Preparation of Potassium-Posphate-embedded Amorphous Silicate Material from Rice Straw Waste

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 ; Purwanti, S.T.^1 ; Munawaroh, H.S.H.^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: Acid precipitation;    Amorphous silica;    Amorphous silicates;    Positive impacts;    Potassium hydroxide solution;    Potassium phosphate;    Rice straw ashes;    Silica material;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/180/1/012138/pdf
DOI  :  10.1088/1757-899X/180/1/012138

来源: IOP

【 摘 要 】

Rice straw is one of the agricultural wastes that increased every year. Since rice straw ash contains 74.6% of silica, this material is potentially used to produce silica. Thus, the purpose of this study was to investigate the possibility process for generating potassium-phosphate-embedded amorphous silica material. To extract silica from rice straw waste, we used potassium hydroxide solution followed by an acid precipitation treatment. Based on the experimental results, the proposed method is potential to be used as an alternative technique for getting silica material. In addition, the method has a positive impact on the environment because this is potential for reducing the amount of rice straw waste, whereas at the same time this provides an added value to the rice straw waste itself.