Enhanced photocatalytic degradation of methylene blue and methyl orange by ZnO:Eu nanoparticles
Lidija V. Trandafilović,Dragana Jovanovic,Xueqiang Zhang,Sylwia Ptasinska,Miroslav D. Dramićanin +4 more
TLDR
In this paper, the influence of europium doping and solvents on size, particles agglomeration, light absorption and photocatalytic activity was analyzed in ZnO nanoparticles.Abstract:
ZnO nanoparticles doped with different Eu3+ percentages were synthesized in water (ZnO:Eu(x%)-W) and other solvents (methanol ZnO:Eu(x%)-M and ethanol ZnO:Eu(x%)-E). X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), optical absorption and photoluminescence (PL) spectroscopy were used for characterization of the nanoparticles. Our results showed influence of europium doping and solvents on size, particles agglomeration, light absorption and photocatalytic activity. Improvement in photocatalytical activity with addition of Eu3+ doping was detected. Particle size increased with Eu3+ doping in water samples, while it decreased in methanol. Agglomeration was more prominent in ZnO:Eu(x%)-W samples. Greater amount of surface OH groups in case of ZnO:Eu(x%)-M samples was detected by PL, XPS and FTIR measurements. Influence of europium doping, as an electron trap, and surface OH groups, as a hole trap, was studied in sunlight photocatalytic degradation of cationic methylene blue (MB) and anionic methyl orange (MO). Improved photocatalytic behavior was discussed and influence of active species was further investigated using hole and hydroxyle radical scavengers. The degradation pathway of MB and MO, using high performance liquid chromatohraphy (HPLC), is also examined.read more
Citations
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Saffron derived carbon quantum dot/N-doped ZnO/fulvic acid nanocomposite for sonocatalytic degradation of methylene blue
TL;DR: In this paper, N-doped ZnO/fulvic acid (FA)/carbon quantum dot (CQD) nanoparticles were synthesized from dried stigma of saffron.
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Development of polyester filters with polymer nanocomposite active layer for effective dye filtration
TL;DR: In this paper , new padded and covered filters were produced applying polystyrene-acrylic/ZnO nanocomposite on the polyester surface by blade coating and one-bath pad methods.
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Effect of temperature on structural and optical properties of solvothermal assisted CdS nanowires with enhanced photocatalytic degradation under natural sunlight irradiation
TL;DR: In this paper, the photocatalytic degradation of methylene blue (MB) dye using cadmium sulfide (CdS) nanowires as a photocatalyst under natural sunlight irradiation was reported.
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Synthesis of magnetically reusable Fe3O4 nanospheres-N, S co-doped graphene quantum dots enclosed CdSe its application as a photocatalyst
TL;DR: In this paper, Fe3O4 nanospheres attached on N, S co-doped graphene quantum dots (NSG) enclosed CdSe nanoparticles (CdSe/NSG-Fe3O 4) is introduced as a magnetic high-performance photocatalyst for the heterogeneous photodegradation of methylene blue in aqueous solutions.
Journal ArticleDOI
Development of polyester filters with polymer nanocomposite active layer for effective dye filtration
TL;DR: In this article , new padded and covered filters were produced applying polystyrene-acrylic/ZnO nanocomposite on the polyester surface by blade coating and one-bath pad methods.
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