Shahryar Pashaei; Soleyman Hosseinzadeh; Nahid Mohammadiasl
Abstract
A series of (Epoxy/Polyurethane)/Apple Waste Activated Carbon (EP/PU)/(AWAC) bio composites have been prepared with varying amounts of apple waste activated carbon (AWAC) viz., 0, 2.5, 5, 7.5 and 10 wt %. The prepared bio composites have been characterized for physico-mechanical behaviors and chemical ...
Read More
A series of (Epoxy/Polyurethane)/Apple Waste Activated Carbon (EP/PU)/(AWAC) bio composites have been prepared with varying amounts of apple waste activated carbon (AWAC) viz., 0, 2.5, 5, 7.5 and 10 wt %. The prepared bio composites have been characterized for physico-mechanical behaviors and chemical resistance. The obtained biocomposites have characterized via thermogravimetric analysis (TGA), Differential Scanning Calorimetry (DSC), and Scanning electron microscopy (SEM) to reveal the effect of the presence of the apple waste activated carbon (AWAC) on the properties of the obtained adsorbent. The thermal degradation behaviors of bio composites have been established using TGA thermograms. These results indicate that it is possible with increase the apple waste activated carbon content adsorption of (EP/PU)/(AWAC) is increased. Developed biocomposites from apple waste materials will help to reduce the overall cost of the materials for its demanding applications as insulating material. The as-prepared (EP/PU)/(AWAC) bio-adsorbent removes the cationic dyes from the waste water.
Shahryar Pashaei; Samaneh Safari; Soleyman Hosseinzadeh
Abstract
In the present study, synthesis of silver nanoparticles and its antibacterial activity were investigated. Silver nanoparticles were rapidly synthesized using leaf extract of beet sugar leaf the formation of nanoparticles was observed within 1 hr. The results recorded from UV–vis spectrum, Transmission ...
Read More
In the present study, synthesis of silver nanoparticles and its antibacterial activity were investigated. Silver nanoparticles were rapidly synthesized using leaf extract of beet sugar leaf the formation of nanoparticles was observed within 1 hr. The results recorded from UV–vis spectrum, Transmission electron microscopy (TEM) and X-ray diffraction (XRD) support the biosynthesis and characterization of silver nanoparticles. The UV-Visible spectrophotometer was indicated absorbance peak in range of 435-440 nm. From high resolution transmission electron microscopy (HRTEM) analysis, the size of the silver nanoparticles was measured 35–40nm. Further, the antibacterial activity of synthesized silver nanoparticles showed effective inhibitory. It showed that antibacterial activity increased by addition concentration of silver nano particle. The 0.008 molar concentrations of AgNPs, antibacterial activity was higher than other concentrations. Results confirmed this protocol as simple, rapid, one step, and eco-friendly, nontoxic and alternative conventional physical/chemical methods. Nanoparticle synthesis is a novel research are to search for an eco-friendly manner and green materials for potential applications in the fields of medicine and drug delivery.
