Imam Abdulrahman Bin Faisal University

Hanan Hussein Amin Mohamed

Nuhad Abdullah Alomair

Aamerah Abdulwahab Alsanea

Sultan Akhtar

Tamer Ezzat Youssef Moustafa

Ines Mohsen Hammami

A method for producing crystalline α-Fe2O3 nanoparticles involving ultrasonic treatment of a solution of an iron (III)-containing precursor and an extract from the seeds of a plant in the family Linaceae. The method involves preparing an aqueous extract from the seeds of a plant in the family Linacae and dropwise addition of the extract to the solution of an iron (III)-containing precursor. The method yields crystalline nanoparticles of α-FeOhaving a spherical morphology with a diameter of 100 nm to 300 nm, a mean surface area of 240 to 250 m/g, and a type-II nitrogen adsorption-desorption BET isotherm with a H3 hysteresis loop. A method for the photocatalytic decomposition of organic pollutants using the nanoparticles is disclosed. An antibacterial composition containing the crystalline α-FeOnanoparticles is also disclosed.

Method for treating water contaminated with polycyclic organics

High surface area 3D mesoporous carbon nanocomposites can be derived from Zn dust and PET bottle mixed waste with a high surface area. Simultaneous transformation of Zn metal into ZnO nanoparticles and PET bottle waste to porous carbon materials can be achieved by thermal treatment at preferably 600 to 800° C., and reaction times of from 15 to 60 minutes, after optionally de-aerating the reaction mixtures with Ngas. The waste-based carbon materials can have surface areas of 650 to 725 m/g, e.g., 684.5 m/g and pore size distributions of 12 to 18 nm. The carbon materials may have 3D porous dense layers with a gradient pore structure, which may have enhanced photocatalytic performance for degrading, e.g., organic dyes, such as methylene blue and malachite green. Sustainable methods make ZnO-mesoporous carbon materials from waste for applications including photocatalysis, upcycling mixed waste materials.

Mesoporous zinc oxide graphite composite

An efficient photocatalyst nanocomposite comprising reduced graphene oxide, noble metal, and a metal oxide prepared by a one-step method that utilizes date seed extract as a reducing and nanoparticle determining size agent. The photocatalyst of the invention is a more effective sunlight photocatalyst than that prepared by traditional method in the photo decomposition of organic compounds in contaminated water.

Method of using gold/zinc/graphene oxide photocatalyst nanocomposite for water treatment

Method for making a photocatalyst and treating dye-contaminated water

Graphite composition based on PET pyrolysis product

A method for producing crystalline α-FeOnanoparticles involving ultrasonic treatment of a solution of an iron (III)-containing precursor and an extract from the seeds of a plant in the family Linaceae. The method involves preparing an aqueous extract from the seeds of a plant in the family Linacae and dropwise addition of the extract to the solution of an iron (III)-containing precursor. The method yields crystalline nanoparticles of α-FeOhaving a spherical morphology with a diameter of 100 nm to 300 nm, a mean surface area of 240 to 250 m/g, and a type-II nitrogen adsorption-desorption BET isotherm with a H3 hysteresis loop. A method for the photocatalytic decomposition of organic pollutants using the nanoparticles is disclosed. An antibacterial composition containing the crystalline α-FeOnanoparticles is also disclosed.

Method for treating polluted composition

Green synthesis method for making a photocatalyst nanocomposite

Method for making a gold/zinc/graphene oxide photocatalyst composite

Crystalline &#x3b1;-FeOnanoparticles prepared by ultrasonic treatment of a solution of an iron (III)-containing precursor and an extract from the seeds of a plant in the family Linaceae. The crystalline &#x3b1;-FeOnanoparticles have a spherical morphology with a diameter of 100 nm to 300 nm, a mean surface area of 240 to 260 m/g, and a type-II nitrogen adsorption-desorption BET isotherm with a H3 hysteresis loop. The crystalline &#x3b1;-FeOnanoparticles have a band gap of 2.10 to 2.16 eV and a mean pore size of 7.25 to 9.25 nm. A method for the photocatalytic decomposition of organic pollutants using the crystalline &#x3b1;-FeOnanoparticles. An antibacterial composition containing the crystalline &#x3b1;-FeOnanoparticles.

Crystalline &#x3b1;-FE2O3 nanoparticles and method of making and use thereof in photodegradation of organic pollutants, as a photocatalyst and as an antibacterial composition

Method for making a photocatalyst nanocomposite

An efficient green method for the synthesis of noble metal/transition metal oxide nanocomposite comprising reducing noble metal salt and a templating metal oxide is disclosed. The method is a one-step method comprises mixing coffee seed husk extract, a noble metal precursor, and a transition metal precursor; and filtering and drying the nanocomposite. The nanocomposite prepared by the method of the invention displays all the characteristics and biocidal activity of a composite prepared by traditional methods.

Method for making coffee husk reducing agent

Photocatalyst nanocomposite

A method for producing crystalline &#x3b1;-Fe2O3 nanoparticles involving ultrasonic treatment of a solution of an iron (III)-containing precursor and an extract from the seeds of a plant in the family Linaceae. The method involves preparing an aqueous extract from the seeds of a plant in the family Linaceae and dropwise addition of the extract to the solution of an iron (III)-containing precursor. The method yields crystalline nanoparticles of &#x3b1;-FeOhaving a spherical morphology with a diameter of 100 nm to 300 nm, a mean surface area of 240 to 250 m/g, and a type-II nitrogen adsorption-desorption BET isotherm with a H3 hysteresis loop. A method for the photocatalytic decomposition of organic pollutants using the nanoparticles is disclosed. An antibacterial composition containing the crystalline &#x3b1;-FeOnanoparticles is also disclosed.

Alpha-FE2O3 nanoparticles and method of making and use thereof in photodegradation of organic pollutants, as a photocatalyst and as an antibacterial composition

High surface area 3D mesoporous carbon nanocomposites can be derived from Zn dust and PET bottle mixed waste with a high surface area. Simultaneous transformation of Zn metal into ZnO nanoparticles and PET bottle waste to porous carbon materials can be achieved by thermal treatment at preferably 600 to 800&#xb0; C., and reaction times of from 15 to 60 minutes, after optionally de-aerating the reaction mixtures with Ngas. The waste-based carbon materials can have surface areas of 650 to 725 m/g, e.g., 684.5 m/g and pore size distributions of 12 to 18 nm. The carbon materials may have 3D porous dense layers with a gradient pore structure, which may have enhanced photocatalytic performance for degrading, e.g., organic dyes, such as methylene blue and malachite green. Sustainable methods make ZnO-mesoporous carbon materials from waste for applications including photocatalysis, upcycling mixed waste materials.

Growing community of inventors

Dammam, Saudi Arabia

Hanan Hussein Amin Mohamed