Significance of Indian peat moss for the removal of Ni(II) ions from aqueous solution

被引：8

作者：

Janaki, V. ^{[1
]}

Kamala-Kannan, S. ^{[2
]}

Shanthi, K. ^{[3
]}

机构：

[1] Paavai Engn Coll, Dept Chem, Namakkal 637018, Tamil Nadu, India

[2] Chonbuk Natl Univ, Coll Environm & Bioresource Sci, Adv Inst Environm & Biosci, Div Biotechnol, Iksan 570752, South Korea

[3] PSG Coll Arts & Sci, Dept Environm Sci, Coimbatore 641014, Tamil Nadu, India

来源：

ENVIRONMENTAL EARTH SCIENCES | 2015年 / 74卷 / 06期

关键词：

Bryophyte; Adsorption; Heavy metals; Ni(II); Sphagnum peat moss; HEAVY-METALS; SPHAGNUM PEAT; PULICAT LAKE; ADSORPTION; WATER; KINETICS; PB; CD; NI; CU;

D O I：

10.1007/s12665-015-4547-8

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The aim of this study was to assess the potential of Indian Sphagnum peat moss, a widespread terrestrial bryophyte, for the uptake of Ni(II) ions from aqueous solution. Experiments were carried out as a function of contact time, pH, adsorbent dosage, and initial concentration of Ni(II). Batch experiment results showed that peat moss removed 99.5 % of Ni(II) from aqueous solution at pH 6. Freundlich model showed satisfactory fit to the equilibrium adsorption data of Sphagnum peat moss. The adsorption kinetics followed pseudo-second-order kinetic model, which demonstrates that chemisorption may be the rate controlling step in the adsorption of Ni(II) onto the Sphagnum peat moss. The interactions between the peat moss and Ni(II) were further studied by Fourier transform infrared spectroscopy.

引用

页码：5351 / 5357

页数：7

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