Synthesisofb-typeStrontiumHydrogenPhosphateNanosheetsandItsImmobilizationofPb2+inAcidicAqueousSolution

被引：1

作者：

FuQiang Zhuang ^{[1
]}

RuiQin Tan ^{[1
]}

WenFeng Shen ^{[2
]}

XianPeng Zhang ^{[2
]}

Wei Xu ^{[2
]}

WeiJie Song ^{[2
]}

机构：

[1] Faculty of Electrical Engineering and Computer Science,Ningbo University

[2] Ningbo Institute of Material Technology and Engineering,Chinese Academy of Sciences

来源：

Acta Metallurgica Sinica(English Letters) | 2015年 / 28卷 / 04期

关键词：

Strontium hydrogen phosphate; Nanosheets; Immobilization; Lead ions; Dissolution/precipitation;

D O I：

暂无

中图分类号：

TQ126.35 [];

学科分类号：

0817 ;

摘要：

Highly crystalline b-type strontium hydrogen phosphate(b-Sr HPO4) nanosheets were prepared by a hydrothermal method and used for the immobilization of lead ions(Pb2+) from acidic aqueous solution.The effects of various parameters on the immobilization process,including solution p H value,contact time,initial ion concentrations,and coexistent competing cations,were studied to optimize the conditions for maximum immobilization.The b-Sr HPO4 nanosheets exhibited a capacity of(1,120 ± 22) mg/g toward Pb2+in acidic solution(p H value is 3.0),and the equilibrium was achieved within 8 min.The competing cations such as Cu2+,Zn2+,Cd2+,and Co2+affected slightly on the selective immobilization of Pb2+.The results revealed that the removal mechanism of Pb2+by the b-Sr HPO4 nanosheets was the dissolution/precipitation process in the acidic solution.

引用

页码：438 / 443

页数：6

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