High-performing TiO<sub>2</sub> flower-like nanostructures based on flexible MWCNTs for dual-band terahertz absorption

Singh, Guruvandra; Nimanpure, Subhash; Acharyya, Nityananda; Rane, Shreeya; Roychowdhury, Dibakar; Singh, Bhanu Pratap; Tawale, Jai S; Sharma, Rina; Jewariya, Mukesh

doi:10.1039/d3tc01244a

Cited by 3 publications

(2 citation statements)

References 66 publications

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“…Upon examining figure 8(a), it became apparent that the THz signals exhibited a decrease in the amplitude of roughly 54% compared to the reference signal, along with a time delay in the electric field profile of the sample by ∆t = 2.73 ps. Calculations of the absorption coefficient along with transmission and refractive indexes were performed following the existing literature [26,47].…”

Section: Thz-tdsmentioning

confidence: 99%

“…Li and Cheng have introduced an adaptable dual-band terahertz ideal metamaterial absorber [25]. Singh et al investigated the dual band terahertz absorption TiO 2 nanostructure and demonstrated that it provides a means to improve the tunable detection within the terahertz frequency range [26]. Yet, the practical utility of single-band and dual-band absorption remains restricted in numerous applications, necessitating a device with broadband/multiband absorption capabilities.…”

Section: Introductionmentioning

confidence: 99%

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Broadband terahertz absorption and Q-switching behavior of 5-chloro-2-nitroaniline (5C2NA) crystals

Singh,

Pramod

et al. 2024

J. Opt.

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Growth of transparent 5-chloro-2-nitroaniline (5C2NA) crystals was achieved through the slow evaporation technique. Analysis via X-ray diffraction (XRD) and Fourier Transform Infrared (FTIR) spectroscopy confirmed the crystalline nature of the organic crystals and revealing distinct molecular fingerprints of 5C2NA respectively. UV-VIS and Photoluminescence (PL) spectroscopy were employed to study the material's band gap and ground state absorption respectively. Thermogravimetric analysis (TGA) analysis indicated the stability of the grown crystals up to 211ºC. Dielectric measurements and Urbach plot suggested the presence of fewer defects in 5C2NA crystals. Time domain terahertz spectroscopy was utilized to observe the variation of absorption coefficient and refractive index in the terahertz frequency regime. Nonlinear optical effects such as saturable absorption (SA) and reverse saturable absorption (RSA), are pivotal in the development of all-optical logic gates. The transition between SA and RSA possesses a significant importance in optoelectronic applications. In this study, we investigate the 5C2NA crystal, revealing its ability to exhibit both SA and RSA under Z scan technique with varying pump intensities. The switching properties observed in 5C2NA can be harnessed for applications such as all-optical logic gates, rapid optical switching, optical limiting, mode storage, and more.

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Section: Thz-tdsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Broadband terahertz absorption and Q-switching behavior of 5-chloro-2-nitroaniline (5C2NA) crystals

Singh,

Pramod

et al. 2024

J. Opt.

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The support effect on the performance of a MOF-derived Co-based nano-catalyst in Fischer Tropsch synthesis

Safari Yazd,

Motahari,

Rahimpour

et al. 2024

Nanoscale

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Green Synthesis of Silver-Incorporated Rutile TiO2 for Enhanced Photocatalytic Degradation of Ciprofloxacin and Carmine G Dye Pollutants

Abd El-Lateef,

Zeng,

Khalaf

et al. 2024

Catalysts

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Developing sustainable TiO2-based photocatalysts for environmental remediation is an increasingly significant area of research. However, a limited understanding of the long-term ecological impact of these photocatalysts poses a barrier to their practical and industrial-scale applications. To address this challenge, this work employed a green synthesis approach to prepare an Ag/TiO2 photocatalyst designed to improve environmental compatibility and enhance efficiency in pollutant degradation. Ag/TiO2 was synthesized using mushroom biomass as a natural capping to evaluate its effectiveness in the degradation of ciprofloxacin (CIP) and azo Carmine G dye (ACGD). The mushroom biomass served as a renewable cost-effective support for Ag incorporation, while the Ag modification of TiO2 could enhance the photocatalyst’s performance. Structural, chemical, and morphological characterization techniques were applied and showed that the Ag/TiO2 particles consisted of irregularly shaped nanoparticles. The CIP removal reached 82.46% after 300 min and ACGD removal efficiency went up to 83.64%. The enhanced performance is attributed to the unique electronic and structural properties of Ag-modified TiO2. This study highlights the potential of Ag/TiO2 synthesized via green methods as a high-performance photocatalyst for the effective remediation of pharmaceutical and dye pollutants in wastewater treatment applications.

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High-performing TiO₂ flower-like nanostructures based on flexible MWCNTs for dual-band terahertz absorption

Abstract: In the age of science and technology, the nanostructure plays a vital role for development of devices based on electronics and photonics. In this research work, we fabricated the TiO2...

Cited by 3 publications

References 66 publications

Broadband terahertz absorption and Q-switching behavior of 5-chloro-2-nitroaniline (5C2NA) crystals

Broadband terahertz absorption and Q-switching behavior of 5-chloro-2-nitroaniline (5C2NA) crystals

The support effect on the performance of a MOF-derived Co-based nano-catalyst in Fischer Tropsch synthesis

Green Synthesis of Silver-Incorporated Rutile TiO2 for Enhanced Photocatalytic Degradation of Ciprofloxacin and Carmine G Dye Pollutants

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High-performing TiO2 flower-like nanostructures based on flexible MWCNTs for dual-band terahertz absorption

Abstract: In the age of science and technology, the nanostructure plays a vital role for development of devices based on electronics and photonics. In this research work, we fabricated the TiO2...

Cited by 3 publications

References 66 publications

Broadband terahertz absorption and Q-switching behavior of 5-chloro-2-nitroaniline (5C2NA) crystals

Broadband terahertz absorption and Q-switching behavior of 5-chloro-2-nitroaniline (5C2NA) crystals

The support effect on the performance of a MOF-derived Co-based nano-catalyst in Fischer Tropsch synthesis

Green Synthesis of Silver-Incorporated Rutile TiO2 for Enhanced Photocatalytic Degradation of Ciprofloxacin and Carmine G Dye Pollutants

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Product

Resources

About

High-performing TiO₂ flower-like nanostructures based on flexible MWCNTs for dual-band terahertz absorption