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

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

Integrated Approaches for Adsorption and Incorporation Testing of Green-Synthesized TiO2NPs Mediated by Seed-Priming Technology in Punica granatum L.

“…In this study, titanium dioxide nanoparticles (TiO2NPs) were successfully synthesized using an aqueous extract of pomegranate peel and coffee residue as a reducing and stabilizing agent source, and the pure anatase form of titanium dioxide was confirmed by different characterization techniques. The color change noticed during the synthesis of TiO2NPs has been reported for similar studies when extracts from diverse types of plant parts were used [27,28]. The change in color is attributed to the gradual reduction of Ti +2 to Ti 0 [27].…”

A Review of Titanium Dioxide (TiO2)-Based Photocatalyst for Oilfield-Produced Water Treatment

“…Commonly, TiO 2 can be synthesized using numerous routes, such as sol-gel, hydrothermal/solvothermal, sonochemical process, template method, electrodeposition, chemical and physical vapor deposition, aerosol synthesis, precipitation, and microelmusion-mediated, milling, sputtering, pulse laser ablation, and evaporation–condensation, which can be classified into two approaches: top-down and bottom-up [ 31 , 32 , 33 , 34 , 35 , 36 ]. Different precursors were used to obtain TiO 2 , such as titanium isopropoxide (TTIP), titanium tetrabutoxide (TBT), titanium tetrachloride (TiCl 4 ), titanium alkoxide, and titanium trichloride (TiCl 3 ), which could affect the particle size, morphology, and physicochemical properties [ 37 , 38 , 39 ].…”

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

“…The bending vibrations of N-O stretching are depicted by the sharp band at 1529 cm −1 , whereas the bands at 2368 cm −1 and 2942 cm −1 are ascribed to O=C=O and C=C vibrations. The bands within the 4000-3500 cm −1 region inferred the H-bonded stretching and the free stretching of O-H vibrations [28,30]. According to established literature, cannabis sativa extract has a larger quantity of phenolics and flavonoids, which are essential for NP reduction, capping, and stability.…”

“…As shown in Figure 2, the FTIR spectrum of CS-TiO 2 NPs derived from cannabis sativa leaf extract was investigated in the range of 4000-500 cm −1 . As a result of inter-atomic vibrations, metal oxides generally have bands in the fingerprint region below 1000 cm −1 due to Ti-O and Ti-O-Ti bending vibrations [28]. The distinct band at 685 cm −1 is most usually related to the anatase phase and is attributed to the Ti-O vibration.…”