King Fahd University of Petroleum and Minerals

King Abdulaziz City for Science and Technology

Chanbasha Basheer

Rashed Saed Bakdash

Isam Hassan Aljundi

Hakimu Nsubuga

Abdulnaser Khaled Alsharaa

Abdulmumin A Nuhu

Abdul Rahman Al-Arfaj

Abdulaziz Al-Saadi

Mousa Yaser Amayreh

Ahmed Abdi Hassan

Salawu Omobayo Adio

Amjad Ashfaque Shaikh

Khalid Rashed Alhooshani

Ismail Abdulazeez

Muhammad Azeem Akbar

Muhammad Mustapha Adam

Mousa Yasir Mousa Amayreh

Abdulelah Ahmed Ali Thabet

A method of electrochemically forming methanol from methane using a fuel cell. The fuel cell includes an anode chamber including an anode including a catalyst that includes carbon-doped γ-FeOnanoparticles disposed on a graphite felt support and an anode solution including water and methane, a cathode chamber including a cathode and a cathode solution including water, and a proton exchange membrane separating the anode chamber and the cathode chamber. The method includes supplying methane to the anode, applying a voltage to the fuel cell, and collecting methanol from the anode solution.

Method of electrochemically forming methanol

Copper-boron-ferrite (Cu—B—Fe) composites may be prepared and immobilized on graphite electrodes in a silica-based sol-gel, e.g., from rice husks. Different bimetallic loading ratios can produce fast in-situ electrogeneration of reactive oxygen species, HOand ·OH, e.g., via droplet flow-assisted heterogeneous electro-Fenton reactor system. Loading ratios of, e.g., 10 to 30 wt. % Feand 5 to 15% wt. Cu, can improve the catalytic activities towards pharmaceutical beta blockers (atenolol and propranolol) degradation in water. Degradation efficiencies of at least 99.9% for both propranolol and atenolol in hospital wastewater were demonstrated. Radicals of ·OH in degradation indicate a surface mechanism at inventive cathodes with correlated contributions of iron and copper. Copper and iron can be embedded in porous graphite electrode surface and catalyze the conversion of HOto ·OH to enhance the degradation. Inventive cathodes can be stable catalytically after 20 or more cycles under neutral and acidic conditions.

Electrochemical cell with coated sulfonated graphite cathode

A membrane sorbent is described, which comprises 1-6 wt % silicon carbide nanoparticles dispersed in a polymer matrix. The polymer matrix may comprise polysulfone and polyvinylpyrrolidone. The membrane sorbent is used for separating oil from a contaminated water mixture. The silicon carbide nanoparticles of the membrane sorbent may be made from rice husk ash.

Method for separating an oil-water emulsion

Droplet flow-assisted electro-Fenton reactor system

Hydrogen peroxide generation system

Adsorbent cartridge for oil/water separation

Coated sulfonated graphite slab electrode

An aminated siliceous adsorbent, which is the reaction product of dried acidified rice husk ash having disordered mesopores and an amino silane, wherein amine functional groups are present on an external surface and within the mesopores of the dried acidified rice husk ash, and wherein the aminated siliceous adsorbent has a carbon content of 24 to 30 wt. %, based on a total weight of the aminated siliceous adsorbent. A method of making the aminated siliceous adsorbent and a method of capturing COfrom a gas mixture with the aminated siliceous adsorbent.

Method of capturing carbon dioxide from a gas mixture

Method for making an aminated siliceous adsorbent

Rice-husk derived silicon carbide membrane sorbent for oil removal

Aminated siliceous adsorbent from rice husk ash and a method of capturing carbon dioxide

Copper-boron-ferrite (Cu&#x2014;B&#x2014;Fe) composites may be prepared and immobilized on graphite electrodes in a silica-based sol-gel, e.g., from rice husks. Different bimetallic loading ratios can produce fast in-situ electrogeneration of reactive oxygen species, HOand .OH, e.g., via droplet flow-assisted heterogeneous electro-Fenton reactor system. Loading ratios of, e.g., 10 to 30 wt. % Feand 5 to 15% wt. Cu, can improve the catalytic activities towards pharmaceutical beta blockers (atenolol and propranolol) degradation in water. Degradation efficiencies of at least 99.9% for both propranolol and atenolol in hospital wastewater were demonstrated. Radicals of .OH in degradation indicate a surface mechanism at inventive cathodes with correlated contributions of iron and copper. Copper and iron can be embedded in porous graphite electrode surface and catalyze the conversion of HOto .OH to enhance the degradation. Inventive cathodes can be stable catalytically after 20 or more cycles under neutral and acidic conditions.

Copper-boron-ferrite graphite silica-sol composites

An antimicrobial coated textile is provided. The antimicrobial coated textile includes a textile substrate including a plurality of textile fibers and a coating. The coating includes 77.5 to 97.45 wt. % silica, 0.05 to 2.5 wt. % titanium dioxide, and 2.5 to 20 wt. % an oxide of a second metal, each based on a total weight of the coating. The second metal is selected from a group including zinc (Zn), selenium (Se), iron (Fe), copper (Cu), and zirconium (Zr), and the coating is disposed on a surface of the textile fibers. A method of preparing the antimicrobial coated textile is also provided.

Antimicrobial coated textiles and method of preparation thereof

A method for producing a fluorinated carbon adsorbent which involves digesting rice husk, sulfonating the digested rice husk, and fluorinating the sulfonated rice husk. The method yields a fluorinated carbon adsorbent material having an adsorption capacity for COof 1.6 to 2.5 mmol/g, an adsorption capacity for CHof 0.4 to 0.8 mmol/g, and an adsorption capacity for Nof 0.1 to 0.4 mmol/g, at a temperature of 273 to 298 K and a pressure of 0.75 to 1.5 atm. Also disclosed is a method for separating a mixture of gases using the fluorinated carbon adsorbent.

Method of producing fluorinated carbon from rice husk

A method for producing biodiesel using a sulfonated, carbonaceous catalyst produced from rice husk,seeds, or algae biomass, a method for producing the catalyst, and the catalyst itself.

Efficient biomass carbon-based solid acid esterification catalyst for producing biodiesel

Growing community of inventors

Dhahran, Saudi Arabia

Chanbasha Basheer