聚间苯二胺对硫酸根离子的吸附及其机理（英文）
Saved in:
| Published in | 中国有色金属学报：英文版 no. 1; pp. 243 - 252 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
2013
|
| Subjects | |
| Online Access | Get full text |
Cover
Loading…
| Bibliography: | 43-1239/TG Sulfate adsorption by poly（m-phenylenediamine）s（PmPDs） with various oxidation states synthesized through chemically oxidative polymerization was investigated.Series of sorption experiments were conducted,and the adsorption mechanism and the relationship between oxidation state and adsorption performance were studied with the characterization of Fourier transform infrared spectroscopy（FTIR）,X-ray photoelectron spectroscopy（XPS）,pH tracking and energy calculation.The results show that the adsorption performance in acidic solution is improved with the decrease of oxidation state of poly（m-phenylenediamine）（PmPD）.The rate constant is as high as 425.5 mg/（g·min） in the short equilibrium time of 30 min.The estimated highest adsorptivity of sulfate ions is 95.1%.According to the Langmuir equation,the adsorbance is 108.5 mg/g.The sulfate desorption efficiency is about 95% and the accumulative adsorbance is up to 487.95 mg/g in 5 cycles. Pei-lun SANG,Yun-yan WANG,Li-yuan Z HANG,Li-yuan CHAI,Hai-ying WANG School of Metallurgical Science and Engineering,Cen tral South University,Changsha 410017,China poly（m-phenylenediamine）; sulfate ions; adsorption; adsorption rate; oxidation state; desorption efficiency |
|---|---|
| ISSN: | 1003-6326 |