Magnetically separable Ag3PO4/NiFe2O4 composites with enhanced photocatalytic activity

Author(s): Santosh S. Patil ¹ ^, ² ^, ³ ^, ⁴ ^, ⁵ , Mohaseen S. Tamboli ¹ ^, ² ^, ³ ^, ⁴ ^, ⁵ , Virendrakumar G. Deonikar ¹ ^, ² ^, ³ ^, ⁴ ^, ⁵ , Govind G. Umarji ¹ ^, ² ^, ³ ^, ⁴ ^, ⁵ , Jalindar D. Ambekar ¹ ^, ² ^, ³ ^, ⁴ ^, ⁵ , Milind V. Kulkarni ¹ ^, ² ^, ³ ^, ⁴ ^, ⁵ , Sanjay S. Kolekar ⁶ ^, ⁷ ^, ⁸ ^, ⁹ ^, ⁵ , Bharat B. Kale ¹ ^, ² ^, ³ ^, ⁴ ^, ⁵ , Deepak R. Patil ¹ ^, ² ^, ³ ^, ⁴ ^, ⁵

Publication date (Electronic): 2015

Journal: Dalton Transactions

Publisher: Royal Society of Chemistry (RSC)

Read this article at

ScienceOpenPublisher

Bookmark

There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

Abstract

A step wise growth process of APO nuclei leads to developing interesting morphologies of APO/NFO composites.

Abstract

Magnetically separable Ag ₃PO ₄/NiFe ₂O ₄ (APO/NFO) composites were prepared by an in situ precipitation method. The photocatalytic activity of photocatalysts consisting of different APO/NFO mass ratios was evaluated by degradation of methylene blue (MB) under visible light irradiation. The excellent photocatalytic activity was observed using APO/NFO5 (5% NFO) composites with good cycling stability which is higher than that of pure Ag ₃PO ₄ and NiFe ₂O ₄. All the APO/NFO composites showed good magnetic behavior, which makes them magnetically separable after reaction and reusable for several experiments. Photoconductivities of pure and composite samples were examined to study the photoresponse characteristics. The current intensity greatly enhanced by loading NFO to APO. Furthermore, the photocatalytic performance of the samples is correlated with the conductivity of the samples. The enhancement in the photocatalytic activity of APO/NFO composites for MB degradation is attributed to the excellent conductivity of APO/NFO composites through the co-catalytic effect of NFO by providing accelerated charge separation through the n–n interface.

Related collections

Most cited references 26

Record: found
Abstract: found
Article: not found

Facet effect of single-crystalline Ag3PO4 sub-microcrystals on photocatalytic properties.

Yingpu Bi, Shuxin Ouyang, Naoto Umezawa … (2011)

We recently reported that Ag(3)PO(4) exhibits excellent photooxidative capabilities for O(2) evolution from water and organic dye decomposition under visible-light irradiation. However, very little is known about the shape and facet effects of Ag(3)PO(4) crystals on their photocatalytic properties. Herein we have developed a facile and general route for high-yield fabrication of single-crystalline Ag(3)PO(4) rhombic dodecahedrons with only {110} facets exposed and cubes bounded entirely by {100} facets. Moreover, studies of their photocatalytic performance have indicated that rhombic dodecahedrons exhibit much higher activities than cubes for the degradation of organic contaminants, which may be primarily ascribed to the higher surface energy of {110} facets (1.31 J/m(2)) than of {100} facets (1.12 J/m(2)). © 2011 American Chemical Society