Enhancement of photocatalytic degradation of MB by recyclable Li/Mn 3 O 4 thin films
作者： F. Saadallah , M. Amlouk , T. Larbi , M. A. Amara , N. Mahdhi
DOI: 10.1007/S10854-021-05756-2
关键词:
摘要: Thin films of physical mixture Hausmannite Mn3O4 and lithium (Li) are synthesized by spray pyrolysis technique. Structural, morphological, optical, electrical, wettability, photocatalytic properties have been investigated. X-ray diffraction (XRD) Raman spectra, Scanning electron microscope (SEM) images, electrical measurements show that Li nanoparticles formed both on top surface the film inside grain boundaries. Bandgap Urbach energies optical relaxation time determined from transmittance T reflectance R spectra. Impedance spectroscopy shows charge separation increases with content, which improves efficiency film. The best is obtained for Li/Mn ratio 15%. Indeed, degradation methylene blue (MB) under ultraviolet (UV) visible light exposure, improved a factor 5.7 2.4, respectively, when compared to undoped Mn3O4. In addition, this exhibits high photostability (10 cycles consecutively) solar light. On other hand, hydrophobicity reveals hydrophilic character films.
springer.com
sci-hub.st 参考文章(52)
C. Mrabet, O. Kamoun, A. Boukhachem, M. Amlouk, T. Manoubi, Some physical investigations on hexagonal-shaped nanorods of lanthanum-doped ZnO Journal of Alloys and Compounds. ,vol. 648, pp. 826- 837 ,(2015) , 10.1016/J.JALLCOM.2015.07.009
Lixia Wang, Xianming Hou, Feng Li, Guofang He, Liqing Li, Hybrid ZnO/Ag nanocomposites: Fabrication, characterization, and their visible-light photocatalytic activity Materials Letters. ,vol. 161, pp. 368- 371 ,(2015) , 10.1016/J.MATLET.2015.08.135
Wang Kang, Xu Jimeng, Wang Xitao, The effects of ZnO morphology on photocatalytic efficiency of ZnO/RGO nanocomposites Applied Surface Science. ,vol. 360, pp. 270- 275 ,(2016) , 10.1016/J.APSUSC.2015.10.190
Yang Tian, Tetsu Tatsuma, Mechanisms and Applications of Plasmon-Induced Charge Separation at TiO2 Films Loaded with Gold Nanoparticles Journal of the American Chemical Society. ,vol. 127, pp. 7632- 7637 ,(2005) , 10.1021/JA042192U
Li-Xia Yang, Ying-Jie Zhu, Hua Tong, Wei-Wei Wang, Guo-Feng Cheng, Low temperature synthesis of Mn3O4 polyhedral nanocrystals and magnetic study Journal of Solid State Chemistry. ,vol. 179, pp. 1225- 1229 ,(2006) , 10.1016/J.JSSC.2006.01.033
Al-Nakib Chowdhury, Md Shafiul Azam, Md Aktaruzzaman, Abdur Rahim, None, Oxidative and antibacterial activity of Mn3O4. Journal of Hazardous Materials. ,vol. 172, pp. 1229- 1235 ,(2009) , 10.1016/J.JHAZMAT.2009.07.129
T. Larbi, M. Haj Lakhdar, A. Amara, B. Ouni, A. Boukhachem, A. Mater, M. Amlouk, Nickel content effect on the microstructural, optical and electrical properties of p-type Mn3O4 sprayed thin films Journal of Alloys and Compounds. ,vol. 626, pp. 93- 101 ,(2015) , 10.1016/J.JALLCOM.2014.11.088
Usman Ilyas, R. S. Rawat, T. L. Tan, P. Lee, R. Chen, H. D. Sun, Li Fengji, Sam Zhang, Oxygen rich p-type ZnO thin films using wet chemical route with enhanced carrier concentration by temperature-dependent tuning of acceptor defects Journal of Applied Physics. ,vol. 110, pp. 093522- ,(2011) , 10.1063/1.3660284
D.P. Dubal, D.S. Dhawale, R.R. Salunkhe, S.M. Pawar, C.D. Lokhande, A novel chemical synthesis and characterization of Mn3O4 thin films for supercapacitor application Applied Surface Science. ,vol. 256, pp. 4411- 4416 ,(2010) , 10.1016/J.APSUSC.2009.12.057
Xuming Yang, Qiyuan Chen, Xiaobo Ji, Mingjun Jing, Hongshuai Hou, Yingchang Yang, Yan Zhang, Electrochemically Alternating Voltage Induced Mn3O4/Graphite Powder Composite with Enhanced Electrochemical Performances for Lithium-ion Batteries Electrochimica Acta. ,vol. 155, pp. 157- 163 ,(2015) , 10.1016/J.ELECTACTA.2014.12.170