Synthesis of TiO2 nanoparticles by chemical and green synthesis methods and their multifaceted properties

• Published in: SN applied sciences Vol. 3; no. 4; p. 409
• Main Authors: Aravind, M., Amalanathan, M., Mary, M. Sony Michael
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01.04.2021; Springer Nature B.V
• Subjects: 4. Materials (general); Antibacterial activity; Applied and Technical Physics; Bacteria; Biomedical materials; Chemical reduction; Chemical synthesis; Chemistry/Food Science; Crystal structure; Earth Sciences; Efficiency; Energy consumption; Engineering; Environment; Ethanol; Flavonoids; Gram-negative bacteria; Gram-positive bacteria; Irradiation; Materials Science; Metal oxides; Methods; Methylene blue; Microorganisms; Morphology; Nanomaterials; Nanoparticles; Optical activity; Photodegradation; Phytochemicals; Research Article; Spectroscopy; Stabilizers (agents); Titanium; Titanium dioxide; Antibacterial activity; Hydrothermal method; Jasmine flower; Titanium dioxide; Methylene blue
• DOI: 10.1007/s42452-021-04281-5
• ISSN: 2523-3963

In this present work, Titanium dioxide nanoparticles (TiO 2 NPs) successfully synthesized using the chemical as well as the green synthesis routine. The ethanol provoked the chemical reduction of ions. In the green synthesis, jasmine flower extract was used as a reducing and stabilizing agent because it contains alkaloids, coumarins, flavonoids. The Rutile phase of TiO 2 NPs with an average crystalline size of 31–42 nm was revealed from the XRD pattern. From the UV–Visible spectroscopy, the optically active region of TiO 2 NPs at 385 nm represents the visible region spectrum. The Ti–O–Ti and Ti–O vibration bond formation confirms the formation of TiO 2 NPs. The SEM image of TiO 2 NPs reveals that the spherical shaped NPs with randomly arranged manner. The obtained results have revealed that the property of TiO 2 nanoparticles was similar in both processes. The Photodegradation of methylene blue dye was investigated and resulted in the maximum degradation efficiency of 92% is achieved at 120 min of irradiation. The Photodegradation study shows the biosynthesized TiO 2 NPs exhibits a higher degradation efficiency compared to chemically synthesized TiO 2 NPs. The antibacterial activity of prepared TiO 2 NP’s was studied using grams-positive and gram-negative strains. The biological activities of green synthesized TiO 2 NPs are enhanced compared to the chemically synthesized TiO 2 NPs. Hence the degradation efficiency and zone inhibition layer indicate that the prepared TiO 2 NPs are the potential candidate for environmental and biomedical applications. Graphic abstract