化工新型材料

化工新型材料 ›› 2026, Vol. 54 ›› Issue (8) : 142-149. DOI: 10.19817/j.cnki.issn1006-3536.2026.08.010

新材料与新技术

改性UIO-66-NH₂的制备及其对甲醛和苯的吸附性能研究

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Preparation of modified UIO-66-NH₂ materials and study on their adsorption performance for formaldehyde and benzene

Shen Jiawei^1,2, Zhou Yekan³, Li Dailei³, Ge Bao³, Ju Lang³, Hu Qinglong³, Chen Chuntan^1,2, Pan Shengwang^1,2, Huang Weijun¹

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Received
2025-06-16
Issue Date	Revised Date
2026-08-20	2025-06-16

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摘要

采用三氟乙酸(TFA)对UIO-66-NH₂进行改性,制备出一系列具有增强孔隙结构与官能团的锆基金属-有机框架(MOFs)材料,并通过吸附实验研究了其对典型室内气态污染物甲醛和苯的吸附行为。当TFA/Zr⁴⁺摩尔比为24时,材料表面形貌更利于室内气态污染物的吸附。动态吸附实验表明,UT-24对苯和甲醛的饱和吸附量最高,分别为115.9mg/g和41.54mg/g,这归因于其优化的孔道结构提供了丰富的吸附位点。静态吸附分析显示,2种污染物在UT-24上的吸附过程均符合Langmuir等温吸附模型,表明吸附以物理单层吸附为主,且对苯具有更高亲和力。材料在298K、相对湿度0%条件下表现最佳,经过5次连续再生循环后仍保持初始吸附容量的89.22%以上,拥有良好的再生能力。

Abstract

Trifluoroacetic acid (TFA) was used to modify UIO-66-NH₂ to produce a series of Zr-based MOFs with enhanced pore structure and functional groups.Adsorption experiments were conducted to investigate their adsorption behavior towards typical indoor gaseous pollutants,formaldehyde and benzene.When the TFA/Zr⁴⁺ molar ratio was 24,the material's surface morphology was more favorable for the adsorption of indoor gaseous pollutants.Dynamic adsorption experiments showed that UT-24 exhibited the highest saturated adsorption capacities for benzene and formaldehyde,reaching 115.9mg/g and 41.54mg/g,respectively,which was attributed to its optimized pore structure providing abundant adsorption sites.Static adsorption analysis revealed that the adsorption processes of both pollutants on UT-24 followed the Langmuir isotherm adsorption model,indicating predominant physical monolayer adsorption with higher affinity towards benzene.The material performed optimally at 298K and 0% relative humidity (RH),and maintained over 89.22% of its initial adsorption capacity after five consecutive regeneration cycles,demonstrating good reusability.

关键词

室内气态污染物 / UIO-66-NH₂ / 酸改性 / 吸附机理

Key words

indoor gaseous pollutants / UIO-66-NH₂ / acid modification / adsorption mechanism

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改性UIO-66-NH₂的制备及其对甲醛和苯的吸附性能研究[J]. 化工新型材料, 2026, 54(8): 142-149 DOI:10.19817/j.cnki.issn1006-3536.2026.08.010

