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research-article

Tuning the Photocatalytic Performance of Tungsten Oxide by Incorporating Cu3V2O8 Nanoparticles for H2 Evolution Under Visible Light Irradiation

[+] Author and Article Information
Muhammad Bilal Tahir

Muhammad Bilal Tahir, Office S-109, Department of Physics University of Gujrat, Gujrat Pakistan Gujart, PA 50700 Pakistan m.bilaltahir@uog.edu.pk

Tahir Iqbal

Office S-108, Department of Physics University of Gujrat, Gujrat Pakistan Gujart, PA 50700 Pakistan tahir.awan@uog.edu.pk

I. Zeba

Department of Physics, Lahore College for Women University, Lahore, Pakistan Lahore, Punjab 33700 Pakistan 16101710-004@uog.edu.pk

A. Hasan

Office S-111, Department of Physics University of Gujrat, Gujrat Pakistan Gujart, PA 50700 Pakistan alishahg4@gmail.com

Shabbir Muhammad

Department of Physics, college of Science, King Khalid University, Abha, 61413, P.O.Box 9004, Saudi Arabia Abha, Saudi Arabia 61413 Saudi Arabia mshabbir@kku.edu.sa

Saifeldin M. Siddeeg

Department of Chemistry, College of Science, King Khalid University, Abha, 61413, P.O. Box 9004, Saudi Arabia Abha, Saudi Arabia 61413 Saudi Arabia saif.siddeeg@gmail.com

Khurram Shahzad

Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, 21589, Saudi Arabia Jeddah, Saudi Arabia 21589 Saudi Arabia shahzadkhu@gmail.com

1Corresponding author.

Manuscript received November 22, 2018; final manuscript received April 3, 2019; published online xx xx, xxxx. Assoc. Editor: Nianqiang Wu.

ASME doi:10.1115/1.4043491 History: Received November 22, 2018; Accepted April 06, 2019

Abstract

The green energy production through water splitting under visible light irradiation has become emerging challenge in 21st century. Photocatalysis, being a cost competitive and efficient technique has grabbed much more attention for environmental applications, especially for hydrogen evolution. In this article, the hybrid Cu3V2O8-WO3 nanostructures were prepared through hydrothermal method by using copper acetate, ammonium metavanadate and Na2WO4.2H2O as precursors. The varying contents of Cu3V2O8 in WO3 were 0.2, 0.5, 1.0, 2.0 and 3.0 %. The XRD, SEM, BET, UV-Vis and PL emission spectroscopy were used to investigate the structural, morphological, surface area and optical properties of prepared samples. The average crystalline size of pure WO3 is ranging 10-15 nm and 70-195 nm for optimal composite sample. The structural phase of hybrid WO3-Cu3V2O8 nanoparticles was found to transfer from monoclinic to hexagonal by incorporates the Cu3V2O8 contents. The enhanced photocatalytic performance for hydrogen evolution was observed for 2% Cu3V2O8-WO3 composite sample. The key to this enhancement lies at the heterojunction interface, where charge separation occurs. Additionally, the excellent photocatalytic activity was attributed to higher surface area, efficient charge separation and extended visible light absorption. This work will provide an in-depth understanding of efficient separation of charge carriers and transfer processes and steer charge flow for efficient solar-to-chemical energy applications.

Copyright © 2019 by ASME
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