金属有机凝胶材料(MOGs)作为一类三维网络多孔材料,因其大比表面积、可调孔隙及结构多功能等特性,被广泛应用于吸附、光催化降解等废水处理过程。详细介绍了MOGs对含有重金属离子[如U(Ⅵ)、As(Ⅴ)]、染料(如甲基橙、刚果红)和四环素类抗生素(如盐酸金霉素、盐酸氯四环素)等物质的废水处理应用研究和作用机制。MOGs在废水处理中的应用前景广阔,但其大规模应用仍面临材料成本高、复杂水质下稳定性不足及工业化制备技术不成熟等挑战。未来研究需聚焦低成本合成工艺、表面改性增强及复合体系协同机制优化等方面的研究,积极推动MOGs从实验室研究走向工业化应用,为我国废水高效治理提供新方案。
As a class of three-dimensional (3D) porous network materials,metal-organic gels (MOGs) are extensively employed in wastewater treatment processes such as adsorption and photocatalytic degradation owing to their distinct properties including large specific surface area,tunable porosity,and structural multifunctionality.This paper elaborated on the application research and action mechanisms of MOGs in treating wastewater contaminated with heavy metal ions [e.g.,U(Ⅵ),As(Ⅴ)],dyes (e.g.,methyl orange,Congo red),and tetracycline antibiotics (e.g.,chlortetracycline hydrochloride,aureomycin hydrochloride).Despite their broad application prospects in wastewater treatment,MOGs still face challenges in large-scale implementation,such as high material costs,insufficient stability under complex water conditions,and immature industrial preparation technologies.Future research should focus on the development of low-cost synthesis processes,enhancement of surface modification,and optimization of the synergistic mechanism in composite systems.These efforts will actively facilitate the translation of MOGs from laboratory research to industrial applications,thereby providing a novel strategy for the efficient treatment of wastewater in China.
[1] Shannon M A,Bohn P W,Elimelech M,et al.Science and technology for water purification in the coming decades[J].Nature,2008,452(7185):301-310.
[2] Yang X H,Chen L,He G Y,et al.Chitosan-loaded coconut fiber for highly-enhanced heavy metal adsorption from wastewater[J].Separation and Purification Technology,2025,368:133105.
[3] Wang T T,Wang Z W,Shi J X,et al.A green sulfidated micro zero-valent iron based-hydrogel for the synergistic removal of heavy metal cations and anions in groundwater[J].Science of the Total Environment,2025,972:179096.
[4] Katubi K M,Siddique S,Aldhafeeri T R,et al.Vanadium doped copper oxide and its composite with mxene for effective degradation of organic pollutants[J].Journal of Alloys and Compounds,2025,1026:180431.
[5] Lakshmikandan M,Wen H Y,Qiao R H,et al.Efficient biodegradation of elevated di-n-butyl phthalate levels by microalga coelastrella terrestris MLUN1 and its post-treatment potential[J].Journal of Water Process Engineering,2025,73:107694.
[6] Zheng N N,Hu W,Liu Y,et al.Phycospheric bacteria limits the effect of nitrogen and phosphorus imbalance on diatom bloom[J].Science of the Total Environment,2024,935:173477.
[7] Liu D,Zhang C X,Yan N X,et al.Eutrophication exacerbated organic pollution in lakes across China during the 1980s-2010s[J].Water Research,2025,268:122782.
[8] Hawar J S H,Qader A F,Omer R A,et al.Magnetic nanoparticles for efficient heavy metal removal:synthesis,adsorption capacity,and key experimental parameters[J].Reviews in Inorganic Chemistry,2025,45(3):587-596.
[9] Kang Y Y,Wang Y L,Chen Y Y,et al.Fluorinated/sulfonated dual-functional three-component covalent organic polymer for adsorption of fluoroquinolones:preparation,adsorption performance and mechanism[J].Separation and Purification Technology,2025,354:128763.
[10] Yuan H,Li J X,Wang H H,et al.The compound Bacillus and sea purslane (Sesuvium portulacastrum) enhanced aquaculture wastewater treatment efficiency:insights from a study on microbial community distributions[J].Aquaculture,2025,605:742514.
[11] Hu H C,Lu W X,Li S P,et al.Hydrogel-based materials for microbial/enzyme immobilization:advanced applications in wastewater treatment[J].Chemical Engineering Journal,2025,511:161878.
[12] Qin H H,Zhu J F,Li Q J,et al.Sustainable treatment of nitrophenol wastewater through combined electrochemical redox and biological processes[J].Chemical Engineering Journal,2025,512:162602.
[13] Wang P,An G Y,Carra I,et al.Removal of perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) by coagulation:influence of coagulant and dosing conditions[J].Separation and Purification Technology,2025,355:129562.
[14] Chen J L,Huang S R,Zheng S Y,et al.Fucoidan enhances polyaluminium chloride coagulation system removal of polypropylene microplastics:performance and mechanism[J].Journal of Environmental Chemical Engineering,2025,13(4):117325.
