DataVXACS Applied Materials & InterfacesPaper
journal article·2018-10-24Open access

Impact of Average, Local, and Electronic Structure on Visible Light Photocatalysis in Novel BiREWO6 (RE = Eu and Tb) Nanomaterials

Pradeep P. Shanbogh, Rajamani Raghunathan, Diptikanta Swain, Mikhail Feygenson, Joerg Neuefeind, Jasper Plaisier, Chandrabhas Narayana, Ashok Rao, Nalini G. Sundaram

ACS Applied Materials & Interfaces· Volume 10· Issue 42
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Source abstract

Abstract

Crystal structures of hydrothermally synthesized BiEuWO 6 and BiTbWO 6 nanomaterials are deduced for the first time by combined Rietveld refinement of neutron and synchrotron data using the ordered and disordered models available in literature. The ordered model is validated for the average structure of these nanomaterials, and it is further supported by the local structure analysis using neutron pair distribution function. Nanomaterials are characterized by field-emission scanning electron microscopy, transmission electron microscopy, Brunauer–Emmett–Teller surface area, diffused reflectance spectroscopy, and Raman Spectroscopy. Rare-earth-substituted nanomaterials are found to be efficient photocatalysts over the parent Bi 2 WO 6 under visible light irradiation for Congo-red dye degradation. Particularly, BiTbWO 6 shows an enhanced photocatalytic (PC) activity compared to BiEuWO 6, as evidenced from the photoelectrochemical and time-resolved fluorescence studies. The difference in the observed PC activity of these nanomaterials is also explored through a detailed comparison of crystal structure and electronic structure calculated through the density functional theory method.
Source: openalex_inverted_index · Quality: baseline

Research context

NanomaterialsCatalysis & surfaces

OpenAlex topics: Advanced Photocatalysis Techniques · Gas Sensing Nanomaterials and Sensors · Transition Metal Oxide Nanomaterials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Functional Energy Nanomaterials Group, Materials Sciences Division, Poornaprajna Institute of Scientific Research, Bengaluru 572064, India

Manipal Academy of Higher Education, Manipal 576104, Karnataka, India

UGC-DAE Consortium for Scientific Research, DAVV Campus, Khandwa Road, Indore 452001, India

Solid State and Structural Chemistry Unit, Indian Institute of Science, Benagluru 560012, India

Forschungszentrum Jülich, JCNS, Jülich D-52425, Germany

Chemical and Engineering Materials Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States

MCX Beamline, Elettra-Sincrotrone Trieste S.C.p.A., ss 14 km 163,5, Basovizza 34149, Trieste, Italy

Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru 560064, India

Department of Physics, Manipal Institute of Technology, Manipal 576104, Karnataka, India

Funding

Council of Scientific and Industrial Research

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