CAJ | 학술논문

研究吸附介质的pH值、尿素及盐类对木质素磺酸钠( SL)在氧化铁表面吸附性能的影响规律，结果表明，络合能力较强的柠檬酸钠使SL的吸附量几乎减少至零，较弱络合能力的亚硫酸钠使SL的吸附量具有一定程度的降低，而无络合能力的硫酸钠增大了SL的吸附量。说明SL的羧基与氧化铁之间的络合吸附驱动力对吸附起主导作用，磺酸基对其在氧化铁上吸附的影响很弱。采用氯化锂屏蔽部分羧基后SL在氧化铁上的吸附量也有所降低，进一步证明了羧基与氧化铁表面的络合作用是其吸附的主要驱动力。
연구흡부개질적pH치、뇨소급염류대목질소광산납( SL)재양화철표면흡부성능적영향규률，결과표명，락합능력교강적저몽산납사SL적흡부량궤호감소지령，교약락합능력적아류산납사SL적흡부량구유일정정도적강저，이무락합능력적류산납증대료SL적흡부량。설명SL적최기여양화철지간적락합흡부구동력대흡부기주도작용，광산기대기재양화철상흡부적영향흔약。채용록화리병폐부분최기후SL재양화철상적흡부량야유소강저，진일보증명료최기여양화철표면적락합작용시기흡부적주요구동력。
The effect of the pH of adsorption medium, the urea and the salts on the adsorption property of sodium lignosulphonate( SL) on the surface of the ferric oxide particles was studied. The results showed that the sodium citrate with strongest complexing power maked the adsorption amount of SL on ferric oxide reduce to almost zero. The sodium sulfite with weak complexing power causes the adsorption amount of SL a certain re-duction. The sodium sulfate with no complexing power causes the adsorption amount of SL a certain increase instead. It is concluded that the complex adsorption driving force between the carboxyl groups of SL and the ferric oxide plays a leading role in the adsorption process and the sulfonic groups of SL have very weak influence on the adsorption on the ferric oxide. The lithium chloride was used to mask most carboxyl groups of SL, and the adsorption amount of the masked SL on ferric oxide was reduced evidently. The results further proved that the complex force between the carboxyl groups of SL and the ferric oxide played the leading role in the adsorption process. In addition, the results showed that the electrostatic and hydrogen bond interaction between SL and ferric oxide had little influence on the adsorption.