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文章采用分步合成法制备了磁性吸附剂Fe3O4@SiO2-NH2，通过红外光谱仪(IR)、X射线光电子能谱仪(XPS)、振动样品磁强计(VSM)和扫描电子显微镜(SEM)对其进行了表征，同时研究了pH值、吸附时间、初始浓度和温度对Fe3O4@SiO2-NH2吸附特性的影响。结果表明：当温度为25℃、pH值为5.16、投加量为0.01 g、吸附时间为50 min时，Fe3O4@SiO2-NH2对Cd2+的吸附量为173.91 mg/g;Fe3O4@SiO2-NH2对Cd2+的吸附属于化学吸附，准二级动力学模型能较好地拟合吸附动力学行为；Langmuir等温吸附模型能较好地描述Fe3O4@SiO2-NH2对Cd2+的吸附过程，基于Langmuir等温吸附模型计算获得的吸附量为175.43 mg/g，与试验测定值接近。热力学数据表明，Fe3O4@SiO2-NH2对Cd2+的吸附是自发且吸热的过程。
Abstract：The magnetic adsorbent Fe3O4@SiO2-NH2 was prepared using step-by-step synthesis method in the liquid phase. The prepared adsorbent Fe3O4@SiO2-NH2 was characterized by infrared spectrometer(IR), X-ray photoelectron spectroscopy(XPS), vibrating sample magnetometry(VSM), and scanning electron microscopy(SEM). Simultaneously, the effects of pH value, adsorption time, initial concentration, and temperature on the adsorption performance of Fe3O4@SiO2-NH2 were studied. The results showed that at a temperature of 25 ℃, pH of 5.16, Fe3O4@SiO2-NH2 dosage of 0.01 g, and adsorption time of 50 minutes, the adsorption capacity of Fe3O4@SiO2-NH2 for Cd2+ was 173.91 mg/g. The adsorption of Fe3O4@SiO2-NH2 for Cd2+ was chemisorption.The Langmuir isotherm adsorption model better described the adsorption process of Fe3O4@SiO2-NH2 for Cd2+.The adsorption capacity calculated by the Langmuir isotherm adsorption model was 175.43 mg/g, which was close to the experimental measurement value. Thermodynamic data indicated that the adsorption of Fe3O4@SiO2-NH2 for Cd2+ was a spontaneous and endothermic process.
1 Rahman N,Raheem A.Adsorption of Cd(II) ions on magnetic graphene oxide/cellulose modified withβ-cyclodextrin:Analytical interpretation via statistical physics modeling and fractal like kinetic approach[J].Environmental Research,2024,243:117868.
2 Wang X X,Meng L,Hu M Y,Gao L,Lian B.The competitive and selective adsorption of heavy metals by struvite in the Pb(II)-Cd(II)-Zn(II) composite system and its environmental significance[J].Water Research,2024,250:121087.
3 Wang Z J,Tian H D,Liu J,Wang J Y,Lu Q Y,Xie L.Cd(II) adsorption on earth-abundant serpentine in aqueous environment:Role of interfacial ion specificity[J].Environmental Pollution,2023,331:121845.
4 Dogari H,Salehi M M,Hassanzadeh-Afruzi F,Saeidirad M,Maleki A.Magnetic polyacrylonitrile-melamine nanoadsorbent (PAN-Mel@Fe3O4) for effective adsorption of Cd(II) and Pb(II) from aquatic area[J].Materials Science and Engineering:B,2023,298:116871.
5 Senniappan S,Palanisamy S,Mani V M,Umesh M,Govindasamy C,Khan M I,Shanmugam S.Exploring the adsorption efficacy of Cassia fistula seed carbon for Cd(II) ion removal:Comparative study of isotherm models[J].Environmental Research,2023,235:116676.
6秦志,魏俊富,孔志云,田间,董宇,金戈.基于邻苯二酚/聚乙烯亚胺共沉积改性吸附材料的制备及其对Cd2+吸附性能的研究[J].离子交换与吸附,2020,36(1):58-68.
