CAS OpenIR
Vibrational Spectral Analysis of Natisite (Na2TiSiO5) and its Structure Evolution in Water and Sulfuric Acid Solutions
Meng, Fancheng1,2; Liu, Yahui1; Wang, Lina1; Chen, Desheng1; Zhao, Hongxin1; Zhen, Yulan1; Chen, Jing3; Qi, Tao1
2021-05-01
Source PublicationMATERIALS
Volume14Issue:9Pages:14
AbstractNatisite (Na2TiSiO5) is a layered sodium titanosilicate containing TiO5 square pyramids. The structure evolution of natisite in water and acid solutions is the basis for its potential applications. With Na2SiO3 as the silicon source, natisite with the shape of the square sheet was selectively prepared from the hydrothermal method with 14.3 mol/L NaOH solution at 240 degrees C. Natisite has 20 Raman active modes and 22 infrared active modes from the first-principles calculations within density functional theory, and the calculated Raman and infrared spectra agree well with the experimental ones. The characteristic Raman peak at 844 cm(-1) is caused by the symmetric stretching of the apical Ti-O bond in the TiO5 unit, assigning to A(1g) and B-2g modes. Natisite remains relatively stable in water with a sodium leaching percentage of lower than 6%. When washing with sulfuric acid solutions, the interlayer spacing of natisite is reduced due to the extensive removal of sodium ions, and an intermediate composed of SiO4 and newly formed TiO6 units may be formed. Moreover, after washing with water and acid solutions, 95.5%, 63.4%, and 35.2% of Na, Si, and Ti in natisite can be leached in total, respectively, resulting in the structural disintegration of natisite.
Keywordnatisite vibration spectroscopy structure evolution sodium ion aqueous solution
DOI10.3390/ma14092259
Language英语
WOS KeywordSODIUM TITANIUM SILICATE ; OXIDE INDUSTRY ; TITANOSILICATE ; TIO2 ; 1ST-PRINCIPLES ; PHOTOCATALYST ; RECOVERY ; TIONITE ; RESIDUE ; STATE
Funding ProjectNational Natural Science Foundation of China[51804289] ; National Natural Science Foundation of China[22078343] ; National Natural Science Foundation of China[21908231] ; National Key Research and Development Program of China[2018YFC1900500] ; National Key Research and Development Program of China[2018YFE0123100] ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences[QYZDJ-SSW-JSC021] ; CAS Interdisciplinary Innovation Team ; Opening Foundation of State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming Uni-versity of Science and Technology[CNMRCUKF1901] ; Special Project for Transfor-mation of Major Technological Achievements in HeBei province[19044012Z] ; Province Key R&D Program of Hebei[20374105D]
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
Funding OrganizationNational Natural Science Foundation of China ; National Key Research and Development Program of China ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; CAS Interdisciplinary Innovation Team ; Opening Foundation of State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming Uni-versity of Science and Technology ; Special Project for Transfor-mation of Major Technological Achievements in HeBei province ; Province Key R&D Program of Hebei
WOS IDWOS:000650633400001
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/48624
Collection中国科学院过程工程研究所
Corresponding AuthorWang, Lina
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Kunming Univ Sci & Technol, State Key Lab Complex Nonferrous Met Resources Cl, Kunming 650093, Yunnan, Peoples R China
3.Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
Recommended Citation
GB/T 7714
Meng, Fancheng,Liu, Yahui,Wang, Lina,et al. Vibrational Spectral Analysis of Natisite (Na2TiSiO5) and its Structure Evolution in Water and Sulfuric Acid Solutions[J]. MATERIALS,2021,14(9):14.
APA Meng, Fancheng.,Liu, Yahui.,Wang, Lina.,Chen, Desheng.,Zhao, Hongxin.,...&Qi, Tao.(2021).Vibrational Spectral Analysis of Natisite (Na2TiSiO5) and its Structure Evolution in Water and Sulfuric Acid Solutions.MATERIALS,14(9),14.
MLA Meng, Fancheng,et al."Vibrational Spectral Analysis of Natisite (Na2TiSiO5) and its Structure Evolution in Water and Sulfuric Acid Solutions".MATERIALS 14.9(2021):14.
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