Promotion effect of Pd on TiO2 for visible light photocatalytic degradation of gaseous formaldehyde.
TiO2 and Pd doped TiO2 (Pd/TiO2) nanoparticles were prepared by sol gel method. Pd/TiO2 material was characterized by XRD, TEM, TPR, XPS and BET. From XRD data, the crystalline type of TiO2 is known to as Anatase type. TiO2 and Pd/TiO2 were in the order of 9-10 nm and 10-13 nm respectively. The photocatalytic activities of the TiO2 and Pd/TiO2 nanomaterials were evaluated and compared for the photodegradation of formaldehyde (HCHO). HCHO degradation on Pd/TiO2 catalyst, at 60 min, the degradation rate of gaseous HCHO is 95%. Using Pd/TiO2, the rate was faster than TiO2 or doped with other metals (Au/TiO2; Ag/TiO2; Pt/TiO2).
Ren-Jang
RJ
Wu
Yung-Shiuan
YS
Liu
Hsiao-Fang
HF
Lai
Jhe-Hao
JH
Wang
Murthy
M
Chavali
D005557:Formaldehyde / Q000032:analysis / Q000737:chemistry*; D005740:Gases / Q000032:analysis / Q000737:chemistry*; D008027:Light; D053768:Metal Nanoparticles / Q000737:chemistry*; D010165:Palladium / Q000737:chemistry*; D010782:Photolysis; D014025:Titanium / Q000737:chemistry*
D005740:Gases; C009495:titanium dioxide; D005557:Formaldehyde; D010165:Palladium; D014025:Titanium