以埃洛石纳米管为载体,采用共沉淀法制备磁性埃洛石纳米管复合材料。利用X射线衍射、红外光谱和透射电镜对所得样品的物理结构和性质进行表征,对所得磁性样品进行磁性测定。以含有亚甲基蓝的废水为研究对象,利用磁性埃洛石纳米管进行类芬顿降解的研究,考察了不同降解条件的影响。结果表明:选用磁含量为33%的样品,用量为1g/L,在反应温度为30℃,废水中亚甲基蓝的浓度为100mg/L,H2O2投加量为15mL,显示较好的类芬顿降解性能。进一步提高样品用量,可以提高废水中亚甲基蓝的降解率,并且随着溶液pH的升高,降解率不断增加,表明磁性样品适应较宽广的废水pH范围。
Using halloysite nanotubes as a carrier,a magnetic halloysite nanotubes composite material was prepared by a co-precipitation method.The physical structure and properties of the obtained samples were characterized by XRD,FT-IR and TEM,and measured the magnetic properties of the samples.Taking the wastewater containing methylene blue(MB) as the research object,the nanotubes were used to study Fenton-like degradation,and investigated the effects of different degradation conditions.The results showed that a sample with a magnetic content of 33%,a dosage of 1g/L,a reaction temperature of 30℃,a concentration of MB in the wastewater of 100mg/L,and a dosage of 15mL of H2O2,showed good Fenton-like degradation performance.Further increasing the amount of sample can increase the adsorption degradation rate of MB in wastewater,and the degradation rate continued to increase as the pH of the solution rised,indicating that the magnetic sample was suitable for a wide range of wastewater pH value.
[1] 王晴雯,刘长相,罗毅,等.Mg(OH)2的水热合成及其催化降解染料废水性能研究[J].应用化工,2019,48(10):2390-2392,2398.
[2] 高奕红,王珊,邓玲娟,壳聚糖/SiO2复合材料的制备及对甲基橙的吸附性能[J].硅酸盐通报,2019,38(5):1579-1584.
[3] 张建民,张田卉,李红玑,等.磁性氧化石墨烯-凹凸棒石复合材料对亚甲基蓝的吸附性能研究[J].化工新型材料,2020,48(1):177-181,188.
[4] 陈泽文,周子晗,吴美仪,等.埃洛石纳米管/聚间苯二胺复合材料去除Cr(Ⅵ)的性能[J].复合材料学报,2020,37(3):493-503.
[5] 马智,何康康,陈航,埃洛石纳米管及其复合材料在水处理中的应用研究进展[J].化工新型材料,2017,45(6):37-39.
[6] 王欣,陈元涛,张炜,等.改性埃洛石材料的制备及其对亚甲基蓝吸附行为的研究[J].分析测试学报,2016,35(6):729-733.
[7] 张峰,詹俊阁,李学伟,等.电芬顿法去除化学镀镍废水中的镍、总磷和COD[J].环境工程学报,2020,14(9):2428-2435.
[8] 刘义刚,赵鹏,韩玉贵,等.W元素掺杂CeO2非均相电芬顿催化剂高效处理含油污水[J].高等学校化学学报,2020,41(3):498-504.
[9] 冯雪梅,卫新来,陈俊,等,高级氧化技术在废水处理中的应用进展[J].应用化工,2020,49(4):993-996,1001.
[10] 赫文芳,陈元涛,张炜,等.磁性埃洛石复合材料的制备及其对十八烷胺吸附性能研究[J].环境科学学报,2016,36(3):873-879.
[11] Yang J O,Zhou Z,Zhang Y,et al.High morphological stability and structural transition of halloysite (Hunan,China) in heat treatment[J].Applied Clay Science,2014,101(4):16-22.
[12] Dong Y X,Wen B,Chen Y J,et al.Autoclave-free facile approach to the synthesis of highly tunable nanocrystal clusters for magnetic responsive photonic crystals[J].RSC Advance,2016,6:64434-64440.
[13] 胡春联,陈元涛,张炜,等.Co(Ⅱ)在磁性埃洛石上的吸附行为研究[J].环境科学学报,2015,35(9):2813-2819.
[14] 孙青,祁琪,张俭,等.磁性ZnFe2O4/埃洛石复合材料的结构及吸附性能研究[J].无机材料学报,2018,33(4):390-396.
[15] Yang S,Zong P,Hu J,et al.Fabrication of β-cyclodextrin conjugated magnetic HNT/iron oxide composite for high-efficient decontamination of U(Ⅵ)[J].Chemical Engineering Journal,2013,214:376-385.
[16] Zhang S,Liu K,Chen H,et al.Water-dispersible and quasi-superparamagnetic magnetite nanoparticles prepared in a weakly basic solution at the low synthetic temperature[J].Materials Research Bulletin,2018,105:220-225.
[17] Xie Y,Qian D,Wu D,et al.Magnetic halloysite nanotubes/iron oxide composites for the adsorption of dyes[J].Chemical Engineering Journal,2011,168(2):959-963.
[18] Xia L,Yuantao C,Yaling C,et al.Effect of pH,ionic strength,foreign ions,humic acid and temperature on sorption of radionuclide 60Co(Ⅱ) on illite[J].Journal of Radioanalytical and Nuclear Chemistry,2012,292(3):1357-1366.
[19] 李宗泽.磁性纳米催化剂制备及其催化芬顿氧化降解染料性能研究[D].石家庄:河北科技大学,2017.
[20] 邓景衡,文湘华,李佳喜.碳纳米管负载纳米四氧化三铁多相类芬顿降解亚甲基蓝[J].环境科学学报,2014,34(6):1436-1442.
[21] Kiani G,Dostali M,Rostami A,et al.Adsorption studies on the removal of malachite green from aqueous solutions onto halloysite nanotubes[J].Applied Clay Science,2011,54(1):34-39.
[22] Kiani G,Dostali M,Rostami A,et al.Adsorption studies on the removal of malachite green from aqueous solutions onto halloysite nanotubes[J].Applied Clay Science,2011,54(1):34-39.
[23] 陈金毅,刘小玲,李阊轮,等.纳米氧化亚铜可见光催化分解亚甲基蓝[J].华中师范大学学报(自然科学版),2002,36(2):200-203.
基金资助
山西省自然科学基金项目(201901D111072);国家自然科学基金(51304144)
PDF
