Photocatalytic degradation of MB by TiO2: studies on recycle and reuse of photocatalyst and treated water for seed germination

Kumari, Sonu; Shivaraju, Harikaranahalli Puttaiah; Raghavan, Vikram Srinivasa; Gorthi, Sai Siva

doi:10.1007/s11356-021-13863-0

Cited by 26 publications

(5 citation statements)

References 44 publications

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“…Germination index analysis was used to formulate the toxicity of MB dye and its breakdown products obtained by the sonocatalysis process. Previously, also some researchers have found the useability of the treated water by the basic germination of V. radiata seeds 69,70 . This procedure is used to assess the viability and efficacy of the sonocatalytic method in conjunction with the potential utilization of treated dye water.…”

Section: Resultsmentioning

confidence: 99%

Sonocatalysis and Photocatalysis in Ba_0.5Sr_0.5TiO₃ ceramics

Tiwari

Gaur

Vaish

2023

Int J Applied Ceramic Tech

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The photocatalytic, sonocatalytic, and sono‐photocatalytic performances of Ba0.5Sr0.5TiO3 (BST) ceramic (synthesized through solid‐state reaction route) were investigated for the degradation of an organic dye named methylene blue (MB). The as‐prepared BST ceramic powder was characterized using a scanning electron microscope, X‐ray diffraction, X‐ray photoelectron, and Raman spectroscopy techniques. The optical energy band gap of BST ceramic was found to be ∼3.17 eV. BST has shown significant catalytic activity following sonocatalysis and photocatalysis processes, i.e, ∼48% and ∼65% in 3 h, respectively. The synergic effect of the sonocatalysis and photocatalysis processes had shown an excellent degradation of 81% in 3 h. To determine the reactive species responsible for the degradation of MB dye, a scavenger test was also performed using isopropyl alcohol (IPA), ethylenediaminetetraacetic acid (EDTA), and benzoquinone (BQ) scavengers. The degree of MB dye degradation was quantified by a phytotoxicity test on “Vigna radiata” seeds. Furthermore, the potentiality of BST ceramic was explored for water cleaning applications while irradiating it to solar radiation in real‐time conditions.

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Section: Resultsmentioning

confidence: 99%

Sonocatalysis and Photocatalysis in Ba_0.5Sr_0.5TiO₃ ceramics

Tiwari

Gaur

Vaish

2023

Int J Applied Ceramic Tech

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“…The results indicate that the recycled CoFe 2 O 4 @ZnO NPs could be reused three times for photocatalytic degradation. For comparison, there have been recently reported that the TiO 2 could be reused three times, 52 the ZnO/ Zn could be reused five times, 53 and the BiFeO 3 could be reused five times 54 for degradation.…”

Section: Resultsmentioning

confidence: 99%

Reusability of Photocatalytic CoFe₂O₄@ZnO Core–Shell Nanoparticles for Dye Degradation

Suharyadi

Muzakki

Istiqomah

et al. 2022

ECS J. Solid State Sci. Technol.

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The reusability of CoFe2O4@ZnO core–shell nanoparticles (NPs) for the photocatalytic degradation of methylene blue (MB) under UV radiation was successfully investigated. CoFe2O4@ZnO NPs with various CoFe2O4-to-ZnO concentration ratios were synthesized as magnetic photocatalysts. The X-ray diffraction spectra showed that the NPs had a cubic spinel ferrite phase structure and a hexagonal wurtzite phase of ZnO. Fourier-transform infrared spectra showed the presence of Moct-O, Mtet-O, and Zn-O at 593, 347-389, and 410-429 cm-1, respectively. The CoFe2O4@ZnO NPs had a saturation magnetization of approximately 30 emu/g and a coercivity of approximately 280 Oe. The absorbance spectra showed that the absorbance peak of the CoFe2O4@ZnO NPs broadened and shifted to the right (higher wavelength) with increasing ZnO concentration. The CoFe2O4@ZnO NPs with higher ZnO concentrations exhibited higher photocatalytic activities and degradation rates. The enhancement of MB degradation can be attributed to the formation of an internal structure between CoFe2O4 and ZnO. The degradation rate of CoFe2O4@ZnO decreased slightly after each successive recycle. The results indicated that the recycled CoFe2O4@ZnO NPs could be reused three times for photocatalytic degradation. As there is no significant decrease in the photocatalytic degradation after four successive recycles, the CoFe2O4@ZnO NPs are suitable for application in dye degradation.

