Production of martite nanoparticles with high energy planetary ball milling for heterogeneous Fenton-like process

Rahmani, Amir
Khataee, Alireza
Kaymak, Barış
Vahid, Behrouz
Fathinia, Mehrangiz
Dindarsafa, Mahsa
Natural martite microparticles (NMMs) were prepared with a high energy planetary ball mill to form a nanocatalyst for a Fenton-like process. Martite nanoparticles (MNs) of different scales are formed when the milling time ranges from 1 to 5 h at the milling speed of 300 rpm. The catalytic performances of MNs are higher than the NMMs for the degradation of acid blue 5 (AB5) in a heterogeneous Fenton- like process. The NMMs and the MNs were characterized by SEM, EDX, BET, XRD and FT-IR analyses. The size distribution of the 5 h milled martite nanoparticles (MN3) is in the range of 20 nm to 100 nm, and these have the highest surface area (19.23 m(2) g(-1)). The influence of the main operational parameters, including initial pH, MN3 dosage, H2O2 and initial dye concentration, were investigated on the AB5 degradation. The treatment process obeys pseudo first order kinetics and some of the degradation intermediates were recognized by the GC-MS method. The environmentally-friendly production of the MNs, low amount of leached iron and repeated catalyst usage are the significant advantages of this research. Finally, an artificial neural network (ANN) is expanded to estimate the degradation efficiency of AB5 on the basis of the experimental results, which indicates the appropriate performance (R-2 = 0.955).


Heterogeneous sono-Fenton-like process using martite nanocatalyst prepared by high energy planetary ball milling for treatment of a textile dye
Dindarsafa, Mahsa; Khataee, Alireza; Kaymak, Barış; Vahid, Behrouz; Karimi, Atefeh; Rahmani, Amir (2017-01-01)
High energy planetary ball milling was applied to prepare sono-Fenton nanocatalyst from natural martite (NM). The NM samples were milled for 2-6 hat the speed of 320 rpm for production of various ball milled martite (BMM) samples. The catalytic performance of the BMMs was greater than the NM for treatment of Acid Blue 92 (AB92) in heterogeneous Sono: Fenton-like process. The NM and the BMM samples were characterized by XRD, FT-IR, SEM, EDX and BET analyses. The particle size distribution of the 6 h-milled m...
Production of flexible polymeric photoanodes using binder-free electrophoretic deposition and compression for dye-sensitized solar cells
Kocaoglu, Bahadir Can; Özenbaş, Ahmet Macit (2015-04-29)
Electrophoretic deposition (EPD) of titania nanoparticles have been utilized in order to form the nanoporous photoanodes of dye-sensitized solar cells (DSSCs) on flexible polymeric (PEN/PET) substrates. Highly uniform, adherent nanoporous thick films were produced by uniformly dispersing the titania nanoparticles in alcoholic suspensions without any binders. Suspension performances of each type of isopropanol based mixtures have been examined. Additionally, the effect of acetylacetone addition in suspension...
Synthesis and thermoelectric characterization of Ca3Co4O9 particles
Ertuğrul, Hediye Merve; Özenbaş, Ahmet Macit; Department of Metallurgical and Materials Engineering (2018)
Thermoelectric materials can convert waste heat to electrical energy as well as thermal energy to electrical energy. Thermoelectric technology can aid to solve the energy problem which causes global environmental problems as an alternative energy source and provide long-lasting power sources which can be used for space missions. Ca3Co4O9 is environment friendly, nontoxic, humidity resistant at high temperatures, oxidation resistant, abundant, chemically and thermally stable in air and light. Also, this mate...
Determination of deep trapping center parameters in as-grown Tl2Ga2S3Se layered crystals
YILDIRIM, TACETTİN; Hasanlı, Nızamı (Elsevier BV, 2009-09-01)
Thermally stimulated current measurements were carried out on as-grown Tl2Ga2S3Se layered single crystals. The investigations were performed in temperatures ranging from 10 to 320 K with heating rates of 0.6-1.2 K s(-1). The analysis of the data revealed the hole trap level located at 498 meV. The activation energies of the traps have been determined using various methods of analysis, and they agree with each other. The calculation for these traps yielded 2.1 x 10(-18) cm(2) for capture cross-section and 2....
Investigation of Self-Excited Ultrahigh Speed Induction Generators for Distributed Generation Systems
Jardan, Rafael K.; Varga, Zoltan; Nagy, Istvan (2011-09-10)
Application of ultra high speed induction generators (IG) in a system developed for utilization of renewable and waste energies that can be applied in Distributed Generation System is presented. The energy conversion is made by a turbine-generator set. For the electromechanical energy conversion application of special high speed induction generators has been studied and described in the paper. The design and analysis of the system are relied on computer simulation techniques verified by test results.
Citation Formats
A. Rahmani, A. Khataee, B. Kaymak, B. Vahid, M. Fathinia, and M. Dindarsafa, “Production of martite nanoparticles with high energy planetary ball milling for heterogeneous Fenton-like process,” RSC ADVANCES, pp. 81219–81230, 2016, Accessed: 00, 2020. [Online]. Available: