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

M Aravind,M Sony Michael Mary,M Amalanathan

doi:10.1007/s42452-021-04281-5

M Aravind, M Sony Michael Mary + Show 1 more

Open Access

https://doi.org/10.1007/s42452-021-04281-5

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Abstract

In this present work, Titanium dioxide nanoparticles (TiO2 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 TiO2 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 TiO2 NPs at 385 nm represents the visible region spectrum. The Ti–O–Ti and Ti–O vibration bond formation confirms the formation of TiO2 NPs. The SEM image of TiO2 NPs reveals that the spherical shaped NPs with randomly arranged manner. The obtained results have revealed that the property of TiO2 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 TiO2 NPs exhibits a higher degradation efficiency compared to chemically synthesized TiO2 NPs. The antibacterial activity of prepared TiO2 NP’s was studied using grams-positive and gram-negative strains. The biological activities of green synthesized TiO2 NPs are enhanced compared to the chemically synthesized TiO2 NPs. Hence the degradation efficiency and zone inhibition layer indicate that the prepared TiO2 NPs are the potential candidate for environmental and biomedical applications.Graphic abstract

Highlights

Nanomaterials belongs to the range of below 100 nm has unique chemical, physical, electrical, and mechanical properties and diversely utilized in the field of medical, biotechnology, microbiology, pharmaceutics and chemistry, engineering, inexpensive catalyst, cytotoxicity study, etc. [1,2,3]
X-Ray Diffraction pattern of investigated titanium dioxide nanoparticles was recorded by using PANanalytical XPERT PRO Diffractometer
The degradation efficiency of bio-mediated TiO2 and chemically investigated TiO2 NPs are 89% and 82% respectively. In this present work, TiO2 NPs are successfully synthesized by green synthesis and hydrothermal method

Summary

Introduction

Nanomaterials belongs to the range of below 100 nm has unique chemical, physical, electrical, and mechanical properties and diversely utilized in the field of medical, biotechnology, microbiology, pharmaceutics and chemistry, engineering, inexpensive catalyst, cytotoxicity study, etc. [1,2,3]. Owing to its large surface area, nanomaterial synthesis methods are classified into the physical and chemical methods. These methods are not suitable for medicinal and biological applications because of its harmful nature to the environment. Among them, TiO2 NPs are a well-known semiconductor with a wide bandgap of 3.2 eV for anatase and 3.0 eV for rutile phase [9], but the brookite phase is rare to obtain [10]. The transition metal oxide, mainly TiO2, is widely used in cosmetics, photocatalysts, medicines, sensors, and solar cell applications because of its peculiar properties like interconnected pores and large surface area [12]

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