Morphological, structural and optical properties of dye-doped graphene-supported TiO2 nanotubes for solar water splitting applications

Author:

Asif Javed Hafiz Muhammad1,Hameed Areesha1,Afzaal M.2,Sarfaraz Muhammad1,Khan M. Ijaz34ORCID,Ahmed Arslan5,Arif Muhammad6,Alnuwaiser Maha Abdallah7,Javaid Muhammad Yasar8,Ghani M. Usman1,Khan Sajjad Ahmad9

Affiliation:

1. Nanomaterials and Solar Energy Research Laboratory, Department of Physics, University of Agriculture Faisalabad 38000, Faisalabad, Pakistan

2. Department of Physics, Riphah International University, Faisalabad Campus, Pakistan

3. Department of Mathematics and Statistics, Riphah International University I-14, Islamabad 44000, Pakistan

4. Department of Mechanical Engineering, Lebanese American University, Beirut, Lebanon

5. Department of Mechanical Engineering, COMSATS University Islamabad, Wah Campus, Pakistan

6. NFC Institute of Engineering and Fertilizer Research, Faisalabad, Pakistan

7. Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, P. O. Box 84428, Riyadh 11671, Saudi Arabia

8. Department of Mechanical Engineering Technology, GC University Faisalabad, Faisalabad, Pakistan

9. Institute of Physics, Khwaja Fareed University of Engineering, and Information Technology, Rahim Yar Khan, Pakistan

Abstract

Solar water splitting has attained much attention in recent years for renewable and clean production of hydrogen from water under irradiation by sunlight. Solar water splitting has been progressively at the forefront of chemical research and also provides a promising path for sustainable hydrogen production. TiO2 has a wide range of applications and is considered as one of the most propitious semiconductors due to its photo-stability, low price and chemical stability. TiO2 nanotubes have been prepared by using electrochemical anodization method followed by organic dye deposited onto the TiO2 nanotubes. rGO-supported TiO2 nanotubes and dye-doped graphene-supported TiO2 nanotubes show more efficient behavior for water splitting as compared to pure TiO2 nanotubes. The surface morphology, elemental composition, structure and size of the nanocrystalline TiO2 nanotubes and dye-doped graphene-supported TiO2 nanotubes were examined by using SEM, XRD, EDX and UV/Visible spectroscopy, respectively. Dye-doped graphene-supported TiO2 nanotubes have been utilized for efficient solar water splitting.

Funder

Higher Education Commission (HEC) of Pakistan

Princess Nourah bint Abdulrahman University Researchers Supporting Project Number

Publisher

World Scientific Pub Co Pte Ltd

Subject

Condensed Matter Physics,Statistical and Nonlinear Physics

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