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参考文献

原文顺序 | 出版日期 | 本文引用

[1] Sonne C,Xia C L,Dadvand P,et al.Indoor volatile and semi-volatile organic toxic compounds:need for global action[J].Journal of Building Engineering,2022,62:105344.
[2] Yue X,Ma N L,Sonne C,et al.Mitigation of indoor air pollution:a review of recent advances in adsorption materials and catalytic oxidation[J].Journal of Hazardous Materials,2021,405:124-138.
[3] Loomis D,Guyton K Z,Grosse Y,et al.Carcinogenicity of benzene[J].Lancet Oncol,2017,18(12):1574-1575.
[4] Protano C,Buomprisco G,Cammalleri V,et al.The carcinogenic effects of formaldehyde occupational exposure:a systematic review[J].Cancers,2022,14(1):165.
[5] 中华人民共和国住房和城乡建设部.GB 50325—2020民用建筑工程室内环境污染控制标准[S].北京:中国建筑工业出版社,2020:88.
[6] Wen H,Yuan L,Wei C,et al.Effects of combined exposure to formaldehyde and benzene on immune cells in the blood and spleen in balb/c mice[J].Environmental Toxicology and Pharmacology,2016,45:265-273.
[7] 张卓,洪明婧,陈佳珊,等.MOFs及MOGs对VOCs吸附的研究进展[J].化学工程与装备,2023(4):198-199;204.
[8] Yang Q,Wang Y,Wang J,et al.High effective adsorption/removal of illegal food dyes from contaminated aqueous solution by Zr-MOFs (UIO-67)[J].Food Chemistry,2018,254:241-248.
[9] Cavka J H,Jakobsen S,Olsbye U,et al.A new zirconium inorganic building brick forming metal organic frameworks with exceptional stability[J].Journal of the American Chemical Society,2008,130(42):13850-13851.
[10] Piscopo C G,Polyzoidis A,Schwarzer M,et al.Stability of UIO-66 under acidic treatment:opportunities and limitations for post-synthetic modifications[J].Microporous and Mesoporous Materials,2015,208:30-35.
[11] Wang D,Li Z,Zhou J,et al.Simultaneous detection and removal of formaldehyde at room temperature:janus Au@ZnO@ZIF-8 nanoparticles[J].Nano-micro Letters,2018,10(1):1-11.
[12] Chen X,Li Y,Fu Q,et al.An efficient modulated synthesis of zirconium metal-organic framework UIO-66[J].RSC Advances,2022,12(10):6083-6092.
[13] Li Y L,Zhao Y J,Zhang R,et al.PVP-assisted synthesis of monodisperse UIO-66 crystals with tunable sizes[J].Inorga-nic Chemistry Communications,2017,82:68-71.
[14] Abdelhamid H N.UIO-66 as a catalyst for hydrogen production via the hydrolysis of sodium borohydride[J].Dalton Transactions,2020,49(31):10851-10857.
[15] Peterson G W,Mahle J J,Decoste J B,et al.Extraordinary NO₂ removal by the metal-organic framework UIO-66-NH₂[J].Angewandte Chemie-International Edition,2016,55(21):6235-6238.
[16] Chen C Q,Chen D Z,Xie S S,et al.Adsorption behaviors of organic micropollutants on zirconium metal-organic framework UIO-66:analysis of surface interactions[J].ACS Applied Materials & Interfaces,2017,9(46):41043-41054.
[17] Kristoffersen K A,Van Amerongen A,Böcker U,et al.Fourier-transform infrared spectroscopy for monitoring proteolytic reactions using dry-films treated with trifluoroacetic acid[J].Scientific Reports,2020,10(1):7844.
[18] Lu G,Cui C,Zhang W,et al.Synthesis and self-assembly of monodispersed metal-organic framework microcrystals[J].Chemistry-An Asian Journal,2013,8(1):69-72.
[19] Peng M M,You D,Shi H,et al.Disclosing the role of defective UIO-66 over Sb(v) removal:a joint experimental and theoretical study[J].Chemical Engineering Journal,2022,448:137612.
[20] Yang L,Liu T J,Li Z,et al.Adsorption of la onto trifluoroacetic acid modified UIO-66-COOH:adsorption mechanism and application[J].Materials Chemistry and Physics,2023,301:127535.
[21] Ou R,Zhu W J,Li L L,et al.Boosted capture of volatile organic compounds in adsorption capacity and selectivity by rationally exploiting defect-engineering of UIO-66(Zr)[J].Se-paration and Purification Technology,2021,266:118087.
[22] Shi X Y,Zhang X D,Bi F K,et al.Effective toluene adsorption over defective UIO-66-NH₂:an experimental and computational exploration[J].Journal of Molecular Liquids,2020,316:113812.
[23] Phadungbut P,Do D D,Nicholson D.Undulation theory and analysis of capillary condensation in cylindrical and spherical pores[J].Journal of Physical Chemistry C,2015,119(35):20433-20445.
[24] Britt D,Tranchemontagne D,Yaghi O M.Metal-organic frameworks with high capacity and selectivity for harmful gases[J].Proceedings of the National Academy of Sciences,2008,105(33):11623-11627.
[25] Wang D,Wu G,Zhao Y,et al.Study on the copper(Ⅱ)-doped MIL-101(Cr) and its performance in vocs adsorption[J].Environmental Science and Pollution Research,2018,25(28):28109-28119.
[26] Vikrant K,Qu Y,Szulejko J E,et al.Utilization of metal-organic frameworks for the adsorptive removal of an aliphatic aldehyde mixture in the gas phase[J].Nanoscale,2020,12(15):8330-8343.
[27] Kim B,Lee Y R,Kim H Y,et al.Adsorption of volatile orga-nic compounds over MIL-125-NH₂[J].Polyhedron,2018,154:343-349.
[28] An Y,Fu Q,Zhang D,et al.Performance evaluation of activated carbon with different pore sizes and functional groups for VOC adsorption by molecular simulation[J].Chemosphere,2019,227:9-16.
[29] Huang M C,Chou C H,Teng H.Pore-size effects on activated-carbon capacities for volatile organic compound adsorption[J].AIChE Journal,2002,48(8):1804-1810.
[30] Lillo-Ródenas M,Cazorla-Amorós D,Linares-Solano A.Behaviour of activated carbons with different pore size distributions and surface oxygen groups for benzene and toluene adsorption at low concentrations[J].Carbon,2005,43(8):1758-1767.
[31] Romero D,Chlala D,Labaki M,et al.Removal of toluene over nax zeolite exchanged with Cu²⁺[J].Catalysts,2015,5(3):1479-1497.
[32] Zhao Z X,Wang S,Yang Y,et al.Competitive adsorption and selectivity of benzene and water vapor on the microporous metal organic frameworks (HKUST-1)[J].Chemical Engineering Journal,2015,259:79-89.
[33] Zhang X D,Shi X Y,Chen J F,et al.The preparation of defective UIO-66 metal organic framework using MOF-5 as structural modifier with high sorption capacity for gaseous toluene[J].Journal of Environmental Chemical Engineering,2019,7(5):103405.