Plasmonic enhanced branched Ag sensitized Cu2O–CuO/TiO2 heterojunction with unprecedented photocatalytic degradation under visible light

Emerald eco-synthesis: harnessing oleander for green silver nanoparticle production and advancing photocatalytic MB degradation with TiO2&CuO nanocomposite

“…5 b. Hence; Ag NPs modification of photocatalysts TCA 1, TCA 2 and TCA 3 endowed the TiO 2 /CuO @ Ag ternary composites the lowest reflectance, the optimum composite TCA 2 , as a result of the synergetic effect among components 41 , 42 . It has been demonstrated that lowering the composite's band gap energy improves the photocatalytic reaction by allowing the produced photocatalyst to absorb more photons and become more sensitive to visible light.…”

“… Photocatalyst Dye type Dye concentration (ppm) Catalyst dose (g/L) Preparation methode Degradation (%) Ref. Ag@Cu 2 O CuO/TiO 2 MB 20 0.5 Sol–gel technique 83.00 42 CuO-TiO 2 MB 20 1 Green synthesis usingC.benghalensis plant extracts 33.00 47 Ag@CuO MB 20 2 Apolyol-mediated refluxing method 94.43 42 Ag/TiO 2 /CuFe 2 O 4 MB 5 1 Hydrothermal method 85,00 48 TiO 2 @CoFe 3 O 4 MB 100 1.0 Co-preciptation method 91,00 5 Pt/ZnO-MWCNT MB 100 0.4 sol–gel method 74,00 47 Ag@CuO/TiO 2 MB 20 0.5 Green synthesis using nerium oleander leaves extract 98.87 This work …”

“…It was tested against MB dye at a concentration of 20 ppm, with a catalyst dose of 0.5 g/L. The degradation percentage achieved was 83.00% 42 . Additionally, CuO-TiO 2 catalyst was synthesized using a green synthesis method involving C. benghalensis plant extracts.…”

“…Also, the catalyst of Ag@CuO that prepared using an apolyol-mediated refluxing method, was tested against MB dye at a concentration of 20 ppm with a catalyst dose of 2 g/L. It achieved a degradation percentage of 94.43% 42 . Furthermore, the hydrothermal method was used to synthesize of Ag/TiO 2 /CuFe 2 O 4 photocatalyst and then tested against MB dye at a concentration of 5 ppm, with a catalyst dose of 1 g/L.…”