Synthesis of Biomorphic ZnO Derived from Cornhusk and Adsorption Property for Pb2+

被引：0

作者：

Hu X. ^{[1
]}

Li Q. ^{[1
]}

Gao L. ^{[1
]}

Wang X. ^{[1
]}

Song H. ^{[1
]}

Yan L. ^{[1
]}

机构：

[1] School of Environment and Chemical Engineering, Yanshan University, Qinhuangdao

来源：

Cailiao Daobao/Materials Review | 2017年 / 31卷 / 02期

关键词：

Adsorption; Bio-template; Biomorphic ZnO; Cornhusk; Lead ions;

D O I：

10.11896/j.issn.1005-023X.2017.04.006

中图分类号：

学科分类号：

摘要：

Biomorphic porous ZnO was synthesized by using bio-template method with cornhusk as template. The treated cornhusk was soaked in zinc acetate precursor solution for 24 h and dried, then the soaked cornhusk was calcined at 800℃ for 3 h to obtain biomorphic ZnO. Different characterization techniques such as XRD, SEM and TEM were used to investigate the structure of as-prepared samples. The adsorption properties of as-synthesized ZnO for lead ions were also studied. Through an in-situ route, biomorphic porous ZnO with a class roll of leaf structure was synthesized by self-assembly of well-crystallized ZnO grain on cornhusk. Moreover, the as-synthesized biomorphic ZnO exhibited good adsorption property for lead ions, the adsorption capacity of biomorphic ZnO was 49.9 mg/g. The adsorption process can achieve equilibrium in 120 min and the adsorption process can be described with pseudo-second-order model. The adsorption isotherm model accords with the Langmuir isothermal model, the increase of temperature can also improve the adsorption performance of biomorphic ZnO. © 2017, Materials Review Magazine. All right reserved.

引用

页码：21 / 24and46

页数：2425

共 12 条

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