King Saud University

Virginia Commonwealth University

Hamad Zaid Alkhathlan

Mahmood M S Abdullah

Merajuddin Khan

Frank B Gupton

Ayman Mohamady Atta

Hamad Abdulla Al-Lohedan

Victor Abdelsayed

M Samy El-Shall

Abdullah Mohammed Al-Mayouf

Zeid Abdullah M Alothman

Ali Siamaki

Abdulrahman O Ezzat

Hassan M A Hassan

Abd El Rahman S Khder

Khaled M Abouzeid

Qilin Dai

Parichehr Afshani

Extracts offlowers are shown to exhibit anticorrosive activity when used with mild steel in acidic media. A process is shown for obtaining such anticorrosive extracts from the flowers of. In particular, certain methanolic, aqueous methanolic and water extracts, as well as ethyl acetate and n-butanol fractions, offlowers are shown to demonstrate particular anticorrosive activity when used with mild steel in acidic media. An isolated flavonoid compound fromflowers, designated as apigenin-7-O-&#x3b2;-D-glucoside, is particularly useful for anticorrosive activity when used with mild steel in acidic media.

Method of protecting metal from corrosion using plant derived anti-corrosion agent

The biosynthesized magnetic metal nanoparticles for oil spill remediation are magnetic nanoparticles capped with an extract of. The magnetic nanoparticles are formed by co-precipitation of ferric chloride hexahydrate and ferrous chloride tetrahydrate in an ethanol solution of the extract with the dropwise addition of ammonium hydroxide to raise the pH to between 8 and 11. The extract may be an extract of the aerial parts ofin a low polar extraction solvent, such as an n-alkane solvent or mono-di-, or trichloromethane. The extract is hydrophobic, improving dispersion of the magnetic nanoparticles in oil spills in seawater, resulting in 90% removal of oil for a 1:10 ratio of nanoparticles:oil by weight.

Biosynthesized magnetic metal nanoparticles for oil spill remediation

Microwave irradiation is used to synthesize graphene and metallic nanocatalysts supported on graphene either by solid or solution phase. In solid phase methods, no solvents or additional reducing agents are required so the methods are 'environmentally friendly' and economical, and the graphene and nanocatalysts are substantially free of residual contaminants. Recyclable, high efficiency Pd nanocatylysts are prepared by these methods.

Production of graphene and nanoparticle catalysts supported on graphene using microwave radiation

Growing community of inventors

Riyadh, Saudi Arabia

Hamad Zaid Alkhathlan