Green Synthesis of CS-TiO2 NPs for Efficient Photocatalytic Degradation of Methylene Blue Dye

Abstract

The development of a non-malignant and sustainable treatment approach for eradicating mephitic organic dyes from freshwater resources is a daunting task. In a similar vein, the current work investigates the mitigation of methylene blue (MB) dye utilizing titanium dioxide nanoparticles (CS-TiO2 NPs) synthesized using cannabis sativa (bhang) leaf extract via a greener approach. The CS-TiO2 NPs are well characterized through XRD, FE-SEM, HR-TEM, UV-Vis spectroscopy, FTIR spectroscopy, and EDS spectroscopy. Microscopic studies confirm that the average particle size distribution of the individual particles was found to be in the range of 12.5 ± 1.5 nm, whereas the average size of the CS-TiO2 NPs aggregates is 24.5 ± 11.5 nm. Additionally, the synthesized CS-TiO2 NPs manifested remarkable photocatalytic degradation potential against methylene blue dye with a degradation efficiency of 98.2% and an apparent rate constant of 0.0398 min−1. As a result, this research offers a green/sustainable alternative for water purification.

Carbon‐based composite nanofibers for photocatalytic degradation of methylene blue dye under visible light

“…The significant peaks at two values of 22.55° verified the composite's crystalline nature. The presence of a CC bond at one prominent peak at 2Ɵ of 30 further suggests that the film is significantly carbonized 18 …”

“…A syringe pump was used to regulate the polymeric arrangement's flow rate. The 1 mL/h flow rate was the most effective 18 …”

“…GO/CQDs/PAN composite showed large improved photocatalytic action toward photodegradation of MB dye under visible light illumination, which is enabled by the increased surface area, (increased number of photocatalytic active sites) and the better adequacy of the division of photo‐generated electron‐holes pairs through an active charge transfer system 18 . The durability and stability of photocatalysts are additionally analyzed.…”

Poly(butylene adipate-co-terephthalate)/Poly(lactic acid) Polymeric Blends Electrospun with TiO2-R/Fe3O4 for Pollutant Photodegradation

“…This special attention to water bodies is due to the fact that the demands are growing more and more due to the accelerated increase in population, which generates a greater consumption of quality water. However, the quality of water has decreased alarmingly, and one of the factors that contributes most to this is the incorrect disposal of waste [ 1 ].…”

Daylight Photoactive TiO2 Sol-Gel Nanoparticles: Sustainable Environmental Contribution

“…Synthetic titania micro- or NPs are, in the laboratory or industrially, produced through atomic layer deposition (ALD) [ 50 , 51 , 52 ], extraction pyrolytic [ 53 , 54 , 55 ], hydrothermal [ 56 , 57 , 58 ] and solvothermal [ 59 , 60 , 61 ], or sol–gel [ 62 , 63 , 64 ] methodologies. The authors’ group developed a novel, room-temperature, base-catalyzed, sol–gel protocol to synthesize amorphous TiO 2 NPs [ 65 ], based on the classical Stöber method ( Figure 4 ).…”