Hydroxyapatite has been synthesized using eggshell membrane as bio-template along with the assistance of microwave heating. Eggshell membrane is infiltrated with calcium and phosphorous precursors before heating it in a domestic microwave oven. Hydroxyapatite formed retained the interwoven hiera...

Titanium-doped hydroxyapatite (Ti-HAp, (Ca10-2x, Tix, □x) (PO4)6(OH)2, □: defect in Ca site) and hydroxyapatite (HAp, Ca10(PO4)6(OH)2) powders were modified with an ethanol solution of molybdenyl acetylacetonate (MoO2(C5H8O2)2) using chemisorption calcination cycle (CCC) technique, which provi...

Fluorapatite Ca5F(PO4)3 is a kind of important thermoluminescence dosimeter (TLD) material, because the effective atomic number of fluorapatite is close to that of human bones and teeth. In the present study, thermoluminescence (TL) properties of fluorapatite mineral in tooth enamel under the di...

The effect of titania content on mechanochemical synthesis of chlorapatite–titania composite nanopowders was studied for the first time. According to the obtained data, the phase compositions, structural features as well as morphological characteristics of the composites were influenced by the ...

Chlorine substituted hydroxyapatite (HAP) and biphasic mixtures (HAP + β-TCP) were prepared through an aqueous precipitation method. Characterization studies using XRD, thermograms, elemental analysis and FT-IR spectra have confirmed the incorporation of added chlorine into the apatite structur...

Magnetic chlorapatite nanoparticles (MNCLAP) was synthesized and used as adsorbent to remove Zn2+, Cd2+ and Pb2+ from aqueous solutions. The synthesized MNCLAP was characterized by scanning electron microscopy (SEM), energy dispersive analysis system of X-ray (EDAX), transmission electron micros...

In this research, nanocrystalline chlorapatite particles were synthesized via an in situ wet-chemical precipitation method at room temperature, and then various heat-treatment temperatures were examined to consider the effect of the heat-treatment process on the structure and morphology of the s...

The ultrasound-assisted conversion of chlorapatite nanoparticles obtained from a natural phosphate rock into hydroxyapatite nanocrystals was achieved within one hour. The process had no significant impact on particle crystallinity but led to a significant decrease of the colloidal size. Similar ...

Phosphate (P) compounds are usually used as chemical amendment for in situ remediation of heavy metal polluted sediment. However, the low deliverability, weak utilization and potential risk of eutrophication inhibit the application of most P materials. Therefore, rhamnolipid (Rha), a kind of ani...

Some rivers in China have been seriously contaminated due to the discharge of lead (Pb) smelting wastewater. In this study, biochar-supported nano-chlorapatite (BC-nClAP) was synthesized to immobilize Pb in contaminated sediment. The remediation effect of BC-nClAP on Pb-contaminated sediment was...

Carbonate doped chlorapatite–ZnO composite nanopowders with negative zeta potential were synthesized by one step mechanochemical process as a novel bioceramic. Results indicated that the formation of carbonate doped chlorapatite–ZnO composite was varied by incorporation of different ZnO conten...

A mechanically activated solid-state displacement reaction has been investigated as a means of manufacturing apatite nanoparticles. Mechanical milling and subsequent heat treatment of a CaCl2, Na3PO4 and NaCl reactant mixture resulted in the formation of chlorapatite nanoparticles embedded withi...

With Sitophilus zeamais as the target organism, the present study for the first time attempted to elucidate the comparative effects between allyl isothiocyanate (AITC) and calcium phosphide (Ca3P2), exposure on mitochondrial electron transport chain (ETC.) complex I & IV and their downstream eff...

Calcium phosphide (Ca3P2) is a widely used fumigant due to its ability to kill a broad spectrum of stored-grain insect pests and its easy penetration into the commodity while leaving minimal residues. Field experiments were conducted to evaluate the efficacy of Ca3P2 as a potential methyl bromid...

In this study, copper selenide thin films were fabricated by ion beam sputtering deposition by using a fan-shaped target of Cu and Se. The influence of heat treatment on thermoelectric properties of copper selenide thin films was investigated. X-ray diffraction results demonstrate that the as-de...

The elastic constants and electronic structure of CaSe have been investigated using the ab initio periodic linear combination of atomic orbitals method implemented in the program crystal 95 . Calcium and selenium are described by all-electron and relativistic pseudopotential basis sets, respecti...

This contribution reports on detailed experimental and numerical investigations of both near-infrared (NIR) and mid-infrared (MIR) photoluminescence obtained in praseodymium trivalent ion doped chalcogenide-selenide glass fiber. The experimental analysis allows for the identification of the radi...

Energy band structures under pressure of calcium selenide (CaSe) were calculated using the plane-wave pseudopotential code CASTEP. The results show a progressive transition from a direct to an indirect gap semiconductor at a pressure of about 2 GPa, in the B1 phase. An insulator–conductor chang...

Calcium peroxide (CaO2), one of versatile and harmless inorganic peroxy compounds, has been recently used as a highly effective oxidant to degrade pollutants in sludge and a method to achieve sludge resource utilization. However, its impact on hydrogen production has never been studied before. T...

In order to improve mechanical properties and biomedical behavior of chitosan-based polymeric films, the effect of nanocrystalline cellulose (NCC) and calcium peroxide (CP) particles on the properties of polymeric films based on chitosan (CS) and gelatin (GL) were investigated in this study. The...