CAJ | 학술논문

以壳聚糖、甲基丙烯酸和膨润土为原料，过硫酸钾为引发剂，N ，N′‐亚甲基双丙烯酰胺为交联剂，经过接枝共聚反应制备了聚甲基丙烯酸‐g‐壳聚糖／膨润土纳米复合材料，并将其应用于阳离子染料结晶紫（CV）、亚甲基蓝（MB）及孔雀石绿（MG）的吸附，考察了吸附剂用量、时间、pH及初始浓度对吸附行为的影响．结果表明，制备的吸附剂对3种染料脱色率达96.5％以上，最大吸附量分别为151.74，341.2，122.6 mg·g －1．吸附过程符合准二级吸附速率方程和Langmuir等温吸附模型．
이각취당、갑기병희산화팽윤토위원료，과류산갑위인발제，N ，N′‐아갑기쌍병희선알위교련제，경과접지공취반응제비료취갑기병희산‐g‐각취당／팽윤토납미복합재료，병장기응용우양리자염료결정자（CV）、아갑기람（MB）급공작석록（MG）적흡부，고찰료흡부제용량、시간、pH급초시농도대흡부행위적영향．결과표명，제비적흡부제대3충염료탈색솔체96.5％이상，최대흡부량분별위151.74，341.2，122.6 mg·g －1．흡부과정부합준이급흡부속솔방정화Langmuir등온흡부모형．
The poly (methacrylic acid )‐g‐chitosan/bentonite composite is synthesized by free radical polymerization in aqueous solution using methacrylic acid , chitosan and benonite as raw materials , potassium persulfate as initiator , N ,N′‐methylene‐bis‐acrylamide as crosslinker , then , used to absorb cationic dyes ,such as crystal violet(CV) ,methylene bule(MB)and malachite green(MG) .Effects of the experimental conditions such as amount of absorbents , time , pH and initial concentration on the adsorption properties as well as thermodynamics and dynamics are also investigated . The results show that the removal rate of three dyes is above 96.5% and the maximum adsorption amounts are 151.74 ,341.2 and 122.6 mg·g-1 . The adsorption process is obeyed pseudo‐second‐order kinetics and Langmuir isotherm model .