Imam Mohammad Ibn Saud Islamic University

Mohamed Khairy Abdel Fattah Omran

Babiker Yagoub Elhadi Abdulkhair

Mohamed Mokhtar Mohamed

Salah Ahmed Ibrahim Eid

Mohamed Nady Abd El-Hameed Ibrahim

Samar Mohamed Syam

A method of water purification includes mixing contaminated water with a cobalt oxide/calcium silicate @graphitic carbon nitride (CoO/CaSiO@g-CN) nanocomposite material to form a reaction mixture, exposing the reaction mixture to light, and removing the nanocomposite material using filtration to form purified water. The nanocomposite material includes hexagonal metal oxide nanoparticles including a CoO phase and a CaSiOphase dispersed on a matrix of g-CNnanosheets, where the hexagonal metal oxide nanoparticles have an average particle diameter in a range from 340 to 440 nanometer (nm). The nanocomposite material has a band gap energy in a range from 1.5 to 3.75 electron volt (eV).

Cobalt oxide/calcium silicate @graphitic carbon nitride (CoO/CaSiO3@g-C3N4) nanocomposite as a photocatalyst

A method of degrading organic contaminants disposed in an aqueous medium, the method including contacting the aqueous medium with a particulate crystalline nanocomposite and irradiating the aqueous medium with radiation having a wavelength of from about 100 to about 800 nm. The particulate crystalline nanocomposite includes: a monoclinic bismuth oxide (BiO) crystalline phase; a calcium metasilicate (CaSiO) crystalline phase; and, a graphitic-carbon nitride (g-CN) crystalline phase, wherein at least a fraction of the graphitic-CNis in the form of mesoporous nanosheets.

Particulate crystalline nanocomposite

A method of immobilizing contaminants disposed in an aqueous medium, the method comprising: contacting the aqueous medium with a particulate crystalline nanocomposite for a sufficient contact time to permit adsorption of the contaminants. The particulate crystalline nanocomposite comprises: a hexagonal lanthanum hydroxide (La(OH)) crystalline phase; a lanthanum oxide (LaO) crystalline phase; a monoclinic calcium silicate (CaSiO) crystalline phase; and, a graphitic carbon nitride (g-CN) crystalline phase, wherein at least a fraction of the g-CNis in the form of mesoporous nanosheets.

Particulate crystalline nanocomposite as a sorbent for wastewater treatment

A method of hydrogen generation from sodium borohydride (NaBH) using a CoO/CaSiO@g-CNnanocomposite material includes hydrolyzing NaBHin the presence of a CoO/CaSiO@g-CNnanocomposite material, where the NaBHreacts with water to form hydrogen (H) gas in the presence of the CoO/CaSiO@g-CNnanocomposite material as a catalyst. Further, the CoO/CaSiO@g-CNnanocomposite material includes hexagonal metal oxide nanoparticles that include a CoO phase and a CaSiOphase dispersed on a matrix of g-CNnanosheets. The hexagonal metal oxide nanoparticles have an average particle diameter in a range from 340 to 430 nm. The method of the present disclosure has a hydrogen generation rate of at least 40 mL·min·g.

Hydrogen generation method from sodium borohydride using CoO/CaSiO3@g-C3N4 nanocomposite material

A La(OH)/LaO/CaSiO/g-CNparticulate crystalline nanocomposite including: a hexagonal lanthanum hydroxide (La(OH)) crystalline phase; a lanthanum oxide (LaO) crystalline phase; a monoclinic calcium silicate (CaSiO) crystalline phase; and, a graphitic carbon nitride (g-CN) crystalline phase, wherein at least a fraction of the g-CNis in the form of mesoporous nanosheets.

Lanthanum hydroxide /lanthanum oxide/calcium silicate/graphitic carbon nitride particulate crystalline nanocomposite

A method of photocatalytic degradation of a polluted solution includes contacting a solution containing one or more pollutants with a graphite-phase carbon nitride, calcium metavanadate, and calcium silicate (CaVO/CaSiO/g-CN) nanocomposite, followed by irradiating the nanocomposite with light to degrade one or more pollutants in the solution. The method further includes irradiating the CaVO/CaSiO/g-CNnanocomposite with a light having a wavelength of 200 to 800 nm to photocatalytically degrade the one or more pollutants in the solution.

Method of photocatalytic degradation of a pollutant using nanocomposite

A method of immobilizing contaminants disposed in an aqueous medium, the method including contacting the aqueous medium with a CaHPO/CaSiO(OH)/g-CNparticulate crystalline nanocomposite for a sufficient contact time to permit adsorption of the contaminants. The particulate crystalline nanocomposite includes: a calcium hydrogen phosphate (CaHPO) crystalline phase; a calcium silicate hydroxide (CaSiO(OH)) crystalline phase; a silicon dioxide (SiO) crystalline phase; and, a graphitic carbon nitride (g-CN) crystalline phase, wherein at least a fraction of the g-CNis in the form of mesoporous nanosheets.

