One pot synthesis of Ag nanoparticle modified ZnO microspheres in ethylene glycol medium and their enhanced photocatalytic performance

Journal Article · Mon Nov 15 00:00:00 EST 2010 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2010.09.020· OSTI ID:21494127

Chungui, Tian; Wei, Li; Kai, Pan; Qi, Zhang; Guohui, Tian; Wei, Zhou ^[1]

---

1. Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080 (China)

Ag nanoparticles (NPs) modified ZnO microspheres (Ag/ZnO microspheres) were prepared by a facile one pot strategy in ethylene glycol (EG) medium. The EG played two important roles in the synthesis: it could act as a reaction media for the formation of ZnO and reduce Ag{sup +} to Ag{sup 0}. A series of the characterizations indicated the successful combination of Ag NPs with ZnO microspheres. It was shown that Ag modification could greatly enhance the photocatalytic efficiency of ZnO microspheres by taking the photodegradation of Rhodamine B as a model reaction. With appropriate ratio of Ag and ZnO, Ag/ZnO microspheres showed the better photocatalytic performance than commercial Degussa P-25 TiO{sub 2}. Photoluminescence and surface photovoltage spectra demonstrated that Ag modification could effectively inhibit the recombination of the photoinduced electron and holes of ZnO. This is responsible for the higher photocatalytic activity of Ag/ZnO composites. -- Graphical abstract: A 'one-pot' strategy was developed for preparing the Ag/ZnO microspheres in ethylene glycol. The composites exhibited superior photocatalytic performance for photodegradation of Rhodamine B dye in water. Display Omitted

• OSTI ID: 21494127
• Journal Information: Journal of Solid State Chemistry, Vol. 183, Issue 11; Other Information: DOI: 10.1016/j.jssc.2010.09.020; PII: S0022-4596(10)00414-7; Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
EFFICIENCY
ELECTRONS
GLYCOLS
HOLES
MICROSPHERES
NANOSTRUCTURES
PERFORMANCE
PHOTOCATALYSIS
PHOTOLUMINESCENCE
SILVER
SILVER IONS
SPECTRA
SURFACES
SYNTHESIS
TITANIUM OXIDES
ZINC OXIDES
ALCOHOLS
CATALYSIS
CHALCOGENIDES
CHARGED PARTICLES
ELEMENTARY PARTICLES
ELEMENTS
EMISSION
FERMIONS
HYDROXY COMPOUNDS
IONS
LEPTONS
LUMINESCENCE
METALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOTON EMISSION
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
ZINC COMPOUNDS