title: A novel strategy to fabricate multifunctional Fe3O4@C@TiO2 yolk-shell structures as magnetically recyclable photocatalysts.
abstract: Using poly(acrylic acid) (PAA) as a template, a novel Fe3O4@C@TiO2 yolk-shell structure derived from heat treatment on Fe2O3@PAA@TiO2 core-shell structures is constructed, where the interior void volume and shell thickness are readily tuned. In this method, the PAA shell between the original spherical α-Fe2O3 nanoparticle (NP) core and the outer TiO2 shell replaces the common SiO2 template leaving out the tedious treatment procedure of the template. After calcination, the α-Fe2O3 core was reduced to the Fe3O4 core providing the NPs with magnetic properties and the middle carbon coating around the magnetic core could avoid the occurrence of photodissolution. Moreover, the obtained Fe3O4@C@TiO2 yolk-shell nanocomposites (NCs) exhibit fine photocatalytic activity for the photodegradation of organic contaminants in waste water.
authors.affiliation: Faculty of Chemistry, Northeast Normal University, Changchun, 130024, P.R. China. wangcg925@nenu.edu.cn xingsx737@nenu.edu.cn.
authors.forename: Lulu
authors.initials: L
authors.lastname: Chen
authors.forename: Lu
authors.initials: L
authors.lastname: Li
authors.forename: Tingting
authors.initials: T
authors.lastname: Wang
authors.forename: Lingyu
authors.initials: L
authors.lastname: Zhang
authors.forename: Shuangxi
authors.initials: S
authors.lastname: Xing
authors.forename: Chungang
authors.initials: C
authors.lastname: Wang
authors.forename: Zhongmin
authors.initials: Z
authors.lastname: Su
mesh_terms: D002384:Catalysis; D008027:Light; D058185:Magnetite Nanoparticles / Q000737:chemistry* / Q000528:radiation effects / Q000648:ultrastructure*; D008422:Materials Testing; D053761:Nanocomposites / Q000737:chemistry / Q000648:ultrastructure; D009930:Organic Chemicals / Q000737:chemistry / Q000302:isolation & purification* / Q000528:radiation effects; D010316:Particle Size; D010777:Photochemistry / Q000379:methods*; D016062:Porosity; D059027:Recycling / Q000379:methods; D014025:Titanium / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000737:chemistry / Q000302:isolation & purification* / Q000528:radiation effects; D018508:Water Purification / Q000379:methods*
chemical_list: D058185:Magnetite Nanoparticles; D009930:Organic Chemicals; D014874:Water Pollutants, Chemical; C009495:titanium dioxide; D014025:Titanium