以甲基丙烯酸缩水甘油酯(GMA)为功能单体,采用分数聚合法合成了聚(苯乙烯-甲基丙烯酸缩水甘油酯)[P(St-GMA)]磁性微球,利用三乙烯四胺(TETA)修饰P(St-GMA)磁性微球,制备表面含有氨基的P(St-GMA)-TETA磁性微球。采用光学显微镜、傅里叶红外光谱(FT-IR)和样品磁力振荡计(VSM)等手段进行表征,并将其应用于对含酸性品红(AF)的模拟废水吸附性能研究。考察了pH、吸附剂用量和吸附时间等因素对[P(St-GMA)-TETA]磁性微球吸附量的影响。结果表明:该吸附剂对AF的吸附符合准二级动力学模型,60min内基本达到吸附平衡,在298K时,最大吸附量高达171.821mg/g,Langmuir等温吸附数学模型能较好地拟合P(St-GMA)-TETA磁性微球对AF染料的吸附。
Using glycidyl methacrylate (GMA) as functional monomer,P(St-GMA) magnetic microspheres were synthesized by dispersion polymerization,and then were modified with Triethylenetetramine (TETA) to obtain amino-functionalized [P(St-GMA)-TETA] magnetic microspheres.The [P(St-GMA)-TETA] magnetic microspheres were characterized by optical microscope,Fourier transform infrared spectrometer (FT-IR),and vibrating sample magnetometer (VSM).After that,Magnetic microspheres were used to adsorb acid fuchsin (AF) from simulated wastewater.The effects of pH,adsorbent dosage,and adsorption time on the adsorptions amount of [P(St-GMA)-TETA] magnetic microspheres were investigated.The adsorption reached equilibrium within 60 min,and the process followed pseudo-second-order kinetic.Under 298K,the saturated adsorption was approximately 171.821mg/g.The adsorption of AF by magnetic microspheres conformed to Langmuir model.
[1] 刘晓红,王省伟,康妮娜,等.核桃果皮基活性炭对甲基橙和酸性品红的吸附性能[J].环境工程学报,2015,9(5):2155-2159.
[2] 魏恋璎,陈明星,张威.PMIA/PA-MZIF-8复合纳滤膜的制备及其在染料废水处理中的应用[J].印染,2021,47(9):55-60,65.
[3] 房平,温璐,梁林栋,等.聚偏氟乙烯/氧化石墨烯/多壁碳纳米管/聚乙烯醇/聚乙烯吡咯烷酮K30共混膜处理染料废水的应用研究[J].化工新型材料,2021,49(6):276-280.
[4] 杨黄根,冉小春,檀家雯,等.商用TiO2负载贵金属光催化剂的制备及其降解含染料废水的性能研究[J].化工新型材料,2020,48(10):135-138.
[5] Zheng X G,Kang F Y,Huang C Y,et al.Enhanced photocatalytic capacity of ZnS-ZnO-Sm2O3 composites for the removal of dyes and antibiotics in visible light region[J].Journal of Industrial and Engineering Chemistry,2020(88):186-195.
[6] 潘霏,张学洪,刘立恒.Fe/Cu和Fe/Cu/C内电解处理亚甲基蓝模拟染料废水[J].桂林理工大学学报,2019,39(1):183-189.
[7] Wang Y T,Wang K Q,Lin J A,et al.The preparation of nano-MIL-101(Fe)@chitosan hybrid sponge and its rapid and efficient adsorption to anionic dyes[J].International Journal of Biological Macromolecules,2020,165:2684-2692.
[8] Kong Q M,Wang X J,Lou T.Preparation of millimeter-sized chitosan/carboxymethyl cellulose hollow capsule and its dye adsorption properties[J].Carbohydrate Polymers,2020,244:116481.
[9] Wang H F,Li Z C,Yahyaoui S,et al.Effective adsorption of dyes on an activated carbon prepared from carboxymethyl cellulose:experiments,characterization and advanced modeling[J].Chemical Engineering Journal,2021,417:128116.
[10] Chiang C H,Chen J,Lin J H,et al.Preparation of pore-size tunable activated carbon derived from waste coffee grounds for high adsorption capacities of organic dyes[J].Journal of Environmental Chemical Engineering,2020,8:103929.
[11] Nodehi R,Shayesteh H,Kelishami A R.Enhanced adsorption of congo red using cationic surfactant functionalized zeolite particles[J].Microchemical Journal,2020,153:104281.
[12] Al-Yousef H A,Alotaibi B M,Alanazi M M,et al.Theoretical assessment of the adsorption mechanism of ibuprofen,ampicillin,orange G and malachite green on a biomass functionalized with plasma[J].Journal of Environmental Chemical Engineering,2021,9:104950.
[13] Fadwa Largo F,Haounati R,Akhouairi S,et al.Adsorptive removal of both cationic and anionic dyes by using sepiolite clay mineral as adsorbent:experimental and molecular dynamic simulation studies[J].Journal of Molecular Liquids,2020,318:114247.
[14] Ou Q,Zhang,Q M,Zhu,P C,et al.Pentiptycene-based microporous polymer for removal of organic dyes from water[J].European Polymer Journal,2019,120:109216.
[15] 黄征青,丁彦雄,杨天齐.含壳聚糖季铵盐磁性微球的制备及对甲基橙的吸附效果研究[J].化工新型材料,2018,46(2):209-212.
[16] 吴帅,侯太磊,闫良国.膨润土和磁性膨润土微球的制备及其对水中碱性染料的吸附性能[J].中国粉体技术,2020,26(3):7-14.
[17] 陈芳妮,孙晓君,魏金枝,等.磁性三乙烯四胺氧化石墨烯对Cu2+的吸附行为[J].化工学报,2016,67(5):1949-1956.
[18] 胡冬婉,马占玲,马骁,等.改性果胶-Fe3O4磁性微球制备及对Pb2+吸附性能[J].无机盐工业,2020,52(6):24-29.
[19] Wang K,Qiu G M,Cao H Y,et al.Removal of chromium(Ⅵ) from aqueous solutions using Fe3O4 magnetic polymer microspheres functionalized with amino groups[J].Materials,2015,8(12):8378-8391.
[20] Yu S Y,Wang J B,Cui J L.Preparation of a novel chitosan-based magnetic adsorbent CTS@SnO2@Fe3O4 for effective treatment of dye wastewater[J].International Journal of Biological Macromolecules,2020,156:1474-1482.
[21] Zhang B L,Yu H Y,Wang J Q,et al.Fe3O4@SiO2@CCS porous magnetic microspheres as adsorbent for removal of organic dyes in aqueous phase[J].Journal of Alloys and Compounds,2018,735:1986-1996.
[22] Cherifi Z,Boukoussa B,Mokhtar A,et al.Preparation of new nanocomposite poly(GDMA)/mesoporous silica and its adsorption behavior towards cationic dye[J].Reactive and Functional Polymers,2020,153:104611.
基金资助
内蒙古自治区高等学校科学研究项目(NJZY22140和NJZY21136);国家级大学生创新创业计划项目(202210138003)
PDF
