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63528

Enhancement of Photocatalytic Activity for Nanostructured ZnO Thin Film Prepared by Pulsed Spray Pyrolysis

Article

Last updated: 22 Jan 2023

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Subjects

-

Tags

Physical chemistry

Abstract

Simple pulsed spray pyrsolysis (PSP) technique is used to prepare pure nanostructured zinc oxide (ZnO) thin films at different deposition temperatures and spraying times on glass substrates. XRD measurements show polycrystalline ZnO hexagonal wurtzite phase preferably oriented perpendicular through c- axis along (002) plane. SEM images demonstrate the formation of highly ordered hexagonal nanorods with a crystallite sizes ranged from 40 to 500 nm depending on the film thickness. Optical measurements show transmittance of nearly 90% at low thicknesses (189.1µm) and about 60% for higher thickness (233.8 µm) with a calculated energy band gap values spanning from 2.85 to 3.20 eV. Photocatalytic activity is performed on selected ZnO samples have highly oriented nanorods with large hexagonal cross-section area. Photocatalytic activity takes place on etched and as prepared ZnO film samples by monitoring photodegradation process of methylene blue MB using double beam spectrophotometer. Etched samples show higher photo activity than non- etched ones.

DOI

10.21608/ejchem.2019.19253.2181

Keywords

ZnO thin films, pulsed spray pyrolysis (PSP) technique, selective etching, methylene blue (MB), photocatalysis

Authors

First Name

Mohamed

Last Name

Obaida

MiddleName

-

Affiliation

Solid State Physics Department, Physics Division, National Research Centre, 33 El Bohouth st. (former El Tahrir st.) - Dokki - Giza - P.O. 12622 - Egypt.

Email

mohamed.obaida@rub.de

City

-

Orcid

0000-0002-4499-5041

First Name

Ibarhim

Last Name

Moussa

MiddleName

-

Affiliation

Solid State Physics Department, Physics Division, National Research Centre, 33 El Bohouth st. (former El Tahrir st.) - Dokki - Giza - P.O. 12622 - Egypt.

Email

im.moussa@nrc.sci.eg

City

-

Orcid

-

First Name

Shimaa

Last Name

Hassan

MiddleName

-

Affiliation

Solid State Physics Department, Physics Division, National Research Centre, 33 El Bohouth st. (former El Tahrir st.) - Dokki - Giza - P.O. 12622 - Egypt.

Email

shimaaaone@yahoo.com

City

-

Orcid

-

First Name

Hassan

Last Name

Afify

MiddleName

-

Affiliation

Solid State Physics Department, Physics Division, National Research Centre, 33 El Bohouth st. (former El Tahrir st.) - Dokki - Giza - P.O. 12622 - Egypt.

Email

hassanafify@ymail.com

City

-

Orcid

-

First Name

Ahmed

Last Name

Abouelsayed

MiddleName

-

Affiliation

Spectroscopy Department, Physics Division, National Research Centre, 33 El Bohouth st. (former El Tahrir St.) - Dokki - Giza - P.O. 12622 - Egypt.

Email

as.abouelsayed@gmail.com

City

Giza

Orcid

0000-0003-0991-7352

Volume

63

Article Issue

6

Related Issue

10592

Issue Date

2020-06-01

Receive Date

2019-11-08

Publish Date

2020-06-01

Page Start

2,331

Page End

2,344

Print ISSN

0449-2285

Online ISSN

2357-0245

Article File

EJCHEM_Volume 63_Issue 6_Pages 2331-2344.pdf

PDF . 2.9MB

Link

https://ejchem.journals.ekb.eg/article_63528.html

Detail API

https://ejchem.journals.ekb.eg/service?article_code=63528

Order

25

Type

Original Article

Type Code

297

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

MainTitle

-

Details

Type

Article

Created At

22 Jan 2023