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“…This might be sufficient to negate the physiological toxicity of wheat plants or at least alleviate toxicity at the germination stage of wheat. Considering only this parameter, this strongly implies that photocatalytic degradation is a suitable approach to reduce the toxicity of TLP in environmental and waste waters [ 41 , 42 , 43 ].…”

Section: Resultsmentioning

confidence: 99%

Sustainable Removal of Tolperisone from Waters by Application of Photocatalysis, Nanotechnology, and Chemometrics: Quantification, Environmental Toxicity, and Degradation Optimization

et al. 2022

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Environmental pollution is an emerging global issue. Heterogenous photocatalytic degradation, which belongs to the advanced oxidation processes, is a promising sustainable technique for the removal of harmful pollutants (e.g., pharmaceuticals) from natural resources (surface and underground waters), as well as wastewaters. In our study, we examined the efficiency of photocatalytic degradation (with TiO2 and ZnO as photocatalysts) of tolperisone hydrochloride (TLP) and the effect of TLP and its degradation intermediates on germination, photosynthetic capacity, and biomass production of wheat. According to the UFLC-DAD and LC–ESI–MS results, we found that the complete degradation of TLP can be reached after 60.83 min of UV irradiation using TiO2 as a photocatalyst. Furthermore, we determined that germination, biomass production, and chlorophyll b (Chl b) were not related to the percentage of TLP after irradiation. Chlorophyll a (Chl a) (r = -0.61, p ≤ 0.05), Chl a+b (r = -0.56, p ≤ 0.05), and carotenoid (car) (r = -0.57, p ≤ 0.05) were strongly inversely (negatively) correlated with TLP, while Chl a+b/car (r = 0.36, p ≤ 0.05) was moderately (positively) related.

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Photocatalytic degradation of MB by TiO2: studies on recycle and reuse of photocatalyst and treated water for seed germination

Cited by 26 publications

References 44 publications

Sonocatalysis and Photocatalysis in Ba_0.5Sr_0.5TiO₃ ceramics

Sonocatalysis and Photocatalysis in Ba_0.5Sr_0.5TiO₃ ceramics

Reusability of Photocatalytic CoFe₂O₄@ZnO Core–Shell Nanoparticles for Dye Degradation

Sustainable Removal of Tolperisone from Waters by Application of Photocatalysis, Nanotechnology, and Chemometrics: Quantification, Environmental Toxicity, and Degradation Optimization

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Photocatalytic degradation of MB by TiO2: studies on recycle and reuse of photocatalyst and treated water for seed germination

Cited by 26 publications

References 44 publications

Sonocatalysis and Photocatalysis in Ba0.5Sr0.5TiO3 ceramics

Sonocatalysis and Photocatalysis in Ba0.5Sr0.5TiO3 ceramics

Reusability of Photocatalytic CoFe2O4@ZnO Core–Shell Nanoparticles for Dye Degradation

Sustainable Removal of Tolperisone from Waters by Application of Photocatalysis, Nanotechnology, and Chemometrics: Quantification, Environmental Toxicity, and Degradation Optimization

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Sonocatalysis and Photocatalysis in Ba_0.5Sr_0.5TiO₃ ceramics

Sonocatalysis and Photocatalysis in Ba_0.5Sr_0.5TiO₃ ceramics

Reusability of Photocatalytic CoFe₂O₄@ZnO Core–Shell Nanoparticles for Dye Degradation