Synthesis of micro-nano Ag3PO4/ZnFe2O4 with different organic additives and its enhanced photocatalytic activity under visible light irradiation |
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| Affiliation: | 1. Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;2. State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;1. Laboratory Physico-Chemistry of Advanced Materials, University of Djillali Liabes, BP 89, Sidi- Bel- Abbes 22000, Algeria;2. Institute of Nano Electronic Engineering, University Malaysia Perlis, 01000 Kangar, Perlis, Malaysia;3. Materials Science Laboratory, School of Physics, Vigyan Bhavan, Devi Ahilya University, Khandwa Road Campus, Indore 452001, India;4. Djillali Liabes University, Faculty of Exact Sciences, Department of Physics, PO Box 089, Sidi Bel Abbes 22000, Algeria;1. Atatürk University, Sciences Faculty, Department of Chemistry, 25240 Erzurum, Turkey;2. Atatürk University, East Anatolian High-Technology Research and Application Center, 25240 Erzurum, Turkey;1. Material Science Laboratory, Department of Electronic Science, University of Delhi South Campus, Benito Juarez Road, New Delhi 110021, India;2. Department of Electronics, SGTB Khalsa College, University of Delhi, Delhi 110007, India;3. Department of Electronics, BCAS, University of Delhi, New Delhi 110075, India |
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| Abstract: | Several novel micro-nano Ag3PO4/ZnFe2O4 with excellent magnetic separation property and photocatalytic performance were successfully synthesized using different organic additives for the first time. In the composite, Ag3PO4 with flower-like, quadrangular prism and flake structures were obtained when the organic additive is hexadecyl trimethyl ammonium bromide (CTAB), sodium diethyldithiocarbamate (DDTC), or DL-malic acid (DLMA), respectively, while the ZnFe2O4 showed uniform spherical structure. From the results of the photocatalytic activity analysis, the Ag3PO4/ZnFe2O4 gained with the organic additive of DDTC showed the highest photocatalytic capability for 2, 4-dichlorophenol (2, 4-DCP) degradation under visible light irradiation compared with those of CTAB and DLMA as the additives. Moreover, the composition of the composite seriously influences the photocatalytic activity, and when the mass ratio of Ag3PO4 and ZnFe2O4 in the Ag3PO4/ZnFe2O4 (DITCH) is 9:1, the apparent photo degradation rate constant of 2, 4-DC is 0.0155 min?1, which is 5.74 times of ZnFe2O4 (0.0027 min?1) and 1.89 times of Ag3PO4 (0.0082 min?1). Finally, the photocatalytic mechanism of Ag3PO4/ZnFe2O4 was discussed based on the heterojunction energy-band theory and Z-Scheme theory in detail. |
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| Keywords: | Semiconductors Organic additives Visible light photocatalysis |
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