One-step synthesis of magnetic iron–aluminum oxide/graphene oxide nanoparticles as a selective adsorbent for fluoride removal from aqueous solution

RSC Advances ◽  
2016 ◽  
Vol 6 (13) ◽  
pp. 10783-10791 ◽  
Author(s):  
Lei Liu ◽  
Zhaojie Cui ◽  
Qianchi Ma ◽  
Wei Cui ◽  
Xu Zhang
Keyword(s):  
Aqueous Solution ◽  
Graphene Oxide ◽  
Aluminum Oxide ◽  
Precipitation Method ◽  
Fluoride Removal ◽  
Oxide Nanoparticles ◽  
Magnetic Adsorbent ◽  
Iron Aluminum ◽  
One Step ◽  
Co Precipitation

A novel magnetic adsorbent consisting of iron–aluminum oxide/graphene oxide nanoparticles (IAO/GO) was prepared through a one-step co-precipitation method for fluoride removal from aqueous solution.

Iron–silver oxide nanoadsorbent synthesized by co-precipitation process for fluoride removal from aqueous solution and its adsorption mechanism

RSC Advances ◽  
2015 ◽  
Vol 5 (106) ◽  
pp. 87377-87391 ◽  
Author(s):  
Ali Azari ◽  
Roshanak Rezaei Kalantary ◽  
Ghader Ghanizadeh ◽  
Babak Kakavandi ◽  
Mahdi Farzadkia ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Adsorption Mechanism ◽  
Silver Oxide ◽  
Binary Oxide ◽  
Precipitation Process ◽  
Fluoride Removal ◽  
Oxide Nanoparticles ◽  
Ferrous Chloride ◽  
Chloride Solutions ◽  
Co Precipitation

Fe–Ag magnetic binary oxide nanoparticles (Fe–Ag MBON) are prepared with co-precipitation of ferric and ferrous chloride solutions, and used for the adsorption of fluoride from aqueous solution.

One-step synthesis and characterizations of cerium oxide nanoparticles in an ambient temperature via Co-precipitation method

2018 ◽  
Author(s):  
Malatesh S. Pujar ◽  
Shirajahammad M. Hunagund ◽  
Vani R. Desai ◽  
Shivaprasadgouda Patil ◽  
Ashok H. Sidarai
Keyword(s):  
Ambient Temperature ◽  
Cerium Oxide ◽  
Precipitation Method ◽  
Cerium Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
One Step ◽  
Co Precipitation

Diseases Prevention by Water Defluoridation Using Hydrotalcites as Decontaminant Materials

2017 ◽  
Vol 68 (1) ◽  
pp. 168-171 ◽  
Author(s):  
Letitia Doina Duceac ◽  
Cristina Elena Dobre ◽  
Ioana Pavaleanu ◽  
Gabriela Calin ◽  
Simona Nichitus ◽  
...  
Keyword(s):  
Dental Fluorosis ◽  
Precipitation Method ◽  
Original Structure ◽  
Fluoride Removal ◽  
Major Goal ◽  
Bone Stiffness ◽  
Morphological Aspects ◽  
Adsorption Capacities ◽  
Interlayer Structure ◽  
Co Precipitation

Preventing diseases is deemed to be the major goal of our century especially when an excessive fluoride in drinking water can cause dental fluorosis, bone stiffness, rheumatism and skeletal fluorosis. Fluoride uptake from groundwater implies a worldwide multidisciplinary effort in order to develop renewable, cheap, human friendly materials. Among other materials, hydrotalcites could be good candidates for an efficient fluoride removal from water due to their adsorption, anion exchange and reconstruction properties. These nanostructured materials were synthesized using co-precipitation method in controlled conditions. Presence of anions in the interlayer structure and morphological aspects were performed by FTIR and SEM techniques. Thermal treatment of hydrotalcites showed good adsorption capacities for water defluoridation mostly due to their tendency to restore the original structure.

