Synthesis of Cu 2ZnSnSe 4 thin-film solar cells from nanoparticles by a non-vacuum mechanical ball milling and rapid thermal processing Ying Liu1,2, Xiaowei Xu3, Ke Liu1, Huihong Liu2 1Key Laboratory of Low Dimensional Optoelectric Materials and Devices, Hubei University of Arts and Science, Xiangyang 441053, People's Republic of China 2Engineering Research …
The milling of materials has been a major component of the mineral, ceramic processing, and powder metallurgy industries. The objectives of mechanical milling include particle size reduction, mixing or blending, particle shape changes and synthesis of nanocomposite. The typical mill used for these purposes has been the high energy ball mill
deposition, electrochemical and sonochemical methods [6,7]. Ball milling is a simple, inexpensive and effective technique for synthesis of nanomaterials [8,9]. In literature there are studies of utilizing ball milling to synthesize TiO2 nanoparticles nanotubes of boron and carbon, ZnO nanoparticles [10,11,12].
1.0 g as-prepared TiO 2 nanotubes were weighed out and placed in a laboratory plastic ball mill, together with 0.5 mL ethanol and 10.0 g agate balls (5.0 mm in diameter) as milling media. The grinding was conducted in a shaker mill (QM-3B, Nanjing NanDa Instrument Plant) that was operated at the speed of 600 rpm for 0.5, 5, and 10 h, respectively.
Ball-milling of TiO 2 and SnO 2 produced no TiO 2 @SnO 2 composites. This verifies that the composite particles must be formed by nucleation and growth of the secondary precursor on the TiO 2. High concentration of secondary precursor led to formation of TiO 2 particles embedded in aggregates of SnO 2 nanoparticles. The results demonstrate how ...
The agglomeration problem of the beta-SiC nanoparticles synthesized by ball milling was resolved to a great extent by the introduction of 2 wt% NH4Cl to the initial Si-C mixture. Under 325 nm excitation, a stable and intensive broad emission peak at 387 nm was observed in the photoluminescence (PL) spectrum of the synthetic nanoparticles, and ...
In this review, the synthesis methods and photocatalytic activity of some selected and unique results related to WO 3 /TiO 2 photocatalyst were discussed. The efficient charge separation, increased absorption of the reactants by increasing the surface acidity and high aspect ratio structures of WO 3 /TiO 2 are also reviewed.
A solid-state reaction of TiOSO4.xH2SO4.yH2O TiO2 + (x+y)H2O + (x+1)SO3 was induced during milling to synthesis the titanium dioxide nanoparticles. Titanyl sulphate (TiOSO4.xH2O.yH2SO4) and NaCl powders were used as the reactant and diluent phases, respectively. Annealing the as-milled powder at 700°C along with diluent phase and the …
2.2 Synthesis of Mg 2 TiO 4 nano-composite alloys. In this chapter, high energy planetary ball milling techniques was used for the synthesis of Mg 2 TiO 4 nano-composite alloys from high- purity MgO and TiO 2 oxides. The starting materials were weighted according to desired stoichiometry ratios and milled for 5 – 35 hrs to reach steady state condition using …
Present disclosure provides a process for the synthesis of doped titania nanoparticle having photocatalytic activity greater than 90% at 2 hours under sunlight irradiation. The process involves step a) milling a mixture containing anatase titania and a precursor compound, the compound selected from the group consisting of metal and non-metal salts, in the presence of water and …
Synthesis of iron-oxide magnetic nanoparticles coated with dextran of varied molecular mass using a facile ball-milling method Bo-Wei Chen1, Shadie Hatamie2, Prabir Garu1, Pooyan Heravi3, Jiann-Yeu Chen4, Bo-Tau Liu5, Zung-Hang Wei3, Da-Jeng Yao1,3 1Institute of NanoEngineering and MicroSystems, National Tsing Hua University, Hsinchu 30013, Taiwan …
This study evaluates the impact of industrially prepared TiO 2 nanoparticles on the biological system by using an in vitro model of colon cancer cell lines (HCT116). Industrial synthesis of titanium oxide nanoparticles was mimicked on the lab scale by the high-energy ball milling method by milling bulk titanium oxide particles for 5, 10, and 15 h in an ambient environment.
The different type of ball milling can be used for synthesis of nanomaterials in which balls impact upon the powder charge [12]. High-energy ball milling is a convenient way to produce nanosized powders. It is the most common method reported in the literature for the synthesis of intermetallic nanoparticles.
Working of ball milling for synthesis of nano particles Products. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including, Working of ball milling for synthesis of nano particles, quarry, aggregate, and different kinds of minerals.
In this work, TiO2 nanoparticles were successfully synthesized with narrow size distribution via a wet ball milling sol-gel method. The effect of calcination temperature on photocatalytic activity was observed from particle size, crystallite size, and phase transition of TiO2 nanoparticles. Increasing calcination temperature increased particle size, crystallite size, and the crystallinity …
After 5 h ball milling, TiO 2 hierarchical nanotubes exhibited a corn-like shape and exhibited enhanced photoelectrochemical activity in comparison to commercial P25. The superior photocatalytic activity is suggested to be due to the combined advantages of high surface area of nanoparticles and rapid electron transfer as well as collection of ...
The successful preparation of free standing metal nanoparticles with high purity in bulk quantity is the pre-requisite for any potential application. This is possible by using ball milling at cryogenic temperature. However, the most of ball mills available in the market do not allow preparing high purity metal nanoparticles by this route. In addition, it is not possible to …
For all nanocrystalline materials prepared by high-energy ball milling synthesis route, surface and interface contamination is a major concern. In particular, mechanical attributed contamination by the milling tools (Fe or WC) as well as ambient gas (trace impurities such as O 2, N 2 in rare gases) can be problems for high-energy ball milling.
of ultrasound radiation and ball milling produces a lot of ·OH, which plays an important role in the synthesis of CuO nanoparticles. 3.3. Catalytic properties The excellent catalytic activity of the synthesized CuO nanoparticles was illustrated by its degradation of methylene blue and rhodamine B aqueous solution 41
Novel mechanochemical synthesis of fine FeTiO3 nanoparticles by a . May 31 2010 speed ball milling with steel balls and TiO2 nanoparticles is reported The pure FeTiO3 nanoparticles collision energy in the ball milling process the surface of the steel balls by employing high speed ball milling The raw
Synthesis of iron-doped TiO 2 nanoparticles by ball-milling process: the influence of process parameters on the structural, optical, magnetic, and photocatalytic properties J. O. Carneiro • S. Azevedo • F. Fernandes • E. Freitas • M. Pereira • C. J. Tavares • S. Lanceros-Me´ndez • V. Teixeira Received: 14 May 2014/Accepted: 7 July 2014/Published online: 22 July 2014
The industrial synthesis of TiO 2 nanoparticles was mimicked on the lab scale using the high energy ball milling (HEBM) method by milling bulk TiO 2 particles for 5 h, 10 h, and 15 h in an ambient environment. The physiochemical properties were characterized by standard methods like field emission scanning electron microscopy (FESEM), dynamic ...
A novel ball milling technique for room temperature processing of TiO 2 nanoparticles employed as the electron transport layer in perovskite solar cells and modules † Mriganka Singh,a Chien-Hung Chiang,b Karunakara Moorthy Boopathi,c Chintam Hanmandlu,c Gang Li, e Chun-Guey Wu, *bf Hong-Cheu Lin *a and Chih-Wei Chu *cdg Author affiliations …
یک پیام ارسال کرد