Nanotechnology and the challenge of clean water

Hillie, Thembela; Hlophe, Mbhuti

doi:10.1038/nnano.2007.350

Cited by 205 publications

(106 citation statements)

References 1 publication

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“…The threat of pollutants and contaminants arises from different sources, including submicron and nanosized particles in polluted air which can cause respiratory problems [1]. In addition heavy metal ions, toxic chemicals and pathogens in contaminated water can also impact our daily life, as well as a variety of industries including pharmaceutical manufacturing and food production [2]. In particular heavy metal ions in wastewater, from metallurgical industries, mining and battery manufacturing, can accumulate in living tissues to toxic or carcinogenic levels.…”

Section: Introductionmentioning

confidence: 99%

A highly efficient and versatile carbon nanotube/ceramic composite filter

Parham

Bates

Xia

et al. 2013

Carbon

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Please cite this article as: Parham, H., Bates, S., Xia, Y., Zhu, Y., A highly efficient and versatile carbon nanotube/ ceramic composite filter, Carbon (2012), doi: http://dx.doi.org/10.1016/j.carbon. 2012.11.032 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. The composite filter also exhibited good reusability for these applications, owing to the excellent thermal and chemical stability of the carbon nanotubes.

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Section: Introductionmentioning

confidence: 99%

A highly efficient and versatile carbon nanotube/ceramic composite filter

Parham

Bates

Xia

et al. 2013

Carbon

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“…However, large-scale plants consume a large amount of energy and involve high operating costs associated with infrastructure and skilled labour 6 , making them difficult to be implemented in developing countries and resource-limited areas. Smaller pointof-use (POU) potable water purification devices [7][8][9] , on the other hand, can avoid many of these obstacles and are increasingly recognized as one of the appropriate approaches to meet the needs of clean water and sanitation at the household and community levels.…”

mentioning

confidence: 99%

Carbon nanotube membranes with ultrahigh specific adsorption capacity for water desalination and purification

et al. 2013

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Development of technologies for water desalination and purification is critical to meet the global challenges of insufficient water supply and inadequate sanitation, especially for pointof-use applications. Conventional desalination methods are energy and operationally intensive, whereas adsorption-based techniques are simple and easy to use for point-of-use water purification, yet their capacity to remove salts is limited. Here we report that plasma-modified ultralong carbon nanotubes exhibit ultrahigh specific adsorption capacity for salt (exceeding 400% by weight) that is two orders of magnitude higher than that found in the current stateof-the-art activated carbon-based water treatment systems. We exploit this adsorption capacity in ultralong carbon nanotube-based membranes that can remove salt, as well as organic and metal contaminants. These ultralong carbon nanotube-based membranes may lead to next-generation rechargeable, point-of-use potable water purification appliances with superior desalination, disinfection and filtration properties.

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“…Although CNT-based nanofilters can be used to derive potable water from sea water, their performance still needs to be improved to meet water quality requirements (Hillie T, 2007).…”

Section: Carbon Nanotubes (Cnt)mentioning

confidence: 99%

A Review of Nanotechnology Application for Seawater Desalination Process. SOIJST Vol. 1 (1):155-179

Jordan¹

2018

Preprint

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As freshwater resource decreasing rapidly due to high rate of human population growth, many researchers have done studies to develop methods for producing freshwater supply. Seawater desalination is one of the method that has the credibility to be implemented. However, conventional seawater desalination processes suffer from a number of problems related to energy efficiency and cost. In spite of this, nanotechnology has been applied to the process. In this paper, we give an overview and explanations concerning the roles of nanotechnology in seawater desalination processes which consist of pretreatment, reverse osmosis (RO), and disinfection. In addition, the comparisons between conventional and nanotechnology-applied processes as related to its efficiency and effectiveness are also provided.

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Nanotechnology and the challenge of clean water

Cited by 205 publications

References 1 publication

A highly efficient and versatile carbon nanotube/ceramic composite filter

A highly efficient and versatile carbon nanotube/ceramic composite filter

Carbon nanotube membranes with ultrahigh specific adsorption capacity for water desalination and purification

A Review of Nanotechnology Application for Seawater Desalination Process. SOIJST Vol. 1 (1):155-179

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