A new solvothermal route to efficient titania photocatalyst

Здравков, А. В.; Kudryashova, Yu. S.; Kanaev, Andreï; Povolotskiy, Alexey V.; Volkova, A. V.; Golikova, E. V.; Khimich, N. N.

doi:10.1016/j.matchemphys.2015.04.008

Cited by 8 publications

(4 citation statements)

References 54 publications

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“…The reaction between alkoxy silanes and acetic acid leads to the formation of silica esters (CH 3 COOSi‐) via the exchange reaction of the acetic acid with the alkoxy group, and the reaction between this silica ester and ethanol yields Si‐OH groups and ethylacetate CH 3 COOC 2 H 5 . The esterification reactions between titanium alkoxides and carboxylic acids allows the synthesis of titanium oxo‐isopropoxo clusters as well as titania nanoparticles or nanorods . Long chain carboxylic acids like oleic acid not only act as reactant for esterification, but also as capping and structure directing agent .…”

Section: Chemical Formation Mechanismsmentioning

confidence: 99%

“…[196,197] The esterificationr eactions between titaniuma lkoxides andc arboxylic acids allows the synthesis of titanium oxo-isopropoxoc lusters [198] as well as titania nanoparticles or nanorods. [184,193,[199][200][201][202] Long chain carboxylic acids like oleic acid not only act as reactant for esterification, but also as capping and structure directing agent. [193,200] Esterification reactions were also appliedf or atomic layer deposition( ALD) of titania from titaniumi sopropoxide and acetic acid.…”

Section: Ester and Amide Eliminationsmentioning

confidence: 99%

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Mechanistic Aspects in the Formation, Growth and Surface Functionalization of Metal Oxide Nanoparticles in Organic Solvents

Deshmukh

Niederberger

2017

Chemistry A European J

106

112

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The synthesis of metal oxide nanoparticles in organic solvents, so-called nonaqueous (or nonhydrolytic) processes represent powerful alternatives to aqueous approaches and have become an independent research field. 10 Years ago, when we published our first review on organic reaction pathways in nonaqueous sol-gel approaches, the number of examples was relatively limited. Nowadays, it is almost impossible to provide an exhaustive overview. Here we review the development of the last few years, without neglecting pioneering examples, which help to follow the historical development. The importance of a profound understanding of mechanistic aspects of nanoparticle crystallization and formation mechanisms can't be overestimated, when it comes to the design of rational synthesis concepts under minimization of trial-and-error experiments. The main reason for the progress in mechanistic understanding lies in the availability of characterization tools that make it possible to monitor chemical reactions from the dissolution of the precursor to the nucleation and growth of the nanoparticles, by ex situ methods involving sampling after different reaction times, but more and more also by in situ studies. After a short introduction to experimental aspects of nonaqueous sol-gel routes to metal oxide nanoparticles, we provide an overview of the main and basic organic reaction pathways in these approaches. Afterwards, we summarize the main characterization methods to study formation mechanisms, and then we discuss in great depth the chemical formation mechanisms of many different types of metal oxide nanoparticles. The review concludes with a paragraph on selected crystallization mechanisms reported for nonaqueous systems and a few illustrative examples of nonaqueous sol-gel concepts applied to surface chemistry.

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Section: Chemical Formation Mechanismsmentioning

confidence: 99%

Section: Ester and Amide Eliminationsmentioning

confidence: 99%

Mechanistic Aspects in the Formation, Growth and Surface Functionalization of Metal Oxide Nanoparticles in Organic Solvents

Deshmukh

Niederberger

2017

Chemistry A European J

106

112

View full text Add to dashboard Cite

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“…Since a number of organic solvents can be chosen in the solvothermal process which has high boiling points. In the solvothermal process temperature can be elevated much higher than that in the hydrothermal method [7,41]. In this method we have superior control for the size and shape distributions and the crystallinity of the TiO 2 nanoparticles.…”

Section: Solvothermal Methodsmentioning

confidence: 99%

“…In this method we have superior control for the size and shape distributions and the crystallinity of the TiO 2 nanoparticles. This is the versatile method for the synthesis of a variety of nanoparticles with narrow size distribution and dispersity [7,[41][42]. It is used for synthesis of nano size metals, semiconductors, ceramics, and polymers by using solvent under moderate to high pressure.…”

Section: Solvothermal Methodsmentioning

confidence: 99%

Different Methods Used for the Synthesis of TiO2 Based Nanomaterials: A Review

Kumar¹

2018

NANO

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Titanium dioxide is a widely accepted photocatalyst due to its high oxidation efficiency, non-toxicity, high photostability, chemical inertness and environmentally friendly nature. There are several number of attempt have been made to synthesize TiO 2 nanomaterials with different methods. In this paper we have to show the effect of synthesis methods and their surface morphology with temperature. The different methods are used for the synthesis of different Titania based nanomaterials. These methods are sol-gel method, sol method, electrodeposition method, micelle and reverse micelle methods, direct oxidation, chemical vapour deposition method, hydrothermal method, solvothermal method, Ultrasonication methods and microwave method. In this paper, we are summarizing the synthesis methods, morphology of Titania and crystal structure of the TiO 2 nanomaterials. We are also showing the different nanostructures of TiO 2 materials.

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