title: AgI/TiO2 nanobelts monolithic catalyst with enhanced visible light photocatalytic activity.
abstract: AgI nanoparticles (NPs) have been decorated on the TiO2 nanobelts (NBs) immobilized on a metal Ti substrate by a simple impregnating-precipitation method. The as-achieved AgI/TiO2 monolithic catalyst exhibits a high and stable visible photocatalytic activity toward acid orange II (AO-II) degradation, which is attributed to the suitable energy band match of AgI NPs and TiO2 NBs, leading to the efficient transfer of photo-generated electrons. In addition, it was found that ·O2(-) radicals and h(+) are the main reactive species for the degradation of AO-II under visible light irradiation. A reasonable photocatalytic mechanism of AgI/TiO2 photocatalyst toward AO-II degradation was discussed. This monolithic catalyst provides an advantage over the drawback encountered with powder suspension.
authors.affiliation: School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
authors.forename: Junhui
authors.initials: J
authors.lastname: Yi
authors.affiliation: School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
authors.forename: Lingling
authors.initials: L
authors.lastname: Huang
authors.affiliation: School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
authors.forename: Hongjuan
authors.initials: H
authors.lastname: Wang
authors.affiliation: School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
authors.forename: Hao
authors.initials: H
authors.lastname: Yu
authors.affiliation: School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China. Electronic address: cefpeng@scut.edu.cn.
authors.forename: Feng
authors.initials: F
authors.lastname: Peng
mesh_terms: D001391:Azo Compounds / Q000737:chemistry*; D002384:Catalysis; D004563:Electrochemistry / Q000379:methods; D004583:Electrons; D004784:Environmental Monitoring / Q000379:methods; D052918:Environmental Restoration and Remediation; D006878:Hydroxides / Q000737:chemistry; D007454:Iodides / Q000737:chemistry*; D008027:Light; D008855:Microscopy, Electron, Scanning; D053758:Nanoparticles / Q000737:chemistry; D036103:Nanotechnology / Q000379:methods; D009281:Naphthalenes / Q000737:chemistry*; D010777:Photochemistry / Q000379:methods*; D017680:Potassium Compounds / Q000737:chemistry; D011208:Powders; D018030:Silver Compounds / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry; D014874:Water Pollutants, Chemical; D018508:Water Purification; D014961:X-Ray Diffraction
chemical_list: C456587:Acid Orange II; D001391:Azo Compounds; D006878:Hydroxides; D007454:Iodides; D009281:Naphthalenes; D017680:Potassium Compounds; D011208:Powders; D018030:Silver Compounds; D014874:Water Pollutants, Chemical; C009495:titanium dioxide; C030584:silver iodide; D014025:Titanium; C029943:potassium hydroxide
keywords: AgI/TiO(2); Monolithic catalyst; Photocatalyst; Photodegradation; Visible light