Biosorption of toxic metal ions (Cr, Cd) and nutrients (PO) from aqueous solution by diatom biomass.

This paper evaluates diatom biomass as a biosorbent for removing Cr, Cd, and PO ions from water. The diatom was characterized by X-ray Diffraction (XRD), Fourier Transform Infrared (FTIR), and Scanning Electron Microscopy (SEM-EDS) for its crystallinity, functional groups, and morphology. A batch sorption study was conducted to evaluate the parameters influencing Cr, Cd, and PO ions adsorption, and the mechanisms were explored.

Synthesis of porous hydroxysodalite from aluminosilicate rich clay soils: application towards fluoride and pathogen removal.

This article discussed the potential application of hydrothermally synthesized porous hydroxysodalite material synthesized from aluminosilicate clay material as a multifunctional adsorbent for fluoride and pathogen removal from groundwater. The efficiency of the material towards fluoride removal was evaluated using batch experiments while the efficacy against the E. coli strain was evaluated using well-assay diffusion method.

Synthesis and evaluation of the oil removal potential of 3-bromo-benzimidazolone polymer grafted silica gel.

This work reports the synthesis of 3-bromo-benzimidazolone using melt condensation, its polymerization and functionalization on silica which was extracted from diatomaceous earth in our previous work. The synthesized compounds were characterized using FTIR, NMR, SEM-EDS and TEM. The FTIR and NMR spectra of the synthesized benzimidazolones showed the compounds to have several functional groups: A band due to Si-O-C at 1085.

Synthesis, Characterization and In Vitro Antibacterial Evaluation of Conjugated Silver Nanoparticles.

In the present study, silver nanoparticles (AgNPs) were synthesized using both the chemical and biological methods and conjugated with extracts. These were then characterized and evaluated for antimicrobial activities against multi-drug resistant pathogens, such as methicillin-resistant (MRSA), and . Nanoparticles were analyzed with UV-visible spectrophotometer, transmission electron microscopy (TEM), and energy dispersive X-ray analysis (EDX).

Synthesis of Fe Doped Poly p-Phenylenediamine Composite: Co-Adsorption Application on Toxic Metal Ions (F and As) and Microbial Disinfection in Aqueous Solution.

Water is regarded as an important natural resource to sustain life, and its purification is an important criterion that determines its quality and usefulness. In this study, the incorporation of Fe oxide onto a phenylenediamine (pPD) polymer matrix through chemical co-polymerization was prepared, and its arsenite and fluoride removal potentials at optimal conditions from aqueous solution were evaluated. The morphology and structural analysis of the synthesized Fe-doped pPD (Fe-pPD) were comparatively evaluated using the FT-IR, SEM, EDS, and XRD techniques.