La-doped WO3@gCN Nanocomposite for Efficient degradation of cationic dyes |
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| Affiliation: | 1. Institute of chemistry, Baghdad-ul-Jadeed Campus, The Islamia University of Bahawalpur, 63100, Pakistan;2. Department of Chemistry, Faculty of Science, University of Ostrava, 30. Dubna 22, Ostrava, 701 03, Czech Republic;4. Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia;5. Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia;6. School of Chemistry, University of the Punjab, Lahore, Pakistan;7. Department of Science and Technology, University College-Ranyah, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia;8. Department of Chemistry, College of Science, University of Hafr Al Batin, P.O. Box 1803, Hafr Al Batin, 31991, Saudi Arabia;1. College of Electronic Information and Optical Engineering, Nankai University, Tianjin, 300350, China;2. Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin, Tianjin, 300350, China;3. School of Physics, Nankai University, Tianjin, 300350, China;4. School of Opto-electronic Information, University of Electronic Science and Technology, Chengdu, 610054, China;5. Engineering Research Center of Thin Film Optoelectronics Technology, Ministry of Education, Nankai University, Tianjin, 300350, China;1. College of Civil Engineering, Shaoxing University, Shaoxing, 312000, China;2. Key Laboratory of Rock Mechanics and Geohazards of Zhejiang Province, Shaoxing, 312000, China;3. Faculty of Civil Engineering, College of Engineering, Can Tho University, Campus II, 3/2 Street, Ninh Kieu District, Can Tho City, 94000, VietNam;4. School of Civil Engineering, Central South University, Changsha, 410075, China;5. College of Civil Science and Engineering, Yangzhou University, Yangzhou, 225127, China;6. Zhejiang Leibang New Building Materials Co., Ltd., Dongyang, 322100, China;1. Saint-Petersburg State Institute of Technology, Saint Petersburg, 190013, Russian Federation;2. Ioffe Institute, Saint Petersburg, 194021, Russian Federation;1. Kunming Key Laboratory of Energy Materials Chemistry, Yunnan Minzu University, Kunming, 650500, Yunnan, PR China;2. Process Metallurgy Research Group, Faculty of Technology, University of Oulu, Finland;1. Engineering Technology Research Center of Magnetic Materials, School of Materials Science and Engineering, Anhui University, Hefei, 230601, People’s Republic of China;2. Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, Anhui, China;1. School of Electronics and Information Engineering, Guiyang University, Guiyang, 550005, Guizhou, China;2. Key Laboratory of Functional Composite Materials of Guizhou Province, College of Big Data and Information Engineering, Guizhou University, Guiyang, 550025, Guizhou, China;3. College of Computer and Information Engineering, Guizhou University of Commerce, Guiyang, 550014, Guizhou, China |
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| Abstract: | In present investigation, gCN supported carbon coated Lanthanum doped tungsten oxide (C@LWO/gCN) composite were synthesized via hydrothermal approach. The photodegradation of different cationic dyes like malachite green (MG), crystal violet (CV) and methylene blue (MB) has been carried out under prepared C@LWO/gCN composite. Furthermore, the comparative photodegradation was also performed using pristine LWO and C@LWO nanowires. The synthesized samples were characterized via physiochemical techniques such as XRD, FESEM, EDX, FTIR, BET and UV/Vis spectroscopy. The results proved incorporation of La ions into WO3 lattice and reduced band gap of doped sample which significantly boost up the capability of the material towards photodegradation. The maximum degradation was found out at pH = 6, 5 mg catalyst dose, 5 ppm dye concentration and 35 °C temperature. The achieved results proved that the trapping agents compete with prepared composite specie for the h+, e−, HO● and O2●- radicals. The obtained experimental records of photodegradation of cationic dyes using C@LWO/gCN composite has correlation with pseudo first order kinetics, Langmuir-Hinshelwood model and t1/2. The simplest facile synthetic approach, remarkable photodegradation performance against colored and colorless effluents suggest that C@LWO/gCN composite exhibit great potential for large-scale wastewater treatment. |
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| Keywords: | Photodegradation C@LWO/gCN Wastewater treatment gCN |
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