Crystallization time-induced microstructural evolution and photoelectrochemical properties of ternary Ag@AgBr/TiO2 nanorod arrays

Wang, Yanfen; Yang, Haocheng; Yun, Hai; Gao, Juan; Liu, Yin; Zhang, Miao; He, Gang; Sun, Zhaoqi

doi:10.1016/j.jallcom.2021.163370

Cited by 13 publications

(4 citation statements)

References 34 publications

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“…According to theoretical analysis, the conduction band (CB) potential of AgBr is more negative than the CB potential of TiO 2 and the Fermi level of Ag 0 nanoparticles. [64][65][66] Therefore, the electrons on the CB of AgBr can rapidly transfer to the CB of TiO 2 (eqn (2)) or be captured by Ag 0 nanoparticles through Schottky barrier (eqn (3)). 67 The electrons on the CB of TiO 2 can further transfer to Ti 3 C 2 (eqn (4)), since the CB potentials of TiO 2 is more negative than the Fermi level of the Ti 3 C 2 .…”

Section: Resultsmentioning

confidence: 99%

Synthesis of AgBr/Ti₃C₂@TiO₂ ternary composite for photocatalytic dehydrogenation of 1,4-dihydropyridine and photocatalytic degradation of tetracycline hydrochloride

Qing

Liu

et al. 2023

RSC Adv.

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Section: Resultsmentioning

confidence: 99%

Synthesis of AgBr/Ti₃C₂@TiO₂ ternary composite for photocatalytic dehydrogenation of 1,4-dihydropyridine and photocatalytic degradation of tetracycline hydrochloride

Qing

Liu

et al. 2023

RSC Adv.

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“…EIS analysis was performed to evaluate the photoelectrochemical performance of the synthesized nanomaterials by comprehending their charge transfer activity. The radius of the arc depicts the charge transfer capability where small the radius corresponds to lower transfer resistance of electrons at the surface resulting in a higher transfer of charge (Angela et al, 2021;Wang et al, 2022). It can be seen from Fig.…”

Section: Photoelectrochemical Performancementioning

confidence: 98%

Elucidating Synergistic Effect of In-Situ Hybrid Process Towards Paraquat Abatement

Pandey,

Dhindsa,

Verma

et al. 2024

Preprint

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Presence of non-biodegradable organic compounds, mainly pesticides in water bodies peril humans as well as aquatic life. Paraquat (PQ) is one such widely used Class II herbicide associated with Parkinson’s disease. Herein, pristine TiO2 (PT), as well as metal (Fe-PT, Ni-PT) and nonmetal (C-PT, S-PT), modified TiO2 was synthesized using hydrothermal treatment for mineralization and degradation of PQ. The crystallite size from XRD exhibited the prepared catalysts to be nanomaterials while FESEM confirmed the nanorod formation. Moreover, morphological analysis established the occurrence of doping in PT. Through optical properties, reduction in band gap from 3.2 eV to 2.4 eV was found which was accompanied by decrease in electron-hole recombination rate. Further, nanocomposites were investigated for PQ removal with S-PT depicting 93% degradation under solar radiations followed by Fe-PT degrading 87% PQ indicating that with optimum doping levels and proper reduction of band gap, TiO2 can be made more enthusiastic towards degradation and remediation process. Further, hybrid process employing photocatalysis and photo-Fenton simultaneously was utilised by synthesising Fe-S-PT, a codoped catalyst. This codoped Fe-S-PT resulted in a sharp decrement of 47% in processing time which is attributed to the presence of OH˙ and e−. Moreover, a degradation mechanism for Fe-S-PT was proposed along with the evaluation of extent of mineralization taking place. Lately, intermediates formed during the process were identified. Overall, study is extremely significant towards providing a practical and economical solution for PQ degradation using hybrid process within 80 mins at the benign pH of 6.3.

