title: Photocatalytic degradation of DIPA using bimetallic Cu-Ni/TiO2 photocatalyst under visible light irradiation.
abstract: Bimetallic Cu-Ni/TiO2 photocatalysts were synthesized using wet impregnation (WI) method with TiO2 (Degussa-P25) as support and calcined at different temperatures (180, 200, and 300°C) for the photodegradation of DIPA under visible light. The photocatalysts were characterized using TGA, FESEM, UV-Vis diffuse reflectance spectroscopy, fourier transform infrared spectroscopy (FTIR) and temperature programmed reduction (TPR). The results from the photodegradation experiments revealed that the Cu-Ni/TiO2 photocatalysts exhibited much higher photocatalytic activities compared to bare TiO2. It was found that photocatalyst calcined at 200°C had the highest photocatalyst activities with highest chemical oxygen demand (COD) removal (86.82%). According to the structural and surface analysis, the enhanced photocatalytic activity could be attributed to its strong absorption into the visible region and high metal dispersion.
authors.affiliation: Chemical Engineering Department, Universiti Teknologi PETRONAS, 31750 Tronoh, Malaysia ; COMSATS Institute of Information Technology, Tobe Camp, University Road, Abbottabad 22060, Pakistan.
authors.forename: Nadia
authors.identifier: 0000-0002-0931-1089
authors.initials: N
authors.lastname: Riaz
authors.affiliation: Chemical Engineering Department, Universiti Teknologi PETRONAS, 31750 Tronoh, Malaysia.
authors.forename: Mohamad Azmi
authors.initials: MA
authors.lastname: Bustam
authors.affiliation: Fundamental & Applied Sciences Department, Universiti Teknologi PETRONAS, 31750 Tronoh, Malaysia.
authors.forename: Fai Kait
authors.initials: FK
authors.lastname: Chong
authors.affiliation: Chemical Engineering Department, Universiti Teknologi PETRONAS, 31750 Tronoh, Malaysia.
authors.forename: Zakaria B
authors.initials: ZB
authors.lastname: Man
authors.affiliation: COMSATS Institute of Information Technology, Tobe Camp, University Road, Abbottabad 22060, Pakistan ; Fundamental & Applied Sciences Department, Universiti Teknologi PETRONAS, 31750 Tronoh, Malaysia.
authors.forename: Muhammad Saqib
authors.initials: MS
authors.lastname: Khan
authors.affiliation: Chemical Engineering Department, Universiti Teknologi PETRONAS, 31750 Tronoh, Malaysia.
authors.forename: Azmi M
authors.initials: AM
authors.lastname: Shariff
mesh_terms: D002384:Catalysis; D003300:Copper / Q000737:chemistry*; D009532:Nickel / Q000737:chemistry*; D010777:Photochemistry / Q000379:methods*; D000644:Quaternary Ammonium Compounds / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry*
chemical_list: D000644:Quaternary Ammonium Compounds; C009495:titanium dioxide; C001002:diisopropylamine dichloroacetate; D003300:Copper; D009532:Nickel; D014025:Titanium
references.citation: J Environ Sci Health A Tox Hazard Subst Environ Eng. 2004;39(10):2583-95
references.pmid: 15509010
references.citation: J Hazard Mater. 2009 Jun 15;165(1-3):306-16
references.pmid: 19013714