Results 51 to 60 of about 5,041 (159)

Mineral Carbonation of Mixed Industrial Residues for Enhanced CO2 Sequestration and Environmental Stabilization: The Role of Slag Composition and Industrial Symbiosis

open access: yesAdvanced Energy and Sustainability Research, Volume 7, Issue 9, September 2026.
Accelerated CO2 carbonation transforms mixed industrial by‐products, including bottom ash (BA), fly ash (FA), and steel slags, into a value‐added material. The carbonated residue is used as a filler for HDPE composites, promoting both carbon sequestration and circular resource utilization.
Erica Pietrobelli   +5 more
wiley   +1 more source

Boron Isotope Evidence for Reduced Ventilation of the Deep Arctic Ocean During the Last Glacial Period

open access: yesPaleoceanography and Paleoclimatology, Volume 41, Issue 9, September 2026.
Abstract Understanding the ventilation of the deep ocean, where most ocean carbon is stored, is essential to understanding how changes to ocean carbon budgets contribute to climate change. In the Arctic Ocean, shifts in ice cover, stratification and temperature are likely to impact carbon sequestration in the ocean interior.
Jesse R. Farmer   +3 more
wiley   +1 more source

Special Vaterite Found in Freshwater Lackluster Pearls

open access: yes, 2016
In recent years, scientists have special interests in biovaterite found in freshwater cultured lackluster pearls in south China. Vaterite is an unstable crystalline form of calcium carbonate and rare in nature.
Li Qiao (341210)   +2 more
core   +1 more source

Self‐Assembled Calcite Architectures for Programmable Information Storage

open access: yesAdvanced Materials Technologies, Volume 11, Issue 16, 21 August 2026.
Programmable biomineralization enables the formation of 3D calcite architectures that encode information through spatially defined refractive‐index modulations. Data are written via laser‐directed mineralization, stored in stable voxelized mineral structures, and retrieved non‐destructively through optical diffraction, offering a pathway toward ultra ...
Congrui Jin   +2 more
wiley   +1 more source

Propriétés optiques de la série bastnaesite-vaterite

open access: yes, 1961
Dans la série bastnaesite-vaterite, on calcule, à partir des formules de Wiener, les courbes de nₒ² et I /ne² en fonction de la fraction en volume de vaterite. Ces courbes sont linéaires et rendent fidèlement compte des valeurs expérimentales des indices
Donnay, Gabrielle   +1 more
core   +1 more source

Fabrication and growth mechanism of pumpkin-shaped vaterite hierarchical structures [PDF]

open access: yes, 2014
CaCO3-based biominerals usually possess sophisticated hierarchical structures and promising mechanical properties. Recent researches imply that vaterite may play an important role in the formation of CaCO3-based biominerals.
Xu, Y Yifei, Xu, Y, Ma, G, Wang, M
core   +1 more source

Raman Line Scan Analyses and a New Hypothesis for the Formation of Anatase‐Hosting Microbialites: Study of the Stromatolites From Saint‐Jean‐de‐la‐Rivière, Cotentin, France

open access: yesJournal of Raman Spectroscopy, Volume 57, Issue 8, Page 1463-1480, August 2026.
Micrometer analysis of millimeter lines of Raman spectra concludes in the association of anatase and graphitized organic matter (graphogen). The photosynthetic microorganisms at the origin of the microbialites produce O2, which is transformed by TiO2 into reactive species that, in turn, decompose the organic matter of the microorganisms. ABSTRACT Raman
Marie‐Paule Bassez
wiley   +1 more source

Rapid growth causes abnormal vaterite formation in farmed fish otoliths

open access: yes, 2017
Sagittal otoliths are essential components of the sensory organs that enable all teleost fish to hear and maintain balance, and are primarily composed of calcium carbonate. A deformity, where aragonite (the normal crystal form) is replaced with vaterite,
S. E. Swearer   +7 more
core   +3 more sources

Effects of temperature, pH and calcium-to-carbonate ratio on the calcium carbonate polymorphs

open access: yesDiscover Civil Engineering
The precipitation of calcium carbonate (CaCO3) polymorphs (calcite, vaterite, and aragonite) plays a crucial role in tailoring the physicochemical properties of construction materials during mineral carbonation.
Mohd Hanifa   +3 more
doaj   +1 more source

Adsorption of Tetracycline and Congo Red by a Nitrogen and Sulfur Co‐Doped Crab Shell‐Derived Biochar (BC‐N/S): Mechanism and Estimated Cost

open access: yesChemistrySelect, Volume 11, Issue 30, 10 August 2026.
A nitrogen–sulfur co‐doped crab shell‐derived biochar (BC‐N/S) was prepared through a facile one‐pot synthesis. BC‐N/S showed improved surface area (13.462 m2g−1) and enhanced pore width. The BC‐N/S adsorbent displayed 100% preferential adsorption efficiency for Congo red compared to tetracycline (96.47%) in binary solution.
Omoyemen Oyegbeda, Abayneh Ataro Ambushe
wiley   +1 more source

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