Fabrication of novel particle electrode γ-Al2O3@ZIF-8 and its application for degradation of Rhodamine B.

Zhang, L; Ma, C; Liu, L; Pan, J; Wang, Q

Fabrication of novel particle electrode γ-Al2O3@ZIF-8 and its application for degradation of Rhodamine B.

Zhang, L Ma, C Liu, L Pan, J Wang, Q

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Publisher:: IWA PUBLISHING
Publication Type:: Journal Article
Citation:: Water science and technology : a journal of the International Association on Water Pollution Research, 2019, 80, (1), pp. 109-116
Issue Date:: 2019-07

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Field	Value	Language
dc.contributor.author	Zhang, L
dc.contributor.author	Ma, C
dc.contributor.author	Liu, L
dc.contributor.author	Pan, J
dc.contributor.author	Wang, Q https://orcid.org/0000-0002-5744-2331
dc.date.accessioned	2020-05-19T23:35:39Z
dc.date.available	2021-08-12T19:00:36Z
dc.date.issued	2019-07
dc.identifier.citation	Water science and technology : a journal of the International Association on Water Pollution Research, 2019, 80, (1), pp. 109-116
dc.identifier.issn	0273-1223
dc.identifier.issn	1996-9732
dc.identifier.uri	http://hdl.handle.net/10453/140829
dc.description.abstract	Due to the high Brunauer-Emmett-Teller (BET) surface area of zeolitic imidazolate framework (ZIF)-8, a secondary crystallization method was used to prepare a particle electrode of γ-Al2O3@ZIF-8. According to the results from a field emission scanning electron microscope (SEM) and X-ray diffractometer (XRD), the particle electrode of γ-Al2O3 was successfully loaded with ZIF-8, and the BET surface area (1,433 m2/g) of ZIF-8 was over ten times that of γ-Al2O3. The key operation parameters of cell voltage, pH, initial RhB concentration and electrolyte concentration were all optimized. The observed rate constant (kobs) of the pseudo-first-order kinetic model for the electrocatalytic oxidation (ECO) system with the particle electrode of γ-Al2O3@ZIF-8 (15.2 × 10-2 min-1) was over five times higher than that of the system with the traditional particle electrode of γ-Al2O3 (2.6 × 10-2 min-1). The loading of ZIF-8 on the surface of γ-Al2O3 played an important role in improving electrocatalytic activity for the degradation of Rhodamine B (RhB), and the RhB removal efficiency of the three-dimensional (3D) electrocatalytic system with the particle electrode of γ-Al2O3@ZIF-8 was 93.5% in 15 min, compared with 27.5% in 15 min for the particle electrode of γ-Al2O3. The RhB removal efficiency was kept over 85% after five cycles of reuse for the 3D electrocatalytic system with the particle electrode of γ-Al2O3@ZIF-8.
dc.format	Print
dc.language	eng
dc.publisher	IWA PUBLISHING
dc.relation.ispartof	Water science and technology : a journal of the International Association on Water Pollution Research
dc.relation.isbasedon	10.2166/wst.2019.251
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject.classification	Environmental Engineering
dc.subject.mesh	Zeolites
dc.subject.mesh	Rhodamines
dc.subject.mesh	Electrodes
dc.subject.mesh	Waste Disposal, Fluid
dc.subject.mesh	Oxidation-Reduction
dc.subject.mesh	Electrodes
dc.subject.mesh	Oxidation-Reduction
dc.subject.mesh	Rhodamines
dc.subject.mesh	Waste Disposal, Fluid
dc.subject.mesh	Zeolites
dc.title	Fabrication of novel particle electrode γ-Al2O3@ZIF-8 and its application for degradation of Rhodamine B.
dc.type	Journal Article
utslib.citation.volume	80
utslib.location.activity	England
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	open_access	*
dc.date.updated	2020-05-19T23:35:35Z
pubs.issue	1
pubs.publication-status	Published
pubs.volume	80
utslib.start-page	109
utslib.citation.issue	1

Abstract:

Due to the high Brunauer-Emmett-Teller (BET) surface area of zeolitic imidazolate framework (ZIF)-8, a secondary crystallization method was used to prepare a particle electrode of γ-Al2O3@ZIF-8. According to the results from a field emission scanning electron microscope (SEM) and X-ray diffractometer (XRD), the particle electrode of γ-Al2O3 was successfully loaded with ZIF-8, and the BET surface area (1,433 m2/g) of ZIF-8 was over ten times that of γ-Al2O3. The key operation parameters of cell voltage, pH, initial RhB concentration and electrolyte concentration were all optimized. The observed rate constant (kobs) of the pseudo-first-order kinetic model for the electrocatalytic oxidation (ECO) system with the particle electrode of γ-Al2O3@ZIF-8 (15.2 × 10-2 min-1) was over five times higher than that of the system with the traditional particle electrode of γ-Al2O3 (2.6 × 10-2 min-1). The loading of ZIF-8 on the surface of γ-Al2O3 played an important role in improving electrocatalytic activity for the degradation of Rhodamine B (RhB), and the RhB removal efficiency of the three-dimensional (3D) electrocatalytic system with the particle electrode of γ-Al2O3@ZIF-8 was 93.5% in 15 min, compared with 27.5% in 15 min for the particle electrode of γ-Al2O3. The RhB removal efficiency was kept over 85% after five cycles of reuse for the 3D electrocatalytic system with the particle electrode of γ-Al2O3@ZIF-8.

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http://hdl.handle.net/10453/140829