Imam Abdulrahman Bin Faisal University

Sultan Akhtar

Ayhan Bozkurt

Seyda Tugba Gunday Anil

Firdos Alam Khan

Hanan Hussein Amin Mohamed

Munirah Abdullah Almessiere

Nuhad Abdullah Alomair

Aamerah Abdulwahab Alsanea

A method for forming hollow silica spheres by dissolving a hydrolyzable aryl silane in an aqueous solution of water and an acid to form a hydrolyzed silane solution, mixing the hydrolyzed silane solution with a hydroxide base to form a precipitate, and calcining the precipitate in a multi-stage calcination procedure that includes (a) heating to a first temperature of 180 to 240° C. with a first ramp rate of 3 to 10° C./min and holding the first temperature for 2 minutes to 2 hours, then (b) heating to a second temperature of 600 to 740° C. at a second ramp rate of 0.1 to 4° C./min, and holding the second temperature for 2 to 24 hours.

Hydrolytic and calcination method for forming hollow silica particles

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

The invention pertains to a method for treating a neoplasm, such as colorectal cancer, using hollow silica spheres ('HSS'). It also is directed to a method for making uncalcined HSS, calcined HSS from which phenyl groups have been removed, and HSS incorporating particles of FeO, as well as compositions containing HSS.

Hollow silica spheres with nested iron oxide particles

Method for making solid silica spheres

Multistage calcination method for making hollow silica spheres

Graphite composition based on PET pyrolysis product

Water-based hydrolysis method for forming hollow particles

Treatment method for colon cancer

Method for treating neoplasms using hollow silica spheres

A method for forming hollow silica spheres by dissolving a hydrolyzable aryl silane in an aqueous solution of water and an acid to form a hydrolyzed silane solution, mixing the hydrolyzed silane solution with a hydroxide base to form a precipitate, and calcining the precipitate in a multi-stage calcination procedure that includes (a) heating to a first temperature of 180 to 240&#xb0; C. with a first ramp rate of 3 to 10&#xb0; C./min and holding the first temperature for 2 minutes to 2 hours, then (b) heating to a second temperature of 600 to 740&#xb0; C. at a second ramp rate of 0.1 to 4&#xb0; C./min, and holding the second temperature for 2 to 24 hours.

Multi-stage calcination method for making hollow silica spheres

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.

ZnO-porous graphite composites, their use and manufacture

Growing community of inventors

Dammam, Saudi Arabia

Sultan Akhtar