Cold sintering of calcium carbonate derived from seashells

Yamaguchi, Keitaro; Hashimoto, Shinobu

doi:10.1016/j.oceram.2022.100302

Cited by 7 publications

(5 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, numerous studies have proposed recycling seashells and integrating them as fillers and aggregates in building materials such as mortar, cement, and concrete [77,78]. This is thanks to their high content of calcium carbonate that makes 95% of their composition [79,80], and to their richness in chitin that comprises 20-30% of their composition and could reach 60% according to their type and species [81]. Chitin has excellent properties of non-toxicity, film-formation capacity, biodegradability, and biocompatibility.…”

Section: Discussionmentioning

confidence: 99%

Biowelding 3D-Printed Biodigital Brick of Seashell-Based Biocomposite by Pleurotus ostreatus Mycelium

Abdallah,

Estévez

2023

Biomimetics

View full text Add to dashboard Cite

Mycelium biocomposites are eco-friendly, cheap, easy to produce, and have competitive mechanical properties. However, their integration in the built environment as durable and long-lasting materials is not solved yet. Similarly, biocomposites from recycled food waste such as seashells have been gaining increasing interest recently, thanks to their sustainable impact and richness in calcium carbonate and chitin. The current study tests the mycelium binding effect to bioweld a seashell biocomposite 3D-printed brick. The novelty of this study is the combination of mycelium and a non-agro–based substrate, which is seashells. As well as testing the binding capacity of mycelium in welding the lattice curvilinear form of the V3 linear Brick model (V3-LBM). Thus, the V3-LBM is 3D printed in three separate profiles, each composed of five layers of 1 mm/layer thickness, using seashell biocomposite by paste extrusion and testing it for biowelding with Pleurotus ostreatus mycelium to offer a sustainable, ecofriendly, biomineralized brick. The biowelding process investigated the penetration and binding capacity of the mycelium between every two 3D-printed profiles. A cellulose-based culture medium was used to catalyse the mycelium growth. The mycelium biowelding capacity was investigated by SEM microscopy and EDX chemical analysis of three samples from the side corner (S), middle (M), and lateral (L) zones of the biowelded brick. The results revealed that the best biowelding effect was recorded at the corner and lateral zones of the brick. The SEM images exhibited the penetration and the bridging effect achieved by the dense mycelium. The EDX revealed the high concentrations of carbon, oxygen, and calcium at all the analyzed points on the SEM images from all three samples. An inverted relationship between carbon and oxygen as well as sodium and potassium concentrations were also detected, implying the active metabolic interaction between the fungal hyphae and the seashell-based biocomposite. Finally, the results of the SEM-EDX analysis were applied to design favorable tessellation and staking methods for the V3-LBM from the seashell–mycelium composite to deliver enhanced biowelding effect along the Z axis and the XY axis with <1 mm tessellation and staking tolerance.

show abstract

Section: Discussionmentioning

confidence: 99%

Biowelding 3D-Printed Biodigital Brick of Seashell-Based Biocomposite by Pleurotus ostreatus Mycelium

Abdallah,

Estévez

2023

Biomimetics

View full text Add to dashboard Cite

show abstract

“…One study reported 97 wt.% of Ca in C. gigas treated at 1 000 °C [30], while other studies found 98.22 wt.% of Ca for Saccostrea cucullata [31] and 97.74 wt.% for Ostrea plicatula [32]. Previous studies reported a Ca content of 87.2 wt.% in mussel shells [33] and 97.90 wt.% in eggshells measured by XRF [34]. Our results confirmed that C. belcheri waste oyster shells originated in Muar River are rich in Ca and can be utilized to produce Ca-related products.…”

Section: Xrf Analysismentioning

confidence: 99%

Simple Thermal Treatment of Waste Oyster ( Crassostrea belcheri) Shells for the Production of Calcium Minerals in Biomaterials Application

