Structure and phase analysis of calcium carbonate powder prepared by a simple solution method

Febrida, Renny; Setianto, Setianto; Herda, Ellyza; Cahyanto, Arief; Joni, I Made

doi:10.1016/j.heliyon.2021.e08344

Cited by 11 publications

(8 citation statements)

References 38 publications

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“…For MPs, typical crystalline peaks of the trigonal phase confirmed the formation of calcite. 32 There were no crystalline peaks for CaCO 3 NPs, verifying their amorphous structure, which is in agreement with the previous work. 30 Furthermore, the CaCO 3 MPs and NPs were characterized by EDS and FTIR analysis (Fig.…”

Section: Resultssupporting

confidence: 92%

Size-dependent therapeutic efficiency of ²²³Ra-labeled calcium carbonate carriers for internal radionuclide therapy of breast cancer

Akhmetova,

Mitusova,

Postovalova

et al. 2024

Biomater. Sci.

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Section: Resultssupporting

confidence: 92%

Size-dependent therapeutic efficiency of ²²³Ra-labeled calcium carbonate carriers for internal radionuclide therapy of breast cancer

Akhmetova,

Mitusova,

Postovalova

et al. 2024

Biomater. Sci.

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“…These structures represent the presence of calcite, which has a rhombohedral shape, and aragonite, which has a rod- or needle-like particle shape . Under normal conditions, the most thermodynamically stable form of CaCO 3 is calcite (β-CaCO 3 ), while, as mentioned above, other polymorphs of CaCO 3 such as aragonite (λ-CaCO3) and vaterite (μ-CaCO3) can be formed at certain pH and temperature conditions . It should be noted that vaterite has a spherical shape, and therefore it was not identified herein.…”

Section: Resultsmentioning

confidence: 94%

Wastewater Treatment for Carbon Dioxide Removal

Masindi,

Foteinis,

Renforth

et al. 2023

ACS Omega

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Wastewater treatment is notorious for its hefty carbon footprint, accounting for 1–2% of global greenhouse gas (GHG) emissions. Nonetheless, the treatment process itself could also present an innovative carbon dioxide removal (CDR) approach. Here, the calcium (Ca)-rich effluent of a phosphorus (P) recovery system from municipal wastewater (P recovered as calcium phosphate) was used for CDR. The effluent was bubbled with concentrated CO2, leading to its mineralization, i.e., CO2 stored as stable carbonate minerals. The chemical and microstructural properties of the newly formed minerals were ascertained by using state-of-the-art analytical techniques. FTIR identified CO3 bonds and carbonate stretching, XRF and SEM-EDX measured a high Ca concentration, and SEM imaging showed that Ca is well distributed, suggesting homogeneous formation. Furthermore, FIB-SEM revealed rhombohedral and needle-like structures and TEM revealed rod-like structures, indicating that calcium carbonate (CaCO3) was formed, while XRD suggested that this material mainly comprises aragonite and calcite. Results imply that high-quality CaCO3 was synthesized, which could be stored or valorized, while if atmospheric air is used for bubbling, a partial direct air capture (DAC) system could be achieved. The quality of the bubbled effluent was also improved, thus creating water reclamation and circular economy opportunities. Results are indicative of other alkaline Ca-rich wastewaters such as effluents or leachates from legacy iron and steel wastes (steel slags) that can possibly be used for CDR. Overall, it was identified that wastewater can be used for carbon mineralization and can greatly reduce the carbon footprint of the treatment process, thus establishing sustainable paradigms for the introduction of CDR in this sector.

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“…The morphology and polymorph structure of CaCO 3 crystals can be achieved by various synthesis techniques at controlled nonboiling temperatures. 27 However, controlling crystal growth during boiling is quite difficult as bubbling causes strong turbulence, 28 resulting in heterogeneous microenvironments for crystal growth and random occurrence of different CaCO 3 crystal phases. 29 Nanoplastics were either encapsulated in calcite, aragonite, and vaterite crystals or attached to the growing planes of CaCO 3 crystals (Figure 1h− j).…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…97-009-4587) were also detected, probably ascribed to the presence of trace-level magnesium ions in tap water (Figure d and Table S7). The morphology and polymorph structure of CaCO 3 crystals can be achieved by various synthesis techniques at controlled nonboiling temperatures . However, controlling crystal growth during boiling is quite difficult as bubbling causes strong turbulence, resulting in heterogeneous microenvironments for crystal growth and random occurrence of different CaCO 3 crystal phases .…”

Section: Results and Discussionmentioning

confidence: 99%

Drinking Boiled Tap Water Reduces Human Intake of Nanoplastics and Microplastics

Yu,

Wang,

Liu

et al. 2024

Environ. Sci. Technol. Lett.

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Tap water nano/microplastics (NMPs) escaping from centralized water treatment systems are of increasing global concern, because they pose potential health risk to humans via water consumption. Drinking boiled water, an ancient tradition in some Asian countries, is supposedly beneficial for human health, as boiling can remove some chemicals and most biological substances. However, it remains unclear whether boiling is effective in removing NMPs in tap water. Herein we present evidence that polystyrene, polyethylene, and polypropylene NMPs can coprecipitate with calcium carbonate (CaCO 3 ) incrustants in tap water upon boiling. Boiling hard water (>120 mg L −1 of CaCO 3 ) can remove at least 80% of polystyrene, polyethylene, and polypropylene NMPs size between 0.1 and 150 μm. Elevated temperatures promote CaCO 3 nucleation on NMPs, resulting in the encapsulation and aggregation of NMPs within CaCO 3 incrustants. This simple boiling-water strategy can "decontaminate" NMPs from household tap water and has the potential for harmlessly alleviating human intake of NMPs through water consumption.

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Structure and phase analysis of calcium carbonate powder prepared by a simple solution method

Cited by 11 publications

References 38 publications

Size-dependent therapeutic efficiency of ²²³Ra-labeled calcium carbonate carriers for internal radionuclide therapy of breast cancer

Size-dependent therapeutic efficiency of ²²³Ra-labeled calcium carbonate carriers for internal radionuclide therapy of breast cancer

Wastewater Treatment for Carbon Dioxide Removal

Drinking Boiled Tap Water Reduces Human Intake of Nanoplastics and Microplastics

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Structure and phase analysis of calcium carbonate powder prepared by a simple solution method

Cited by 11 publications

References 38 publications

Size-dependent therapeutic efficiency of 223Ra-labeled calcium carbonate carriers for internal radionuclide therapy of breast cancer

Size-dependent therapeutic efficiency of 223Ra-labeled calcium carbonate carriers for internal radionuclide therapy of breast cancer

Wastewater Treatment for Carbon Dioxide Removal

Drinking Boiled Tap Water Reduces Human Intake of Nanoplastics and Microplastics

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Product

Resources

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Size-dependent therapeutic efficiency of ²²³Ra-labeled calcium carbonate carriers for internal radionuclide therapy of breast cancer

Size-dependent therapeutic efficiency of ²²³Ra-labeled calcium carbonate carriers for internal radionuclide therapy of breast cancer