CAS OpenIR
Mechanism of synthesis of anatase TiO2 pigment from low concentration of titanyl sulfuric-chloric acid solution under hydrothermal hydrolysis
Tian, Ming1,2; Liu, Yahui1,2; Wang, Weijing1,2; Zhao, Wei1,2; Chen, Desheng1,2; Wang, Lina1,2; Zhao, Hongxin1,2; Meng, Fancheng1,2; Zhen, Yulan1,2; Hu, Zongyuan2; Qi, Tao1,2
2019-07-17
Source PublicationJOURNAL OF THE CHINESE CHEMICAL SOCIETY
ISSN0009-4536
Pages11
AbstractIn 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).
Keywordanatase TiO2 pigments DFT calculations hydrolysis mechanisms hydrothermal hydrolysis titanyl sulfuric-chloric acid solution
DOI10.1002/jccs.201900071
Language英语
WOS KeywordTITANIUM-(IV) SULFATE-SOLUTIONS ; DIOXIDE WHITE PIGMENT ; KINETICS ; CRYSTAL
Funding ProjectNational 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 Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
Funding OrganizationNational 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
WOS IDWOS:000476186800001
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/30447
Collection中国科学院过程工程研究所
Corresponding AuthorLiu, Yahui
Affiliation1.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
Recommended Citation
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.
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