title: Regeneration of nano-ZnO photocatalyst by the means of soft-mechanochemical ion exchange method.
abstract: Nano-crystalline ZnO particles synthesized via an ion exchange method were used in a methyl-orange photocatalytic degradation process. An ion exchange resin mixed bed system was used in the suspension for separation of nano-ZnO and methyl-orange after photocatalysis reaction. Ion exchange resin, photocatalyst and water were mixed evenly by airflow. Nano-ZnO photocatalyst and soluble carboxyl zinc were gathered in the soft-mechanochemical process simultaneously. Ion exchange reaction ZnO photocatalyst and counterion transfer process on resin were all improved. Byproducts and other inorganic ions were transfered into resin phase. Nano-ZnO photocatalyst can be regenerated and reused.
authors.affiliation: College of Environmental and Chemical Engineering, Dalian Jiaotong University, Dalian 116028, China; Liaoning Key Laboratory for fabrication and Application of Super-fine Inorganic Powders, Dalian 116028, China. hjx@djtu.edu.cn
authors.forename: Yansheng
authors.initials: Y
authors.lastname: Li
authors.affiliation: College of Environmental and Chemical Engineering, Dalian Jiaotong University, Dalian 116028, China.
authors.forename: Zhenhua
authors.initials: Z
authors.lastname: Jiao
authors.affiliation: College of Environmental and Chemical Engineering, Dalian Jiaotong University, Dalian 116028, China.
authors.forename: Nan
authors.initials: N
authors.lastname: Yang
authors.affiliation: Liaoning Key Laboratory for fabrication and Application of Super-fine Inorganic Powders, Dalian 116028, China.
authors.forename: Hong
authors.initials: H
authors.lastname: Gao
mesh_terms: D001391:Azo Compounds / Q000737:chemistry; D002384:Catalysis / Q000528:radiation effects; D003116:Color; D007474:Ion Exchange; D008027:Light; D055595:Mechanical Phenomena; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D011208:Powders; D013056:Spectrophotometry, Ultraviolet; D015034:Zinc Oxide / Q000737:chemistry*
chemical_list: D001391:Azo Compounds; D011208:Powders; C100258:methyl orange; D015034:Zinc Oxide