7 Miao Y H,Qi S Y,Chen G,Wang X,Zhao W X,Wang J,Zhang S H,Xin B P.Efficient removal of As,Cu and Cd and synthesis of photo-catalyst from Cu-smelting waste acid through sulfide precipitation by biogenic gaseous H2S produced by anaerobic membrane bioreactor[J].Chemical Engineering Journal,2023,451(3):138096.
8李少云,张聪宇,陶东平.电解质MIVM对聚合物离子交换膜体系MCl2-M(PSS)2-H2O (M=Ca2+、Mg2+、Cd2+、Zn2+)活度系数的预测[J].离子交换与吸附,2021,37(4):289-303.
9李晓丽,王雪艳,李彦锋.H3PO4改性PS-EDTA树脂对水相中Cu2+、Zn2+和Cd2+的吸附性能研究[J].离子交换与吸附,2012,28(3):193-203.
10 Arul A,Kavitha S,Christus A A B,Surya V J,Ravikumar A,Sivalingam Y.Enhanced removal of Pb(II) and Cd(II)ions from aqueous systems using coated magnetic nanoparticles in activated carbon derived from corncob waste[J].Surfaces and Interfaces,2023,40:103095.
11 Jin S Y,Park B C,Ham W S,Pan L J,Kim Y K.Effect of the magnetic core size of amino-functionalized Fe3O4-mesoporous Si O2 core-shell nanoparticles on the removal of heavy metal ions[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2017,531:133-140.
12王青,庞少峰,王彦斌,卢新宇,陈奇,聂宏杰,朱星臣,苏琼.生物质复合材料吸附水中重金属离子的研究进展[J].功能材料,2024,55(2):2029-2040.
13郭双祯.磁性吸附材料分离电解锌渣中重金属的研究[D].天津:天津大学,2020.
14 Kulpa-Koterwa A,Ryl J,Górnicka K,Niedzia?kowski P.New nanoadsorbent based on magnetic iron oxide containing 1,4,7,10-tetraazacyclododecane in outer chain (Fe3O4@Si O2-cyclen) for adsorption and removal of selected heavy metal ions Cd2+,Pb2+,Cu2+[J].Journal of Molecular Liquids,2022,368:120710.
15 Abouelnaga A M,Mansour A M,Hammad A B A,Nahrawy A M E.Optimizing magnetic,dielectric,and antimicrobial performance in chitosan-PEG-Fe2O3@Ni O nanomagnetic composites[J].International Journal of Biological Macromolecules,2024,260:129545.
16 Mubark A E.Sequestration of zirconium and hafnium content using magnetic cellulose/chitosan nanocomposites from waste effluents[J].Journal of Water Process Engineering,2024,58:104759.
17牛乙涛,包国庆,吴纯鑫,赵德明.功能化纳米复合材料Fe3O4@Si O2-3-氨丙基三甲氧基硅烷的制备及其对Pb(II)的吸附[J].复合材料学报,2023,40(6):3350-3365.
18万徐庆,孙涵,王磊,王旭东,汪婉莹,裴添.胺化Fe3O4@Si O2纳米颗粒的制备及其对水溶液中Cr(VI)的去除[J].硅酸盐学报,2022,50(5):1364-1374.
19 Liu Z G,Lei M,Zeng W,Li Y,Li B L,Liu D X,Liu C.Synthesis of magnetic Fe3O4@Si O2-(-NH2/-COOH)nanoparticles and their application for the removal of heavy metals from wastewater[J].Ceramics International,2023,49(12):20470-20479.
20 Fayyazi F,Haghshenas D F,Kowsari E,Ghazitabar A.Synthesis of a three-dimensional reduced graphene oxide aerogel decorated with (Fe3O4@Si O2-NH2)-COC2H4COOH for adsorption of heavy metal cations[J].Journal of Molecular Liquids,2023,386:122512.
