Photocatalyst of Perovskite CaTiO3 Nanopowder Synthesized from CaO derived from Snail Shell in Comparison with The Use of CaO and CaCO3

12th Joint Conference on Chemistry

Fatimah, I.^1 ; Rahmadianti, Y.^1 ; Pudiasari, R.A.^1

Chemistry Department, Universitas Islam Indonesia, Kampus Terpadu UII, Jl. Kaliurang KM 14, Sleman, Yogyakartam

555584, Indonesia^1

关键词: Calcium titanate;    Fourier transform infra reds;    Material preparation;    Material structure;    Perovskite CaTiO3;    Perovskite structures;    Photocatalytic activities;    X ray diffractometers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/349/1/012026/pdf
DOI  :  10.1088/1757-899X/349/1/012026

来源: IOP

【 摘 要 】

Calcium titanate belongs to the important group of compounds with a perovskite structure having high dielectric loss for various applications including photocatalysis mechanism. Refer to the principles of green chemistry, in this work preparation of CaTiO3was conducted by using CaO derived from snail shell. Aim of this research are to study the physicochemical character of perovskite derived from snail shell and its comparison with CaO and CaCO3as Ca sources. Material preparation was performed by solid reaction of Ca sources with TiO2under comparison with CaO and CaCO3precursors. Mixture of Ca sources with TiO2in certain proportion were ground and calcined at the temperature of 200 °C for 2 hs. Materials were characterized by using X-ray diffractometer (XRD), Fourier Transform-Infra Red (FTIR) and the photocatalytic activity was tested by using methylene blue photooxidation. Perovskite synthesized using CaO derived from snail shell exhibits the similar XRD pattern with that were prepared by using CaO and CaCO3. From the photooxidation activity test, it is proven that CaTiO3shows similar photocatalytic activity correspond to that were prepared by CaO and CaCO3. Utilazation of shell as agricultural waste of the synthesis of CaTiO3perovskite is the novelty of this work. Furthermore, the study on material structure and photoactivity is the main focuses for the application in industry and environment.