Solvothermal synthesis and visible light absorption of anatase TiO2

Zhao, Jing; Xing, Weiqiang; Li, Yang; Lu, Kathy

doi:10.1016/j.matlet.2015.01.049

Cited by 19 publications

(9 citation statements)

References 12 publications

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“…They explained that the photocatalyst prepared at 180 o C exhibited the highest degradation efficiency of methyl orange (MO) up to 95% within 120 min of UV irradiation, as depicted in Table 1. [33] Wu et al and co-authors have reported the production of carbon-doped TiO 2 powder by calcination assisted solvothermal method that shows the photodegradation of MO up to 98% within 120 min of visible light irradiation. [34] Thapa et al synthesized anatase TiO 2 nanoparticles via hydrothermal route and further used them for detoxification of MO within 25 min under UV irradiation.…”

Section: Introductionmentioning

confidence: 99%

Solvothermal Synthesis of Anatase TiO2 for the Detoxification of Methyl Orange Dye with Improved Photodegradation Efficiency

Rajput¹,

Jamble²,

Kale³

2021

Eng. Sci.

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TiO 2 nanomaterials are one of the most significant nanomaterials among the various metal oxide semiconductors family. The TiO 2 nanomaterials exhibit good chemical and biological stability, nontoxicity, high degradation efficiency and good permeability. Hence TiO 2 nanomaterials are used for the photodegradation of organic pollutants, toxic dyes and other forms of environmental contaminants. In this work, the anatase TiO 2 nanomaterials were efficiently synthesized via a solvothermal method, with crystallite sizes ranging from 6.8-7.1 nm. The morphological observations revealed that various shapes and sizes of microparticles were formed by the agglomeration of nanoparticles. The energy-dispersive X-ray analysis confirmed that the titanium-oxygen stoichiometric ratio was approximately 1:2. The energy band gap of TiO 2 nanomaterials was in the range of 3.02-3.12 eV. The photoluminescence study showed that anatase TiO 2 nanomaterial (T2) is ascribed to the selftrapped excitons, surface states and oxygen vacancies. The T2 sample has shown red-shifted with a high surface area (183.17 m 2 /g) and large pore size (4.58 nm), which helps to achieve photocatalytic degradation of methyl orange up to 90% within 30 min of mercury light irradiation. The scavenger test indicated that h + radicals are important reactive species in the photodegradation process.

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Section: Introductionmentioning

confidence: 99%

Solvothermal Synthesis of Anatase TiO2 for the Detoxification of Methyl Orange Dye with Improved Photodegradation Efficiency

Rajput¹,

Jamble²,

Kale³

2021

Eng. Sci.

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“…Figure 4 and Table 1 show the XPS spectra and the elemental content of the composite. The survey spectrum displayed that the surface elements not only contained C, N, and O but also contained Ti, which can be confirmed from the elemental content [31], respectively, which is also supported by the peak at 530.9 eV in the O 1s spec-trum, corresponding to TiÀO [32]. The species suggest that the TiO 2 nanoparticles were anchored on the HMX surfaces by bidentate chelating bonds in the dopamine solution [33] (Scheme 1).…”

Section: Structures Of the Hmx@pda@tio 2 Compositementioning

confidence: 65%

Thermal Decomposition Enhancement of HMX by Bonding with TiO₂ Nanoparticles

Zhu

Xiao

Xie

et al. 2019

Propellants Explo Pyrotec

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The appropriate structure and properties of a composite material, including the morphology, particle size, and bond strength, are very important for its performance and practical applications. The energetic material HMX (C4H8N8O8, cyclotetramethylenetetranitramine) is typically mixed with nanocatalysts to improve its thermal decomposition, which is advantageous for its detonation performance in practical applications. Inspired by the bioadhesion of mussels, a HMX@PDA@TiO2 (HMX first coated with PDA film and second coated with TiO2 nanoparticles) composite was developed in this study to greatly advance the thermal decomposition temperatures. A simple stirring process was used to prepare the composite from HMX and TiO2 nanoparticles under dopamine solutions with different pH values. Nanocatalyst TiO2 nanoparticles were anchored on the surface of HMX by reacting with the dopamine and polydopamine coatings. Compared with other reference samples, the thermal behavior of the obtained composite showed that the starting decomposition temperature was lower, at approximately 60 °C, and that the decomposition peak decreased by 35 °C, indicating that the composite properties should have great effects on the thermal performance of the materials. The findings offer a valuable composite preparation method to enhance the thermal behavior and the effect of the catalyst on the composite via bonding effects.

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“…8(b)). Both phenomena can be attributed to the generation of Ti 3+ by UV light illumination [22,35]. The results of the XPS peak differentiation imitating analysis of State A and State B are shown in Fig.…”

Section: Xps Analysismentioning

confidence: 91%

A novel photo-thermochemical cycle for the dissociation of CO 2 using solar energy

Zhang

Chen

et al. 2015

Applied Energy

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Solvothermal synthesis and visible light absorption of anatase TiO2

Cited by 19 publications

References 12 publications

Solvothermal Synthesis of Anatase TiO2 for the Detoxification of Methyl Orange Dye with Improved Photodegradation Efficiency

Solvothermal Synthesis of Anatase TiO2 for the Detoxification of Methyl Orange Dye with Improved Photodegradation Efficiency

Thermal Decomposition Enhancement of HMX by Bonding with TiO₂ Nanoparticles

A novel photo-thermochemical cycle for the dissociation of CO 2 using solar energy

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Solvothermal synthesis and visible light absorption of anatase TiO2

Cited by 19 publications

References 12 publications

Solvothermal Synthesis of Anatase TiO2 for the Detoxification of Methyl Orange Dye with Improved Photodegradation Efficiency

Solvothermal Synthesis of Anatase TiO2 for the Detoxification of Methyl Orange Dye with Improved Photodegradation Efficiency

Thermal Decomposition Enhancement of HMX by Bonding with TiO2 Nanoparticles

A novel photo-thermochemical cycle for the dissociation of CO 2 using solar energy

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Product

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Thermal Decomposition Enhancement of HMX by Bonding with TiO₂ Nanoparticles