Cover Image

Synthesis of Au-cerium oxide for catalytic reduction of para-nitrophenol / Nur Sakeenah Khairudin

The reduction of p-nitrophenol is a widely studied reaction and serves as an important model reaction to evaluate the catalytic activity. In this study, a facile and scalable synthesis method was employed to prepare cerium oxide support via chemical and co-precipitation, meanwhile gold (Au) was depo...

Full description

Saved in:
Bibliographic Details
Main Author: Khairudin, Nur Sakeenah
Format: Thesis
Language:English
Published: 2023
Subjects:
Catalysis
Online Access:https://ir.uitm.edu.my/id/eprint/93494/1/93494.pdf
https://ir.uitm.edu.my/id/eprint/93494/
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.uitm.ir.93494
record_format eprints
spelling my.uitm.ir.934942024-05-28T14:46:04Z https://ir.uitm.edu.my/id/eprint/93494/ Synthesis of Au-cerium oxide for catalytic reduction of para-nitrophenol / Nur Sakeenah Khairudin Khairudin, Nur Sakeenah Catalysis The reduction of p-nitrophenol is a widely studied reaction and serves as an important model reaction to evaluate the catalytic activity. In this study, a facile and scalable synthesis method was employed to prepare cerium oxide support via chemical and co-precipitation, meanwhile gold (Au) was deposited on cerium oxide support via deposition-precipitation (DP) method through a controlled reduction process is presented in this thesis. The cerium oxide support was synthesized with cerium nitrate as the precursor mixed with ammonia solution and potassium carbohydrate via chemical and co-precipitation technique respectively. Furthermore, the resulting particles were characterized using FTIR showed a pure CeO2 without impurities was produced and ICP-OES spectroscopy showed the composition of Au loading in catalyst with value 0565 and 0.349 mg/L for chemical and co-precipitation respectively. Moreover, the characterization of Au/CeO2 catalyst by FTIR confirmed the immobilization of Au on CeO2 support due to band shifting. The catalytic activity of p-nitrophenol reduction achieved 100% conversion to p-aminophenol for chemical and co-precipitation method with the rate constant (k) of 3.0383x10-3 and 5.103x10-3 s-1 respectively. The reaction kinetics were monitored using UV-visible spectroscopy. The successful reusability test for both Au/CeO2 catalysts proved that catalysts can be use again for several times. 2023 Thesis NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/93494/1/93494.pdf Synthesis of Au-cerium oxide for catalytic reduction of para-nitrophenol / Nur Sakeenah Khairudin. (2023) UNSPECIFIED thesis, thesis, Universiti Teknologi MARA, Perlis.
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic Catalysis
spellingShingle Catalysis
Khairudin, Nur Sakeenah
Synthesis of Au-cerium oxide for catalytic reduction of para-nitrophenol / Nur Sakeenah Khairudin
description The reduction of p-nitrophenol is a widely studied reaction and serves as an important model reaction to evaluate the catalytic activity. In this study, a facile and scalable synthesis method was employed to prepare cerium oxide support via chemical and co-precipitation, meanwhile gold (Au) was deposited on cerium oxide support via deposition-precipitation (DP) method through a controlled reduction process is presented in this thesis. The cerium oxide support was synthesized with cerium nitrate as the precursor mixed with ammonia solution and potassium carbohydrate via chemical and co-precipitation technique respectively. Furthermore, the resulting particles were characterized using FTIR showed a pure CeO2 without impurities was produced and ICP-OES spectroscopy showed the composition of Au loading in catalyst with value 0565 and 0.349 mg/L for chemical and co-precipitation respectively. Moreover, the characterization of Au/CeO2 catalyst by FTIR confirmed the immobilization of Au on CeO2 support due to band shifting. The catalytic activity of p-nitrophenol reduction achieved 100% conversion to p-aminophenol for chemical and co-precipitation method with the rate constant (k) of 3.0383x10-3 and 5.103x10-3 s-1 respectively. The reaction kinetics were monitored using UV-visible spectroscopy. The successful reusability test for both Au/CeO2 catalysts proved that catalysts can be use again for several times.
format Thesis
author Khairudin, Nur Sakeenah
author_facet Khairudin, Nur Sakeenah
author_sort Khairudin, Nur Sakeenah
title Synthesis of Au-cerium oxide for catalytic reduction of para-nitrophenol / Nur Sakeenah Khairudin
title_short Synthesis of Au-cerium oxide for catalytic reduction of para-nitrophenol / Nur Sakeenah Khairudin
title_full Synthesis of Au-cerium oxide for catalytic reduction of para-nitrophenol / Nur Sakeenah Khairudin
title_fullStr Synthesis of Au-cerium oxide for catalytic reduction of para-nitrophenol / Nur Sakeenah Khairudin
title_full_unstemmed Synthesis of Au-cerium oxide for catalytic reduction of para-nitrophenol / Nur Sakeenah Khairudin
title_sort synthesis of au-cerium oxide for catalytic reduction of para-nitrophenol / nur sakeenah khairudin
publishDate 2023
url https://ir.uitm.edu.my/id/eprint/93494/1/93494.pdf
https://ir.uitm.edu.my/id/eprint/93494/
_version_ 1800726571240128512
score 13.211869

Similar Items