Supporting of mixed ZnS–NiS semiconductors onto clinoptilolite nano-particles to improve its activity in photodegradation of 2-nitrotoluene

Mohammadyari, Parisa; Nezamzadeh‐Ejhieh, Alireza

doi:10.1039/c5ra12608h

Cited by 86 publications

(15 citation statements)

References 48 publications

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“…The crystallographic phase of the synthesized TiO 2 on the GAC sample was determined using a JNR (MPD300) X-ray diffractometer with a Cu anode at = 0.15060 nm, a voltage of 40 kV, and current intensity of 30 mA. The mean crystallite size was calculated using the Scherrer formula [45,46]:…”

Section: Methodsmentioning

confidence: 99%

Enhanced Photocatalytic Degradation and Mineralization of Furfural Using UVC/TiO₂/GAC Composite in Aqueous Solution

Ghasemi

Anvaripour

Jorfi

et al. 2016

International Journal of Photoenergy

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Titanium dioxide nanoparticles were immobilized on granular activated carbon (GAC) as a porous and low-density support for photocatalytic degradation of furfural. The TiO2/GAC composite was synthetized using the simple sol-gel method and fully characterized. The effects of the operational parameters of furfural concentration (200–700 mg/L), initial pH (2–12), TiO2/GAC composite dosage (1–3.5 g/L), and irradiation time (20–120 min) were studied. The synthetized TiO2/GAC composite exhibited a total pore volume of 0.13 cm3/g and specific surface area of 35.91 m2/g. Removal efficiency of up to 95% was observed at initial pH of 10, TiO2/GAC dosage of 2.5 g/L, irradiation time of 80 min, and initial furfural concentration of 500 mg/L. The photocatalyst could be reused at least four consecutive times with a mere 2% decrease in furfural removal efficiency. Mineralization efficiency of 94% was obtained within 80 min. Pseudo-first-order kinetics best fit the photocatalytic degradation of furfural under experimental conditions.

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Section: Methodsmentioning

confidence: 99%

Enhanced Photocatalytic Degradation and Mineralization of Furfural Using UVC/TiO₂/GAC Composite in Aqueous Solution

Ghasemi

Anvaripour

Jorfi

et al. 2016

International Journal of Photoenergy

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“…Universally speaking, whether the photocatalytic reaction can succeed in proceeding depends on the generated active radicals such as cO 2 À , cOH radicals. [47][48][49] Therefore, we test the photocatalytic degradation efficiency of the PTET-T-COOH/g-C 3 N 4 -1% photocatalyst with various scavengers under visible light irradiation which is demonstrated in Fig. 9a.…”

Section: The Separation and Transfer Of Charge Carriermentioning

confidence: 99%

Fabrication of metal-free PTET-T-COOH/g-C₃N₄heterostructure for enhancing photocatalytic activity

et al. 2020

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In this research work, we successfully fabricated a range of PTET-T-COOH/g-C 3 N 4 heterostructures via a simple method. The as-prepared PTET-T-COOH/g-C 3 N 4 heterostructures show enhanced photocatalytic degradation activity as compared to pure g-C 3 N 4 . For the photocatalytic degradation of RhB, the optimal PTET-T-COOH/g-C 3 N 4 -1% heterostructure is nearly 3.83 times that of the pure g-C 3 N 4 . The enhancement of photocatalytic performance is ascribed to three aspects: one is the strong interaction between PTET-T-COOH and g-C 3 N 4 ; the second is the larger surface area of the PTET-T-COOH/g-C 3 N 4 heterostructure compared to that of pure g-C 3 N 4 ; the third is the effectively improved transferability of photogenerated carriers. In addition, the whole photocatalytic reaction mechanism over the PTET-T-COOH/g-C 3 N 4 heterostructure is provided. This work may offer a hopeful method to synthesize any other heterostructure with high stability and superior photocatalytic activity.rsc.li/rsc-advances 9116 | RSC Adv., 2020, 10, 9116-9125 This journal is Fig. 8 N 2 adsorption-desorption isotherms of as-prepared g-C 3 N 4 and PTET-T-COOH/g-C 3 N 4 -1% photocatalyst.9122 | RSC Adv., 2020, 10, 9116-9125This journal is

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“…In fact, more effective separation of the e -/h + pairs is achieved from the Ti defect states and surface Ti-O-Ti sites (or terminal Ti-OH), which can trap the eand h + , respectively. In general, oxygen vacancies 11 , surface Ti 3+ 12 , Ti interstitial or even ions in the lattice or in the near surface of TiO2 13 are responsible by formation of intra-bandgap energy levels, which are of great importance to retard the rate of e -/h + recombination process and at the same time it can enable the absorption of light by TiO2 not only in the ultraviolet but also in the visible region of the electromagnetic spectrum [14][15][16] .…”

Section: Basic Principles Of Photocatalysismentioning

confidence: 99%

Photocatalytic and smart asphalt mixtures: a brief overview

Segundo

Freitas

Júnior

et al. 2019

Fourth International Conference on Applications of Optics and Photonics

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Nowadays, there is an increasing concern about the use of less harmful techniques to the environment, and about road safety in Transportation Engineering. Heterogeneous photocatalysis based on the application of semiconductors materials onto asphalt mixtures is a promising technology because it can mitigate air pollution and road accidents. The functionalized asphalt mixtures with photocatalytic capability can degrade pollutants, such as damaging gases and oil/greases over their surface from specific reactions triggered by sunlight photons, providing significant environmental and social benefits. In this communication, a brief review of photocatalysis applied in asphalt mixtures will be presented.

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Supporting of mixed ZnS–NiS semiconductors onto clinoptilolite nano-particles to improve its activity in photodegradation of 2-nitrotoluene

Abstract: Migration of photo-generated electrons from the NiS-Cb level to ZnS-Cb prevents e–h recombination, causing a significant increase in photocatalytic activity.

Cited by 86 publications

References 48 publications

Enhanced Photocatalytic Degradation and Mineralization of Furfural Using UVC/TiO₂/GAC Composite in Aqueous Solution

Enhanced Photocatalytic Degradation and Mineralization of Furfural Using UVC/TiO₂/GAC Composite in Aqueous Solution

Fabrication of metal-free PTET-T-COOH/g-C₃N₄heterostructure for enhancing photocatalytic activity

Photocatalytic and smart asphalt mixtures: a brief overview

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Supporting of mixed ZnS–NiS semiconductors onto clinoptilolite nano-particles to improve its activity in photodegradation of 2-nitrotoluene

Abstract: Migration of photo-generated electrons from the NiS-Cb level to ZnS-Cb prevents e–h recombination, causing a significant increase in photocatalytic activity.

Cited by 86 publications

References 48 publications

Enhanced Photocatalytic Degradation and Mineralization of Furfural Using UVC/TiO2/GAC Composite in Aqueous Solution

Enhanced Photocatalytic Degradation and Mineralization of Furfural Using UVC/TiO2/GAC Composite in Aqueous Solution

Fabrication of metal-free PTET-T-COOH/g-C3N4heterostructure for enhancing photocatalytic activity

Photocatalytic and smart asphalt mixtures: a brief overview

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Enhanced Photocatalytic Degradation and Mineralization of Furfural Using UVC/TiO₂/GAC Composite in Aqueous Solution

Enhanced Photocatalytic Degradation and Mineralization of Furfural Using UVC/TiO₂/GAC Composite in Aqueous Solution

Fabrication of metal-free PTET-T-COOH/g-C₃N₄heterostructure for enhancing photocatalytic activity