Results 91 to 100 of about 118,822 (346)

α-Fe2O3 nanoparticles/vermiculite clay material: Structural, optical and photocatalytic properties [PDF]

open access: yes, 2019
Photocatalysis is increasingly becoming a center of interest due to its wide use in environmental remediation. Hematite (-Fe2O3) is one promising candidate for photocatalytic applications.
Kočí, Kamila   +4 more
core   +1 more source

Review of recent advances in the design, synthesis, and modification of biochar for remediation of heavy metal pollution in water

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Research frontiers in using biochar for heavy metal remediation. Abstract Heavy metal contamination of water has long been a serious environmental issue. Biochar and biochar‐based composites are emerging as effective and sustainable solutions for heavy metal removal due to their strong adsorption abilities and environmentally friendly nature.
Soumik Chakma   +4 more
wiley   +1 more source

Enhancement of the Plant‐Accessible Phosphate Fraction in Sewage Sludge Ashes by Na+ or K+ Addition Prior to Combustion

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
The addition of Na2CO3 or K2CO3 to sewage sludge prior to combustion leads to the production of ashes containing phosphate in the form of buchwaldite‐like phases (Ca(Na/K)PO4). Compared to conventional sewage sludge mono‐ashes, such Na‐ or K‐ashes show greatly increased P‐solubilities and proved to be potent P‐fertiliser materials in greenhouse ...
Lorenz Bier‐Schorr   +4 more
wiley   +1 more source

High‐Pressure Transformations and Stability of Ferromagnesite in the Earth's Mantle

open access: yesGeophysical Monograph Series, Page 105-113., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Eglantine Boulard   +2 more
wiley  

+2 more sources

Engineering surface states of hematite based photoanodes for boosting photoelectrochemical water splitting

open access: yesNanoscale Horizons, 2019
A critical review on how engineering surface states of hematite-based photoanodes can enhance the photoelectrochemical water splitting performance.
Pengyi Tang, J. Arbiol
semanticscholar   +1 more source

Geological and geotechnical challenges on the Great Dyke of Zimbabwe and their impact on hardrock pillar design

open access: yesDeep Underground Science and Engineering, EarlyView.
The Great Dyke of Zimbabwe is notable for its rich platinum group metal deposits but poses significant geological and geotechnical challenges due to its complex rock types and structural features. Traditional pillar design methods are insufficient for addressing these complexities; the study suggests incorporating advanced techniques such as machine ...
Tawanda Zvarivadza   +3 more
wiley   +1 more source

Wet Chemical Controllable Synthesis of Hematite Ellipsoids with Structurally Enhanced Visible Light Property

open access: yesThe Scientific World Journal, 2013
A facile and economic route has been presented for mass production of micro/nanostructured hematite microcrystals based on the wet chemical controllable method.
Chengliang Han   +3 more
doaj   +1 more source

The self-carrier effect of hematite in the flotation

open access: yes工程科学学报, 2019
Finely disseminated iron ores are a type of refractory iron ores that exist in many regions in China, where fine grind is essential to liberate iron minerals from gangue.
Dong LI   +3 more
doaj   +1 more source

Limitation of Fermi level shifts by polaron defect states in hematite photoelectrodes

open access: yesNature Communications, 2018
The optical band gap is a major selection criterion for an absorber in photocatalytic water splitting. Due to its ideal value hematite has been intensively investigated without reaching the expectation, yet.
C. Lohaus, A. Klein, W. Jaegermann
semanticscholar   +1 more source

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