21 Sanati A M,Kamari S,Ghorbani F.Application of response surface methodology for optimization of cadmium adsorption from aqueous solutions by Fe3O4@Si O2@APTMS core-shell magnetic nanohybrid[J].Surfaces and Interfaces,2019,17:100374.
22 Pang Y,Zeng G M,Tang L,Zhang Y,Liu Y Y,Lei X X,Li Z,Zhang J C,Liu Z F,Xiong Y Q.Preparation and application of stability enhanced magnetic nanoparticles for rapid removal of Cr(VI)[J].Chemical Engineering Journal,2011,175:222-227.
23潘章超,邹明明,王勇.大孔树脂吸附裸花紫珠苯乙醇苷的动力学与热力学研究[J].离子交换与吸附,2024,40(1):72-80.
24 Li Y J,Sui K Y,Liu R Z,Zhao X,Zhang Y,Liang H C,Xia Y Z.Removal of methyl orange from aqueous solution by calcium alginate/multi-walled carbon nanotubes composite fibers[J].Energy Procedia,2012,16:863-868.
25 Younes A E,El-Sheikh A H,Alsmadi R B.The use of new class α-amino nitrile modified magnetic adsorbents for removal of Cd(II) from aqueous medium:Sorbent modification vs.α-amino nitrile addition to the adsorption medium[J].Emerging Contaminants,2024,10(1):100261.
26 Chander S,Yadav S,Sharma H R,Gupta A.Sequestration of Cd(II) utilizing biowaste-fabricated recyclable mesoporous magnetite (Fe3O4) nano-adsorbent:process optimization,thermodynamic investigation,simulation modeling,and feasibility for electroplating effluent[J].Journal of Alloys and Compounds,2024,986:174088.
27 Salih S S,Shihab M A,Mohammed H N,Kadhom M,Albayati N,K.Ghosh T K.Chitosan-vermiculite composite adsorbent:preparation,characterization,and competitive adsorption of Cu(II) and Cd(II) ions[J].Journal of Water Process Engineering,2024,59:105044.
28 Tang H Y,Zhang Y,Wu Y,Wu W Y,Bi S Y,Wu J J,Yang S T.Discard the dross and select the essence:purified orange peel with coupled alkali-acid hydrolysis as potential Cd(II)-capturing adsorbent[J].Journal of Environmental Chemical Engineering,2023,11(3):110033.
29 Dong C W,Zhou N,Zhang J X,Lai W N,Xu J F,Chen J L,Yu R H,Che Y P.Optimized preparation of gangue waste-based geopolymer adsorbent based on improved response surface methodology for Cd(II) removal from wastewater[J].Environmental Research,2023,221:115246.
30 Fu H Y,He H F,Zhu R L,Ling L,Zhang W X,Chen Q Z.Phosphate modified magnetite@ferrihydrite as an magnetic adsorbent for Cd(II) removal from water,soil,and sediment[J].Science of The Total Environment,2021,764:142846.
31邓文谨,姚晨曦,林文波,张家豪,彭学文,张春燕,罗建新.含磺酸钠聚合物微凝胶的制备及对Cu(II)和Pb(II)的吸附[J].塑料工业,2023,51(11):170-179.
32付欣,蔡平雄,潘远凤.聚乙烯亚胺改性蔗渣纤维素/蒙脱土复合球的制备及对Cd(Ⅱ)的吸附[J].精细化工,2023,40(11):2535-2543.
基本信息:
DOI：10.16026/j.cnki.iea.2024050394
中图分类号:X703;TQ424
引用信息:
[1]刘永侠,焦朋朋,王晴等.磁性吸附剂Fe_3O_4@SiO_2-NH_2的制备及其对Cd~(2+)的吸附性能研究[J].离子交换与吸附,2024,40(05):394-403.DOI:10.16026/j.cnki.iea.2024050394.
基金信息:
山东省自然科学基金项目(基金号ZR2021MD004); 山东省高校青创科技计划资助项目(项目号2021KJ063); 枣庄学博士科研启动基金(基金号1020705)