Polydopamine surface modification with UV-shielding effect using KMnO<inf>4</inf> as an efficient oxidizing agent

Tahroudi, ZM; Razmjou, A; Bagherian, M; Asadnia, M

Polydopamine surface modification with UV-shielding effect using KMnO<inf>4</inf> as an efficient oxidizing agent

Tahroudi, ZM Razmjou, A Bagherian, M Asadnia, M

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Publisher:: ELSEVIER SCIENCE BV
Publication Type:: Journal Article
Citation:: Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2018, 559, pp. 68-73
Issue Date:: 2018-12-20

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Field	Value	Language
dc.contributor.author	Tahroudi, ZM
dc.contributor.author	Razmjou, A
dc.contributor.author	Bagherian, M
dc.contributor.author	Asadnia, M
dc.date.accessioned	2023-03-26T23:24:46Z
dc.date.available	2023-03-26T23:24:46Z
dc.date.issued	2018-12-20
dc.identifier.citation	Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2018, 559, pp. 68-73
dc.identifier.issn	0927-7757
dc.identifier.issn	1873-4359
dc.identifier.uri	http://hdl.handle.net/10453/168471
dc.description.abstract	Over the last decade, polydopamine (PDA) has attracted significant attention due to its material-independent coating ability, process simplicity, and its powerful capabilities for ad-layer formation. However, its long coating time (24 h) has limited its application in industrial scale. To address this issue, oxidants such as (NH4)2S2O8 CuSO4 and NaIO4 were introduced to enhance the coating kinetically. Although NaIO4, among all the oxidants, was reported as the most efficient one, its high stoichiometric ratio of 2 between the oxidant and dopamine makes it costly and less attractive. Here, KMnO4 is introduced as a new water-soluble oxidant which can substantially reduce the PDA coating to few minutes in a single reaction process with a chance to adjust its thickness without losing PDA intrinsic modification capability. At a KMnO4/dopamine ratio of 0.4, a coating speed of 750 nm/h was achieved, which is 25 times higher than that of NaIO4 at similar oxidant/dopamine ratio. The KMnO4-assisted PDA coating was utilized to introduce an efficient and inexpensive method to convert glass materials to surfaces with durable UV shielding property. Finally, the reducibility and ad-layer formation ability of PDA layer were used to develop silver, copper, and ZIF8 composite PDA layer to adjust the UV protection level.
dc.language	English
dc.publisher	ELSEVIER SCIENCE BV
dc.relation.ispartof	Colloids and Surfaces A: Physicochemical and Engineering Aspects
dc.relation.isbasedon	10.1016/j.colsurfa.2018.09.029
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	02 Physical Sciences, 03 Chemical Sciences, 09 Engineering
dc.subject.classification	Chemical Physics
dc.title	Polydopamine surface modification with UV-shielding effect using KMnO<inf>4</inf> as an efficient oxidizing agent
dc.type	Journal Article
utslib.citation.volume	559
utslib.for	02 Physical Sciences
utslib.for	03 Chemical Sciences
utslib.for	09 Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	closed_access	*
dc.date.updated	2023-03-26T23:24:44Z
pubs.publication-status	Published
pubs.volume	559

Abstract:

Over the last decade, polydopamine (PDA) has attracted significant attention due to its material-independent coating ability, process simplicity, and its powerful capabilities for ad-layer formation. However, its long coating time (24 h) has limited its application in industrial scale. To address this issue, oxidants such as (NH4)2S2O8 CuSO4 and NaIO4 were introduced to enhance the coating kinetically. Although NaIO4, among all the oxidants, was reported as the most efficient one, its high stoichiometric ratio of 2 between the oxidant and dopamine makes it costly and less attractive. Here, KMnO4 is introduced as a new water-soluble oxidant which can substantially reduce the PDA coating to few minutes in a single reaction process with a chance to adjust its thickness without losing PDA intrinsic modification capability. At a KMnO4/dopamine ratio of 0.4, a coating speed of 750 nm/h was achieved, which is 25 times higher than that of NaIO4 at similar oxidant/dopamine ratio. The KMnO4-assisted PDA coating was utilized to introduce an efficient and inexpensive method to convert glass materials to surfaces with durable UV shielding property. Finally, the reducibility and ad-layer formation ability of PDA layer were used to develop silver, copper, and ZIF8 composite PDA layer to adjust the UV protection level.

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http://hdl.handle.net/10453/168471