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“…Titanium dioxide (TiO 2 ) is the best white pigment due to its excellent optical properties, which is widely used in coatings, plastics, paper, ink, and other industries. However, TiO 2 particles generate electrons and holes under ultraviolet light and then react with water and oxygen to generate free radicals, which leads to the degradation of organic matter around the TiO 2 particles. − The photocatalytic performance of TiO 2 causes defects such as breakage and yellowing of the adhesive. In order to increase the weather resistance of TiO 2 particles, the surface of TiO 2 particles was coated with an inert oxide barrier film, such as silica and alumina. , A liquid-phase deposition method was usually used for inorganic thin-film coating.…”

Section: Introductionmentioning

confidence: 99%

Surface-Modified TiO₂@SiO₂ Nanocomposites for Enhanced Dispersibility and Optical Performance to Apply in the Printing Process as a Pigment

et al. 2023

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The grafted modification TiO 2 @SiO 2 composite was fabricated by a liquidphase deposition method with Na 2 SiO 3 and a grafting reaction with a silane coupling agent. First, the TiO 2 @SiO 2 composite was prepared, and the effect of deposition rate and silica content on the morphology, particle size, dispersibility, and pigmentary property of TiO 2 @SiO 2 composites was investigated by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FTIR) spectroscopy, energy-dispersive X-ray spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS), and ζ-potential. The islandlike TiO 2 @SiO 2 composite had a good particle size and printing performance compared with the dense TiO 2 @SiO 2 composite. The presence of Si was confirmed by EDX elemental analysis and XPS, and a peak at 980 cm −1 belonging to Si−O was observed in the FTIR spectrum, confirming the presence of SiO 2 anchored at TiO 2 surfaces via Si−O−Ti bonds. Then, the islandlike TiO 2 @SiO 2 composite was modified by grafting with a silane coupling agent. The effect of the silane coupling agent on the hydrophobicity and dispersibility was investigated. The peaks at 2919 and 2846 cm −1 belong to CH 2 in the FTIR spectrum, and Si−C in the XPS confirmed the grafting of silane coupling agent to the TiO 2 @SiO 2 composite. The grafted modification of the islandlike TiO 2 @SiO 2 composite using 3-triethoxysilylpropylamine endowed it with weather durability, dispersibility, and good printing performance.

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Crystallization time-induced microstructural evolution and photoelectrochemical properties of ternary Ag@AgBr/TiO2 nanorod arrays

Cited by 13 publications

References 34 publications

Synthesis of AgBr/Ti₃C₂@TiO₂ ternary composite for photocatalytic dehydrogenation of 1,4-dihydropyridine and photocatalytic degradation of tetracycline hydrochloride

Synthesis of AgBr/Ti₃C₂@TiO₂ ternary composite for photocatalytic dehydrogenation of 1,4-dihydropyridine and photocatalytic degradation of tetracycline hydrochloride

Elucidating Synergistic Effect of In-Situ Hybrid Process Towards Paraquat Abatement

Surface-Modified TiO₂@SiO₂ Nanocomposites for Enhanced Dispersibility and Optical Performance to Apply in the Printing Process as a Pigment

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Crystallization time-induced microstructural evolution and photoelectrochemical properties of ternary Ag@AgBr/TiO2 nanorod arrays

Cited by 13 publications

References 34 publications

Synthesis of AgBr/Ti3C2@TiO2 ternary composite for photocatalytic dehydrogenation of 1,4-dihydropyridine and photocatalytic degradation of tetracycline hydrochloride

Synthesis of AgBr/Ti3C2@TiO2 ternary composite for photocatalytic dehydrogenation of 1,4-dihydropyridine and photocatalytic degradation of tetracycline hydrochloride

Elucidating Synergistic Effect of In-Situ Hybrid Process Towards Paraquat Abatement

Surface-Modified TiO2@SiO2 Nanocomposites for Enhanced Dispersibility and Optical Performance to Apply in the Printing Process as a Pigment

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Synthesis of AgBr/Ti₃C₂@TiO₂ ternary composite for photocatalytic dehydrogenation of 1,4-dihydropyridine and photocatalytic degradation of tetracycline hydrochloride

Synthesis of AgBr/Ti₃C₂@TiO₂ ternary composite for photocatalytic dehydrogenation of 1,4-dihydropyridine and photocatalytic degradation of tetracycline hydrochloride

Surface-Modified TiO₂@SiO₂ Nanocomposites for Enhanced Dispersibility and Optical Performance to Apply in the Printing Process as a Pigment