Hydrothermal synthesis of TiO2 nanorods: formation chemistry, growth mechanism, and tailoring of surface properties for photocatalytic activities

Gupta, Tanya; Samriti,; Cho, Junghyun; Prakash, Jai

doi:10.1016/j.mtchem.2021.100428

Cited by 75 publications

(57 citation statements)

References 283 publications

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“…TiO 2 is a semi-conductor metal oxide photocatalyst with a wide band gap of 3.2 eV and possibility to tune its bad gap characteristics [ 3 , 27 , 36 , 37 ]. TiO 2 exists in three different forms where, anatase structure is found to be more suitable for photocatalytic applications.…”

Section: Tio 2 Photocatalystsmentioning

confidence: 99%

“…The photocatalytic activities are generally influenced by the structural and surface modifications that include specific surface area, particle shape, size, adsorption nature etc. [ 27 , [36] , [37] , [38] ]. Therefore, the engineering of materials shape and size is one of the important factor along with surface modifications by coupling with other functional anti-microbial/viral nanomaterials that effectively influence the photocatalytic efficiency [ 27 , 36 , 39 , 40 ].…”

Section: Introductionmentioning

confidence: 99%

“…[ 27 , [36] , [37] , [38] ]. Therefore, the engineering of materials shape and size is one of the important factor along with surface modifications by coupling with other functional anti-microbial/viral nanomaterials that effectively influence the photocatalytic efficiency [ 27 , 36 , 39 , 40 ]. Such TiO 2 based nanocomposite photocatalyst show visible light active photocatalysis and effectively work in outdoor as well as indoor (light and dark) environment for multipurpose actions as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

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Photocatalytic TiO2 nanomaterials as potential antimicrobial and antiviral agents: Scope against blocking the SARS-COV-2 spread

Prakash

Cho

Mishra

2022

Micro and Nano Engineering

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The whole world is struggling with current coronavirus pandemic that shows urgent need to develop novel technologies, medical innovations or innovative materials for controlling SARS-CoV-2 infection. The mode of infection of SARS-CoV-2 is still not well known and seems to spread through surface, air, and water. Therefore, the whole surrounding environment needs to be disinfected with continuous function. For that purpose, materials with excellent antiviral properties, cost effective, environmental friendly and practically applicable should be researched. Titanium dioxide (TiO 2 ) under ultraviolet light produces strong oxidative effect and is utilized as photocatalytic disinfectant in biomedical field. TiO 2 based photocatalysts are effective antimicrobial/antiviral agents under ambient conditions with potential to be used even in indoor environment for inactivation of bacteria/viruses. Interestingly, recent studies highlight the effective disinfection of SARS-CoV-2 using TiO 2 photocatalysts. Here, scope of TiO 2 photocatalysts as emerging disinfectant against SARS-CoV-2 infection has been discussed in view of their excellent antibacterial and antiviral activities against various bacteria and viruses (e.g. H1N1, MNV, HSV, NDV, HCoV etc.). The current state of development of TiO 2 based nano-photocatalysts as disinfectant shows their potential to combat with SARS-CoV-2 viral infection and are promising for any other such variants or viruses, bacteria in future studies.

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Section: Tio 2 Photocatalystsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Photocatalytic TiO2 nanomaterials as potential antimicrobial and antiviral agents: Scope against blocking the SARS-COV-2 spread

Prakash

Cho

Mishra

2022

Micro and Nano Engineering

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“…Several ways to describing TiO2 growth mechanisms have been proposed, all of which are intriguing and useful in our study. When the four-fold Ti precursor ([Ti(RO)4]) combines with water, it becomes [Ti(RO)4] [21].…”

Section: Growth Mechanismmentioning

confidence: 99%

Physical Investigations of Titanium Dioxide Nanorods Film Prepared by Hydrothermal Technique

Saleh¹,

Salman²,

Dawood³

2021

JASN

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In this work, well-oriented and homogeneous titanium dioxide (TiO2) nanorods (NRs) was synthesized by hydrothermal method. In this method, vertically aligned arrays of TiO2 were built on the conductive Fluorine-Tin-Oxide (FTO) glass substrate. Nanoparticles (NRs) of TiO2 showed a tetragonal shape with a square top face, according to the image of the field emission scanning electron microscope (FE-SEM). The TiO2 NRs are polycrystalline, having two phases: rutile and anatase, according to X-ray diffraction (XRD) analysis. The optical properties of a TiO2 nanorods arrays were examined, including transmittance, absorption coefficient, and energy bandgap. An optical energy band gap of 3.18 eV was obtained. According to the photoluminescence emission measurement, the energy bandgap was 3.3 eV. For further study of the optical properties of the TiO2 Nanorods films, reflectance spectrum was used as a function of wavelength to estimate the value of the energy bandgap and its value was 3.45 eV. By comparing the values obtained from the three methods, it is found that they are closely alike, which confirms the formation of the TiO2 nanostructure.

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“…Reaction inside hydrothermal reactor as a closed system is still not clear. 114 Recently, graphene oxide property to align with flow with resin (thermoset) fixation effect have been explored to see inside this mysterious black box (hydrothermal reactor). A shown in Figure 4a throws light on the annular distribution of assembled-GO and axisymmetric poloidal structure and inferred the annular convection.…”

Section: Hydrothermalmentioning

confidence: 99%

Recent advances in ultra-low temperature (sub-zero to 100 °C) synthesis, mechanism and applications of titania (TiO₂) nanoparticles

et al. 2021

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Hydrothermal synthesis of TiO2 nanorods: formation chemistry, growth mechanism, and tailoring of surface properties for photocatalytic activities

Cited by 75 publications

References 283 publications

Photocatalytic TiO2 nanomaterials as potential antimicrobial and antiviral agents: Scope against blocking the SARS-COV-2 spread

Photocatalytic TiO2 nanomaterials as potential antimicrobial and antiviral agents: Scope against blocking the SARS-COV-2 spread

Physical Investigations of Titanium Dioxide Nanorods Film Prepared by Hydrothermal Technique

Recent advances in ultra-low temperature (sub-zero to 100 °C) synthesis, mechanism and applications of titania (TiO₂) nanoparticles

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Hydrothermal synthesis of TiO2 nanorods: formation chemistry, growth mechanism, and tailoring of surface properties for photocatalytic activities

Cited by 75 publications

References 283 publications

Photocatalytic TiO2 nanomaterials as potential antimicrobial and antiviral agents: Scope against blocking the SARS-COV-2 spread

Photocatalytic TiO2 nanomaterials as potential antimicrobial and antiviral agents: Scope against blocking the SARS-COV-2 spread

Physical Investigations of Titanium Dioxide Nanorods Film Prepared by Hydrothermal Technique

Recent advances in ultra-low temperature (sub-zero to 100 °C) synthesis, mechanism and applications of titania (TiO2) nanoparticles

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Product

Resources

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Recent advances in ultra-low temperature (sub-zero to 100 °C) synthesis, mechanism and applications of titania (TiO₂) nanoparticles