Prozac® removal promoted by HAP:Nb2O5 nanoparticles system: by‐products, mechanism, and cytotoxicity assessment

Malafatti, João Otávio Donizette; Moreira, Ailton José; Sciena, C. R.; Silva, Thales Martins; Freschi, Gian Paulo Giovanni; Pereira, Ernesto C.; Paris, Elaine Cristina

doi:10.1016/j.jece.2020.104820

Cited by 17 publications

(5 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Various methodologies have been developed to remove pollutants from different types of media, and to address growing environmental quality concerns. In this context, heterogeneous photocatalysis is receiving attention due to its ability to remove and degrade contaminants, recover the photocatalyst, and reuse it in new cycles [1,2]. Specifically, CO 2 photoreduction is receiving attention because of the urgent demand to decrease greenhouse gases and diminish their harmful environmental impacts [3].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Application of Nb2O5 Nanofibers in CO2 Photoconversion

et al. 2021

View full text Add to dashboard Cite

Increasing global warming due to NOx, CO2, and CH4, is significantly harming ecosystems and life worldwide. One promising methodology is converting pollutants into valuable chemicals via photocatalytic processes (by reusable photocatalysts). In this context, the present work aimed to produce a Nb2O5 photocatalyst nanofiber system by electrospinning to convert CO2. Based on the collected data, the calcination at 600 ∘C for 2 h resulted in the best condition to obtain nanofibers with homogeneous surfaces and an average diameter of 84 nm. As a result, the Nb2O5 nanofibers converted CO2 mostly into CO and CH4, reaching values around 8.5 μmol g−1 and 0.55 μmol g−1, respectively.

show abstract

Section: Introductionmentioning

confidence: 99%

Preparation and Application of Nb2O5 Nanofibers in CO2 Photoconversion

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Conversely, roots from the F−HAp and HAp_600 °C samples exhibited more significant branching (laterally) with respect to the blank sample (water), thereby displaying superior root development [146]. Enhanced root growth is likely to be related to metabolic acceleration due to the supply of phosphorus and cobalt nutrients by F−HAp and HAp_600 °C.…”

Section: Cytotoxicity Analysismentioning

confidence: 95%

A “Zero-Cost” Adsorbing Hydroxyapatite-Based Material from Amazon Fishery Waste for Water Remediation and Nutrient Release for Agriculture

et al. 2023

View full text Add to dashboard Cite

This paper puts forward the use of “low-cost/low-end” hydroxyapatite-based adsorbing materials prepared from Tambaqui fish cleaning residues (i.e., bones) by grinding and/or thermal annealing. The nature of raw materials and treatments practically resulted in a “zero-cost” adsorbent for atrazine pesticide and Co2+ ion remediation in an aqueous solution. Despite the distinctive character of the two contaminants, all adsorptions were found to follow pseudo-second order kinetics and Freundlich isotherm models. Pristine hydroxyapatite proved to be more effective in adsorbing atrazine at low concentrations due to interactions with collagen residues. Conversely, heat-treated materials demonstrated better adsorption performances for cobalt due to the removal of organic residues hindering access to the surface. On the other hand, lower adsorption affinities resulted into a faster and more efficient Co2+ release into water. The different behavior in terms of phosphate and cobalt release shown by the three hydroxyapatite-based absorbents can be exploited for differential liberation of targeted nutrients, with high seed germination rates. Considering circular economic principles, waste-derived hydroxyapatites may be potentially attractive for removing ionic species, minimizing water pollution stemming from heavy industry, and for their subsequent targeted release to edible plants, enhancing agricultural availability of mineral nutrients for soil fertilization.

show abstract

“…Environmental remediation processes have been applied in waste treatment to minimize the ecological impacts occasioned by human actions [ 1 , 2 ]. The adsorption of pollutants with low-cost adsorbents is controlled mainly by physical interactions, making this process more attractive for wastewater treatment since this characteristic allows the adsorbent to be reused in many cycles [ 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

Modified Silica Nanoparticles from Rice Husk Supported on Polylactic Acid as Adsorptive Membranes for Dye Removal

et al. 2023

View full text Add to dashboard Cite

Industrial effluents and wastewater treatment have been a mainstay of environmental preservation and remediation for the last decade. Silica nanoparticles (SiO2) obtained from rice husk (RH) are an alternative to producing low-cost adsorbent and agriculture waste recovery. One adsorption challenge is facilitating the adsorbate separation and reuse cycle from aqueous medium. Thus, the present work employs SiO2 supported on polylactic acid (PLA) nanofibers obtained by the electrospinning method for Rhodamine B (RhB) dye adsorption. The silica surface was modified with trimethylsilyl chloride (TMCS) to increase affinity towards organic compounds. As a result, the silanized surface of the silica from rice husk (RHSil) promoted an increase in dye adsorption attributed to the hydrophobic properties. The PLA fibers containing 40% SiO2 (w w−1) showed about 85–95% capacity adsorption. The pseudo-first-order kinetic model was demonstrated to be the best model for PLA:SiO2 RHSil nanocomposites, exhibiting a 1.2956 mg g−1 adsorption capacity and 0.01404 min−1 kinetic constant (k1) value. In the reuse assay, PLA:SiO2 membranes preserved their adsorption activity after three consecutive adsorption cycles, with a value superior to 60%. Therefore, PLA:SiO2 nanocomposites from agricultural waste are an alternative to “low-cost/low-end” treatments and can be used in traditional treatment systems to improve dye removal from contaminated waters.

show abstract

Prozac® removal promoted by HAP:Nb2O5 nanoparticles system: by‐products, mechanism, and cytotoxicity assessment

Cited by 17 publications

References 64 publications

Preparation and Application of Nb2O5 Nanofibers in CO2 Photoconversion

Preparation and Application of Nb2O5 Nanofibers in CO2 Photoconversion

A “Zero-Cost” Adsorbing Hydroxyapatite-Based Material from Amazon Fishery Waste for Water Remediation and Nutrient Release for Agriculture

Modified Silica Nanoparticles from Rice Husk Supported on Polylactic Acid as Adsorptive Membranes for Dye Removal

Contact Info

Product

Resources

About