Green synthesis of reduced graphene oxide supported TiO2/Co3O4 nanocomposite for photocatalytic degradation of methylene blue and crystal violet

Ranjith, R.; Renganathan, Vengudusamy; Chen, Shen‐Ming; Selvan, N. Senthamizh; Rajam, P. Shameela

doi:10.1016/j.ceramint.2019.03.219

Cited by 119 publications

(27 citation statements)

References 43 publications

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“… S. No Photocatalyst Time Ref. AuNPs 8 min [ 71 ] AgNPs 45 min [ 72 ] SnO 2 NPs 70 min [ 73 ] rGO/TiO 2 /Co 3 O 4 NPs 120 min [ 74 ] Sb-ZnO NPs 210 min [ 75 ] CuNPs 120 min This work …”

Section: Resultsmentioning

confidence: 99%

Green synthesis of copper nanoparticles using Celastrus paniculatus Willd. leaf extract and their photocatalytic and antifungal properties

Mali

Dhaka

Githala

et al. 2020

Biotechnology Reports

205

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“… S. No Photocatalyst Time Ref. AuNPs 8 min [ 71 ] AgNPs 45 min [ 72 ] SnO 2 NPs 70 min [ 73 ] rGO/TiO 2 /Co 3 O 4 NPs 120 min [ 74 ] Sb-ZnO NPs 210 min [ 75 ] CuNPs 120 min This work …”

Section: Resultsmentioning

confidence: 99%

Green synthesis of copper nanoparticles using Celastrus paniculatus Willd. leaf extract and their photocatalytic and antifungal properties

Mali

Dhaka

Githala

et al. 2020

Biotechnology Reports

205

View full text Add to dashboard Cite

show abstract

“…9) revealed that addition of GO in the TiO 2 /Co 3 O 4 nanocomposite reduced the crystalline size and enhanced the charge carrier mobility as well as photochemical performance of the composite. 34…”

Section: Bio-fabrication Of Tio 2 Npsmentioning

confidence: 99%

Bio-fabrication of TiO2 Nanomaterials and Their Applications in Electronics Devices

Chowdhury

Saini

Roy

2021

J. Electron. Mater.

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Nano-biotechnology deals with the role of biological species in the field of nanotechnology and has gained significant attention in the last few decades. Nano-sized materials have superior physical, chemical, optical, electrical and mechanical properties in comparison with the bulk materials. A number of techniques have been employed so far to synthesize nano-structured materials, and among these, bio-inspired methods are found to be economically viable and environmentally sustainable. Titanium dioxide (TiO 2 ) is one of the most abundant and nontoxic transition metal oxides with high thermal stability, good oxidation and corrosion resistance, good hydrophobicity and non-wettability. All these properties along with a wide band gap make TiO 2 an important material for various applications in the fields of solar cells, sensors, batteries, and supercapacitors. In this review work, a comprehensive study has been carried out on the synthesis of TiO 2 nanoparticles (NPs) using different biological extracts and applications of TiO 2 NPs in the design and development of various electronic devices. KeywordsTiO 2 NPs • bio-fabrication • solar cells • lithium-ion batteries • supercapacitor • sensor * Jagannath Roy

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“…Besides of taking advantage of the dye-sensitizing of TiO 2 , and in order to further extend the applications and usability of TiO 2 catalysts, the support of the photocatalytic material have become an interesting venture for catalysis research. Current developments for the use TiO 2 are focused on the support of the photocatalyst on a wide variety of materials (Ansón-Casaos et al, 2013;Ranjith et al, 2019) which may set the basis for the implementation of applied waste-water treatment solutions. (Wang et al, 2018), in a degradation process mediated by the formation of a direct Zscheme heterojunction structure formed between ZnO and TiO 2 , with hydroxyl and superoxide anion radical playin relevant roles in the phtocatalytic process.…”

Section: Vbmentioning

confidence: 99%

“…TiO 2 supported in activated carbon has also been used for the photocatalytic decomposition of the micotoxin aflatoxin B1 (Sun et al, 2019), a carcinogen agent that can be found in vegetal and animal feedstock, with good performance of the photocatalyst when UV-Vis light is used for irradiation, with enhanced photodegradation of the supported material when compared with the bare photocatalysts. Similarly, hybrid TiO 2 catalysts supported on reduced graphene oxide (Ranjith et al, 2019) displayed good performance in the oxidative degradation of organic dyes (methylene blue and crystal violet) by irradiation with visible light, with the dye degradation taking place through electron-hole separation.…”

Section: Vbmentioning

confidence: 99%

Photocatalytic Degradation of Aqueous Rhodamine 6G Using Supported TiO2 Catalysts. A Model for the Removal of Organic Contaminants From Aqueous Samples

et al. 2020

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As a model for the removal of complex organic contaminants from industrial water effluents, the heterogeneous photocatalytic degradation of Rhodamin 6G was studied using TiO 2-derived catalysts, incorporated in water as suspension as well as supported in raschig rings. UV and Visible light were tested for the photo-degradation process. TiO 2 catalysts were synthesized following acid synthesis methodology and compared against commercial TiO 2 catalyst samples (Degussa P25 and Anatase). The bandgap (E g) of the TiO 2 catalysts was determined, were values of 2.97 and 2.98 eV were obtained for the material obtained using acid and basic conditions, respectively, and 3.02 eV for Degussa P25 and 3.18 eV for anatase commercial TiO 2 samples. Raschig ringssupported TiO 2 catalysts display a good photocatalytic performance when compared to equivalent amounts of TiO 2 in aqueous suspension, even though a large surface area of TiO 2 material is lost upon support. This is particularly evident by taking into account that the characteristics (XRD, RD, Eg) and observed photodegradative performance of the synthesized catalysts are in good agreement with the commercial TiO 2 samples, and that the RH6G photodegradation differences observed with the light sources considered are minimal in the presence of TiO 2 catalysts. The presence of additives induce changes in the kinetics and efficiency of the TiO 2-catalyzed photodegradation of Rh6G, particularly when white light is used in the process, pointing toward a complex phenomenon, however the stability of the supported photocatalytic systems is acceptable in the presence of the studied additives. In line with this, the magnitude of the chemical oxygen demand, indicates that, besides the different complex photophysical processes taking place, the endproducts of the considered photocatalytic systems appears to be similar.

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Green synthesis of reduced graphene oxide supported TiO2/Co3O4 nanocomposite for photocatalytic degradation of methylene blue and crystal violet

Cited by 119 publications

References 43 publications

Green synthesis of copper nanoparticles using Celastrus paniculatus Willd. leaf extract and their photocatalytic and antifungal properties

Green synthesis of copper nanoparticles using Celastrus paniculatus Willd. leaf extract and their photocatalytic and antifungal properties

Bio-fabrication of TiO2 Nanomaterials and Their Applications in Electronics Devices

Photocatalytic Degradation of Aqueous Rhodamine 6G Using Supported TiO2 Catalysts. A Model for the Removal of Organic Contaminants From Aqueous Samples

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