CAJ | 학술논문

采用制备的聚(丙烯酸-co-丙烯酰胺)/蒙脱土/腐殖酸钠复合吸附剂,研究了溶液pH值、吸附时间和Pb~(2+)溶液初始浓度等因素对重金属Pb~(2+)的吸附性能,探讨了复合吸附剂对Pb~(2+)的吸附机理. 结果表明,在pH=6.0、吸附时间2 h、Pb~(2+)溶液初始浓度0.01 mol/L和吸附剂用量0.10 g的条件下,复合吸附剂对Pb~(2+)的吸附量达到364.05 mg/g,平衡所需的时间为15 min. 与蒙脱土相比,复合吸附剂具有更高的吸附容量和更快的吸附速率.
채용제비적취(병희산-co-병희선알)/몽탈토/부식산납복합흡부제,연구료용액pH치、흡부시간화Pb~(2+)용액초시농도등인소대중금속Pb~(2+)적흡부성능,탐토료복합흡부제대Pb~(2+)적흡부궤리. 결과표명,재pH=6.0、흡부시간2 h、Pb~(2+)용액초시농도0.01 mol/L화흡부제용량0.10 g적조건하,복합흡부제대Pb~(2+)적흡부량체도364.05 mg/g,평형소수적시간위15 min. 여몽탈토상비,복합흡부제구유경고적흡부용량화경쾌적흡부속솔.
A composite adsorbent based on acrylic acid, acrylamide, montmorillonite and sodium humate was prepared, and the effects of pH value, contact time, and initial Pb~(2+) concentration on removing Pb~(2+) from the aqueous solution by the composite adsorbent were evaluated. The adsorption mechanism of Pb~(2+) onto the as-prepared adsorbent was discussed. Under the conditions of pH=6.00, contact time of 2 h, an initial Pb~(2+) concentration of 0.01 mol/L and an amount of adsorbent of 0.10 g, the adsorption capacity of the as-prepared adsorbent for Pb~(2+) was found to be 364.05 mg/g and the adsorption system reached equilibrium within 15 min. Compared with Ca-montmorillonite and other adsorbents reported, the as-prepared composite adsorbent has a higher adsorption capacity and a faster adsorption rate.