Rosli,

Jameel,

Mayzan

et al. 2024

Nano Biomedicine and Engineering

View full text Add to dashboard Cite

The effect of the thermal treatment of waste oyster (Crassostrea belcheri) shells on different properties was explored. In this preliminary work, the waste oyster shells were collected from Muar River, Malaysia. All samples were cleaned, dried, and subjected to a simple heat treatment in air at 500-1 200 °C. All heat-treated samples were characterized to determine their mass loss, chemical composition, crystalline phase, surface morphology, and powder density properties. Changing the temperature from 500 to 1 200 °C increases the calcium (Ca) food content in oyster shells. Furthermore, the decomposition of calcium carbonate (CaCO 3 ) from 98.15 wt.% to 99.07 wt.% was completed at 682 °C with 45 wt.% mass loss in a controlled nitrogen environment. When heat treatment processes are conducted in air, only 14.74 wt.% mass loss is recorded. The X-ray diffraction results confirmed that CaCO 3 successfully transformed α peak (CaO 4 ) to γ peak and η peak (CaO) at an angle (θ) of 30° and at above 800 °C. The Fourier transform infrared (FTIR) Result revealed changes in functional groups as the temperature increased. The phase transformation and morphological analysis agree with measured powder density values from 2.63 to 2.30 g•cm −3 . All these findings indicate that heated waste oyster shells are a potential source of calcium minerals and can be used for biomaterial products.

show abstract

“…A good example is represented by the possibility of cold sintering for ball millpulverized clam and oyster shells, sieved to 63 µm with uniaxial pressure and temperatures below 300 • C, to allow densification and lead to their possible application as construction materials. Observations by X-ray diffraction (XRD) indicated the modalities of phase transformation from aragonite to calcite under temperatures lower than 300 • C. Cold sintering decreases the amount of residual water, whilst, on the other hand, compression strength declines at 200 • C, since water promotes densification [67].…”

Section: Applications Of Clam Shells In Compositesmentioning

confidence: 99%

Biomimetic Use of Food-Waste Sources of Calcium Carbonate and Phosphate for Sustainable Materials—A Review

Piras,

Salathia,

Guzzini

et al. 2024

Materials

View full text Add to dashboard Cite

Natural and renewable sources of calcium carbonate (CaCO3), also referred to as “biogenic” sources, are being increasingly investigated, as they are generated from a number of waste sources, in particular those from the food industry. The first and obvious application of biogenic calcium carbonate is in the production of cement, where CaCO3 represents the raw material for clinker. Overtime, other more added-value applications have been developed in the filling and modification of the properties of polymer composites, or in the development of biomaterials, where it is possible to transform calcium carbonate into calcium phosphate for the substitution of natural hydroxyapatite. In the majority of cases, the biological structure that is used for obtaining calcium carbonate is reduced to a powder, in which instance the granulometry distribution and the shape of the fragments represent a factor capable of influencing the effect of addition. As a result of this consideration, a number of studies also reflect on the specific characteristics of the different sources of the calcium carbonate obtained, while also referring to the species-dependent biological self-assembly process, which can be defined as a more “biomimetic” approach. In particular, a number of case studies are investigated in more depth, more specifically those involving snail shells, clam shells, mussel shells, oyster shells, eggshells, and cuttlefish bones.

show abstract

Cold sintering of calcium carbonate derived from seashells

Cited by 7 publications

References 40 publications

Biowelding 3D-Printed Biodigital Brick of Seashell-Based Biocomposite by Pleurotus ostreatus Mycelium

Biowelding 3D-Printed Biodigital Brick of Seashell-Based Biocomposite by Pleurotus ostreatus Mycelium

Simple Thermal Treatment of Waste Oyster ( Crassostrea belcheri) Shells for the Production of Calcium Minerals in Biomaterials Application

Biomimetic Use of Food-Waste Sources of Calcium Carbonate and Phosphate for Sustainable Materials—A Review

Contact Info

Product

Resources

About