نتایج جستجو برای: ecofriendly

تعداد نتایج: 971  

Nowadays, green chemistry and its advantages are generating interest of researchers toward ecofriendly biosynthesis of the metallic nanoparticles. In this research, a rapid, simple and green method was developed for the synthesis of silver nanoparticles using aqueous extract of Prangos ferulaceae leaves. The synthesized silver nanoparticles were characterized by UV-Vis spectroscopy, sc...

Journal: :Molecules 2011
Jorge A R Salvador Samuel M Silvestre Rui M A Pinto

Steroid and terpene chemistry still have a great impact on medicinal chemistry. Therefore, the development of new reactions or "greener" processes in this field is a contemporaneous issue. In this review, the use of bismuth(III) salts, as "ecofriendly" reagents/catalysts, on new chemical processes involving steroids and terpenes as substrates will be focused. Special attention will be given to ...

Journal: :Journal of engineering 2021

Large amounts of cotton microwastes are accumulated in textile industries. The microdust is less to ignite and causes serious environmental problems health hazards. This paper presents an experimental study, which investigates the potential use produce new lightweight brick for construction physical mechanical properties mixes having different levels ratio were investigated. test results record...

2014
Manjusha Hariharan Benny Cherian

Calcium carbonate nano particles were synthesized using precipitation method from cockle shells by employing chitosan as precursor. Synthesized Calcium carbonates were characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), UV-Visible and FTIR Spectroscopy. The results were compared with commercial calcium carbonate nano particles. Cockle shells are the potential source...

2011
MUKESH KUMAR RICHA TIWARI KRISHNA SHARMA

Oxidation of pollutants in waste water by photo-Fenton reaction has proven an ecofriendly and economical method. Oxidation of amido black – 10B, (an acid dye of azo series) using photoFenton reagent was investigated under ambient conditions. The effect of different parameters like the concentration of ferric ion, amido black10B and hydrogen peroxide, pH, light intensity etc. on the reaction rat...

2011
Carolina M Rodrigues Ana Bio Francisco Amat Natividade Vieira

Solar salinas are man-made systems exploited for the extraction of salt, by solar and wind evaporation of seawater. Salt production achieved by traditional methods is associated with landscapes and environmental and patrimonial values generated throughout history. Since the mid-twentieth century, this activity has been facing a marked decline in Portugal, with most salinas either abandoned or s...

Journal: :Pakistan Journal of Scientific & Industrial Research Series A: Physical Sciences 2017

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