R
Richard N. Collins
Researcher at University of New South Wales
Publications - 90
Citations - 4082
Richard N. Collins is an academic researcher from University of New South Wales. The author has contributed to research in topics: Ferrihydrite & Lepidocrocite. The author has an hindex of 32, co-authored 86 publications receiving 3155 citations. Previous affiliations of Richard N. Collins include Indiana University & Australian Nuclear Science and Technology Organisation.
Papers
More filters
Journal ArticleDOI
The effect of silica and natural organic matter on the Fe(II)-catalysed transformation and reactivity of Fe(III) minerals
TL;DR: In this article, a freeze-dried Si co-precipitated ferrihydite species (Si-ferrihydrite) was used to investigate the effect of Si adsorption on the formation of Fe(III) oxyhydroxides.
Journal ArticleDOI
Effect of Solution and Solid-Phase Conditions on the Fe(II)-Accelerated Transformation of Ferrihydrite to Lepidocrocite and Goethite
TL;DR: The first detailed study of the kinetics of the Fe(II)-accelerated transformation of ferrihydrite to goethite, via lepidocrocite, for a range of pH and Fe( II) concentrations is presented and insight is provided into the factors controlling the transformation rate and the processes responsible for transformation.
Journal ArticleDOI
Advances in Surface Passivation of Nanoscale Zerovalent Iron: A Critical Review
TL;DR: An understanding of passivation chemistry, and its related mechanisms, is essential not only for effective NZVI application but also for accurately assessing the positive and negative effects of NZVI surface passivation.
Journal ArticleDOI
Microbial communities reflect temporal changes in cyanobacterial composition in a shallow ephemeral freshwater lake.
Jason N. Woodhouse,Andrew S. Kinsela,Richard N. Collins,Lee Chester Bowling,Gordon L Honeyman,Jon Holliday,Brett A. Neilan +6 more
TL;DR: Changes in the abundance and nature of freshwater cyanobacteria are associated with changes in the diversity and composition of lake bacterioplankton, and an increase in the frequency of cyanobacterial blooms has the potential to alter nutrient cycling and contribute to long-term functional perturbation of freshwater systems.
Journal ArticleDOI
Speciation of metal(loid)s in environmental samples by X-ray absorption spectroscopy: a critical review.
TL;DR: The application of μ-XANES imaging, a new combinatorial approach of X-ray fluorescence spectrometry and XANES spectroscopy at the micron scale, is one of the latest technological advances allowing for lateral resolution of chemical states over wide areas due to vastly improved data processing and detector technology.