Thermodynamic and anticancer properties of inorganic zinc oxide nanoparticles synthesized through co-precipitation method

2021 ◽  
Vol 330 ◽  
pp. 115602
Author(s):  
Seyyed Vahid Mousazad Goorabjavari ◽  
Fateme Golmohamadi ◽  
Saba Haririmonfared ◽  
Hosein Ahmadi ◽  
Soheil Golisani ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Zinc Oxide Nanoparticles ◽  
Precipitation Method ◽  
Oxide Nanoparticles ◽  
Anticancer Properties ◽  
Co Precipitation

Facile synthesis of magnetic La–Zr composite as high effective adsorbent for fluoride removal

RSC Advances ◽  
2016 ◽  
Vol 6 (42) ◽  
pp. 35859-35867 ◽  
Author(s):  
Pinghua Chen ◽  
Weibo Zhang ◽  
Menglin Li ◽  
Peng Ai ◽  
Lei Tian ◽  
...  
Keyword(s):  
Precipitation Method ◽  
Fluoride Removal ◽  
Magnetic Composite ◽  
Facile Synthesis ◽  
Batch Studies ◽  
Co Precipitation

A novel magnetic composite of La–Zr was prepared by co-precipitation method, and its fluoride removal ability was investigated in batch studies.

Slip velocity and temperature jump of a non-Newtonian nanofluid, aqueous solution of carboxy-methyl cellulose/aluminum oxide nanoparticles, through a microtube

2019 ◽  
Vol 29 (5) ◽  
pp. 1606-1628 ◽  
Author(s):  
Marjan Goodarzi ◽  
Saeed Javid ◽  
Ali Sajadifar ◽  
Mehdi Nojoomizadeh ◽  
Seyed Hossein Motaharipour ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Aqueous Solution ◽  
Aluminum Oxide ◽  
Temperature Jump ◽  
Methyl Cellulose ◽  
Oxide Nanoparticles ◽  
Carboxy Methyl Cellulose ◽  
Aluminum Oxide Nanoparticles ◽  
Content Type ◽  
Carboxy Methyl

Purpose With respect to two new subjects, i.e. nanofluids and microchannels, in heat transfer systems and modern techniques used for building them, this paper aims to study on effect of using aluminum oxide nanoparticles in non-Newtonian fluid of aqueous solution of carboxy-methyl cellulose in microtube and through application of different slip coefficients to achieve various qualities on surface of microtube. Design/methodology/approach Simultaneously, the effect of presence of nanoparticles and phenomenon of slip and temperature jump has been explored in non-Newtonian nanofluid in this essay. The assumption of homogeneity of nanofluid and fixed temperature of wall in microtube has been used in modeling processes. Findings The results have been presented as diagrams of velocity, temperature and Nusselt Number and the investigations have indicated that addition of nanoparticles to the base fluid and increase in microtube slip coefficient might improve rate of heat transfer in microtube. Originality/value The flow of non-Newtonian nanofluid of aqueous solution of carboxy methyl cellulose-aluminum oxide has been determined in a microtube for the first time.

scholarly journals Influence of pH on Structural, Morphological, Optical, Photocatalytic, and Antibacterial Properties of Yttrium Oxide Nanoparticles via Co-Precipitation Method

2021 ◽  
Author(s):  
Kiruthika Parangusan ◽  
Venkat Subramanium ◽  
Lakshmanaperumal Sundarabharathi ◽  
Karthik Kannan ◽  
Devi Radhika
Keyword(s):  
Yttrium Oxide ◽  
Antibacterial Properties ◽  
Blue Emission ◽  
Precipitation Method ◽  
Diffusion Method ◽  
Bandgap Energy ◽  
Oxide Nanoparticles ◽  
Ph Values ◽  
Co Precipitation ◽  
Yttrium Oxide Nanoparticles

Abstract Yttrium oxide nanoparticles with multiform morphologies have been synthesized by the co-precipitation method. The structure, morphology, functional groups, optical and photoluminescence properties were examined through X-ray diffraction (XRD), Scanning electron microscope (SEM), Fourier transform infrared spectrometer (FTIR), UV-Visible (UV-Vis), Photoluminescence spectra (PL). The XRD patterns obtained for the samples synthesized at various pH values confirmed the cubic structure of Y2O3. The patterns obtained on the samples at pH values of 8 and 9 appeared as have sharp peaks suggested, that the samples were well crystallized. From UV-vis spectra, it revealed that the bandgap energy exhibits a blue shift in the absorption edge for the samples with the increase of pH due to their changing morphologies and surface structures. In the PL spectra, the obtained Y2O3 samples demonstrate an intense and bright UV and blue emission under the excitation wavelength range of 250 nm. The photocatalytic degradation of the Y2O3 nanostructure was studied against the Methylene blue (MB) dye under sunlight irradiation. The results showed good recital under solar light irradiation. Further, the antimicrobial activities of Y2O3 nanostructure against foodborne pathogens (Staphylococcus aureus and Salmonella typhi) were examined by using the disc diffusion method. Moreover, the Y2O3 nanostructure was found to be biocompatible.

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