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Title:SnO2-Containing Clinoptilolite as a Composite Photocatalyst for Dyes Removal fromWastewater under Solar Light
Authors:ID Šuligoj, Andraž, KI (Author)
ID Pavlovič, Jelena, University of Belgrade (Author)
ID Arčon, Iztok, UNG (Author)
ID Rajić, Nevenka, University of Belgrade (Author)
ID Novak Tušar, Nataša, UNG (Author)
Files:.pdf SnO2catalystss_reprint.pdf (3,50 MB)
MD5: 7E84757E1F46C7F7554772B868C35C1C
 
Language:English
Work type:Not categorized
Typology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
Abstract:Due to their adsorbent, ion exchange and catalytic properties zeolites are suitable for a variety of applications. We report on the photocatalytic activity of a readily available and inexpensive natural zeolite clinoptilolite (Z) containing SnO2 (Sn-Z). The Sn-Z samples with 3–15 wt. % of Sn were prepared by using a precipitation–deposition method. Powder X-ray diffraction analysis showed that the zeolite structure was unaffected by the introduction of the Sn-phase. Diffuse reflectance UV/VIS spectra of the Sn-Z samples confirmed the presence of SnO2 and X-Ray absorption spectroscopy analyses suggested that the SnO2 particles mainly resided on the surface of the clinoptilolite, while ATR-FTIR analysis gave some clues that part of the SnO2 phase was incorporated in the pores of the zeolite. The presence of SnO2 in Sn-Z increased both adsorption capacity and photocatalytic performance which could be partially explained by higher surface area and partially with an increased negative potential of the surface. Adsorption and total degradation of methylene blue (MB) for the Sn-Z with the highest amount of Sn (15 wt.%) was about 30% and 45%, respectively, suggesting a synergetic effect between SnO2 and the clinoptilolite lattice. Reusability tests showed that these catalysts present a promising material for water purification.
Keywords:SnO2, zeolite, SnO2-clinoptilolite composite, photocatalysis, solar light, methylene blue removal, wastewater treatment
Year of publishing:2020
Number of pages:18
Numbering:10
PID:20.500.12556/RUNG-5053-f1a121f7-7c6a-17ca-2b17-2f7c25d27f79 New window
COBISS.SI-ID:5575931 New window
DOI:10.3390/catal10020253 New window
NUK URN:URN:SI:UNG:REP:YRYYANZR
Publication date in RUNG:25.02.2020
Views:2985
Downloads:132
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Record is a part of a journal

Title:Catalysts
Year of publishing:2020

Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:25.02.2020

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