Comparative photocatalytic performance and therapeutic applications of zinc oxide (ZnO) and neodymium-doped zinc oxide (Nd–ZnO) nanocatalysts against Acid Yellow-3 dye: kinetic and thermodynamic study of the reaction and effect of various parameters

Khan, Usman Ali; Jan, F. Akbar; Ullah, Rahat; Wajidullah, -; Ullah, Naimat; Salman, -

doi:10.1007/s10854-021-07483-0

Cited by 14 publications

(2 citation statements)

References 65 publications

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“…This sharp decrease was not observed in the 0.5% Nd composite. This weight loss at the temperature range 200–260°C can be attributed to crystallization of as‐prepared material during the process of heating [27].…”

Section: Resultsmentioning

confidence: 99%

Antibacterial activity of novel synthesized chitosan‐graft‐poly(N‐tertiary butylacrylamide)/neodymium composites for biomedical application

et al. 2023

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In this present study, composites of chitosan‐graft‐poly(N‐tertiary butylacrylamide) (CH‐graft‐poly(N‑tert‑BAAm)) copolymer, with Neodymium (Nd), an important rare earth element, were prepared by precipitation technique. Nd was successfully incorporated into the polymer of different weight percentages (0.5%, 1%, and 2%) without any degradation. The effect of neodymium additives on the structural, morphological, and antibacterial activities against gram‐positive bacteria and gram‐negative bacteria of the polymer was analyzed using various instrument techniques. X‐ray diffraction (XRD) results together with Fourier Transform Infrared (FT‐IR), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS) studies confirmed the morphology of Nd‐doped CH‐graft‐poly(N‑tert‑BAAm) composites without any other impurities. The antibacterial effect of Nd was studied by adding it to the copolymer in a weight ratio of 0.5%–2%. The antibacterial effect of neodymium concentration on four different strains of bacteria was investigated: Escherichia coli (ATCC 25922) (E. coli), Pseudomonas aeruginosa (DSM 50071) (P. aeruginosa), Bacillus subtilis (DSM 1971) (B. subtilis), and Staphylococcus aureus subsp. aureus (ATCC 25923) (S. aureus). The antibacterial activities of the obtained composites were determined using the Agar Well Diffusion Assay Method. Experimental results show that Nd binds well to CH‐graft‐poly(N‑tert‑BAAm). Activity against E. coli, P. aeruginosa, B. subtilis, and S. aureus subsp. aureus creates a potential for pharmaceutical and biomedical applications.

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Section: Resultsmentioning

confidence: 99%

Antibacterial activity of novel synthesized chitosan‐graft‐poly(N‐tertiary butylacrylamide)/neodymium composites for biomedical application

et al. 2023

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“…Equation 8 can be considered as first order which is also reported by different authors in the existing literature. 41,42 If we consider the reaction as second order (n = 2) then the integrated form of Eq. 6 can be written as dye t k t dye…”

Section: Resultsmentioning

confidence: 99%

Tin Decorated Zinc Sulphide Nanoparticles for Photocatalytic Degradation of Bromophenol Blue Dye and Their Therapeutic Applications: A Kinetic and Thermodynamic Approach

Shah

Jan

Ullah

et al. 2022

ECS J. Solid State Sci. Technol.

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Zinc sulphide (ZnS) and Tin-doped Zinc sulphide (Sn-ZnS) nanoparticles (NPs) were synthesized by co precipitation method. The produced NPs were characterized using UV-Vis spectroscopy, XRD, EDX,SEM, FTIR, TGA and Photoluminescence (PL) spectroscopy. With the addition of 3% Sn the band gap of ZnS reduced from 3.50 to 3.10 eV. TGA study revealed that synthesized NPs are very stable to temperature and the total weight loss was only 22.8% and 21.5% in ZnS and Sn-ZnS nanocatalyst. The photoluminescence (PL) intensity showed that with Tin-doping the peak in Sn-ZnS shifted to longer wavelength. The degradation of Bromophenol blue over both catalysts followed first order kinetics. The activation energy calculated for the photodegradation reaction was 53.2 and 67.55 kj/mol using pure ZnS and Sn-ZnS NPs, respectively. About 86% and 96% dye degradation was noticed in 300 minutes. A high percentage of dye degradation was found at low concentration (10 ppm) and at optimal dosage (0.03 g) of the catalyst. The rate of Bromophenol blue dye degradation was found to increase with increase in temperature (up to 70°C) and pH (9.5) of the medium. Sn-ZnS NPs showed good antibacterial and antioxidant activities compared to bare ZnS. Both nanoparticles are found to be non biocompatible.

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Enhanced mitigation of acidic and basic dyes by ZnO based nano-photocatalysis: current applications and future perspectives

Saif Al Essai,

Moheyelden,

Bosu

et al. 2024

Environ Geochem Health

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Comparative photocatalytic performance and therapeutic applications of zinc oxide (ZnO) and neodymium-doped zinc oxide (Nd–ZnO) nanocatalysts against Acid Yellow-3 dye: kinetic and thermodynamic study of the reaction and effect of various parameters

Cited by 14 publications

References 65 publications

Antibacterial activity of novel synthesized chitosan‐graft‐poly(N‐tertiary butylacrylamide)/neodymium composites for biomedical application

Antibacterial activity of novel synthesized chitosan‐graft‐poly(N‐tertiary butylacrylamide)/neodymium composites for biomedical application

Tin Decorated Zinc Sulphide Nanoparticles for Photocatalytic Degradation of Bromophenol Blue Dye and Their Therapeutic Applications: A Kinetic and Thermodynamic Approach

Enhanced mitigation of acidic and basic dyes by ZnO based nano-photocatalysis: current applications and future perspectives

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