Development of Nanocomposite Membranes with Photocatalytic Surfaces

Gehrke, Ilka; Keuter,; Gross, F.

doi:10.1166/jnn.2012.6740

Cited by 14 publications

(4 citation statements)

References 5 publications

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“…Gehrke et al 38 deposited photocatalytic TiO 2 nanoparticles (P25, Evonik) on a metallic filter material (microsieve) by a dip coating process. The fouling repellent and photocatalytic nanocoatings degrade the water impurities close to the microsieve surface before a dense cake layer is formed.…”

Section: State Of Science and Technology: Nanobased Materials Procesmentioning

confidence: 99%

“…For example, Gehrke et al 38 deposited photocatalytic TiO 2 nanoparticles alone or in combination with bactericidal silver on the surface of metallic filters. They used dip coating as well as chemical and physical vapor deposition for producing photocatalytic thin coatings with a maximum thickness of 500 nm.…”

Section: State Of Science and Technology: Nanobased Materials Procesmentioning

confidence: 99%

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Innovations in nanotechnology for water treatment

Gehrke¹,

Geiser²,

Somborn-Schulz³

2015

NSA

461

144

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Important challenges in the global water situation, mainly resulting from worldwide population growth and climate change, require novel innovative water technologies in order to ensure a supply of drinking water and reduce global water pollution. Against this background, the adaptation of highly advanced nanotechnology to traditional process engineering offers new opportunities in technological developments for advanced water and wastewater technology processes. Here, an overview of recent advances in nanotechnologies for water and wastewater treatment processes is provided, including nanobased materials, such as nanoadsorbents, nanometals, nanomembranes, and photocatalysts. The beneficial properties of these materials as well as technical barriers when compared with conventional processes are reported. The state of commercialization is presented and an outlook on further research opportunities is given for each type of nanobased material and process. In addition to the promising technological enhancements, the limitations of nanotechnology for water applications, such as laws and regulations as well as potential health risks, are summarized. The legal framework according to nanoengineered materials and processes that are used for water and wastewater treatment is considered for European countries and for the USA.

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Section: State Of Science and Technology: Nanobased Materials Procesmentioning

confidence: 99%

Section: State Of Science and Technology: Nanobased Materials Procesmentioning

confidence: 99%

Innovations in nanotechnology for water treatment

Gehrke¹,

Geiser²,

Somborn-Schulz³

2015

NSA

461

144

View full text Add to dashboard Cite

show abstract

“…TiO2 nanoparticles and silver-coated www.jchr.org JCHR (2023) 13( 5), 473-490 | ISSN:2251-6727 antibacterial filters are promising options. Exposure to UV radiation activates electron-hole pairs, enhancing the biodegradability of decomposable materials [107,121,122].…”

Section: Photo Catalysismentioning

confidence: 99%

“Nanotechnology in Environmental Applications: Nanoparticles Synthesis for Water Pollution and Wastewater Treatment”

Chandrakar,

sahu,

Sahu

et al. 2023

jchr

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Global population growth is causing an increase in energy and the material consumption, which has an impact on the environment. Increased generation of solid waste, increased air pollution from cars and factories, and contamination of surface and groundwater are a few of these effects. The integration over the previous 20 year has changed of materials with artificial nano-scales. The nanotechnology market environmental applications are growing quickly rising, demonstrating the significance of such developments in both research and practices. By manipulating the shape and size of the materials at the nanoscale, nanotechnology is an emerging technology that can help combat pollution. Through the direct use of Nanomaterials for the detection, prevention and removal of pollutants as well as through the use of superior industrial design techniques and the creation of environmentally friendly goods, nanotechnology has the potential to improve the environment. Because of their small size and high surface area, nanoparticles exhibit increased reactivity. Although this trait has a variety of advantages and uses. This review provided comprehensive details on the use of nanotechnology in pollution control, including source reduction or pollution prevention, remediation or degradation of pollutants. Examined how to synthesized nanoparticles and nanotechnology is used in control and reduction of water pollution.

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“…Gehrke et al [131] recently used a dip-coating process to deposit photocatalytic TiO 2 nanoparticles (P25, Evonik) on a metallic filter material (micro-sieve). The fouling repellent and photocatalytic nanocoatings degraded the water impurities close to the micro-sieve surface before a dense cake layer was formed.…”

Section: Recent Progress In Mixed-matrix Nanomembranesmentioning

confidence: 99%