Synthesis and characterization of Nd(OH)3-ZnO composites for application in photocatalysis and disinfection

Costa, Sabryna Isabelly Giordani da; Cauneto, Vinícius D.; Fiorentin-Ferrari, Leila Denise; Almeida, Priscila B.; Oliveira, Regiane Cristina de; Longo, E.; Módenes, Aparecido Nivaldo

doi:10.1016/j.cej.2019.123737

Cited by 20 publications

(4 citation statements)

References 66 publications

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“…It has been discovered that the acquired findings are comparable to prior neodymium complexes [30, 31]. Like all rare earth metals, neodymium compounds have low to moderate toxicity to humans but are toxic to microorganisms [32–34].…”

Section: Discussionmentioning

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: Discussionmentioning

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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“…36,37 ZnO materials with abundant OV have attracted much attention in the fields of chemical catalysis and photocatalysis. 38,39 Various physicochemical properties of ZnO, including molecular structure, optical properties, and surface properties, are closely related to OV. 40−43 For example, Zheng et al 44 found that OV can provide anchoring and highly dispersed sites for precious metals, which enhanced the dissociation of C−C bonds in chlorine-containing VOCs.…”

Section: Introductionmentioning

confidence: 99%

“…The presence of an oxygen vacancy (OV) arises due to the separation of oxygen atoms from the crystal structure in metal oxides or other compounds containing oxygen. , The OV can easily generate under reactions such as high-energy particle bombardment, vacuum calcination, ultrasonic treatment, or chemical reduction. , ZnO materials with abundant OV have attracted much attention in the fields of chemical catalysis and photocatalysis. , Various physicochemical properties of ZnO, including molecular structure, optical properties, and surface properties, are closely related to OV. − For example, Zheng et al found that OV can provide anchoring and highly dispersed sites for precious metals, which enhanced the dissociation of C–C bonds in chlorine-containing VOCs. Gurylev et al found that introducing oxygen vacancies in the ZnO lattice can reduce the minimum conduction band energy level, improving the light absorption of ZnO, and effectively enhancing the photocatalytic activity of ZnO.…”

Section: Introductionmentioning

confidence: 99%

Ultraviolet Laser-Induced Selective Metallization on White Polymers Using Oxygen Vacancy Laser Sensitizer for IoT Sensors

Xu,

Yu,

Feng

et al. 2023

Ind. Eng. Chem. Res.

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“…Satisfying the needs of various industries, such as metallurgy, nuclear energy, manufacture of optical, magnetic, luminescent, and laser materials, and petrochemicals most often requires high purity individual REEs. Among the rare earth elements neodymium is important for doping alloys [ 1 ] and manufacturing permanent magnets [ 2 ], laser production [ 3 ], and preparing catalysts [ 4 , 5 ]. Due to their similar physical and chemical properties the recovery of individual rare earth metals is a complex and yet partially unresolved problem [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Solvent-Impregnated Resins Based on the Mixture of (2-Diphenylphosphoryl)-4-ethylphenoxy)methyl) diphenylphosphine Oxide and Ionic Liquid for Nd(III) Recovery from Nitric Acid Media

Kovalenko

Баулин

et al. 2021

Molecules

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Novel solvent-impregnated resins (SIRs) were prepared by treatment of styrene–divinylbenzene copolymer (LPS-500) with mixtures of the promising polydentante extractant (2-diphenylphosphoryl)-4-ethylphenoxy)methyl)diphenylphosphine oxide (L) and an ionic liquid [C4mim]+[Tf2N]−for the extraction chromatography recovery of Nd(III) from nitric acid solutions. It was shown that introduction of the ionic liquid into the SIR composition results in considerable enhancement of the Nd(III) recovery efficiency compared with resin impregnated only by L in slightly acidic media. The influence of the L: ionic liquid molar ratio in the SIRs composition, their percentages, concentration of metal and HNO3 in the eluent, and acid type on the value of synergistic effect and adsorption efficiency of Nd(III) recovery was studied. The SIR containing 40% of mixture of L and [C4mim]+[Tf2N]− with molar ratio 2:1 turned out to be the most efficient. The selectivity of Nd(III) separation from light and heavy rare-earth elements was studied and the optimal conditions of Nd(III) adsorption recovery and stripping by this SIR were chosen. It was found that in recovery efficiency of Nd(III) developed SIR exceeded the SIR containing Cyanex 923 (a mixture of monodentate trialkylphosphine oxides) and [C4mim]+[Tf2N]−.

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Synthesis and characterization of Nd(OH)3-ZnO composites for application in photocatalysis and disinfection

Cited by 20 publications

References 66 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

Ultraviolet Laser-Induced Selective Metallization on White Polymers Using Oxygen Vacancy Laser Sensitizer for IoT Sensors

Solvent-Impregnated Resins Based on the Mixture of (2-Diphenylphosphoryl)-4-ethylphenoxy)methyl) diphenylphosphine Oxide and Ionic Liquid for Nd(III) Recovery from Nitric Acid Media

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