Use of Carbon Nanotubes in Water Treatment

Upadhyayula, Venkata K.K.; Ruparelia, Jayesh; Agrawal, Abinash

doi:10.1002/9781118114063.ch11

Cited by 5 publications

(3 citation statements)

References 146 publications

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“…Therefore, much effort has been focused on developing new materials, more effective in removing contaminants from fresh water as well as seawater. Carbon nanotubes (CNTs), owing to their large specific area and high mechanical and chemical properties, are considered excellent candidates for wastewater cleanup [3,4]. The main drawbacks of using CNT powders in water treatment are the difficulties in handling and retrieving them through further filtration after the contaminant absorption.…”

Section: Introductionmentioning

confidence: 99%

A three-dimensional carbon nanotube network for water treatment

Camilli¹,

Pisani²,

Gautron³

et al. 2014

Nanotechnology

139

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The bulk synthesis of freestanding carbon nanotube (CNT) frameworks is developed through a sulfur-addition strategy during an ambient-pressure chemical vapour deposition process, with ferrocene used as the catalyst precursor. This approach enhances the CNTs' length and contorted morphology, which are the key features leading to the formation of the synthesized porous networks. We demonstrate that such a three-dimensional structure selectively uptakes from water a mass of toxic organic solvent (i.e. o-dichlorobenzene) about 3.5 times higher than that absorbed by individual CNTs. In addition, owing to the presence of highly defective nanostructures constituting them, our samples exhibit an oil-absorption capacity higher than that reported in the literature for similar CNT sponges.

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Section: Introductionmentioning

confidence: 99%

A three-dimensional carbon nanotube network for water treatment

Camilli¹,

Pisani²,

Gautron³

et al. 2014

Nanotechnology

139

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show abstract

“…Membrane damage, ROS activation, suppressed metabolic activity oxidative stress, extraction of phospholipids, and DNA/RNA release are considered the main mechanisms for insight into CNTs' antibacterial activity [18]. Functionalized CNTs with strong oxidizing groups will significantly improve their aqueous dispersivity for biotechnological applications [18,115]. Aggregation and dispersivity properties might be considered.…”

Section: Effect Of Cnts Preparation Methods On Their Antimicrobial Ac...mentioning

confidence: 99%

Anti-Infective and Toxicity Properties of Carbon Based Materials: Graphene and Functionalized Carbon Nanotubes

Hadidi¹,

Mohebbi²

2022

Microorganisms

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Recently, antimicrobial activities of various carbon-based nanomaterials against specific pathogens have become one of the most significant research interests in this field. Carbon nanotubes (CNTs) are promising multidisciplinary nanostructures in biomedicine, drug delivery, genetic engineering, biosensors, and artificial implants. However, the biomedical administration of CNTs is dependent on their solubility, toxicity, and biocompatibility, as well as novel drug-delivery applications through optimization of the drug’s loading capacity, cellular absorption, and continuous release within the target cell. The usage of CNTs and Graphene materials as antimicrobial agents and nanocarriers for antibiotics delivery would possibly improve their bioavailability and facilitate better anti-infective therapy. However, it is worth mentioning that CNTs’ antimicrobial activity and toxicity are highly dependent on their preparation and synthesis method. Various types of research have confirmed that diameter, length, residual catalyst, metal content, surface coating, electronic structure, and dispersibility would affect CNTs’ toxicity toward bacteria and human cells. In this review article, a general study was performed on the antimicrobial properties of carbon-based nanomaterials, as well as their toxicity and applications in confronting different microorganisms. This study could be useful for researchers who are looking for new and effective drug delivery methods in the field of microbial resistance.

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“…24 Carbon-based materials such as activated carbon and carbon nanotubes have been used for water purica-tion. 25,26 The large scale production of functionalized graphene at low cost should result in good adsorbents for water purication. This is due to the two-dimensional layer structure, large surface area, pore volume and presence of surface functional groups in these materials.…”

Section: Water Remediation By Adsorptionmentioning

confidence: 99%

Environmental applications using graphene composites: water remediation and gas adsorption

et al. 2013

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This review deals with wide-ranging environmental studies of graphene-based materials on the adsorption of hazardous materials and photocatalytic degradation of pollutants for water remediation and the physisorption, chemisorption, reactive adsorption, and separation for gas storage. The environmental and biological toxicity of graphene, which is an important issue if graphene composites are to be applied in environmental remediation, is also addressed.

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Use of Carbon Nanotubes in Water Treatment

Cited by 5 publications

References 146 publications

A three-dimensional carbon nanotube network for water treatment

A three-dimensional carbon nanotube network for water treatment

Anti-Infective and Toxicity Properties of Carbon Based Materials: Graphene and Functionalized Carbon Nanotubes

Environmental applications using graphene composites: water remediation and gas adsorption

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