Sol-gel synthesis, texture and catalytic activity of titania-silica sorbents

被引：2

作者：

Kouznetsova, T. F. ^{[1
]}

Sidorenko, A. Yu ^{[3
]}

Ivanets, A. I. ^{[1
]}

Ignat, M. ^{[2
]}

Sauka, Yu D. ^{[1
]}

Samoila, P. ^{[2
]}

机构：

[1] Inst Gen & Inorgan Chem, State Sci Inst, 9 Surganov St, Minsk 220072, BELARUS

[2] Alexandru Ioan Cuza Univ, 11 Carol I Bvd, Iasi 700506, Romania

[3] Inst Chem New Mat, State Sci Inst, 36 Fr Skaryna St, Minsk 220141, BELARUS

来源：

SN APPLIED SCIENCES | 2019年 / 1卷 / 12期

关键词：

Sol-gel; Titania-silica; MCM-41; Mesopore; Gas adsorption; Isomerization of alpha-pinene epoxide; ALPHA-PINENE OXIDE; ISOMERIZATION; ACID; FINE; ADSORPTION; CHEMICALS; EPOXIDE;

D O I：

10.1007/s42452-019-1781-9

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Sol-gel synthesis of mesoporous titania-silicas with the structure related to Type MCM-41 is carried out. The method of nitrogen adsorption has established influence of fluoride-anion on the adsorptive and catalytic properties of titania-silica. The pore structure in titania-silica is in the form of an hexagonal array of uniform tubular channels. Asymptotic increase in a specific surface area of titania-silica catalyst with growth of F/Si ratio is shown. Both silicas and titano-silicas showed catalytic activity in the reaction of isomerization of a-pinene epoxide. The largest activity (100% conversion) and selectivity for campholenic aldehyde (57%) was shown by titanosilicate synthesized at Ti/Si = 25/75 and F/Si = 0.4.

引用

页数：11

共 50 条

[1] Sol–gel synthesis, texture and catalytic activity of titania–silica sorbents
T. F. Kouznetsova
A. Yu. Sidorenko
A. I. Ivanets
M. Ignat
Yu. D. Sauka
P. Samoila
SN Applied Sciences, 2019, 1
[2] Sol-gel synthesis of titania-silica photocatalyst for cyanide photodegradation
Ismail, AA
Ibrahim, IA
Ahmed, MS
Mohamed, RM
El-Shall, H
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2004, 163 (03) : 445 - 451
[3] Sol-gel titania and titania-silica mixed oxides photocatalysts
Van Grieken R.
Aguado J.
López-Muñoz M.J.
Marugán J.
Solid State Phenomena, 2010, 162 : 221 - 238
[4] Comparative study of sol-gel-hydrothermal and sol-gel synthesis of titania-silica composite nanoparticles
Li, ZJ
Hou, B
Xu, Y
Wu, D
Sun, YH
Hu, W
Deng, F
JOURNAL OF SOLID STATE CHEMISTRY, 2005, 178 (05) : 1395 - 1405
[5] Rapid synthesis of titania-silica nanoparticles photocatalyst by a modified sol-gel method for cyanide degradation and heavy metals removal
Harraz, Farid A.
Abdel-Salam, Omar E.
Mostafa, Ahlam A.
Mohamed, Reda M.
Hanafy, M.
JOURNAL OF ALLOYS AND COMPOUNDS, 2013, 551 : 1 - 7
[6] Sol-gel route to synthesize titania-silica nano precursors for photoactive particulates and coatings
Smitha, V. S.
Manjumol, K. A.
Baiju, K. V.
Ghosh, Swapankumar
Perumal, P.
Warrier, K. G. K.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 2010, 54 (02) : 203 - 211
[7] Photocatalytic degradation of methanol on titania and titania-silica aerogels prepared by non-alkoxide sol-gel route
Kim, Won-Il
Suh, Dong Jin
Park, Tae-Jin
Hong, In-Kwon
TOPICS IN CATALYSIS, 2007, 44 (04) : 499 - 505
[8] Silica nanoparticles doped by cobalt(II) sulfosubstituted phthalocyanines: Sol-gel synthesis and catalytic activity
Voronina, A. A.
Tarasyuk, I. A.
Marfin, Yu. S.
Vashurin, A. S.
Rumyantsev, E. V.
Pukhovskaya, S. G.
JOURNAL OF NON-CRYSTALLINE SOLIDS, 2014, 406 : 5 - 10
[9] Biodiesel production by sulfated mesoporous titania-silica catalysts synthesized by the sol-gel process from less expensive precursors
Shao, Godlisten N.
Sheikh, Rizwan
Hilonga, Askwar
Lee, Jae Eun
Park, Yeung-Ho
Kim, Hee Taik
CHEMICAL ENGINEERING JOURNAL, 2013, 215 : 600 - 607
[10] Sol-gel synthesis of nanostructured titania-silica mesoporous membranes with photo-degradation and physical separation capacities for water purification
Tajer-Kajinebaf, Vahideh
Sarpoolaky, Hossein
Mohammadi, Toraj
CERAMICS INTERNATIONAL, 2014, 40 (01) : 1747 - 1757

← 1 2 3 4 5 →