Preparation of nanosmooth potassium tetratitanate films by sol-gel method

Qing Hua Qian; Yang Bai; Xue Feng Zhou; Chang Liu; Xin Feng; Xiao Hua Lu

Preparation of nanosmooth potassium tetratitanate films by sol-gel method

Qing Hua Qian^*, Yang Bai, Xue Feng Zhou, Chang Liu, Xin Feng, Xiao Hua Lu

^*Corresponding author for this work

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

Abstract

A new nanosmooth potassium tetratitanate film was prepared on glass substrates by a sol-gel method using Ti(n-OC₄H₉)₄ and CH₃COOK as precursors. The surface structure of the film was analyzed by atomic force microscope (AFM). The crystal growth of potassium tetratitanate was characterized by TG and XRD. The photocatalytic decomposition of octadecyltrichlorosilane (OTS) based self-assembled monolayers (SAMs) formed on K₂Ti₄O₉ films was studied by using contact angle analysis. The results show that the films consist of flat particles with the ratio of diameter to height about 11. The root mean square roughness (RMS) of the films measured on an area of 2 μm × 2 μm in AFM images is 4.1 nm. Densely packed OTS-SAMs similar in quality to those on TiO₂ are formed on K₂Ti₄O₉. K₂Ti₄O₉ efficiently decomposes OTS-SAMs under UV irradiation in air.

Original language	English
Pages (from-to)	749-753
Number of pages	5
Journal	Wuji Cailiao Xuebao/Journal of Inorganic Materials
Volume	22
Issue number	4
Publication status	Published - 1 Jul 2007

Keywords

Atomic force microscope
Photocatalysis
Potassium tetratitanate film
Sol-gel process

Cite this

@article{91b37ca5f13c4cc5a19cc0e3cc1491d1,

title = "Preparation of nanosmooth potassium tetratitanate films by sol-gel method",

abstract = "A new nanosmooth potassium tetratitanate film was prepared on glass substrates by a sol-gel method using Ti(n-OC4H9)4 and CH3COOK as precursors. The surface structure of the film was analyzed by atomic force microscope (AFM). The crystal growth of potassium tetratitanate was characterized by TG and XRD. The photocatalytic decomposition of octadecyltrichlorosilane (OTS) based self-assembled monolayers (SAMs) formed on K2Ti4O9 films was studied by using contact angle analysis. The results show that the films consist of flat particles with the ratio of diameter to height about 11. The root mean square roughness (RMS) of the films measured on an area of 2 μm × 2 μm in AFM images is 4.1 nm. Densely packed OTS-SAMs similar in quality to those on TiO2 are formed on K2Ti4O9. K2Ti4O9 efficiently decomposes OTS-SAMs under UV irradiation in air.",

keywords = "Atomic force microscope, Photocatalysis, Potassium tetratitanate film, Sol-gel process",

author = "Qian, {Qing Hua} and Yang Bai and Zhou, {Xue Feng} and Chang Liu and Xin Feng and Lu, {Xiao Hua}",

year = "2007",

month = jul,

day = "1",

language = "English",

volume = "22",

pages = "749--753",

journal = "Wuji Cailiao Xuebao/Journal of Inorganic Materials",

issn = "1000-324X",

publisher = "Kexue Chubaneshe/Science Press",

number = "4",

}

TY - JOUR

T1 - Preparation of nanosmooth potassium tetratitanate films by sol-gel method

AU - Qian, Qing Hua

AU - Bai, Yang

AU - Zhou, Xue Feng

AU - Liu, Chang

AU - Feng, Xin

AU - Lu, Xiao Hua

PY - 2007/7/1

Y1 - 2007/7/1

N2 - A new nanosmooth potassium tetratitanate film was prepared on glass substrates by a sol-gel method using Ti(n-OC4H9)4 and CH3COOK as precursors. The surface structure of the film was analyzed by atomic force microscope (AFM). The crystal growth of potassium tetratitanate was characterized by TG and XRD. The photocatalytic decomposition of octadecyltrichlorosilane (OTS) based self-assembled monolayers (SAMs) formed on K2Ti4O9 films was studied by using contact angle analysis. The results show that the films consist of flat particles with the ratio of diameter to height about 11. The root mean square roughness (RMS) of the films measured on an area of 2 μm × 2 μm in AFM images is 4.1 nm. Densely packed OTS-SAMs similar in quality to those on TiO2 are formed on K2Ti4O9. K2Ti4O9 efficiently decomposes OTS-SAMs under UV irradiation in air.

AB - A new nanosmooth potassium tetratitanate film was prepared on glass substrates by a sol-gel method using Ti(n-OC4H9)4 and CH3COOK as precursors. The surface structure of the film was analyzed by atomic force microscope (AFM). The crystal growth of potassium tetratitanate was characterized by TG and XRD. The photocatalytic decomposition of octadecyltrichlorosilane (OTS) based self-assembled monolayers (SAMs) formed on K2Ti4O9 films was studied by using contact angle analysis. The results show that the films consist of flat particles with the ratio of diameter to height about 11. The root mean square roughness (RMS) of the films measured on an area of 2 μm × 2 μm in AFM images is 4.1 nm. Densely packed OTS-SAMs similar in quality to those on TiO2 are formed on K2Ti4O9. K2Ti4O9 efficiently decomposes OTS-SAMs under UV irradiation in air.

KW - Atomic force microscope

KW - Photocatalysis

KW - Potassium tetratitanate film

KW - Sol-gel process

UR - http://www.scopus.com/inward/record.url?scp=34548482705&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:34548482705

SN - 1000-324X

VL - 22

SP - 749

EP - 753

JO - Wuji Cailiao Xuebao/Journal of Inorganic Materials

JF - Wuji Cailiao Xuebao/Journal of Inorganic Materials

IS - 4

ER -

Preparation of nanosmooth potassium tetratitanate films by sol-gel method

Abstract

Keywords

Other files and links

Fingerprint

Cite this