Anisotropic Sm-(Co,Fe) nanoparticles by surfactant-assisted ball milling

Magnetically hard Sm2(Co0.8Fe0.2)17 and SmCo5 nanoparticles have been produced by using surfactant-assisted low- and high-energy ball milling techniques. Surfactants prevent the rewelding of the crashed particles during the milling process. Heptane was used as the milling medium and oleic acid as the surfactant. High-energy …

Confined-space strategy for anchoring catalytic nanoparticles …

Confined-space strategy for anchoring catalytic nanoparticles on Si-OH by ball milling for enhanced O 3 /PMS oxidation of ciprofloxacin. ... The optimal ball milling time was 60 min (84.6%) and a slight decay in activity could be observed over Co-Ce-CS for CIP mineralization after 120 min ball milling, probably caused by the partial …

Defining the process parameters affecting the fabrication …

Preparation of ROSCa nanoparticles . ROSCa nanoparticles were prepared in two steps. ROSCa powder was first subjected to dry milling using planetary ball mill (Pulverisette 7 Premium, Fritsch Co. Germany), in order to decrease the particles size to less than 20 µm. since the received raw material was analyzed for particle size …

Aluminum nanoparticles manufactured using a ball-milling …

Well-formed aluminum nanoparticles with average particle sizes of approximately 30 nm and high specific surface areas of over 30 m 2 g −1 can be obtained using the optimal ball-milling reaction time. In this case, the initiation temperature of oxidation was observed at approx. 150 °C and the weight increased by approx. 39% when heated under ...

Ball milling: a green technology for the preparation and

Ball milling is a mechanical technique widely used to grind powders into fine particles and blend materials. 18 Being an environmentally-friendly, cost-effective technique, it has …

Iron nanoparticles produced by high-energy ball milling

Abstract. In this investigation, the chemical and structural characteristics of Fe nanoparticles synthesized by high-energy ball milling have been explored. After the milling process the nanoparticles were collected using a magnetic field. The structure, morphology and composition of the powders were obtained using high-resolution …

Synthesis and Characterization of Graphite-Encapsulated …

In this study, graphite-encapsulated Fe nanoparticles ranging in size between 20 and 300 nm were successfully synthesized from a solid precursor containing Fe 2 O 3 and graphite powders by a combined method of high-energy ball milling and low pressure chemical vapor deposition. XRD analysis indicates the presence of the major BCC Fe and FCC …

Aluminum Nanoparticle Production by Acetonitrile-Assisted …

Milling aluminum balls together with either vapor- or liquid-phase acetonitrile (ACN) leads to production of nanoparticles by mechanical attrition; however, vapor-phase ACN is far …

High-energy ball milling technique for ZnO nanoparticles …

In this study, the high-energy ball milling (HEBM) technique was used to produce nanoparticles of ZnO from its microcrystalline powder. Four samples were ball milled for 2, 10, 20, and 50 hours, respectively. The structural and optical modifications induced in the 'as synthesized' nanomaterials were determined by X-ray diffraction (XRD ...

Ball Milling

Ball milling of the nanoparticles with the base fluid is also one of the traditional methods for nanofluid preparation. Such a type of milling can come under the class of wet …

Processing and Characterization of PbS Nanoparticles by Ball Milling …

High energy ball milling was used to prepare nanoparticles from the bulk materials using the top-down technique. Debye–Scherer formula was used to determine the crystalline size of the nanoparticle.

Scale-Up of Nanoparticle Manufacturing Process | SpringerLink

Milling can also be used for synthesis of nanoparticles as first developed by John Benjamin (1970) utilizing high energy ball mill. Mechanical milling is the process of ball-powder-ball collision. which leads to formation of fractures in the feed material due to conversion of stored energy (potential energy) into free surface energy ...

Preparation and characterization of TiO2 and V2O5 nanoparticles …

In summary, ball-milling preserves the crystalline structure of the bulk material, and produces TiO 2 and V 2 O 5 particles with sizes in the nanometer range (it is not clear why the same procedure produces larger V 2 O 5 nanoparticles). The ball-milling procedure does not introduce any spurious impurity, and preserves the relative …

Synthesis of magnetite nanoparticles from iron sand by ball-milling

Abstract. The research aims to synthesis of magnetite nanoparticle from iron sand by. mechanomhemical route. The XRF graph o f sho wed the dominant mineral content of the iron. sand is SiO (36.09% ...

