Enhanced photocatalytic performance of CeO2–TiO2 nanocomposite for degradation of crystal violet dye and industrial waste effluent

Zahoor, Mehvish; Arshad, Amara; Khan, Yaqoob; Iqbal, Mazhar; Bajwa, Sadia Z.; Soomro, Razium Ali; Ahmad, Ishaq; Butt, Faheem K.; Iqbal, Muzaffar; Wu, Aiguo; Khan, Waheed S.

doi:10.1007/s13204-018-0730-z

Cited by 29 publications

(11 citation statements)

References 26 publications

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“…Additionally, chemically modified TiO 2 nanostructures, such as Ag-TiO 2 nanofibers [11] and Se-TiO 2 nanoarrays [12], have been proven to exhibit a significant antitumor performance. It should be noted that a wide diversity of metal oxide photocatalytic materials such as ZnO [13,14], TiO 2 [15,16], CeO 2 [17], and WO 3 [18] has been investigated for both environmental and energy applications. Nevertheless, regarding the anticancer photo-induced treatment, the scientific studies published so far are mainly TiO 2 oriented, which introduces this metal oxide as a proper applicant for this present research [8,9].…”

Section: Introductionmentioning

confidence: 99%

Development of Smart Composites Based on Doped-TiO2 Nanoparticles with Visible Light Anticancer Properties

et al. 2019

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In this study, the synthesis of smart, polymerically embedded titanium dioxide (TiO2) nanoparticles aimed to exhibit photo-induced anticancer properties under visible light irradiation is investigated. The TiO2 nanoparticles were prepared by utilizing the sol gel method with different dopants, including nitrogen (N-doped), iron (Fe-doped), and nitrogen and iron (Fe,N-doped). The dopants were embedded in an interpenetrating (IP) network microgel synthesized by stimuli responsive poly (N-Isopropylacrylamide-co-polyacrylicacid)–pNipam-co-PAA forming composite particles. All the types of produced particles were characterized by X-ray powder diffraction, micro-Raman, Fourier-transform infrared, X-ray photoelectron, ultra-violet-visible spectroscopy, Field Emission Scanning Electron, Transmission Electron microscopy, and Dynamic Light Scattering techniques. The experimental findings indicate that the doped TiO2 nanoparticles were successfully embedded in the microgel. The N-doped TiO2 nano-powders and composite particles exhibit the best photocatalytic degradation of the pollutant methylene blue under visible light irradiation. Similarly, the highly malignant MDA-MB-231 breast cancer epithelial cells were susceptible to the inhibition of cell proliferation at visible light, especially in the presence of N-doped powders and composites, compared to the non-metastatic MCF-7 cells, which were not affected.

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Section: Introductionmentioning

confidence: 99%

Development of Smart Composites Based on Doped-TiO2 Nanoparticles with Visible Light Anticancer Properties

et al. 2019

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“…While the mineralization of CV can be confirmed by this approach, the degradation products were left unaccounted. In a different study, composite of CeO2-ZnO showed remarkable photocatalytic performance in the degradation of crystal violet with rate constant of 0.0125 min -1 under UV irradiation [16]. We invoke the use of impregnation derived 1 wt% MgO-ZnO composite in this study, for the photocatalytic degradation of crystal violet.…”

Section: Introductionmentioning

confidence: 87%

Optimised Photocatalytic Degradation of Crystal Violet Over 1wt% MgO-ZnO Composite Catalyst

Gaya

Umar

2019

JST

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Crystal violet is a member of toxic, environmentally ubiquitous basic dyes that must be eliminated. In this paper, the photocatalytic removal efficiency of this dye by a 1wt % MgO-ZnO nanocomposite, synthesized by impregnating ZnO with Mg(NO3)2 is reported. The catalyst was characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM) and UV-Vis spectrometry. The degradation and mineralization of crystal violet were monitored UV-Visible spectrophotometer and total organic carbon analyzer. The XRD analysis of the catalyst revealed a hexagonal wurtzite structure. The effect of operating variables such as initial crystal violet concentration, catalyst concentration and pH of the solution was optimized using the Box-Behnken design and response surface methodology. The degradation model was statistically remarkable with p<0.0001%. With 10 mg/L initial crystal violet solution, the maximum degradation efficiency of prepared catalyst was found to be 94.6 %. The degradation kinetics agreed with the Langmuir-Hinshelwood model. However, only 60% of total crystal violet-based organic carbon was removed from the solution due to recalcitrance of this environmentally important compound.

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“…The band gap of titania can be altered by appropriate use of dopants. Cerium oxide is one such dopant to be used with titania to improve the efficiency as photocatalyst [ 112 ]. It has high capacity to store or release oxygen under redox conditions.…”

Section: Applications Of Titania As Photocatalystmentioning

confidence: 99%

Nanocomposites containing titanium dioxide for environmental remediation

Alsheheri

2021

Designed Monomers and Polymers

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Titania is considered to be one of the most versatile material in its nanoform. Scientific community looks towards it to address various pressing global problems. One such problem is aquatic pollution arising from organic chemicals such as dyes, pesticides, antibiotics etc. due to industrial, domestic and agricultural activities. Titania proves to be very effective to address this problem owing to its superior photocatalytic properties. In this review, we will review the recent advances in titania-based nanocomposites. The recent advances discussed in this review include synthesis of titania, modification of titania, exploration of various supports such as silica, carbon, graphene etc., that is documented to enhance its environmental remediation properties.

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Enhanced photocatalytic performance of CeO2–TiO2 nanocomposite for degradation of crystal violet dye and industrial waste effluent

Cited by 29 publications

References 26 publications

Development of Smart Composites Based on Doped-TiO2 Nanoparticles with Visible Light Anticancer Properties

Development of Smart Composites Based on Doped-TiO2 Nanoparticles with Visible Light Anticancer Properties

Optimised Photocatalytic Degradation of Crystal Violet Over 1wt% MgO-ZnO Composite Catalyst

Nanocomposites containing titanium dioxide for environmental remediation

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