Impact of growth kinetics on morphology and pore structure of TiO 2 - One-pot synthesis of macroporous TiO 2 microspheres

Ziyi Zhong; Fengxi Chen; Thiam Peng Ang; Yifan Han; Weiqiang Lim; Aharon Gedanken

doi:10.1021/ic052080j

Impact of growth kinetics on morphology and pore structure of TiO ₂ - One-pot synthesis of macroporous TiO ₂ microspheres

Ziyi Zhong^*, Fengxi Chen, Thiam Peng Ang, Yifan Han, Weiqiang Lim, Aharon Gedanken

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

Titanium dioxide was synthesized by the hydrolysis of titanium tetraisopropoxide (TTIP) in the presence of acetic acid, 2-propanol, and organic amines (octylamine, aniline, and isobutylamine). H ₂O was supplied by an esterification reaction between acetic acid and 2-propanol (denoted as H ₂Oe), and/or by intentionally adding it (denoted as H ₂Oa). It was found that the quantity of H ₂Oa plays a crucial role in the morphology and porous structure of the final TiO ₂ product. Without the addition of H ₂Oa, 1D and porous TiO ₂ was synthesized. With the addition of H ₂Oa, and when the H ₂Oa:TiO ₂ molar ratio was in the range of 1:1 to 60:1, macroporous TiO ₂ microspheres possessing a large surface area and high thermal stability were obtained. When the H ₂Oa:TiO ₂ molar ratio exceeded 60:1, porous TiO ₂ with an irregular shape was formed. The variation in the morphology and porous structure is attributed to the manipulation of the growth kinetics by the addition of water.

Original language	English
Pages (from-to)	4619-4625
Number of pages	7
Journal	Inorganic Chemistry
Volume	45
Issue number	12
DOIs	https://doi.org/10.1021/ic052080j
State	Published - 12 Jun 2006
Externally published	Yes

Access to Document

10.1021/ic052080j

Cite this

@article{07e43c31d71648fc8821d1c70958adf0,

title = "Impact of growth kinetics on morphology and pore structure of TiO 2 - One-pot synthesis of macroporous TiO 2 microspheres",

abstract = "Titanium dioxide was synthesized by the hydrolysis of titanium tetraisopropoxide (TTIP) in the presence of acetic acid, 2-propanol, and organic amines (octylamine, aniline, and isobutylamine). H 2O was supplied by an esterification reaction between acetic acid and 2-propanol (denoted as H 2Oe), and/or by intentionally adding it (denoted as H 2Oa). It was found that the quantity of H 2Oa plays a crucial role in the morphology and porous structure of the final TiO 2 product. Without the addition of H 2Oa, 1D and porous TiO 2 was synthesized. With the addition of H 2Oa, and when the H 2Oa:TiO 2 molar ratio was in the range of 1:1 to 60:1, macroporous TiO 2 microspheres possessing a large surface area and high thermal stability were obtained. When the H 2Oa:TiO 2 molar ratio exceeded 60:1, porous TiO 2 with an irregular shape was formed. The variation in the morphology and porous structure is attributed to the manipulation of the growth kinetics by the addition of water.",

author = "Ziyi Zhong and Fengxi Chen and Ang, {Thiam Peng} and Yifan Han and Weiqiang Lim and Aharon Gedanken",

year = "2006",

month = jun,

day = "12",

doi = "10.1021/ic052080j",

language = "英语",

volume = "45",

pages = "4619--4625",

journal = "Inorganic Chemistry",

issn = "0020-1669",

publisher = "American Chemical Society",

number = "12",

}

TY - JOUR

T1 - Impact of growth kinetics on morphology and pore structure of TiO 2 - One-pot synthesis of macroporous TiO 2 microspheres

AU - Zhong, Ziyi

AU - Chen, Fengxi

AU - Ang, Thiam Peng

AU - Han, Yifan

AU - Lim, Weiqiang

AU - Gedanken, Aharon

PY - 2006/6/12

Y1 - 2006/6/12

N2 - Titanium dioxide was synthesized by the hydrolysis of titanium tetraisopropoxide (TTIP) in the presence of acetic acid, 2-propanol, and organic amines (octylamine, aniline, and isobutylamine). H 2O was supplied by an esterification reaction between acetic acid and 2-propanol (denoted as H 2Oe), and/or by intentionally adding it (denoted as H 2Oa). It was found that the quantity of H 2Oa plays a crucial role in the morphology and porous structure of the final TiO 2 product. Without the addition of H 2Oa, 1D and porous TiO 2 was synthesized. With the addition of H 2Oa, and when the H 2Oa:TiO 2 molar ratio was in the range of 1:1 to 60:1, macroporous TiO 2 microspheres possessing a large surface area and high thermal stability were obtained. When the H 2Oa:TiO 2 molar ratio exceeded 60:1, porous TiO 2 with an irregular shape was formed. The variation in the morphology and porous structure is attributed to the manipulation of the growth kinetics by the addition of water.

AB - Titanium dioxide was synthesized by the hydrolysis of titanium tetraisopropoxide (TTIP) in the presence of acetic acid, 2-propanol, and organic amines (octylamine, aniline, and isobutylamine). H 2O was supplied by an esterification reaction between acetic acid and 2-propanol (denoted as H 2Oe), and/or by intentionally adding it (denoted as H 2Oa). It was found that the quantity of H 2Oa plays a crucial role in the morphology and porous structure of the final TiO 2 product. Without the addition of H 2Oa, 1D and porous TiO 2 was synthesized. With the addition of H 2Oa, and when the H 2Oa:TiO 2 molar ratio was in the range of 1:1 to 60:1, macroporous TiO 2 microspheres possessing a large surface area and high thermal stability were obtained. When the H 2Oa:TiO 2 molar ratio exceeded 60:1, porous TiO 2 with an irregular shape was formed. The variation in the morphology and porous structure is attributed to the manipulation of the growth kinetics by the addition of water.

UR - http://www.scopus.com/inward/record.url?scp=33745617392&partnerID=8YFLogxK

U2 - 10.1021/ic052080j

DO - 10.1021/ic052080j

M3 - 文章

C2 - 16749824

AN - SCOPUS:33745617392

SN - 0020-1669

VL - 45

SP - 4619

EP - 4625

JO - Inorganic Chemistry

JF - Inorganic Chemistry

IS - 12

ER -

Impact of growth kinetics on morphology and pore structure of TiO ₂ - One-pot synthesis of macroporous TiO ₂ microspheres

Abstract

Access to Document

Other files and links

Fingerprint

Cite this