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8112

KEGGIN HETEROPOLY ACIDS AS AN EFFICIENT CATALYSTS FOR PHOTOCATALYTIC OXIDATION OF AROMATIC ALDEHYDES

Article

Last updated: 22 Jan 2023

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Chemistry

Abstract

Photocatalytic oxidation of aromatic aldehydes to related carboxylic acids was investigated in the presence of some Keggin heteroploy acids as phosphomolybdic acid H3PMo12O40 (PMo), silicotungestic acid H4SiW12O40 (SiW) and phosphotungstic acid H3PW12O40 (PW). Keggin acids can catalyze the oxidation of 4-carboxybenzaldehyde (4-CBA) and p-tolualdehyde (p-Tol) under homogeneous reaction. Also, for additional studies, we reconnoitered the application of Keggin catalyst in the presence of persulfate (PS) as oxidizing agent. ­­­­­­­­­Our results showed that in the presence of PS and (6 watt)UV light, the most active catalyst among the used Keggin acids is the phosphomolybdic acid (80.9% yield) due to the high oxidative ability of molybdenum . The effects of catalyst concentration, time and oxidant load have been studied. The mechanistic aspects of the reaction also have been discussed.

DOI

10.21608/absb.2017.8112

Keywords

Keggin heteropoly acid, photocatalytic oxidation, aromatic aldehyde, persulfate

Authors

First Name

F.Z.

Last Name

Yehia

MiddleName

Z.

Affiliation

Department of Petrochemicals, Egyptian Petroleum Research Institute (EPRI ), Nasr City, Cairo, Egypt

Email

-

City

-

Orcid

-

First Name

G.

Last Name

Elkady

MiddleName

M.

Affiliation

Department of Chemistry, Alazhar University, Nasr City, Cairo, Egypt.

Email

-

City

-

Orcid

-

First Name

A.

Last Name

Mady

MiddleName

H.

Affiliation

Department of Petrochemicals, Egyptian Petroleum Research Institute (EPRI ), Nasr City, Cairo, Egypt

Email

amr_mady2005@yahoo.com

City

-

Orcid

-

First Name

E.

Last Name

Elnaggar

MiddleName

M.

Affiliation

Department of Chemistry, Alazhar University, Nasr City, Cairo, Egypt.

Email

-

City

-

Orcid

-

First Name

A.

Last Name

Hussein

MiddleName

M.

Affiliation

Department of Petrochemicals, Egyptian Petroleum Research Institute (EPRI ), Nasr City, Cairo, Egypt

Email

-

City

-

Orcid

-

Volume

28

Article Issue

Issue 1-A

Related Issue

1584

Issue Date

2017-06-01

Receive Date

2017-01-05

Publish Date

2017-06-01

Page Start

67

Page End

74

Print ISSN

1110-2535

Online ISSN

2636-3305

Article File

ABSB_Volume 28_Issue Issue 1-A_Pages 67-74.pdf

PDF . 734.1kB

Link

https://absb.journals.ekb.eg/article_8112.html

Detail API

https://absb.journals.ekb.eg/service?article_code=8112

Order

7

Type

Original Article

Type Code

520

Publication Type

Journal

Publication Title

Al-Azhar Bulletin of Science

Publication Link

https://absb.journals.ekb.eg/

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Article

Created At

22 Jan 2023