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Highly Crystalline Ordered Cu-dopedTiO2Nanostructure by Paper Templated Method: Hydrogen Production and Dye Degradation under Natural Sunlight

1
Centre for Materials for Electronics Technology (C-MET), Ministry of Electronics and Information Technology (MeitY), Government of India, Panchawati off Pashan Road, Pune 411008, India
2
Department of Chemistry, BaburaojiGholap College, Sangavi, Pune 411027, India
*
Author to whom correspondence should be addressed.
J. Compos. Sci. 2020, 4(2), 48; https://doi.org/10.3390/jcs4020048
Received: 13 March 2020 / Revised: 6 April 2020 / Accepted: 9 April 2020 / Published: 4 May 2020
(This article belongs to the Special Issue Composite Nanostructures for Energy and Environment Applications)
A highly crystalline ordered Cu-TiO2 nanostructure was synthesized using a simple paper template method using cupric nitrate and titanium isopropoxide as precursors. The structural study by XRD confirmed the formation of highly crystalline anatase phase of Cu-TiO2. The broad diffraction peaks of Cu-TiO2 exhibit the nanocrystalline nature of the product. The optical study by UV-DRS indicated the red shift in absorption wavelength with an increase in Cu doping, i.e., towards the visible region. The FE-SEM and FE-TEM study validated the formation of spherical shaped nanoparticles of Cu-TiO2 having sizes in the range of 20–30 nm. Considering the absorption in the visible region, the photocatalytic study was performed for water splitting and rhodamine-B (RhB) dye degradation under natural sunlight. The 2% Cu-doped TiO2 showed the highest photocatalytic hydrogen evolution, i.e., 1400 µmol·g−1·h−1 from water, among the prepared compositions. The photocatalytic performance of Cu-TiO2 conferred complete degradation of RhB dye within 40 min. The higher activity in both cases was attributed to the formation of highly crystalline ordered nanostructure of Cu-doped TiO2. This synthesis approach has potential to prepare other highly crystalline ordered nanostructured semiconductors for different applications. View Full-Text
Keywords: template synthesis; photocatalysis; H2 generation; dye degradation template synthesis; photocatalysis; H2 generation; dye degradation
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MDPI and ACS Style

Kale, G.; Arbuj, S.; Chothe, U.; Khore, S.; Nikam, L.; Kale, B. Highly Crystalline Ordered Cu-dopedTiO2Nanostructure by Paper Templated Method: Hydrogen Production and Dye Degradation under Natural Sunlight. J. Compos. Sci. 2020, 4, 48.

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