Abstract The present study deals with the preparation of nanomagnetite (NM), potassium carrageenan (KC), and nanomagnetite/potassium bio-composite beads (NC). Characterization prepared solid materials using different physicochemical techniques such as X-ray diffraction analysis (XRD), thermogravimetric (TGA), scanning electron microscopy (SEM), transmission microscope (TEM), energy-disperse spe...

Titanium dioxide (TiO2) and Fe3O4 magnetite particles were coated on spherical Kissirises; glucose oxidase (GOx) enzyme was immobilized on Kissiris/Fe3O4/TiO2 by physical adsorption. This catalyst was analyzed by a scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and energy dispersive X-ray (EDX) measurements. The performance of the prepared biocatalyst in the...

In the past years, photoelectrocatalysis has been developed to offer green and sustainable application wastewater remediation, water disinfection, H 2 production CO reduction. The advances of these systems with new semiconductor photoelectrocatalysts that are photoexcited visible light giving photogenerated charge carriers efficiently, separated in a photoelectrochemical cell, explained. These ...

Membranes with zeolites are encouraging for performing blood dialysis because can eliminate uremic toxins through molecular sieving. Although the addition of various pore-gen and adsorbent in membrane certainly impact production along creatinine adsorption, however, it is not directed which zeolite leads to better performance. The research was aimed at reducing adsorption protein-bound by using...

One of the bio-sensing mechanisms is mechanical. Rather than measuring shift in resonance frequency, we adopt to measure the change in spring constant due to adsorption, as one of the fundamental sensing mechanism. This study explains  determination of spring constant of a surface functionalized micro machined micro cantilever, which resonates in a trapezoidal cavity-on Silicon wafer, with the ...

One of the bio-sensing mechanisms is mechanical. Rather than measuring shift in resonance frequency, we adopt to measure the change in spring constant due to adsorption, as one of the fundamental sensing mechanism. This study explains  determination of spring constant of a surface functionalized micro machined micro cantilever, which resonates in a trapezoidal cavity-on Silicon wafer, with the ...

The aim of this study was to synthesize chemically activated carbons from different agricultural residues, i.e., pistachio shell (PS), bitter orange peel (OP), and saffron petal (SP), subsequently use them as supports for loading a Ni catalyst. Supercritical water gasification bio-oil applied investigate the catalytic performance resulting catalysts. physicochemical properties carbon (ACs) cata...

Biosensors play a significant role in biomedical, clinical and disease diagnosis areas. Here, we proposed Langmuir adsorption model to explain sensing mechanism of biosensor based on excessively tilted fiber grating (Ex-TFG) functionalized with graphene oxide (GO). Due GO containing plenty six-membered rings oxygen-containing groups, the biomolecules can be easily adsorbed through π-π interacti...

The global warming potential (GWP) of methane (CH4) is 25 times the GWP of carbon dioxide (CO2); as such, controlling CH4 emissions at municipal solid waste (MSW) landfills is an urgent task. Oxidation of CH4 using soil covers and bio-enhanced covers as a CH4 mitigation strategy is receiving great attention from environmental professionals. Biochar-amended soil covers are proposed to effectivel...

Iron has been used previously in water decontamination, either unsupported or supported on clays, polymers, carbons or ceramics such as silica. However, the reported synthesis procedures are tedious, lengthy (involving various steps), and either utilise or produce toxic chemicals. Herein, the use of a simple, rapid, bio-inspired green synthesis method is reported to prepare, for the first time,...