外文题目: Sol-gel derived mesoporous GaAlPO4 glass for heavy metal ion sequestration
作者: He, Jin; Ma, Pengfei; Zhang, Ge; Li, Rihong; Zhang, Long
刊名: RSC Adv.
年: 2016 卷: 6 期: 101 页： 99149--99157
英文关键词:

HEALTH-RISK; STATE NMR; PHOSPHATE; REMOVAL; ADSORPTION; WATER; REMEDIATION; ADSORBENT; POLLUTION; TITANIUM
英文摘要:
Mesoporous phosphate materials with chemical diversity and a high surface area are essential for their practical applications as heavy metal ion adsorbent materials. Herein, novel gallium aluminum phosphate mesoporous glasses are prepared through a simple aqueous sol-gel route free of any surfactant or template. The glass structure and its evolution from the gel to the final glass were monitored using solid-state NMR techniques, providing detailed insight into the reaction mechanism. During the formation of the mesoporous GaAlPO4 glass, the gallium entered into the PO4 tetrahedron via Ga-O-P bonds. The resulting mesoporous glass samples were tested as adsorbents to remove Pb(II) anions from solution and the ternary oxide glasses show high adsorption capacities (>36.63 mg g(-1), that is 0.18 mmol g(-1)). Owing to their integrated features (including their variable compositions, high specific surface area, tunable pore size and shape flexibility) as well as specific acid-base surface properties, such mesoporous gallium aluminum phosphate materials are also expected to have potential either as catalysts or catalyst supports for industrial applications.


文献类型: 期刊论文
正文语种: English
收录类别: SCIEI
DOI: 10.1039/c6ra17766b


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