海藻酸钠/聚乙烯醇复合凝胶的制备及吸附Co2+、MB的研究

吴淑茗, 梁雯霞, 吴佳斌

PDF(1422 KB)
PDF(1422 KB)
塑料科技 ›› 2024, Vol. 52 ›› Issue (09) : 27-31. DOI: 10.15925/j.cnki.issn1005-3360.2024.09.005
理论与研究

海藻酸钠/聚乙烯醇复合凝胶的制备及吸附Co2+、MB的研究

作者信息 +

Study on Preparation of SA/PVA Composite Hydrogel and Adsorption of Co2+ and MB

Author information +
History +

摘要

以海藻酸钠(SA)、聚乙烯醇(PVA)为原料,以丙烯酸(AA)为单体合成SA/PVA-g-AA复合凝胶吸附剂,对凝胶材料的官能团结构和微观形貌进行表征。以Co2+、亚甲基蓝(MB)为吸附对象,考察了pH值、Co2+/MB初始质量浓度、凝胶投加量等对凝胶吸附性能的影响,并对吸附动力学进行探究。结果表明:复合凝胶的比表面积和平均孔径分别为120.896 7 m2/g和8.069 08 nm,呈现多孔结构,有利于对Co2+、MB的吸附。凝胶在60 min内对Co2+和MB的吸附都达到平衡,且均与准二级吸附动力学模型拟合较好。pH值分别为3和7、凝胶投加量为0.15 g、初始质量浓度均为100 mg/L条件下,凝胶对Co2+、MB的最大去除率分别为95.01%和98.78%。

Abstract

Using sodium alginate (SA), polyvinyl alcohol (PVA) as raw materials, acrylic acid (AA) as monomer to synthesize SA/PVA-g-AA hydrogel, the functional group structure and micromorphology of the hydrogel material were characterized. Using Co2+/MB as the adsorption object, the effects of pH, initial mass concentration, hydrogel addition on the adsorption of hydrogel performance were investigated, and the adsorption dynamics were explored. The results show that SA/PVA-g-AA hydrogel is a porous surface area of 120.896 7 m2/g and an average adsorption pore diameter of 8.069 08 nm which is beneficial to the adsorption of Co2+and MB. The composite hydrogel has a fast adsorption rate for Co2+/MB, and can reach adsorption equilibrium within 60 min, which is consistent with the quasi-second-order kinetic model. The maximum removal rates of Co2+ and MB reaches 95.01%and 98.78%, respectively, when the pH value is 3 and 7, the hydrogel dosage is 0.15 g, and the initial mass concentration is 100 mg/L.

关键词

海藻酸钠 / 聚乙烯醇 / 复合凝胶 / Co2+ / MB / 动力学

Key words

Sodium alginate / PVA / Composite hydrogel / Co2+ / MB / Dynamics

中图分类号

TB332

引用本文

导出引用
吴淑茗 , 梁雯霞 , 吴佳斌. 海藻酸钠/聚乙烯醇复合凝胶的制备及吸附Co2+、MB的研究. 塑料科技. 2024, 52(09): 27-31 https://doi.org/10.15925/j.cnki.issn1005-3360.2024.09.005
WU Shu-ming, LIANG Wen-xia, WU Jia-bin. Study on Preparation of SA/PVA Composite Hydrogel and Adsorption of Co2+ and MB[J]. Plastics Science and Technology. 2024, 52(09): 27-31 https://doi.org/10.15925/j.cnki.issn1005-3360.2024.09.005

