Synthesis of Potassium Silicate Nanoparticles from Rice Straw Ash Using a Flame-assisted Spray-pyrolysis Method

1st Annual Applied Science and Engineering Conference

工业技术;自然科学

Nandiyanto, A.B.D.^1 ; Permatasari, N.^1 ; Sucahya, T.N.^1 ; Abdullah, A.G.^2 ; Hasanah, L.^3

Departemen Kimia, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi no 229, Jawa Barat, Bandung

40154, Indonesia^1

Departemen Pendidikan Teknik Elektro, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi no 229, Jawa Barat, Bandung

40154, Indonesia^2

Departemen Fisika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi no 229, Jawa Barat, Bandung

40154, Indonesia^3

关键词: Alkaline chemical agents;    Alkaline methods;    Experimental procedure;    Flame-assisted spray pyrolysis;    Potassium silicates;    Rice straw ashes;    Rice straws;    Spray method;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/180/1/012133/pdf
DOI  :  10.1088/1757-899X/180/1/012133

来源: IOP

【 摘 要 】

The purpose of this study was to synthesize potassium silicate nanoparticles from rice straw ash using a flame-assisted spray-pyrolysis method. Rice straw, as one of the agricultural wastes, was used as a source of silica. In the experimental procedure, rice straw was burned at 700°C for 3 hours to produce rice straw ash. Then, the rice straw ash was extracted using an alkaline method. We used potassium hydroxide (KOH) as an alkaline chemical agent as well as a source of potassium. The solution was then put into the flame-assisted spray-pyrolysis apparatus to produce potassium silicate nanoparticles. The results showed that the spray method can assist the production of spherical potassium silicate nanoparticles with sizes of about 50 nm.