Design expert application for optimization of ag/agbr/tio2 visible light photocatalyst preparation

Titanium dioxide (TiO2) was activated under visible light after modification by doping with silver/silver bromide (Ag/AgBr) through simple impregnation-precipitation-photoreduction process. The use of central composite design tool of design expert in order to optimize the preparation parameters name...

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Main Authors: Affam, A.C., Chung, W.C., Lau, P.L., Johnson, O.A., Seong, K.C., Baloo, L., Peng, B.W.L., Xınru, F.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.30338 /
Published: Springer Science and Business Media Deutschland GmbH 2021
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85100813392&doi=10.1007%2f978-981-33-6311-3_11&partnerID=40&md5=eb4fa5e97e44935b4d2153107bd6a75f
http://eprints.utp.edu.my/30338/
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spelling utp-eprints.303382022-03-25T06:43:48Z Design expert application for optimization of ag/agbr/tio2 visible light photocatalyst preparation Affam, A.C. Chung, W.C. Lau, P.L. Johnson, O.A. Seong, K.C. Baloo, L. Peng, B.W.L. Xınru, F. Titanium dioxide (TiO2) was activated under visible light after modification by doping with silver/silver bromide (Ag/AgBr) through simple impregnation-precipitation-photoreduction process. The use of central composite design tool of design expert in order to optimize the preparation parameters namely silver dopant, precipitation time and photoreduction time for the degradation of pesticide chloropyrifos was feasible. From the analysis of variance (ANOVA), the most influential factors affecting the experimental process and interaction was identified. The chemical oxygen demand (COD) removal increased with increasing the amount of Ag dopant and photoreduction time while precipitation time was not a significant factor. Optimized condition for preparation of the Ag/AgBr/TiO2 was mass ratio of Ag to TiO2: 1:1, precipitation time: 60 min, and photoreduction time: 90 min. Experimental COD removal efficiency was 77 while the predicted value was 77.4. The percentage error was 0.51. The close agreement between both predicted and actual COD removal shows good model. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2021. Springer Science and Business Media Deutschland GmbH 2021 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85100813392&doi=10.1007%2f978-981-33-6311-3_11&partnerID=40&md5=eb4fa5e97e44935b4d2153107bd6a75f Affam, A.C. and Chung, W.C. and Lau, P.L. and Johnson, O.A. and Seong, K.C. and Baloo, L. and Peng, B.W.L. and Xınru, F. (2021) Design expert application for optimization of ag/agbr/tio2 visible light photocatalyst preparation. Lecture Notes in Civil Engineering, 132 . pp. 93-102. http://eprints.utp.edu.my/30338/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Titanium dioxide (TiO2) was activated under visible light after modification by doping with silver/silver bromide (Ag/AgBr) through simple impregnation-precipitation-photoreduction process. The use of central composite design tool of design expert in order to optimize the preparation parameters namely silver dopant, precipitation time and photoreduction time for the degradation of pesticide chloropyrifos was feasible. From the analysis of variance (ANOVA), the most influential factors affecting the experimental process and interaction was identified. The chemical oxygen demand (COD) removal increased with increasing the amount of Ag dopant and photoreduction time while precipitation time was not a significant factor. Optimized condition for preparation of the Ag/AgBr/TiO2 was mass ratio of Ag to TiO2: 1:1, precipitation time: 60 min, and photoreduction time: 90 min. Experimental COD removal efficiency was 77 while the predicted value was 77.4. The percentage error was 0.51. The close agreement between both predicted and actual COD removal shows good model. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2021.
format Article
author Affam, A.C.
Chung, W.C.
Lau, P.L.
Johnson, O.A.
Seong, K.C.
Baloo, L.
Peng, B.W.L.
Xınru, F.
spellingShingle Affam, A.C.
Chung, W.C.
Lau, P.L.
Johnson, O.A.
Seong, K.C.
Baloo, L.
Peng, B.W.L.
Xınru, F.
Design expert application for optimization of ag/agbr/tio2 visible light photocatalyst preparation
author_sort Affam, A.C.
title Design expert application for optimization of ag/agbr/tio2 visible light photocatalyst preparation
title_short Design expert application for optimization of ag/agbr/tio2 visible light photocatalyst preparation
title_full Design expert application for optimization of ag/agbr/tio2 visible light photocatalyst preparation
title_fullStr Design expert application for optimization of ag/agbr/tio2 visible light photocatalyst preparation
title_full_unstemmed Design expert application for optimization of ag/agbr/tio2 visible light photocatalyst preparation
title_sort design expert application for optimization of ag/agbr/tio2 visible light photocatalyst preparation
publisher Springer Science and Business Media Deutschland GmbH
publishDate 2021
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85100813392&doi=10.1007%2f978-981-33-6311-3_11&partnerID=40&md5=eb4fa5e97e44935b4d2153107bd6a75f
http://eprints.utp.edu.my/30338/
_version_ 1741197389733036032
score 11.62408

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