作者: Muhittin Öztürk , Mustafa Okutan , Ramazan Coşkun , Betül Çolak , Orhan Yalçın
DOI: 10.1016/J.MOLLIQ.2020.114574
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摘要: Abstract Morphological, structural, optical and dielectric properties, which provide important information about the technological applications of pure different dose (2.5%, 5.0%, 7.5% 10.0%) Fe3O4 nanoparticles (NPs) doped hydrogels were analyzed in detail this study. The complex parameters all samples are related to electrode/interface polarization (grain boundary), relaxation grain effects accordance with Maxwell-Wagner theory Brownian motion broadband frequency regions. Experimental plane plots electrical modulus for explained by Havriliak Negami model represented two times (α γ) associated resistances created boundary (α) (γ). In high region, compatible Cole-Cole corresponding equivalent circuit (RC) Smith Chart diagram. Koop's electron hopping mechanism formed between Fe3+ Fe2+ ions octahedral lattice effective on conductivity values samples. As molarity NPs increased, logarithmic samples, a function angular defined Jonscher Power Law, Nearly Constant Loss Super Linear Law mechanisms, generally increased. From experimental results, it was concluded that doses can be used as an electrochemical biosensor bio-systems since has dielectric, capacitance, low impedance values.