Efficient application of nano-TiO2 thin films in the photocatalytic removal of Alizarin Yellow from aqueous solutions

Tiwari, Diwakar; Lalhriatpuia, C.; Lalhmunsiama,; Lee, Seung Mok; Kong, Sung-Ho

doi:10.1016/j.apsusc.2015.06.131

Cited by 42 publications

(8 citation statements)

References 43 publications

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“…Decreasing concentration of MO1 from 20.0 to 0.5 mg/L had enabled to increase the percentage degradation of MO1 from 13.7 to 60.6% (for UV-A) and 6.5 to 38.14% (LED light), respectively. The decrease in degradation e ciency with an increase in concentration of MO1 is, perhaps, due to the reason that the contact possibility of MO1 at the photocatalyst surface was relatively less at higher concentration of MO1 dye (Tiwari et al 2015). It is also evident that at high concentration of MO1, the scavenging effect increases which possibly results in decrease of percentage removal of the MO1 (Nasseri et al 2017).…”

Section: Concentration Dependence Removal Of Mo1mentioning

confidence: 97%

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Noble metal-doped TiO2 thin films in the efficient removal of Mordant Orange-1: insights of degradation process

Vanlalhmingmawia

Lalhriatpuia

Tiwari

et al. 2022

Environ Sci Pollut Res

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Nanocomposite Ag 0 (NPs)/TiO 2 is synthesized in a facile template method enabling ne particles of reduced Ag evenly distributed within the titania network. The morphological studies of nanocomposite were extensively performed employing SEM/EDX (Scanning Electron Spectroscopy/Energy Dispersive Xray), TEM (Transmission Electron Microscopy) and AFM (Atomic Force Microscopy). The newer insights in the photocatalytic elimination of Mordant Orange-1 (MO1) was obtained using the nanocomposite thin lm for various parametric studies utilizing the UV-A and LED illuminations. The kinetics of degradation of MO1 was performed and the rate constant was favoured at lower concentrations of MO1. However, the elimination e ciency of MO1 was favoured with decrease in solution pH. The NPOC results inferred that fairly good extent of MO1 was mineralized using thin lm catalyst for both the UV-A and LED illuminations. The minimal effect of several co-ions demonstrated applicability of thin lms in the elimination of MO1 and the stability of the thin lm has shown the potential applicability of thin lm catalyst. Further, mechanism of photocatalytic degradation was demonstrated with the radical scavengers studies and ascertained the reaction pathways.

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Section: Concentration Dependence Removal Of Mo1mentioning

confidence: 97%

“…On the other hand, the photolysis using the UV-A or LED irradiation showed almost negligible degradation of MO1. Therefore, the photocatalytic operations favoured the mineralization of MO1 using the nanocomposite thin lm photocatalyst (Tiwari et al 2015).…”

Section: Mineralization Of Mo1mentioning

confidence: 99%

Noble metal-doped TiO2 thin films in the efficient removal of Mordant Orange-1: insights of degradation process

Vanlalhmingmawia

Lalhriatpuia

Tiwari

et al. 2022

Environ Sci Pollut Res

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“…Further, the kinetics of the photocatalytic degradation of tetracycline were studied. It was been reported that degradation of tetracycline followed pseudo first order kinetics [34][35]. According to the following equation, the Ln (C 0 /C t ) values are obtained and graphically presented in Fig.…”

Section: Photocatalytic Activitymentioning

confidence: 99%

Hydrothermal synthesis of novel flower-like BiVO 4 /Bi 2 Ti 2 O 7 with superior photocatalytic activity toward tetracycline removal

Han

Guo

et al. 2016

Applied Catalysis A: General

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“…Several dyes and pigments, some of which are poisonous or carcinogenic, are regularly released into the environment through industrial wastewater discharge [1]; consequently, these effluents can have a significant impact on the aquatic ecosystems [2][3][4]. The dye, food coloring, cosmetics, paper, and textile industries are responsible for the majority of these contaminations [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Amine-Based Deep Eutectic Solvents for Alizarin Extraction from Aqueous Media

et al. 2022

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Alizarin dye is toxic and has a negative influence on human life and the environment. Consequently, the scientific community faces a difficult issue in developing efficient approaches for removing alizarin from water streams. Six distinct deep eutectic solvents (DESs) containing different hydrogen bond acceptors (HBAs), namely trioctylphosphine, trioctylamine and trihexylamine, and two hydrogen bond donors (HBDs), namely salicylic acid and malonic acid, were used to rapidly remove alizarin from high concentration solutions up to 2000 mg/L at room temperature using the liquid–liquid micro-extraction method (LLE). DES-3 had the highest extraction efficiency for alizarin among the other synthesized DESs. The effect of process variables such pH, contact time, dye initial concentration, volume ratio, temperature and salt on alizarin extraction efficiency from water stream was explored, optimized and reported. Statistical analysis was conducted to ensure the accuracy of values for the optimized parameters. For a 1000 mg/L solution of alizarin with a DES/alizarin volume ratio of 1:10 at room temperature, the maximum elimination of 98.02 percent was achieved in 5 min. FTIR was used to analyze the structural properties of DES and the interaction between DES and alizarin. The thermal stability of DES-3 was determined using thermogravimetric analysis (TGA) and indicated that DES-3 has excellent thermal stability up to 320 °C. Human saline was used to test the toxicity of the synthesized DES in vitro. It was determined that synthesized DES is less harmful and more effective at removing alizarin.

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Efficient application of nano-TiO2 thin films in the photocatalytic removal of Alizarin Yellow from aqueous solutions

Cited by 42 publications

References 43 publications

Noble metal-doped TiO2 thin films in the efficient removal of Mordant Orange-1: insights of degradation process

Noble metal-doped TiO2 thin films in the efficient removal of Mordant Orange-1: insights of degradation process

Hydrothermal synthesis of novel flower-like BiVO 4 /Bi 2 Ti 2 O 7 with superior photocatalytic activity toward tetracycline removal

Amine-Based Deep Eutectic Solvents for Alizarin Extraction from Aqueous Media

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