| Autor: |
Vijai Anand, Kabali, Aravind Kumar, Jagadeesan, Keerthana, Kamalakannan, Deb, Paribrita, Tamilselvan, Selvaraj, Theerthagiri, Jayaraman, Rajeswari, Velayutham, Sekaran, Sekaran Muthamil Selvan, Govindaraju, Kasivelu |
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| Zdroj: |
ChemistrySelect; 5/8/2019, Vol. 4 Issue 17, p5178-5184, 7p |
| Abstrakt: |
In the present investigation, single step, economic and environmentally friendly preparation of ZnO‐MgO nanocomposites (ZnO, Zn25Mg75O, Zn50Mg50O, Zn75Mg25O and MgO) as photocatalyst using marine brown alga (Turbinaria ornata) as a stabilizing agent is carried out. The green route synthesized nanocomposites were analysed using various spectroscopy and microscopy techniques. The efficiency of the prepared nanocomposites materials were assessed by photocatalytic degradation of Rhodamine B (RhB) as model dye under visible light illumination. The nanocomposites displayed an improved visible light induced photocatalytic degradation of RhB. Among which, Zn50Mg50O nanocomposite sample exhibited better photocatalytic degradation performance than others samples (ZnO, MgO, Zn25Mg75O and Zn75Mg25O) which might be due to the positive synergistic effect and also by a reduced recombination of charge carriers. Further, the transient photocurrent and electrochemical impedance spectroscopy (EIS) analysis revealed that the Zn50Mg50O nanocomposite has quicker migration of light induced charge‐carriers. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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