Optimization of a nanoparticle ball milling process parameters using the response surface method
Authorized Users Only
2018
Authors
Petrović, Srđan
Rožić, Ljiljana

Jović, Vesna

Stojadinović, Stevan

Grbić, Boško

Radić, Nenad

Lamovec, Jelena

Vasilic, Rastko

Article (Published version)

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Show full item recordAbstract
Nanocrystalline TiO2-CeO2 powders were synthesized from their TiO2 and CeO2 oxides using mechanical ball milling process. The response surface method is applied to identify optimal parameters for the synthesis of TiO2-CeO2 photocatalyst. Analysis of variance and main effect plot are used to determine the significant parameters and set the optimal level for each parameter. Regression analysis showed good agreement of experimental data with the second-order polynomial model with a coefficients of determination: R-2 = 0.991, R-Adj(2). = 0.940 and R-Pred(2). = 0.983. Under optimal experimental conditions of TiO2:CeO2 weight percentage ratio 71: 29, milling speed 200 rpm, and milling time 115 min the highest photodegradation efficiency was achieved. On the basis of the above statistical analysis, it was found that the band gap energy of TiO2-CeO2 nanoparticles decreases with the increase of the milling speed and milling time with constant TiO2:CeO2 weight percentage ratio. Obtained results ...suggest that mechanical ball milling process is a rapid, efficient and low energy consumption method to synthesize TiO2-CeO2 photocatalyst.
Keywords:
TiO2-CeO(2)nanopowder / Planetary ball milling / Response surface methodology / Photocatalytic degradationSource:
Advanced Powder Technology, 2018, 29, 9, 2129-2139Publisher:
- Elsevier Science Bv, Amsterdam
Projects:
- Dynamics of nonlinear physicochemical and biochemical systems with modeling and predicting of their behavior under nonequilibrium conditions (RS-172015)
- The study of physicochemical and biochemical processes in living environment that have impacts on pollution and the investigation of possibilities for minimizing the consequences (RS-172001)
- The development of efficient chemical-engineering processes based on the transport phenomena research and process intensification principles (RS-172022)
- Rational design and synthesis of biologically active and coordination compounds and functional materials, relevant for (bio)nanotechnology (RS-172035)
- Chemical and structural designing of nanomaterials for application in medicine and tissue engineering (RS-172026)
- Micro- Nanosystems and Sensors for Electric Power and Process Industry and Environmental Protection (RS-32008)
DOI: 10.1016/j.apt.2018.05.021
ISSN: 0921-8831