Effect of Anatase/Rutile TiO2 Phase Composition on Arsenic Adsorption

被引：15

作者：

Gupta, K. K. ^{[1
]}

Singh, N. L. ^{[1
]}

Pandey, A. ^{[1
]}

Shukla, S. K. ^{[1
]}

Upadayay, S. N. ^{[1
]}

Mishra, V. ^{[1
]}

Srivastava, P. ^{[2
]}

Lalla, N. P. ^{[3
]}

Mishra, P. K. ^{[1
]}

机构：

[1] Banaras Hindu Univ, Inst Technol, Dept Chem Engn & Technol, Varanasi 221005, Uttar Pradesh, India

[2] Banaras Hindu Univ, Inst Technol, Sch Biochem Engn, Varanasi 221005, Uttar Pradesh, India

[3] UGC DAE Consortium Sci Res, Indore, Madhya Pradesh, India

来源：

JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY | 2013年 / 34卷 / 08期

关键词：

Adsorption; anatase; arsenic; crystallinity; nano TiO2; rutile; surface area; TITANIUM-DIOXIDE; SURFACE-AREA; PHOTOCATALYTIC DEGRADATION; THIN-FILMS; NANOPARTICLES; RAMAN; REMOVAL; SIZE; DECOMPOSITION; CRYSTALLITE;

D O I：

10.1080/01932691.2012.735937

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Nano TiO2 particles with different phase composition were synthesised using sol-gel method. Two different solvent were used for gelation. Effect of gelation temperature and to time on anatase/rutile phase formation had been studied. Particles crystallinity, crystal size, surface area, pore size had been calculated by x-ray diffraction, Raman spectroscopy, Brunauer-Emmett-Teller (BET) surface area) theory, and transmission electron microscopy analysis. How change in crystal size, surface area, pore size with respect to phase change also has been studied. Arsenate and arsenite removal by TiO2 particles of different phase compositions had been investigated by atomic absorption spectroscopy. Some parameters such as the contact time and the pH of the solution, which could affect the magnitude of adsorption, were examined. Sorption data have been interpreted in terms of the Freundlich and Langmuir equations. [Supplemental materials are available for this article. Go to the publisher's online edition of the Journal of Dispersion Science and Technology to view the free supplemental file.]

引用

页码：1043 / 1052

页数：10

共 56 条

[1] Characterization of the hydrothermally synthesized nano-TiO2 crystallite and the photocatalytic degradation of Rhodamine B [J].