通过辐射接枝的方法在聚丙烯(PP)纤维上接枝丙烯酸单体,涂覆硅酸钠后经氯化钙交联得到接枝硅酸钙的PP功能化纤维(PP-g-CaSiO3)。红外光谱(IR)和扫描电镜图(SEM)表明硅酸钙成功地接枝到PP纤维表面。BET测试表明,当接枝率为46%时,PP-g-CaSiO3的比表面积高达376.64m2/g。PP-g-CaSiO3对水中双酚A(BPA)表现出良好的吸附性能,饱和吸附量达到39.23mg/g,吸附等温线满足Langmuir模型,吸附动力学符合二级动力学模型。
The functional fiber(PP-g-CaSiO3) was prepared by coating of sodium silicate(Na2SiO3) and then crosslinking of calcium chloride(CaCl2) on the acrylic acid(AA) grafted polypropylene(PP) fiber.FT-IR spectroscopy,BET measurement and scanning electron microscopy(SEM) analysis indicated that CaSiO3 was successfully grafted onto polypropylene fiber,and the specific surface area of fiber increased significantly.The adsorption of bisphenol A(BPA) on PP-g-CaSiO3 was also studied.The results showed that the data of BPA adsorption on the fiber sample were fitted to the Langmuir isotherm model and second-order kinetics equation,and its saturated adsorption capacity reached 39.23mg/g.
参考文献
[1] | 王跃志.2005年我国双酚A产品市场前景极为乐观[J].化工进展,2000(04):67. |
[2] | EL-Mekkawy S;Meselhy M R;Nakamara N et al.[J].Phytochemistry,1998,49(06):1651-1657. |
[3] | Rubin S;Lenkowski R;Schaeberle M et al.[J].Endocri- nology,2006,147(08):3681-3691. |
[4] | 郭艳英,段昌群,杨良.环境激素研究进展探讨[J].云南环境科学,2004(03):12-15. |
[5] | 李思瑜,刘兴荣,黄敏,陈玉娟.环境内分泌干扰物双酚A脱除方法研究进展[J].现代预防医学,2007(11):2094-2095. |
[6] | 刘桂芳,马军,关春雨,李旭春,秦庆东,李圭白.改性活性炭对水溶液中双酚-A的吸附研究[J].环境科学,2008(02):349-355. |
[7] | 韩璐,王浩然,易小祺,胡锦英,张阳.粒状活性炭对水中双酚A吸附性能的研究[J].沈阳师范大学学报(自然科学版),2010(04):525-529. |
[8] | 陈素清,梁华定,邱昀芳.碳纳米管吸附水溶液中双酚A的热力学[J].应用化学,2009(05):571-575. |
[9] | 陈超,姜正雄,薛罡,周美华.PAN纳米纤维毡负载TiO2处理废水中苯酚[J].安徽农业科学,2009(04):1756-1757,1842. |
[10] | Xue Weichang;Bandyopadhyay A;Bose S .[J].Acta Biomaterialia,2009,6:1686-1696. |
[11] | 韩剑宏,刘派,王维大,韩剑锋,马莉.硅酸钙吸附处理焦化废水的试验研究[J].无机盐工业,2011(07):45-47. |
[12] | Wei Junfu;Zhao Kongyin;Zhang Huan et al.[J].Advances in Materials Research,2010,150-151:1764-1767. |
[13] | Parida, SK;Dash, S;Patel, S;Mishra, BK .Adsorption of organic molecules on silica surface[J].Advances in Colloid and Interface Science,2006(1/3):77-110. |
[14] | 张艳丽;李冬光;原思国.[J].化学世界,2006:7407-7409. |
- 下载量()
- 访问量()
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%