A Review on Green Synthesis of TiO2 NPs: Photocatalysis and Antimicrobial Applications

Abstract

Nanotechnology is a fast-expanding area with several applications in science, engineering, health, pharmacy, and other fields. Several physical/chemical techniques are often used to manufacture nanoparticles (NPs). Simpler, safer, and more cost-effective green synthesis technologies have recently been developed. The synthesis of titanium dioxide nanoparticles (TiO2 NPs) in a green/sustainable manner has gotten a lot of interest in the previous quarter. Bioactive components present in organisms such as plants and bacteria enhance the bio-reduction and capping processes. The biogenic synthesis of TiO2 NPs, as well as the synthesis methods and formation process, are discussed in this review. A range of natural reducing agents including proteins, enzymes, phytochemicals, and others, are involved in the synthesis of TiO2 NPs. The physics of antibacterial and photocatalysis applications were also thoroughly discussed. Finally, we provide an overview of current research and future concerns in biologically mediated TiO2 nanostructures-based feasible platforms for industrial applications.

Biosynthesis of TiO2 nanoparticles by Caricaceae (Papaya) shell extracts for antifungal application

“…Many investigators have conveyed the influences of Titania Nanoparticles on plant germinations as well as development. Titanium as a valuable element rises and helps growth 24 , increases plants productivity by 10–20% 25 and bio-mass as well as the growth of different plants class 26 and productions of free radical in propagated seed 27 . The unpredictable outcomes attained from the application of titanium dioxide nanoparticles can designate the positive as well as negative influences of this matter 28 Other reports stated that titanium dioxide nanoparticles reserved chlorophyll as well as carotenoid at optimum temperature 29 .…”

Green Nanotechnology: Recent Research on Bioresource-Based Nanoparticle Synthesis and Applications

“…e bioreduction and capping processes are aided by bioactive components found in organisms such as plants and bacteria [109].…”

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

“…Whereas membrane processes, such as membrane bioreactors, are effective, they are inefficient in terms of energy, and have a high operational cost [12]. The AOPs, for example, offer tremendous promise in the treatment of dye-based textile effluents because they can degrade soluble organic pollutants from wastewaters [13].…”

“…Furthermore, the use of plant extracts to make semiconducting TiO 2 NPs has piqued attention because it avoids the use of chemicals and other contaminants while also enhancing the environmental suitability of the remediation process. To date, few studies have explored the utilization of green TiO 2 NPs for dye degradation [13,24,25]. Nonetheless, there is a continual impulse for an ecologically friendly TiO 2 NP preparation.…”