Study on adsorption properties of water hyacinth-derived biochar for uranium (VI)

被引：52

作者：

Xu, Zimu ^{[1
,2
]}

Xing, Yexin ^{[1
]}

Ren, Anran ^{[3
]}

Ma, Doudou ^{[1
]}

Li, Yunxia ^{[1
]}

Hu, Shuheng ^{[1
]}

机构：

[1] Hefei Univ Technol, Sch Resources & Environm Engn, Hefei 230009, Anhui, Peoples R China

[2] Chinese Acad Sci, Hefei Inst Phys Sci, Anhui Prov Key Lab Med Phys & Technol, Hefei 230031, Peoples R China

[3] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2020年 / 324卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Water hyacinth; Biochar; Uranium (VI); Adsorption; ZERO-VALENT IRON; AQUEOUS-SOLUTIONS; CHROMIUM(VI) REMOVAL; EICHHORNIA-CRASSIPES; METAL-IONS; SORPTION; BIOSORPTION; EQUILIBRIUM; TEMPERATURE; PYROLYSIS;

D O I：

10.1007/s10967-020-07160-2

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The adsorption capacity of the water hyacinth-derived biochar on U(VI) was investigated in this study. The as-prepared sample was characterized by methods of SEM, XRD, XPS, FT-IR and BET. Functional groups on the biochar surface could undergo complexation with U(VI). Effects of adsorption dose, temperature, contact time, solution pH and ionic strength were studied by static batch experiments. Results show that the adsorption could be better fitted by the pseudo-second-order kinetic equation and Langmuir model. The solution pH has a great impact on the U(VI) adsorption, while the ionic strength exerts no significant effect.

引用

页码：1317 / 1327

页数：11

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