Cement is an important component in repositories for low-level and intermediate-level radioactive waste. Nd uptake by hardened cement paste (HCP) has been investigated with the aim of developing a mechanistic understanding of the immobilization processes of trivalent lanthanides and actinides in HCP on the molecular level. Information on the microstructure of HCP, the Nd distribution in the cem...

The stable of natural diatomite supported by potassium hydroxide (KOH) as catalysts were synthesized for biodiesel production. A heterogeneous base catalyst prepared impregnating KOH onto was also used to synthesize from palm oil. All samples have been thoroughly characterized Wavelength Dispersive X-ray Fluorescence (WDXRF), diffraction (XRD), N2 adsorption/desorption, Scanning electron micros...

Abstract The archaeometric investigation of 46 potsherds “Torre Alemanna type” pottery aimed to define a compositional reference group and understand the technological characteristics its production. Principal component analysis applied bulk chemical data (XRF) ceramic body showed strong homogeneity. Their comparison with local clays 6 fragments bricks sampled from kiln, on one hand, revealed u...

In this paper, heterojunction nanowires of Ni-Se are fabricated via template-assisted electrodeposition process. Nanowires are characterized by scanning electron microscopy (SEM), Energy dispersive X-Ray Spectroscopy (EDS), X-ray diffractometry and electrical transport studies. SEM photographs reveal the uniform and dense growth of Ni-Se nanowires. X-ray diffraction pattern shows the crystallin...

Lead is the main toxic factor in jarosite residue. It important to study release behavior of lead from simulated lead-bearing (SLBJ) for predicting stability residue and its secondary pollution environment. To identify technical issues limitations associated with safe disposal, a comprehensive analysis chemical, structural, morphological characteristics SLBJ was conducted using various detectio...

This paper reveals an appropriate ingredient to operating the hazardous and radioactive electric arc furnace dust (EAFD) from steel production factory using cement immobilization technique. The specimens were prepared by mixing tap water with binders (i.e., ordinary Portland cement: OPC, EAFD) at different EAFD replacement of 0%, 15%, 25%, 35%, 40%, 45%, 50% weight. water-to-binders ratio was f...

Calcium pyrophosphate (CPP) was prepared by a simple precipitation method using avian eggshell waste as a low-cost alternative calcium precursor source. The synthesized CPP powder was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM/EDS), thermogravimetric analysis (TGA), and Fourier transform infrared spectroscopy (FTIR). The results indicate that pure b-CPP nanocrys...

This case report describes intratubular biomineralization in root canal, filled with calcium-enriched material after 8 years of clinical maintenance. The schematic findings of dentinal tubules were investigated with scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The root canal obturation material was closely adapted to root dentin surface, suggesting the possibilit...

Bu çalışmanın amacı, Yalıncak köyü (Hafik, Sivas) eski içme suyu kaynağındaki yüksek arsenik (As) derişiminin (1512 µg/L) kökeninin araştırılmasıdır. amaçla, kaynağının beslenim alanında yüzeyleyen kayaçlardan 48 adet örnek alınmıştır. Kayaç örneklerinin ana oksit içerikleri XRF yöntemiyle, mineralojik bileşimleri polarizan mikroskop ve XRD yöntemleriyle, minerallerin As derişimleri ise SEM-EDS...