scholarly journals Physicochemical Properties of Water Treatment Residuals Generated from Different Water Purification Plants and the Growth of Vegetables Using these Residuals as a Plant Growing Medium

2016 ◽  
Vol 61 (2) ◽  
pp. 267-272
Author(s):  
Yiping Xie ◽  
Kiyoshi Kurosawa
Keyword(s):  
Water Treatment ◽  
Physicochemical Properties ◽  
Water Purification ◽  
Water Treatment Residuals ◽  
Growing Medium

Physicochemical Properties Related to Long-Term Phosphorus Retention by Drinking-Water Treatment Residuals

2005 ◽  
Vol 39 (11) ◽  
pp. 4280-4289 ◽  
Author(s):  
Konstantinos C. Makris ◽  
Willie G. Harris ◽  
George A. O'Connor ◽  
Thomas A. Obreza ◽  
Herschel A. Elliott
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Physicochemical Properties ◽  
Drinking Water Treatment ◽  
Phosphorus Retention ◽  
Water Treatment Residuals ◽  
Drinking Water Treatment Residuals

scholarly journals Recent Achievements in Development of TiO2-Based Composite Photocatalytic Materials for Solar Driven Water Purification and Water Splitting

Materials ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1338 ◽  
Author(s):  
Klara Perović ◽  
Francis M. dela Rosa ◽  
Marin Kovačić ◽  
Hrvoje Kušić ◽  
Urška Lavrenčič Štangar ◽  
...  
Keyword(s):  
Water Treatment ◽  
Transition Metal ◽  
Photocatalytic Degradation ◽  
Water Splitting ◽  
Water Purification ◽  
Degradation Mechanism ◽  
Living Environment ◽  
Solar Irradiation ◽  
Metal Chalcogenides ◽  
Photocatalytic Water Splitting

Clean water and the increased use of renewable energy are considered to be two of the main goals in the effort to achieve a sustainable living environment. The fulfillment of these goals may include the use of solar-driven photocatalytic processes that are found to be quite effective in water purification, as well as hydrogen generation. H2 production by water splitting and photocatalytic degradation of organic pollutants in water both rely on the formation of electron/hole (e−/h+) pairs at a semiconducting material upon its excitation by light with sufficient photon energy. Most of the photocatalytic studies involve the use of TiO2 and well-suited model compounds, either as sacrificial agents or pollutants. However, the wider application of this technology requires the harvesting of a broader spectrum of solar irradiation and the suppression of the recombination of photogenerated charge carriers. These limitations can be overcome by the use of different strategies, among which the focus is put on the creation of heterojunctions with another narrow bandgap semiconductor, which can provide high response in the visible light region. In this review paper, we report the most recent advances in the application of TiO2 based heterojunction (semiconductor-semiconductor) composites for photocatalytic water treatment and water splitting. This review article is subdivided into two major parts, namely Photocatalytic water treatment and Photocatalytic water splitting, to give a thorough examination of all achieved progress. The first part provides an overview on photocatalytic degradation mechanism principles, followed by the most recent applications for photocatalytic degradation and mineralization of contaminants of emerging concern (CEC), such as pharmaceuticals and pesticides with a critical insight into removal mechanism, while the second part focuses on fabrication of TiO2-based heterojunctions with carbon-based materials, transition metal oxides, transition metal chalcogenides, and multiple composites that were made of three or more semiconductor materials for photocatalytic water splitting.

Sign in / Sign up

Export Citation Format

Share Document