Open AccessThe effect of Fe3O4 concentration to photocatalytic activity of Fe3O4@TiO2-PVP core-shell nanocomposite
Author(s) -
Sunaryono Sunaryono,
Dita Fitriana,
L R Novita,
Muchlis Fajar Hidayat,
H Hartatiek,
Nandang Mufti,
Ahmad Taufiq
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1595/1/012003
Subject(s) - photocatalysis , congo red , nanocomposite , materials science , photodegradation , fourier transform infrared spectroscopy , nuclear chemistry , silver bromide , coprecipitation , scanning electron microscope , nanoparticle , chemical engineering , analytical chemistry (journal) , nanotechnology , chemistry , composite material , catalysis , adsorption , chromatography , organic chemistry , engineering , layer (electronics) , silver halide
A study on the preparation of Congo red textile dyes using nanocatalysts, Fe 3 O 4 @TiO 2 material, and Polyvinyl Pyrrolidone (PVP) has been successfully carried out. The preparation of these dyes is intended as a controller of the shape and size of particles and as a superior adhesive in solution. Fe 3 O 4 @TiO 2 core-shell (FTP) nanocomposite was carried out by coprecipitation method. The Fe 3 O 4 nanoparticles were designed as cores that were synthesized from Cilacap iron sand, while TiO 2 nanoparticles were selected as a shell through the synthesis of Titanium (III) chloride. Fe 3 O 4 @TiO 2 core-shell nanocomposite is characterized using X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Fourier Transform Infrared (FTIR), and UV-Visible Spectroscopic (UV-Vis). Through XRD data analysis, the crystalline nano-phase composite of Fe 3 O 4 @TiO 2 core-shell did not experience significant changes with the addition of Fe 3 O 4 concentration. The contribution of the addition of Fe 3 O 4 concentration can be observed in changes in sample grain size. The higher the concentration of Fe 3 O 4 is, the smaller the grain size of the samples produced, ranging between 6-9 nm and can increase the percentage of degradation of Congo red dyes. In addition, optimum degradation in UV-Vis characterization occurred in FTP 0.5 samples that reached 78.20% at minute 100. The photodegradation effect that occurs in Congo red dyes is caused by photocatalytic mechanisms.