Green synthesis of TiO2 and its photocatalytic activity

Khade, G. V.; Suwarnkar, M. B.; Gavade, N. L.; Garadkar, K. M.

doi:10.1007/s10854-015-2832-7

Cited by 76 publications

(40 citation statements)

References 25 publications

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“…(21-1275). 31 , 32 The determined characteristics 2θ values and (hkl) planes are 24.43 (101), 39.23 (004), 49.11 (200), 55.41 (105) and 57.12 (211) attributed to purity crystalline form of NPs. 33 In the case of ZnO NPs, all diffraction peaks (100), (002), (101), (110), (103), (112) and (202) are indicated ZnO hexagonal phase by comparison with JCPDS card No.89-7102.…”

Section: Resultsmentioning

confidence: 91%

“…5 , different bands at 3447.16, 2109.80, 1631.31, 1048.67, 773.50, 628.93, 561.33 and 416.07 cm -1 are attributed respectively to O-H (alcohol), -C≡C- (alkyne) and C=C (alkene) stretching bonds. 32 Also, bands at 1048.67, 773.50, 628.93, 561.33 and 416.07 cm -1 are assigned to alkyl halide groups including respectively C-F, C-Cl, C-Cl, C-Br, and C-I. The peaks at 989.98 cm -1 correspond to =C-H bending strong bond.…”

Section: Resultsmentioning

confidence: 97%

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Biosynthesis of TiO2 and ZnO nanoparticles by Halomonas elongata IBRC-M 10214 in different conditions of medium

Taran¹,

Rad²,

Alavi³

2017

129

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Introduction: In the recent years, green synthesis is a novel method without some disadvantages of physical and chemical methods. In this approach, bacteria, archaebacteria, fungi, and plants may be applied without utilizing toxic and expensive materials for metal nanoparticles (MNPs) preparation. Methods: In this study, we used Taguchi method to obtain optimum conditions in titanium dioxide and zinc oxide nanoparticle (NPs) biosynthesis by Halomonas elongata IBRC-M 10214. Design and analysis of Taguchi experiments (an orthogonal assay and analysis of variance [ANOVA]) carried out by the Qualitek-4 software. Effects of TiO(OH)2, incubation temperature, and culturing time for synthesis of TiO2 NPs as well as ZnCl2 concentration, glucose concentration, and incubation temperature for the preparation of ZnO NPs were evaluated as the controllable factors with 3 levels. Characterization of TiO2 and ZnO NPs were determined by UV-Vis spectroscopy, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and dynamic light scattering (DLS) analysis. Also, the antimicrobial properties of these NPs were investigated based on agar diffusion assay of NPs dispersed in batch cultures using Escherichia coli ATCC 25922 and Staphylococcus aureus ATCC 43300 as multidrug-resistant (MDR) bacteria. Results: It was evaluated that TiO2 and ZnO NPs had respectively average diameter sizes of 104.63±27.75 and 18.11±8.93 nm with spherical shapes. In contrast to the TiO2 NPs without antibacterial activity, the ZnO NPs had antibacterial effects at 0.1 and 0.01 M of (ZnCl2). Conclusion: The ZnO NPs have the antibacterial effect that can be operative in the medicinal aspect for fighting against prominent MDR bacteria such as E. coli ATCC 25922 and S. aureus ATCC 43300. In total, this study presents a simple method in the biosynthesis of TiO2 and ZnO NPs with low the expense, eco-friendly, and high productivity properties.

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Section: Resultsmentioning

confidence: 91%

Section: Resultsmentioning

confidence: 97%

Biosynthesis of TiO2 and ZnO nanoparticles by Halomonas elongata IBRC-M 10214 in different conditions of medium

Taran¹,

Rad²,

Alavi³

2017

129

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“…However, all of these methods require expensive and toxic chemicals. In this respect, green methods, which involve simple eco-friendly routes [17][18][19] for synthesizing nanomaterials have several advantages over chemical and physical methods.…”

Section: ------------------------------------------------------------mentioning

confidence: 99%

<i>In vitro</i> cytotoxicity of biosynthesized titanium dioxide nanoparticles in human prostate cancer cell lines

He¹,

Yu²,

Fan³

et al. 2018

Trop. J. Pharm Res

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Purpose: To establish a green method for production of titanium dioxide (TiO2) nanoparticles (NPs) using Cinnamomum tamala (C. tamala) -ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), x-ray photoelectron spectroscopy, dynamic light scattering (DLS), transmission electron microscopy (TEM), selected-area electron diffraction, and energy dispersive x-ray spectroscopy. The in vitro cytotoxicity against D145 cells was determined using a 3-(4, 5-dimethylthiazol-2-yl)-

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“…The synthesis of heterogeneous catalysts is one of the best ways to overcome the agglomeration of MNPs. [16][17][18][19][20] Recently, various research groups reported the green synthesis of MNPs supported on the various supports such as TiO 2 , 21 graphene oxide, 22 Fe 3 O 4 , 23 bentonite 24 , perlite 25 and etc. Among heterogeneous catalysts, MgO has been used widely as an efficient support and catalyst in organic reactions due to good chemical and thermal stability, low cost, high surface area, ease of handling and high catalytic activity reusability.…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of a Cu/MgO nanocomposite by Cassytha filiformis L. extract and investigation of its catalytic activity in the reduction of methylene blue, congo red and nitro compounds in aqueous media

2018

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Green synthesis of TiO2 and its photocatalytic activity

Cited by 76 publications

References 25 publications

Biosynthesis of TiO2 and ZnO nanoparticles by Halomonas elongata IBRC-M 10214 in different conditions of medium

Biosynthesis of TiO2 and ZnO nanoparticles by Halomonas elongata IBRC-M 10214 in different conditions of medium

<i>In vitro</i> cytotoxicity of biosynthesized titanium dioxide nanoparticles in human prostate cancer cell lines

Green synthesis of a Cu/MgO nanocomposite by Cassytha filiformis L. extract and investigation of its catalytic activity in the reduction of methylene blue, congo red and nitro compounds in aqueous media

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