Synthesis and characterization of cobalt nanoparticles for application in the removal of textile dye

Cruz, Jean C.; Nascimento, Mayra Aparecida; Amaral, Héryca A.V.; Lima, Diego S.D.; Teixeira, Ana Paula C.; Lopes, Renata Pereira

doi:10.1016/j.jenvman.2019.04.059

Cited by 39 publications

(16 citation statements)

References 56 publications

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“…The analysis confirmed that increasing the reductant and stabilizer concentration resulted in a high reaction rate, and in turn a small NP size. It is worth noting that later experiments showed NPs synthesized using this method contained cobalt oxide (CoO) [46].…”

Section: Pure Cobalt Nanoparticlesmentioning

confidence: 97%

Synthesis of cobalt, palladium, and rhenium nanoparticles

2020

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Over the past decade, metal nanoparticles (MNPs) have attracted extensive attention due to their unique physiochemical properties that make them highly applicable in various fields such as chemical sensing, energy storage, catalysis, medicine, and environmental engineering. Their physiochemical properties depend drastically on the MNP size and morphology, which are largely determined by their synthesis methods. Research on MNPs predominantly focused on coinage metals (Au, Ag and Cu), but in the last decade research on metals with a relatively high melting temperature such as Pd, Co, and Re has seen rapid increases, mainly driven by their potential applications as catalysts. This paper presents the recent advances on different synthesis techniques of Co, Pd, and Re nanoparticles, their resulting nanostructures, as well as existing and potential applications.

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Section: Pure Cobalt Nanoparticlesmentioning

confidence: 97%

Synthesis of cobalt, palladium, and rhenium nanoparticles

2020

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“…These properties have been exploited in recent years in all the domains, including wastewater treatment. Cruz et al (2019) reported that cobalt nanoparticles (CoNPs) removed the Remazol golden yellow RNL by almost 100% in 30 min. The X-ray diffraction (XRD) and Raman spectroscopy study showed presence of CoO and Co 0 , which was supported by thermogravimetric analysis coupled to mass spectrometry (TG-MS) analysis.…”

Section: Microbial Nanoparticle Approachmentioning

confidence: 99%

“…Recently, nanotechnology utilizing nano-sized particles has become evident as a feasible alternative to the conventional methods because it is robust, readily accessible, and has a large surface area heterogeneous catalyst support (Modi et al 2015;Rajput et al 2017). These nano-sized particles can greatly enhance the contact between the reactants and the catalyst by increasing the exposed surface area of the active component (Cruz et al 2019). Due to repeated discharge, the concentration of the dye is increasing in the environment; hence it is important to identify microbes with higher dye degradation capacity and to give effective bioremediation options for textile wastewater, such as bioaugmentation, microbial degradation, and natural attenuation to influence biostimulation either alone or with microbe-assisted nanoparticles (Ozkan et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Bioefficacies of microbes for mitigation of Azo dyes in textile industry effluent: A review

Saxena

Gupta

2020

BioRes

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In recent years, India has emerged as a promising industrial hub. It has a cluster of textile, dyeing, and printing industries. The adjoining rivers/water bodies receive mostly untreated discharge from these industries. Textile industrial effluent contains various contaminants (dyes, heavy metals, toxicants, and other organic/inorganic dissolved solids) that alter the physico-chemical properties of adjoining land and waterbodies in which it is discharged, thereby degrading the water quality and subsequently affecting the landscapes in the vicinity. This ultimately affects the flora and fauna of the locale and has adverse effects on human health. Out of the total dyes (approximately 10,000 dyes) exploited in the textile dyeing and printing units, azo dyes possess a complex structure and are synthetic in origin. They contribute nearly 70% to the total effluent discharge. Biological processes are based on the ability of inhabiting indigenous microorganisms in these contaminated environments to tolerate, resist, decolorize/degrade, and mitigate the recalcitrant compounds. Exploring microbes with higher efficacy of azo dye degradation can reduce the amount of chemical discharged from the process. The present review explores the potential of microbial diversity for the development of an effective bioremediation approach. The review also includes the impact of azo dyes on the flora and fauna, as well as conventional and microbe-assisted nanoparticle technology for treatment of the textile wastewater targeting the degradation of dye contaminants.

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“…Aided by this, drugs can be intelligently transported in the body, with functions of targeting positioning and drug release control (9), and the toxic and side effects of drugs are also reduced at the same time. Moreover, it has good functions of inhibiting the growth and metastasis of tumor cells and blocking the cell cycle (10), which is an ideal new drug for the treatment of cervical cancer.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Mechanism of Action of Cuprous Oxide Nanoparticles in Treatment of Cervical Cancer under Real-time Ultrasound Elastography

Liang¹,

Liu²,

Huang³

et al. 2022

Cell Mol Biol (Noisy-le-grand)

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It aimed to explore the adoption value of cuprous oxide nanoparticles (Cu2O NPs) in the clinical treatment of cervical cancer under the evaluation of real-time ultrasound elastography. In this experiment, the solution of Cu2O NPs was synthesized and used in 90 selected mouse models of cervical cancer. It was found that Cu2O NPs can significantly control the reproduction of various types of cervical cancer cells, effectively stopping the cycle of cervical cancer cell lines in the G1/G0 phase. In addition, the tumor weight of 0.25g in the Cu2O NPs group was notably lighter than that of 1.1g in the control group. The weight change of the mouse was 21g compared with 15g of the cis-dichlorodiamine platinum (CDDP) group, and it was proved that Cu2O NPs were less cytotoxic to the body and have few side effects. Moreover, real-time ultrasound elastography showed that there were 26 cases with a tumor elasticity score no less than 2 in the Cu2O NPs group, accounting for 87%, which was better than that of the CDDP group (17 cases, 57%), and the difference was substantial (P<0.05). The shear wave velocity of Cu2O NPs (1.46±0.48 m/s) was also lower than that (1.73±0.62 m/s) of the CDDP group, which suggested that the tumor body hardness of mice in the Cu2O NPs group was lower, and the difference was considerable (P<0.05). In short, Cu2O NPs had good functions such as inhibiting the proliferation and spread of tumor cells and blocking the cell cycle. Moreover, the toxic and side effects of the drug were slight, and it was an ideal new type of treatment for cervical cancer.

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Synthesis and characterization of cobalt nanoparticles for application in the removal of textile dye

Cited by 39 publications

References 56 publications

Synthesis of cobalt, palladium, and rhenium nanoparticles

Synthesis of cobalt, palladium, and rhenium nanoparticles

Bioefficacies of microbes for mitigation of Azo dyes in textile industry effluent: A review

Analysis of Mechanism of Action of Cuprous Oxide Nanoparticles in Treatment of Cervical Cancer under Real-time Ultrasound Elastography

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