Mechanism of synthesis of anatase TiO2 pigment from low concentration of titanyl sulfuric-chloric acid solution under hydrothermal hydrolysis

doi:10.1002/jccs.201900071

	Mechanism of synthesis of anatase TiO2 pigment from low concentration of titanyl sulfuric-chloric acid solution under hydrothermal hydrolysis
	Tian, Ming 1,2; Liu, Yahui 1,2; Wang, Weijing 1,2; Zhao, Wei 1,2; Chen, Desheng 1,2; Wang, Lina 1,2; Zhao, Hongxin 1,2; Meng, Fancheng 1,2; Zhen, Yulan 1,2; Hu, Zongyuan 2
刊名	JOURNAL OF THE CHINESE CHEMICAL SOCIETY
	2019-07-17
页码	11
关键词	anatase TiO2 pigments DFT calculations hydrolysis mechanisms hydrothermal hydrolysis titanyl sulfuric-chloric acid solution
ISSN号	0009-4536
DOI	10.1002/jccs.201900071
英文摘要	In order to investigate the influence of Cl-/SO42- molar ratios and hydrolysis temperature on the hydrolysis process and TiO2 pigment, H2TiO3 was prepared with a low concentration of titanyl sulfuric-chloric acid solution by hydrothermal hydrolysis. Under the optimal hydrolysis conditions, 1.5-2.2 mu m of H2TiO3 samples were achieved. After doping and calcination, anatase TiO2 pigments demonstrated excellent performance: the achromic ability of tinctorial strength (TCS) and blue phase index (SCX) were 1,429 and 4.07, respectively. As hydrolysis was a significant step in the process, the structure was simplified to a periodic structure of Ti[OH](H2O)(3)Cl(SO4) to simulate the cluster structures. Based on experimental results and density functional theory (DFT) calculation, the hydrolysis mechanism was presumed to be a process of anionic (OH-, Cl- and SO42-) competition reaction to explain the formation of anatase-type H2TiO3, and the crystal growth direction of H2TiO3 was also confirmed to be a (OA) and b (OB).
资助项目	National Natural Science Foundation of China[21606241] ; National Natural Science Foundation of China[51774260] ; National Natural Science Foundation of China[21506233] ; National Natural Science Foundation of China[51804289] ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences[QYZDJ-SSW-JSC021] ; National Key R&D Program of China[2018YFC1900501] ; National Key R&D Program of China[2018YFC1900502] ; CAS Interdisciplinary Innovation Team
WOS关键词	TITANIUM-(IV) SULFATE-SOLUTIONS ; DIOXIDE WHITE PIGMENT ; KINETICS ; CRYSTAL
WOS研究方向	Chemistry
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000476186800001
资助机构	National Natural Science Foundation of China ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; National Key R&D Program of China ; CAS Interdisciplinary Innovation Team
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/30446]
专题	中国科学院过程工程研究所
通讯作者	Liu, Yahui
作者单位	1.Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Tian, Ming,Liu, Yahui,Wang, Weijing,et al. Mechanism of synthesis of anatase TiO2 pigment from low concentration of titanyl sulfuric-chloric acid solution under hydrothermal hydrolysis[J]. JOURNAL OF THE CHINESE CHEMICAL SOCIETY,2019:11.
APA	Tian, Ming.,Liu, Yahui.,Wang, Weijing.,Zhao, Wei.,Chen, Desheng.,...&Qi, Tao.(2019).Mechanism of synthesis of anatase TiO2 pigment from low concentration of titanyl sulfuric-chloric acid solution under hydrothermal hydrolysis.JOURNAL OF THE CHINESE CHEMICAL SOCIETY,11.
MLA	Tian, Ming,et al."Mechanism of synthesis of anatase TiO2 pigment from low concentration of titanyl sulfuric-chloric acid solution under hydrothermal hydrolysis".JOURNAL OF THE CHINESE CHEMICAL SOCIETY (2019):11.