsorption processes by carbon nanotubes"@eng
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Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2019
Volume:
230
Issue:
4-5
Extent:
783-793
Publisher:
Elsevier Ltd
All titles:
"Review on heavy metal adsorption processes by carbon nanotubes"@eng