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Visible light sensitized porous clay heterostructure photocatalyst of zinc-silica modified montmorillonite by using tris (2,2?-bipyridyl) dichlororuthenium

A visible-light sensitization on porous clay heterostructure of zinc-silica modified montmorillonite (PCH-ZnSi) photocatalyst with tris(2,2?-bipyridyl) dichlororuthenium has been conducted. The preparation of PCH-ZnSi was performed by intercalation of surfactant and co-surfactant of cetyl trimethyl...

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Main Authors: Fatimah, Is, Ardianti, Sesy, Sahroni, Imam, Purwiandono, Gani, Sagadevan, Suresh, Doong, Ruey-An
Format: Article
Published: Elsevier 2021
Subjects:
Q Science (General)
QD Chemistry
Online Access:http://eprints.um.edu.my/28519/
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spelling my.um.eprints.285192022-08-16T06:33:26Z http://eprints.um.edu.my/28519/ Visible light sensitized porous clay heterostructure photocatalyst of zinc-silica modified montmorillonite by using tris (2,2?-bipyridyl) dichlororuthenium Fatimah, Is Ardianti, Sesy Sahroni, Imam Purwiandono, Gani Sagadevan, Suresh Doong, Ruey-An Q Science (General) QD Chemistry A visible-light sensitization on porous clay heterostructure of zinc-silica modified montmorillonite (PCH-ZnSi) photocatalyst with tris(2,2?-bipyridyl) dichlororuthenium has been conducted. The preparation of PCH-ZnSi was performed by intercalation of surfactant and co-surfactant of cetyl trimethyl ammonium bromide-trimethanol amine followed by approaching zinc oxide and silica precursor under microwave assisted method followed by calcination, meanwhile the ruthenium complex attachment was conducted by Ru(Bpy)32+ impregnation into PCHZnSi. The results showed that porous clay heterostructure was successfully obtained as shown by the increased d001 of clay structure identified from XRD measurement and TEM analysis which represented the layers space ranging at 1.9-2.9 nm from 1.09 nm of montmorillonite. This increasing is in line with the evolution of pore distribution and the specific surface area enhancement. Moreover the sensitized form (Ru(Bpy)32+/PCH-ZnSi) represented the increasing photocatalytic activity in both UV and visible light exposure which corresponding to the photoluminescence spectrum ranging at visible region. The physicochemical characteristics supported the photocatalytic activity as revealed by the high degradation efficiency of methylene blue photodegradation which reached 99.8% under UV and 87.6% under visible light. The material has stability as it has maintained efficiency until 6 cycles, correlated with the availability of photoactive sites identified by XPS analysis. Elsevier 2021-04 Article PeerReviewed Fatimah, Is and Ardianti, Sesy and Sahroni, Imam and Purwiandono, Gani and Sagadevan, Suresh and Doong, Ruey-An (2021) Visible light sensitized porous clay heterostructure photocatalyst of zinc-silica modified montmorillonite by using tris (2,2?-bipyridyl) dichlororuthenium. Applied Clay Science, 204. ISSN 0169-1317, DOI https://doi.org/10.1016/j.clay.2021.106023 <https://doi.org/10.1016/j.clay.2021.106023>. 10.1016/j.clay.2021.106023
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic Q Science (General)
QD Chemistry
spellingShingle Q Science (General)
QD Chemistry
Fatimah, Is
Ardianti, Sesy
Sahroni, Imam
Purwiandono, Gani
Sagadevan, Suresh
Doong, Ruey-An
Visible light sensitized porous clay heterostructure photocatalyst of zinc-silica modified montmorillonite by using tris (2,2?-bipyridyl) dichlororuthenium
description A visible-light sensitization on porous clay heterostructure of zinc-silica modified montmorillonite (PCH-ZnSi) photocatalyst with tris(2,2?-bipyridyl) dichlororuthenium has been conducted. The preparation of PCH-ZnSi was performed by intercalation of surfactant and co-surfactant of cetyl trimethyl ammonium bromide-trimethanol amine followed by approaching zinc oxide and silica precursor under microwave assisted method followed by calcination, meanwhile the ruthenium complex attachment was conducted by Ru(Bpy)32+ impregnation into PCHZnSi. The results showed that porous clay heterostructure was successfully obtained as shown by the increased d001 of clay structure identified from XRD measurement and TEM analysis which represented the layers space ranging at 1.9-2.9 nm from 1.09 nm of montmorillonite. This increasing is in line with the evolution of pore distribution and the specific surface area enhancement. Moreover the sensitized form (Ru(Bpy)32+/PCH-ZnSi) represented the increasing photocatalytic activity in both UV and visible light exposure which corresponding to the photoluminescence spectrum ranging at visible region. The physicochemical characteristics supported the photocatalytic activity as revealed by the high degradation efficiency of methylene blue photodegradation which reached 99.8% under UV and 87.6% under visible light. The material has stability as it has maintained efficiency until 6 cycles, correlated with the availability of photoactive sites identified by XPS analysis.
format Article
author Fatimah, Is
Ardianti, Sesy
Sahroni, Imam
Purwiandono, Gani
Sagadevan, Suresh
Doong, Ruey-An
author_facet Fatimah, Is
Ardianti, Sesy
Sahroni, Imam
Purwiandono, Gani
Sagadevan, Suresh
Doong, Ruey-An
author_sort Fatimah, Is
title Visible light sensitized porous clay heterostructure photocatalyst of zinc-silica modified montmorillonite by using tris (2,2?-bipyridyl) dichlororuthenium
title_short Visible light sensitized porous clay heterostructure photocatalyst of zinc-silica modified montmorillonite by using tris (2,2?-bipyridyl) dichlororuthenium
title_full Visible light sensitized porous clay heterostructure photocatalyst of zinc-silica modified montmorillonite by using tris (2,2?-bipyridyl) dichlororuthenium
title_fullStr Visible light sensitized porous clay heterostructure photocatalyst of zinc-silica modified montmorillonite by using tris (2,2?-bipyridyl) dichlororuthenium
title_full_unstemmed Visible light sensitized porous clay heterostructure photocatalyst of zinc-silica modified montmorillonite by using tris (2,2?-bipyridyl) dichlororuthenium
title_sort visible light sensitized porous clay heterostructure photocatalyst of zinc-silica modified montmorillonite by using tris (2,2?-bipyridyl) dichlororuthenium
publisher Elsevier
publishDate 2021
url http://eprints.um.edu.my/28519/
_version_ 1744649122447622144
score 13.211869

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