Particulate crystalline nanocomposite and adsorbent

A method of manufacturing a nanocomposite may include combining a magnesium salt, an aluminum salt, and a manganese salt in stoichiometric proportions within 5 mol. % in an aqueous solvent including menthol or dextrose, to obtain a first mixture. The method further may include heating the first mixture to remove at least 99.5 percent by weight (wt. %) of the aqueous solvent to obtain a first solid, grinding the first solid into a first powder, calcining the first powder at a temperature of about 600 to 800° C. for a time of about 2 to 4 hours to obtain a second solid, grinding the second solid and urea, into a second powder, heating the second powder at a temperature of about 550 to 650° C. for a time of about 15 minutes to 1.5 hours to obtain the nanocomposite.

Manufacturing a nanocomposite

A method of treating a cancer by inducing apoptosis in a cancer cell includes contacting the cancer cell with a graphite-phase carbon nitride calcium metavanadate and calcium silicate (CaVO/CaSiO/g-CN) nanocomposite. The cancer cell is selected from at least one cancer cell line from the group consisting of a human hepatocellular carcinoma cell line and a human breast carcinoma cell line.

Method of treating cancer using CaV2O6/CaSiO3/g-C3N4 nanocomposite

A method of photodegrading an organic compound may include irradiating, in the presence of the organic compound, a nanocomposite including graphitic CN, MnO, and MgAlOin a mass relationship to each other in a range of from 5 to 15:2 to 7:75 to 95, at a temperature in a range of from 10° C. to 80° C. in a contaminated volume of water, thereby photodegrading the organic compound to partially decompose the organic compound and at least partially decontaminate the contaminated volume of water.

Nanocomposites for photodegradation of contaminants

A method of photodegrading an organic compound may include irradiating, in the presence of the organic compound, a nanocomposite comprising graphitic CN, FeO, and MgAlOin a mass relationship to each other in a range of from 5 to 15:2 to 7:75 to 95, at a temperature in a range of from 10° C. to 80° C. in a contaminated volume of water, thereby photodegrading the organic compound to partially decompose the organic compound and at least partially decontaminate the contaminated volume of water.

Photodegradation of contaminants via a nanocomposite

A method of removing a contaminant from water may include contacting contaminated water, including a heavy metal and/or an organic pollutant, with a nanocomposite including graphitic CN, MoO, and MgAlOin a mass relationship to each other in a range of from 5 to 15:2 to 7:75 to 95, thereby adsorbing the heavy metal and/or the organic pollutant onto the nanocomposite, as an adsorbed material. The method further includes removing the adsorbed material from the contaminated water, thereby reducing a concentration of the heavy metal in the contaminated water by at least 2 wt. %, the heavy metal includes Cd, Cr, Cu, Fe, Pb, Ni, Ag, Zn, and/or U, and the organic pollutant includes a dye.

Water decontamination via CN@MoO/MgAlOnanocomposite

A method of producing hydrogen gas includes hydrolyzing sodium borohydride (NaBH) at a temperature of from about 20 to about 75 degrees Celsius (° C.) in the presence of a nanocomposite having the general formula CuO·MgAlO; and, capturing hydrogen gas evolved as a hydrolysis product. Copper oxide (CuO) represents from about 1 to about 30 weight percent (wt. %) of the total weight of the nanocomposite.

Method for producing Hydrogen using copper oxide-magnesium aluminate (CuO.MgAlO) spinel nanocomposite

A method of inhibiting cell growth in a cancer includes contacting a graphite-phase carbon nitride copper oxide and magnesium aluminum oxide (g-CN@CuO/MgAlO) nanocomposite with the cancer to inhibit growth of the cancer. The g-CN@CuO/MgAlOnanocomposite comprises a graphite-phase carbon nitride (g-CN) in an amount of 2 to 18 percent by weight (wt. %), copper oxide in an amount of 1 to 10 wt. %, and magnesium aluminum oxide (MgAlO) in an amount of 75 to 95 wt. % based on a total weight of the g-CN@CuO/MgAlOnanocomposite. The cancer includes cells from a cell line selected from a group consisting of a human hepatocellular carcinoma (HepG-2) cell line and a human breast carcinoma (MCF-7) cell line.

Anticancer agents comprising a g-C3N4@CuO/MgAl2O4 nanohybrid

A method of storing electrical charge may include charging a capacitor, including an anode and/or a cathode layer further including a nanocomposite including graphitic CN, MnO, and MgAlOin a mass relationship to each other in a range of from 5 to 15:2 to 7:75 to 95, with alternating current at a frequency in a range of from 1 megahertz (MHz) to 12 MHz.

Growing community of inventors

Riyadh, Saudi Arabia

Mohamed Khairy Abdel Fattah Omran