Published April 2018 | Version v1
Journal article Metadata-only

Photocatalytic removal of NOx over immobilized BiFeO3 nanoparticles and effect of operational parameters

Creators

  • 1. University of Tabriz, Research Laboratory of Petroleum Technology, Faculty of Chemistry (Iran, Islamic Republic of)
  • 2. University of Urmia, Department of Applied Chemistry, Faculty of Chemistry (Iran, Islamic Republic of)
  • 3. Chung Shan Medical University, School of Occupational Safety and Health (China)
  • 4. University of Tabriz, Research Laboratory of Reactor and Catalyst, Faculty of Chemical Engineering (Iran, Islamic Republic of)

Description

Perovskite type BiFeO3 (BFO) was synthesized by sol-gel auto-combustion method. Synthesized BFO was immobilized on the micro slides glass plates by sol-gel dip-coating method. The sample was characterized by XRD, FESEM, UV-Vis DRS, and BET techniques. The XRD pattern confirmed the perovskite structure, and from the Debye-Scherrer equation the average crystalline size was calculated as 19 nm. The FE-SEM images of prepared BFO showed porous structure with low agglomeration. The band gap energy was calculated about 2.13 eV, and the specific surface area (SSA) of prepared BFO nanostructure was obtained 55.1m2 g−1. The photocatalytic activity of prepared pure and immobilized BFO was investigated in the removal of NOx under UV irradiation, in the batch photoreactor. The effects of operational parameters such as initial concentration of NOx, light intensity and amount of coated photocatalyst, under identical conditions, were investigated. The results showed that the highest conversion of NOx was obtained as 35.83% in the 5 ppm of NOx with 1.2 g immobilized BFO and under 15 W illumination lamp.

Additional details

Identifiers

DOI
10.1007/s11814-017-0331-7;

Publishing Information

Journal Title
Korean Journal of Chemical Engineering
Journal Volume
35
Journal Issue
4
Journal Page Range
p. 994-999
ISSN
0256-1115

INIS

Country of Publication
Korea, Republic of
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
51020560
Subject category
S77: NANOSCIENCE AND NANOTECHNOLOGY;
Descriptors DEI
AGGLOMERATION; COMBUSTION; CONCENTRATION RATIO; DIP COATING; FERRITES; GLASS; ILLUMINANCE; NANOPARTICLES; NANOSTRUCTURES; PEROVSKITE; PHOTOCATALYSIS; POROUS MATERIALS; REMOVAL; SCANNING ELECTRON MICROSCOPY; SOL-GEL PROCESS; SPECIFIC SURFACE AREA; X-RAY DIFFRACTION
Descriptors DEC
CATALYSIS; CHEMICAL REACTIONS; COHERENT SCATTERING; DEPOSITION; DIFFRACTION; DIMENSIONLESS NUMBERS; ELECTRON MICROSCOPY; FERRIMAGNETIC MATERIALS; IRON COMPOUNDS; MAGNETIC MATERIALS; MATERIALS; MICROSCOPY; MINERALS; OXIDATION; OXIDE MINERALS; OXYGEN COMPOUNDS; PARTICLES; PEROVSKITES; PHYSICAL PROPERTIES; SCATTERING; SURFACE COATING; THERMOCHEMICAL PROCESSES; TRANSITION ELEMENT COMPOUNDS

Optional Information

Copyright
Copyright (c) 2018 Korean Institute of Chemical Engineers, Seoul, Korea