magnetite, CCRPE, MB, photocatalyst


In this work, the phase composition, microstructure, and photocatalytic activity of the obtained magnetic adsorbent were determined by IR spectroscopy, X-ray phase analysis, SEM electron microscopy, and EDRS analysis. The process of photocatalytic decomposition of methylene blue in the presence of magnetite under UV radiation was considered. The influence of such factors, as the UV radiation treatment time, the adsorbent and hydrogen peroxide concentrations has been studied. The experimental-statistical model was developed using the central composite rotatable design method (CCRD) by means of the STATISTICA 10 software package. The variance analysis of the obtained model was carried out. The coefficients significance and the statistical model adequacy were checked. The calculated values of the degree of methylene blue decomposition were confirmed by experimental results. The optimal process parameters, namely, the processing time and the concentration of the photocatalyst and hydrogen peroxide, were also determined. The mass of the adsorbent and the processing time were the main parameters influencing the degree of degradation. The following significance of the factors was established: ttreat > mads > VH2O2.

The optimal conditions for the methylene blue destruction corresponded to the H2O2 concentration of 0.75 ml / 100 ml solution and the catalyst of 0.1 g / 100 ml Fe3O4; the time of UV irradiation was 60 minutes.


Repon, M. R., Islam, M. T., Al Mamun, M. A. (2017). Ecological risk assessment and health safety speculation during color fastness properties enhancement of natural dyed cotton through metallic mordants. Fashion and Textiles, 4(1), 1–17.

Hassaan, M. A., El Nemr, A., Hassaan, A. (2017). Health and environmental impacts of dyes: mini review. American Journal of Environmental Science and Engineering, 1(3), 64–67.

Honda, W., Harada, S., Arie, T., Akita, S., Takei, K. (2014). Wearable, human‐interactive, health‐monitoring, wireless devices fabricated by macroscale printing techniques. Advanced Functional Materials, 24(22), 3299–3304.

Kammoolkon, R., Taneepanichskul, N., & Taneepanichskul, S. (2021). Respiratory symptoms and their association with exposure to respiratory dust among indigo-dyed cotton workers. Archives of Environmental & Occupational Health, 1–6.

Thakker, A. M. (2020). Sustainable processing of cotton fabrics with plant-based biomaterials Sapindus mukorossi and Acacia concinna for health-care applications. The Journal of The Textile Institute, 1-9.

Frolova, L. A., Shapa, N. N. (2011). Technology of extraction manganese compounds from the discharge water of metallurgical enterprises with the use of ultrasound. Metallurgical and Mining Industry, 3(6), 287.

Li, M., Qiang, Z., Pulgarin, C., Kiwi, J. (2016). Accelerated methylene blue (MB) degradation by Fenton reagent exposed to UV or VUV/UV light in an innovative micro photo-reactor. Applied Catalysis B: Environmental, 187, 83–89.

Singh, J., Chang, Y. Y., Koduru, J. R., Yang, J. K. (2018). Potential degradation of methylene blue (MB) by nano-metallic particles: A kinetic study and possible mechanism of MB degradation. Environmental Engineering Research, 23(1), 1–9.

Baghriche, O., Rtimi, S., Pulgarin, C., Kiwi, J. (2017). Polystyrene CuO/Cu2O uniform films inducing MB-degradation under sunlight. Catalysis Today, 284, 77–83.

Duan, Y., Sun, S., Sun, Y. (2019). Mastering surface reconstruction of metastable spinel oxides for better water oxidation. Advanced materials, 31(12), 1807898.

Tang, J., Zou, Z., Katagiri, M., Kako, T., Ye, J. (2004). Photocatalytic degradation of MB on MIn2O4 (M= alkali earth metal) under visible light: effects of crystal and electronic structure on the photocatalytic activity. Catalysis today, 93, 885–889.

Senthilraja, A., Subash, B., Krishnakumar, B., Rajamanickam, D., Swaminathan, M., & Shanthi, M. (2014). Synthesis, characterization and catalytic activity of co-doped Ag–Au–ZnO for MB dye degradation under UV-A light. Materials science in semiconductor processing, 22, 83–91.

Sgroi, M., Anumol, T., Vagliasindi, F. G., Snyder, S. A., Roccaro, P. (2021). Comparison of the new Cl2/O3/UV process with different ozone-and UV-based AOPs for wastewater treatment at pilot scale: Removal of pharmaceuticals and changes in fluorescing organic matter. Science of The Total Environment, 765, 142720.

Capodaglio, A. G. (2020). Critical Perspective on Advanced Treatment Processes for Water and Wastewater: AOPs, ARPs, and AORPs. Applied Sciences, 10(13), 4549.

Dung, N. T., Thu, T. V., Van Nguyen, T., Thuy, B. M., Hatsukano, M., Higashimine, K., ... & Zhong, Z. (2020). Catalytic activation of peroxymonosulfate with manganese cobaltite nanoparticles for the degradation of organic dyes. RSC Advances, 10(7), 3775–3788.

Zhang, K., Sun, D., Ma, C., Wang, G., Dong, X., Zhang, X. (2020). Activation of peroxymonosulfate by CoFe2O4 loaded on metal-organic framework for the degradation of organic dye. Chemosphere, 241, 125021.

Wen, D., Li, W., Lv, J., Qiang, Z., Li, M. (2020). Methylene blue degradation by the VUV/UV/persulfate process: effect of pH on the roles of photolysis and oxidation. Journal of hazardous materials, 391, 121855.

Atta, A. M., Moustafa, Y. M., Al-Lohedan, H. A., Ezzat, A. O., Hashem, A. I. (2020). Methylene blue catalytic degradation using silver and magnetite nanoparticles functionalized with a poly (ionic liquid) based on quaternized dialkylethanolamine with 2-acrylamido-2-methylpropane sulfonate-co-vinylpyrrolidone. ACS omega, 5(6), 2829–2842.

Rehman, A., Daud, A., Warsi, M. F., Shakir, I., Agboola, P. O., Sarwar, M. I., & Zulfiqar, S. (2020). Nanostructured maghemite and magnetite and their nanocomposites with graphene oxide for photocatalytic degradation of methylene blue. Materials Chemistry and Physics, 256, 123752

Nasab, A. S., Adib, K., Afshari, H., Ganjali, M. R., Rahimi-Nasrabadi, M., Ahmadi, F. (2021). Synthesis of praseodymium titanate nanoparticles supported on core–shell silica coated magnetite via mild condition and their photocatalytic capability evaluation. Journal of Materials Science: Materials in Electronics, 1–12.

Frolova, L. (2020). Photocatalytic activity of spinel ferrites CoxFe3−xO4 (0.25< x< 1) obtained by treatment contact low-temperature non-equilibrium plasma. Applied Nanoscience, 1–6.

Cifci, D. I., & Meric, S. (2020). Synthesis of magnetite iron pumice composite for heterogeneous Fenton-like oxidation of dyes. Advances in environmental research, 9(3), 161–173.

Frolova, L. A., Derhachov, M. P. (2017). The Effect of Contact Non-equilibrium Plasma on Structural and Magnetic Properties of MnХFe3−XО4 Spinels. Nanoscale research letters, 12(1), 505.

Frolova, L., Derimova, A., Butyrina, T. (2018). Structural and magnetic properties of cobalt ferrite nanopowders synthesis using contact non-equilibrium plasma. Acta Physica Polonica A, 133(4), 1021–1023.