Details

Autor(en) / Beteiligte

• Siebecker, Matthew
• Li, Wei
• Khalid, Syed
• Sparks, Donald

Titel

Real-time QEXAFS spectroscopy measures rapid precipitate formation at the mineral-water interface

Ist Teil von

• Nature communications, 2014-09, Vol.5 (1), p.5003-5003, Article 5003

Ort / Verlag

England: Nature Publishing Group

Erscheinungsjahr

2014

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Reactions at the mineral-water interface are central to numerous geochemical processes and have consequences at local, regional and global scales. They are also important in materials science research. Kinetics greatly influences mineral-water interface reactions; however, there are few kinetic data in real-time and at the molecular scale. Here we report real-time data illustrating the rapid formation of nickel aluminium-layered double hydroxide precipitates at the mineral-water interface in a flow environment in as little as 31-40 min. Layered double hydroxides have a variety of applications in environmental remediation and materials science. The real-time data shown here enhance our fundamental understanding of the kinetics of mineral-water interface processes, such as adsorption, dissolution and precipitation, by illustrating their rapid and simultaneous occurrence in a dynamic environment. Both precipitation and adsorption can occur on the same rapid timescale.