2015
DOI: 10.1016/j.apcatb.2015.01.045
|View full text |Cite
|
Sign up to set email alerts
|

Effect of surface modification with H2S and NH3 on TiO2 for adsorption and photocatalytic degradation of gaseous toluene

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1
1

Citation Types

0
27
0
1

Year Published

2015
2015
2021
2021

Publication Types

Select...
7
1

Relationship

1
7

Authors

Journals

citations
Cited by 45 publications
(28 citation statements)
references
References 68 publications
0
27
0
1
Order By: Relevance
“…In S-containing samples S(VI) ions can substitute Ti(IV) and form the Ti-O-S bonds, which allows us to modify the electronic structure of TiO 2 by displacing the electronic sites from O to S [31,32]. The oxygen atom becomes a center that hinders the recombination of the electron-hole pairs under irradiation [33].…”
Section: Resultsmentioning
confidence: 99%
“…In S-containing samples S(VI) ions can substitute Ti(IV) and form the Ti-O-S bonds, which allows us to modify the electronic structure of TiO 2 by displacing the electronic sites from O to S [31,32]. The oxygen atom becomes a center that hinders the recombination of the electron-hole pairs under irradiation [33].…”
Section: Resultsmentioning
confidence: 99%
“…This indicates that, under dark conditions, the toluene was removed by the 6% V-TiO 2 /PU only via adsorption. When the V-TiO 2 /PU material was exposed to water vapor, its surface could be hydroxylated by reactions between water molecular and cations, such as Ti 3+ , Ti 4+ , V 4+ and V 5+ , existing on V-TiO 2 /PU surface [39]. The hydroxylation led to formation of hydroxyl groups existing on V-TiO 2 /PU surface via Ti OH or V OH bonds [39,40].…”
Section: Toluene Removal Mechanismmentioning
confidence: 98%
“…The hydroxylation led to formation of hydroxyl groups existing on V-TiO 2 /PU surface via Ti OH or V OH bonds [39,40]. Then, the hydroxyl groups could bond with -electron of aromatic ring of toluene to adsorb toluene on the V-TiO 2 /PU surface [39]. The adsorption could be due to the direct electrostatic interaction between the aromatic ring of toluene and cations (Ti 3+ , Ti 4+ , V 4+ and V 5+ ) on the surface of the V-TiO 2 /PU [41].…”
Section: Toluene Removal Mechanismmentioning
confidence: 99%
See 1 more Smart Citation
“…28c) revelou a presença de um nível energético mais intenso em 168,9 eV e um segundo pico em 169,8 eV. De acordo com estudos anteriores 111,116,142 , os valores correspondem, respectivamente, aos picos S 2p 3/2 e S 2p 1/2 , e podem ser atribuídos à formação dos grupos sulfato SO 4 2na superfície do filme 137,143 Filmes de TiO 2 são compostos de nanopartículas ou agregados. De acordo com estudos abordados na literatura, a inserção do enxofre na estrutura cristalina da anatase, a partir do processo de dopagem, pode efetivamente reduzir a agregação de nanopartículas de TiO 2 devido à diferença de raios iônicos entre os cátions, o que permite tornar a superfície do catalisador uniforme, aumentar sua área superficial e, consequentemente, sua eficiência fotocatalítica 76,155 .…”
Section: Ensaios De Durabilidade Do Catalisadorunclassified