Mechanical Milling: A Superior Nanotechnological Tool for …

Ball milling experiments were done in a high energy planetary ball mill at a rotating speed of 300 rpm. To avoid the occurrence of any undesirable polluted phases, …

Effects of ball-milling on PLGA polymer and its implication …

In the buffer stage, this trend continued in which the release rate of lansoprazole from milled PLGA nanoparticles was significantly higher than the release obtained from standard PLGA nanoparticles, with milled PLGA displaying a higher burst effect within the first 5 minutes (26.49 ± 17.53 %) as compared with the PLGA …

Anisotropic PrCo Nanoparticles by Surfactant-Assisted Ball Milling

Abstract. Magnetically hard PrCo5 nanoparticles have been produced by using surfactant-assisted high-energy ball milling techniques. The use of surfactant leads to the dispersion of the crashed ...

Magnetic nanoparticles produced by surfactant-assisted ball milling …

Nanoparticles of Fe, Co, FeCo, SmCo, and NdFeB systems with sizes smaller than 30 nm and narrow size distribution have been successfully prepared by ball milling in the presence of surfactants and organic carrier liquid. It has been observed that the nanoparticles prepared by milling Fe and FeCo powders were close to spherical in …

Ball-milling fabrication of BiAgOS nanoparticles for 808 nm …

BiAgOS NPs were synthesized using the ball milling method. The procedure is described as follows: the obtained Bi 2 O 3-Ag 2 O composite (0.5 g) and Na 2 S (0.97 g) were added to the two spherical tanks. The weight ratio of the ball and mixture was 15:1. Set the ball milled at a speed of 200 rpm for 3 h. BiAgOS NPs were washed by …

Synthesis and Characterization of ZnS Nanoparticles by Ball Milling

Zinc sulphide (ZnS) nanoparticles have been success fully. produced utilizing a mechanical milling technique. The ZnS. nanoparticles' XRD measurements reveal peaks at the crystal. plane (111 ...

Ball milling as a mechanochemical technology for fabrication …

The adsorption capacity of methylene blue could be further enhanced to 500.5 mg g −1 using a magnetic ball-milled biochar, which was synthesized by solvent-free …

Synthesis of ZnO nanoparticles by Ball-milling process for …

DOI: 10.1016/J.MATPR.2021.03.559 Corpus ID: 234828920; Synthesis of ZnO nanoparticles by Ball-milling process for biological applications @article{Wirunchit2021SynthesisOZ, title={Synthesis of ZnO nanoparticles by Ball-milling process for biological applications}, author={Supamas Wirunchit and P. Gansa and …

Facile Ball-Milling Synthesis of CuO/Biochar …

3 Department of Agricultural and Biological Engineering, University of Florida, Gainesville, Florida 32611, United States. 4 School of the Environmental, Nanjing ... biochar (BC) nanocomposites were successfully prepared through simply ball milling CuO particles with BC. ... attraction between the embedded CuO nanoparticles and …

Production of aluminum nanoparticles by wet mechanical milling

In this work aluminum nanoparticles, from aluminum powder, were produced by wet mechanical milling through a combination of different attrition milling conditions such as ball-powder ratio (BPR) and the amount of solvent used. It was observed that at 600 rpm with a BPR of 500/30 g for 12 h, it was possible to produce …

A review on nanoparticles: characteristics, synthesis, …

5.1.1. Mechanical milling . The mechanical milling process uses balls inside containers and may be carried out in various mills, typically planetary and shaker mills, which is an impact process with high energy (Gorrasi and Sorrentino, 2015). Mechanical milling is a practical approach for creating materials at the nanoscale from bulk materials.

Improved Lithium Storage Capability of Si Anode by Ball-Milling …

Material Synthesis. The nanosized Si powder and MCMB were ultrasonically pre-dispersed in 30 mL solution (CH 2 OH) 2: C 2 H 5 OH=2:1, v/v) at a mass ratio of 1:4 and then transferred to a stainless steel jar.The ball milling was conducted in a planetary ball mill (QM-3SP4, Nanjing) at a speed of 300 r min −1 for 12 h. Afterwards, it was …

Mechanical Milling Of Copper Oxide Nanoparticles

Abstract. We describe a mechanical ball milling technique for producing CuO nanoparticles. Using a 10:1 ball to powder ratio and a milling speed of 150 rpm for 20 hours, copper oxide powder was created. The X-ray diffraction (XRD) confirmed a high degree of crystalline and the average crystallite size was determined using the Scherer …

LLM-105 nanoparticles prepared via green ball milling and …

2,6-diamino-3,5-dinitropyrazine-1-oxide (LLM-105) has drawn extensive attention because of its heat resistance and insensitivity properties. In this study, the LLM-105 nanoparticles were successfully prepared via ball milling method. The milled particles were characterized by scanning electron microscopy, X-ray diffraction, dynamic light scattering, differential …