参考文献

1
曹如楼,杨卫民,丁玉梅,等.静电纺丝纳米纤维在水体重金属及染料吸附中的研究进展[J].塑料科技,2018,46(11):112-117.
2
MAHMOODI N M, MOKHTARI-SHOURIJEH Z. Preparation of polyacrylonitrile-titania electrospun nanofiber and its photocatalytic dye degradation ability[J]. Progress in Color, Colorants and Coatings, 2017, 10: 23-30.
3
侯芳,郑伟.聚苯胺/聚苯乙烯复合材料的制备及对Pb2+吸附性能的研究[J].塑料科技,2021,49(5):48-52.
4
BAYAT M, JAVANBAKHT V, ESMAILI J. Synthesis of zeolite/nickel ferrite/sodium alginate bionanocomposite via a co-precipitation technique for efficient removal of water-soluble methylene blue dye[J]. International Journal of Biological Macromolecules, 2018, 116(9): 607-619.
5
赵亭,张剑.磁性壳聚糖/氧化石墨烯复合材料对钴(Ⅱ)吸附性能研究[J].冶金分析,2022,42(5):48-54.
6
姜侠,王冠,刘振华,等.改性活性炭对亚甲基蓝的吸附性能及机理[J].水处理技术,2020,46(6):76-82.
7
CHENG C, LIU B, LIU C Y, et al. Tracking variation of fluorescent dissolved organic matter during full-scale printing and dyeing wastewater treatment[J]. Chemosphere, 2020, DOI: 10.1016/j.chemosphere.2020.126559.
8
韩思贤,刘维平.g-C3N4/MnO2@PANI光催化阴极的产电性能及其对废水中铜的回收效果[J].化工环保,2022,42(5):579-586.
9
刘顺强,解明江,郭学锋,等.混晶海胆状TiO2空心球多级结构的制备及其对亚甲基蓝的光催化降解[J].无机化学学报,2020,36(2):317-323.
10
ZAHERI P, DAVARKHAH R. Selective separation of uranium from sulfuric acid media using a polymer inclusion membrane containing alamine336[J]. Chemical Papers, 2020, 74(8): 2573-2581.
11
MOHOD A V, HINGE S P, RAUT R S, et al. Process intensified removal of methyl violet 2B using modified cavity-bubbles oxidation reactor[J]. Journal of Environmental Chemical Engineering, 2018, 6(1): 574-582.
12
马莹,王恬,张恒.氧化石墨烯吸附亚甲基蓝的分子动力学模拟[J].高等学校化学学报,2019,40(12):2534-2541.
13
任南琪,周显娇,郭婉茜.染料废水处理技术研究进展[J].化工学报,2013,64(1):84-94.
14
CHU K H. Improved fixed bed models for metal biosorption[J]. Chemical Engineering Journal, 2004, 97(2): 233-239.
15
张雅静,王向鹏,庞丽平.吸水树脂在染料吸附领域应用进展[J].塑料科技,2022,50(6):119-123.
16
张晓玉,张政,徐奥.改性木质素基水凝胶的制备及其对Cr(Ⅵ)和甲基橙的吸附研究[J].化学与生物工程,2023,40(5):16-24.
17
WANG H Q, XU W L, SONG S S, et al. Hydrogels facilitated by monovalent cations and their use as efficient dye adsorbents[J]. Journal of Physical Chemistry B, 2014, 118(17): 4693-4701.
18
HUBBE M A, AYOUB A, DAYSTAR J S, et al. Enhanced absorbent products incorporating cellulose and its derivatives: A review[J]. BioResources, 2013(4): 12-14.
19
DEMI R A. Heavy metal adsorption onto agro-based waste materials: A review[J]. Journal of Hazardous Materials, 2008, 157(2/3): 220-229.
20
钱建瑛,丁振中,杨涛,等.废弃虾壳制备改性甲壳素凝胶球及其对金属离子的吸附性能[J].生物质化学工程,2016,50(6):37-42.
21
罗文强.羧甲基壳聚糖吸附剂对钴离子的吸附特性研究[D].广州:华东理工大学,2018.
22
JAYARAMUDU T, PYARASANI R D, AKBARI-FAKHRABADI A, et al. Synthesis of gum acacia capped polyaniline-based nanocomposite hydrogel for the removal of methylene blue dye[J]. Journal of Polymers and the Environment, 2021, 29: 2447-2462.
23
孙将皓,邵彦峥,魏春艳,等.海藻酸钠/改性氧化石墨烯微孔气凝胶纤维制备与吸附性能[J].纺织学报,2023,44(4):24-31.
24
林建明,唐群委,吴季怀.高强度PAM/PVA互穿网络水凝胶的合成[J].华侨大学学报:自然科学版,2010,31(1):41-48.
25
LI J Y, SUO Z G, VLASSAK J J. Stiff, strong, and tough hydrogels with good chemical stability[J]. Journal of Materials Chemistry B, 2014, 2(39): 6708-6713.
26
吴淑茗,彭瑞,翁自平,等.海藻酸钠/硅藻土复合凝胶对Ni(Ⅱ)、Cd(Ⅱ)的吸附机制[J].塑料科技,2023,51(4):16-20.
27
冯华伟.海藻酸钠基双网络复合水凝胶的制备及吸附性能研究[D].淮南:安徽理工大学,2020.
28
车春波,谷芳,李俊生,等.玉米秸秆纤维素/丙烯酸水凝胶的制备及其吸附性能研究[J].化工新型材料,2023,51(3):242-246.
29
PENG X W, ZHONG L X, REN J L, et al. Highly effective adsorption of heavy metal ions from aqueous solutions by macroporous xylan-rich hemicelluloses-based hydroge[J]. Journal of Agricultural and Food Chemistry, 2012, 60(15): 3909-3916.
30
吴淑茗,刘钰成,吴佳斌,等.玉米淀粉/羧甲基纤维素生物复合凝胶的制备及吸附行为研究[J].塑料科技,2023,51(3):73-78.
31
毛立娟,王孝平,高原,等.氮气吸附BET法测定纳米材料比表面积的比对实验[J].现代测量与实验室管理,2010,18(5):3-5.
32
张文良,夏延致,桂由刚,等.海藻酸钠/羧甲基纤维素多孔气凝胶吸附阳离子染料性能的研究[J].材料科学,2019,9(1):104-114.
33
SAHMOUNE M N, LOUHAB K, BOUKHIAR A. Advanced biosorbents materials for removal of chromium from water and wastewaters[J]. Environmental Progress&Sustainable Energy, 2011, 30(3): 284-293.

基金

福建省大学生创新创业训练计划(S202412992019)
闽南科技学院数字化课程建设项目(MKJG-2023-005)
闽南科技学院校级课程思政示范课程(MKKCSZ-2023-07)

评论

PDF(1422 KB)

Accesses

Citation

Detail

段落导航
相关文章

/