Effect of Cu doping on the photocatalytic activity of InVO4 for hazardous dye photodegradation under LED light and its mechanism
Cu doped InVO4 (xCu-InVO4 (x = 0.06–0.15 wt %) was synthesized by a facile one-pot hydrothermal method for the removal of methylene blue (MB) under LED light irradiation. The X-ray photoelectron spectroscopy (XPS) analysis indicated the coexistence of V5+ and V4+ species due to the O-deficient natur...
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oai:doaj.org-article:e836f6371bd847528668e536e8df9fe32021-11-06T11:16:25ZEffect of Cu doping on the photocatalytic activity of InVO4 for hazardous dye photodegradation under LED light and its mechanism0273-12231996-973210.2166/wst.2021.244https://doaj.org/article/e836f6371bd847528668e536e8df9fe32021-08-01T00:00:00Zhttp://wst.iwaponline.com/content/84/3/576https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732Cu doped InVO4 (xCu-InVO4 (x = 0.06–0.15 wt %) was synthesized by a facile one-pot hydrothermal method for the removal of methylene blue (MB) under LED light irradiation. The X-ray photoelectron spectroscopy (XPS) analysis indicated the coexistence of V5+ and V4+ species due to the O-deficient nature of the xCu-InVO4. The synthesized photocatalysts displayed a morphology of spherical and square shaped particles (20–40 nm) and micro-sized rectangle rods with a length range of 100–200 μm. The xCu-InVO4 exhibited superior adsorption and photodegradation efficiency compared to pristine InVO4 and TiO2 due to the presence of O2 vacancies, V4+/V5+ species, and Cu dopant. The optimum reaction conditions were found to be 5 mg L−1 (MB concentration), pH 6, and 100 mg of photocatalyst mass with a removal efficiency and mineralization degree of 100% and 96.67%, respectively. The main active species responsible for the degradation of MB were •OH radicals and h+. Reusability studies indicated that the 0.13Cu-InVO4 was deactivated after a single cycle of photocatalytic reaction due to significant leaching of V4+ and Cu2+ species. HIGHLIGHTS xCu-InVO4 (x = 0.06 − 0.15 wt%) were synthesized via the hydrothermal method.; 0.13Cu-InVO4 active under the LED light irradiation for MB removal.; Optimized catalytic conditions displayed complete MB removal with >96% mineralization.; 0.13Cu-InVO4 deactivated after first use due to V4+ and Cu2+ species leaching.;Mohamed FaisalAnwar IqbalFarook AdamR. JothiramalingamIWA Publishingarticlecu dopinginvo4ledmethylene bluevisible lightEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 84, Iss 3, Pp 576-595 (2021) |
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cu doping invo4 led methylene blue visible light Environmental technology. Sanitary engineering TD1-1066 |
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cu doping invo4 led methylene blue visible light Environmental technology. Sanitary engineering TD1-1066 Mohamed Faisal Anwar Iqbal Farook Adam R. Jothiramalingam Effect of Cu doping on the photocatalytic activity of InVO4 for hazardous dye photodegradation under LED light and its mechanism |
| description |
Cu doped InVO4 (xCu-InVO4 (x = 0.06–0.15 wt %) was synthesized by a facile one-pot hydrothermal method for the removal of methylene blue (MB) under LED light irradiation. The X-ray photoelectron spectroscopy (XPS) analysis indicated the coexistence of V5+ and V4+ species due to the O-deficient nature of the xCu-InVO4. The synthesized photocatalysts displayed a morphology of spherical and square shaped particles (20–40 nm) and micro-sized rectangle rods with a length range of 100–200 μm. The xCu-InVO4 exhibited superior adsorption and photodegradation efficiency compared to pristine InVO4 and TiO2 due to the presence of O2 vacancies, V4+/V5+ species, and Cu dopant. The optimum reaction conditions were found to be 5 mg L−1 (MB concentration), pH 6, and 100 mg of photocatalyst mass with a removal efficiency and mineralization degree of 100% and 96.67%, respectively. The main active species responsible for the degradation of MB were •OH radicals and h+. Reusability studies indicated that the 0.13Cu-InVO4 was deactivated after a single cycle of photocatalytic reaction due to significant leaching of V4+ and Cu2+ species. HIGHLIGHTS
xCu-InVO4 (x = 0.06 − 0.15 wt%) were synthesized via the hydrothermal method.;
0.13Cu-InVO4 active under the LED light irradiation for MB removal.;
Optimized catalytic conditions displayed complete MB removal with >96% mineralization.;
0.13Cu-InVO4 deactivated after first use due to V4+ and Cu2+ species leaching.; |
| format |
article |
| author |
Mohamed Faisal Anwar Iqbal Farook Adam R. Jothiramalingam |
| author_facet |
Mohamed Faisal Anwar Iqbal Farook Adam R. Jothiramalingam |
| author_sort |
Mohamed Faisal |
| title |
Effect of Cu doping on the photocatalytic activity of InVO4 for hazardous dye photodegradation under LED light and its mechanism |
| title_short |
Effect of Cu doping on the photocatalytic activity of InVO4 for hazardous dye photodegradation under LED light and its mechanism |
| title_full |
Effect of Cu doping on the photocatalytic activity of InVO4 for hazardous dye photodegradation under LED light and its mechanism |
| title_fullStr |
Effect of Cu doping on the photocatalytic activity of InVO4 for hazardous dye photodegradation under LED light and its mechanism |
| title_full_unstemmed |
Effect of Cu doping on the photocatalytic activity of InVO4 for hazardous dye photodegradation under LED light and its mechanism |
| title_sort |
effect of cu doping on the photocatalytic activity of invo4 for hazardous dye photodegradation under led light and its mechanism |
| publisher |
IWA Publishing |
| publishDate |
2021 |
| url |
https://doaj.org/article/e836f6371bd847528668e536e8df9fe3 |
| work_keys_str_mv |
AT mohamedfaisal effectofcudopingonthephotocatalyticactivityofinvo4forhazardousdyephotodegradationunderledlightanditsmechanism AT anwariqbal effectofcudopingonthephotocatalyticactivityofinvo4forhazardousdyephotodegradationunderledlightanditsmechanism AT farookadam effectofcudopingonthephotocatalyticactivityofinvo4forhazardousdyephotodegradationunderledlightanditsmechanism AT rjothiramalingam effectofcudopingonthephotocatalyticactivityofinvo4forhazardousdyephotodegradationunderledlightanditsmechanism |
| _version_ |
1718443766927327232 |