MECHANISTIC INVESTIGATION OF COPPER SORPTION ONTO GAMMA-AL2O3 USING THE RELAXATION TECHNIQUE

被引：6

作者：

CHANG, KS

LIN, CF

LEE, DY

LO, SL

机构：

[1] NATL TAIWAN UNIV,GRAD INST ENVIRONM ENGN,TAIPEI 106,TAIWAN

[2] NATL TAIWAN UNIV,DEPT AGR CHEM,TAIPEI 106,TAIWAN

来源：

CHEMOSPHERE | 1993年 / 27卷 / 08期

关键词：

D O I：

10.1016/0045-6535(93)90233-U

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Mechanistic information of Cu(II) sorption onto gamma-Al2O3 was investigated using triple layer model (TLM) and the pressure-jump technique. The mechanism of Cu(II) sorption was interpreted as the reaction of Cu2+ with deprotonated surface hydroxyl group on gamma-Al2O3. The formation constant of Cu2+ With deprotonated reacting site determined from kinetic results (log K(int) = 9.71 L mole-1) was observed here to be in excellent agreement with that simulated from TLM and sorption data (log K(int) = 9.59 L mole-1) quantitatively, verifying the proposed reaction mechanism.

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页码：1397 / 1407

页数：11

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