Study on photocatalytic degradation of amoxicillin in wastewater by Bi2WO6/nano-ZnO

Recent advances in removal of pharmaceutical pollutants in wastewater using metal oxides and carbonaceous materials as photocatalysts: a review

“…The visible-light-driven MIL-53(Al)/ZnO hierarchical photocatalyst produced 100% removal of amoxicillin corresponding to an initial amoxicillin concentration of 10 mg L −1 , solution pH 4.5 and catalyst dose of 1.0 g L −1 . 190 Recently, Liu and others 191 reported significantly high degradation efficiency of amoxicillin (93.10%) in wastewater using Bi 2 WO 6 /nano-ZnO (1 : 3) after 120 min in comparison to ZnO and Bi 2 WO 6 . It is anticipated that the reduction in band gap energy of Bi 2 WO 6 /nano-ZnO (1 : 3) could prevent the recombination of photogenerated charge carriers.…”

“…Hence, it is necessary to conduct a large amount of research on the treatment and removal of amoxicillin from wastewater using a variety of photocatalysts before discharging it into the natural aquatic environment. 149–216…”

Photocatalytic degradation of RhB in wastewater by zinc ion-doped Bi5O7I

“…7 Photocatalysis combined with solar energy effectively decomposes organic pollutants into carbon dioxide and water. 8 Nevertheless, there are still several drawbacks for the photocatalysts that are now in use, such as large forbidden bands, which result in limited usage of visible light, 9 and the high recombination rate of photogenerated electronhole pairs. Because of the stable chemical characteristics of [Bi 2 O 2 ] 2+ , the special layered structure and the integrated electrostatic field, BiOX (x = Cl, Br, I) is a novel bismuth-based photocatalyst that can efficiently enhance the separation of photogenerated carriers.…”

Preparation and photocatalytic properties of Bi2WO6/Ag/ZnO composite nanomaterials

“…Chen et al [28] developed ZnO/ Bi 2 WO 6 -CC layered heterostructures, exhibiting a 96.9% photodegradation efficiency of methylene blue under UV light within 100 min. Liu et al [29] used Bi 2 WO 6 /nano-ZnO materials to achieve a 93.1% degradation rate of amoxicillin under visible light. These examples indicate that the ZnO/ Bi 2 WO 6 heterojunction effectively reduces electron-hole recombination, enhancing photocatalytic performance.…”