Comparison of facile synthesized N doped, B doped and undoped ZnO for the photocatalytic removal of Rhodamine B

Dindar, Bircan; Güler, Ali Can

doi:10.1016/j.enmm.2018.09.001

Cited by 27 publications

(12 citation statements)

References 40 publications

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“…39,40 Doping of ZnO with nitrogen could enhance its catalytic activity by lowering the recombination rate of electron-hole pairs and enhancing the absorption of visible light. [41][42][43] Hence, the ZnO@N-doped C might show good catalytic activities. Hence, the combination of N-doped C and ZnO would enhance the catalytic activity towards water contaminants.…”

Section: Introductionmentioning

confidence: 99%

Hierarchical porous zeolitic imidazolate frameworks (ZIF-8) and ZnO@N-doped carbon for selective adsorption and photocatalytic degradation of organic pollutants

2022

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Section: Introductionmentioning

confidence: 99%

Hierarchical porous zeolitic imidazolate frameworks (ZIF-8) and ZnO@N-doped carbon for selective adsorption and photocatalytic degradation of organic pollutants

2022

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“…Due to the higher concentration of electron–hole pairs in n‐type and p‐type doped ZnO nanostructures, these materials have shown promising improvements in photocatalytic degradation of dyes. In a study by Dindar and Güler [ 269 ] ZnO three nanostructures were introduced: N‐doped ZnO, B‐doped ZnO, and undoped ZnO, and the effect of different dopants have been studied. The study revealed that nitrogen doped ZnO formed a p‐type material which showed a decrease in the degradation time.…”

Section: Photocatalysis Related Applications In Uv Sensingmentioning

confidence: 99%

UV Photochromism in Transition Metal Oxides and Hybrid Materials

Kayani

Kuriakose

Monshipouri

et al. 2021

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Limited levels of UV exposure can be beneficial to the human body. However, the UV radiation present in the atmosphere can be damaging if levels of exposure exceed safe limits which depend on the individual the skin color. Hence, UV photochromic materials that respond to UV light by changing their color are powerful tools to sense radiation safety limits. Photochromic materials comprise either organic materials, inorganic transition metal oxides, or a hybrid combination of both. The photochromic behavior largely relies on charge transfer mechanisms and electronic band structures. These factors can be influenced by the structure and morphology, fabrication, composition, hybridization, and preparation of the photochromic materials, among others. Significant challenges are involved in realizing rapid photochromic change, which is repeatable, reversible with low fatigue, and behaving according to the desired application requirements. These challenges also relate to finding the right synergy between the photochromic materials used, the environment it is being used for, and the objectives that need to be achieved. In this review, the principles and applications of photochromic processes for transition metal oxides and hybrid materials, photocatalytic applications, and the outlook in the context of commercialized sensors in this field are presented.

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“…Up to this time, even though there are considerable photocatalysts of metal-doped TiO 2 and metal-doped ZnO, there are rare studies on non-metal-doped (Dindar and Guler 2018 ). It is recognized that boron (B) and nitrogen (N) are considered to replace atoms of oxygen.…”

Section: Introductionmentioning

confidence: 99%

“…Nitrogen doping has owned a major concern because the nitrogen and oxygen ionic radius is similar, the energy states of N 2p and O 2p also are similar, and highly soluble and formation energy is low (Dindar and Guler 2018 ). Accordingly, nitrogen in a low concentration (about 2–5% wt) was used to avoid the decreasing of bandgap energy for both two catalysts TiO 2 and ZnO.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of N-doped ZnO and N-doped TiO2 beads for photocatalytic degradation of phenol and ammonia

Mandor

Amin

Abdelwahab

et al. 2022

Environ Sci Pollut Res

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N-doped ZnO beads (NZB) and N-doped TiO2 beads (NTB) were synthesized via a modified sol–gel technique utilizing chitosan (CS)/polyvinyl alcohol (PVA) hydrogel beads as basic support for photocatalyst. Urea was used as a source of nitrogen in the preparation of N-doped ZnO beads, while ammonium acetate, CH3COONH4, was used as a nitrogen source in the production of N-doped TiO2 beads. The characteristics of synthesized beads were identified by scanning electron microscope (SEM), X-ray photoelectron spectroscopy analysis (XPS), X-ray diffraction (XRD), N2 adsorption–desorption isotherms, BET surface area, Fourier transform infrared (FT-IR) measurements, and diffuse reflectance spectroscopy (DRS) studies. The use of the nitrogen doping method for photocatalyst was performed to adjust the bandgap and electrical properties of ZnO and TiO2 by establishing acceptor defects. NZB and NTB with the intrinsic donor defect of oxygen vacancy and the nitrogen-to-oxygen acceptor defect could be activated by a less-energy UV consumption for efficient pollutant degradation. The results indicated that the as-synthesized NZB achieved much higher degradation activity than NTB, commercial ZnO, and TiO2 in the decomposition of a binary mixture composed of ammonia and phenol under UV light irradiation.

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Comparison of facile synthesized N doped, B doped and undoped ZnO for the photocatalytic removal of Rhodamine B

Cited by 27 publications

References 40 publications

Hierarchical porous zeolitic imidazolate frameworks (ZIF-8) and ZnO@N-doped carbon for selective adsorption and photocatalytic degradation of organic pollutants

Hierarchical porous zeolitic imidazolate frameworks (ZIF-8) and ZnO@N-doped carbon for selective adsorption and photocatalytic degradation of organic pollutants

UV Photochromism in Transition Metal Oxides and Hybrid Materials

Preparation and characterization of N-doped ZnO and N-doped TiO2 beads for photocatalytic degradation of phenol and ammonia

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