[15] He S,Zhu J Q,Tang J Y,et al.Monolithic Co-doped UiO-66-OH metal-organic gels for removal of tetracycline from water[J].Journal of Environmental Chemical Engineering,2025,13(5):117531.
[16] Liu G,Li S W,Shi C Y,et al.Progress in research and application of metal-organic gels:a review[J].Nanomaterials,2023,13(7):1178.
[17] Li L,Xiang S L,Cao S Q,et al.A synthetic route to ultralight hierarchically micro/mesoporous Al(Ⅲ)-carboxylate metal-organic aerogels[J].Nature Communications,2013,4(1):1774.
[18] Gao Y W,Liu Z,Li Y X,et al.Three-in-one multifunctional luminescent metal-organic gels/sodium alginate beads for high-performance adsorption and detection of chlortetracycline hydrochloride,and high-security anti-counterfeiting[J].Chemical Engineering Journal,2023,452:139194.
[19] Wang L H,Ke F,Zhu J F.Metal-organic gel templated synthesis of magnetic porous carbon for highly efficient removal of organic dyes[J].Dalton Trans,2016,45(11):4541-4547.
[20] Fang Y,Ren G J,Ma Y,et al.Adsorption and reutilization of Pb(Ⅱ) based on acid-resistant metal-organic gel[J].Separation and Purification Technology,2022,295:121253.
[21] He S,Zhu J Q,Sheng H L,et al.Hierarchically porous UiO-67-bpy metal-organic gels for efficient tetracycline removal[J].Environmental Research,2025,285:122702.
[22] Roy M,Adhikary A,Saha S,et al.Toxic metal-organic gels using a unique pyridine-pyrazole based ligand with Pb(Ⅱ),Cd(Ⅱ) and Hg(Ⅱ) salts:multi-stimuli responsiveness and toxic dye adsorption[J].Materials Advances,2022,3(19):7328-7338.
[23] Jin H,Xu X Y,Yu X Y,et al.Bimetallic organic gel for effective methyl orange dye adsorption[J].Gels,2024,10(3):208.
[24] Liu G,Liu Z,Li S W,et al.Aluminum copper bimetallic metal organic gels/sodium alginate beads for efficient adsorption of ciprofloxacin and methylene blue:adsorption isotherm,kinetic and mechanism studies[J].Process Safety and Environmental Protection,2023,176:763-775.
[25] Lyu F H,Li C C,Li Y,et al.Advance in applications of metal-organic gel[J].Chinese Journal of Analytical Chemistry,2023,51(2):160-171.
[26] Vardhan K H,Kumar P S,Panda R C.A review on heavy metal pollution,toxicity and remedial measures:current trends and future perspectives[J].Journal of Molecular Liquids,2019,290:111197.
[27] Yang N C,Liu X X,Cai Y R,et al.Selective removal of highly toxic selenite by a biobased zirconium-polyphenolic supramolecular gel[J].Inorganic Chemistry,2025,64(1):545-553.
[28] Zhou Q,Peng D L,Ren G J,et al.Amide-functionalized MOG for effective adsorption of U(Ⅵ) and Pb(Ⅱ) from nuclear wastewater[J].Rare Metales,2024,43(12):6781-6790.
[29] Zhang B C,Zhang J J,Zhang Y,et al.Ce(Ⅳ)-based metal-organic gel for ultrafast removal of trace arsenate from water[J].Langmuir:the ACS Journal of Surfaces and Colloids,2023,39(31):10892-10903.
[30] Li H M,Ye M X,Zhang X,et al.Hierarchical porous iron metal-organic gel/bacterial cellulose aerogel:ultrafast,scalable,room-temperature aqueous synthesis and efficient arsenate removal[J].ACS Applied Materials & Interfaces Journal,2021,13(40):47684-47695.
[31] Uddin M J,Ampiaw R E,Lee W.Adsorptive removal of dyes from wastewater using a metal-organic framework:a review[J].Chemosphere,2021,284:131314.
[32] Yao H,You X M,Lin Q,et al.Multi-stimuli responsive metal-organic gel of benzimidazol-based ligands with lead nitrate and their use in removal of dyes from waste-water[J].Chinese Chemical Letters,2013,24(8):703-706.
[33] Wang M T,Day S Y,Wu Z K,et al.A new type of porous Zn(Ⅱ) metal-organic gel designed for effective adsorption to methyl orange dye[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2021,628:127335.
[34] Liu M J,Chen Z W,Wang Y X,et al.Ultra-high adsorptive performance towards dye remediation under high salinity conditions by binary MOG adsorbents via sustainable green fabrication strategy[J].Separation and Purification Technology,2025,378:134597.
[35] 邓志华,刘蕊,李碧青.不同生物炭的制备及其对重金属和抗生素的吸附性能[J].工业水处理,2025,45(1):94-103.
[36] Xu L Y,Zhang H,Xiong P,et al.Occurrence,fate,and risk assessment of typical tetracycline antibiotics in the aquatic environment:a review[J].Science of the Total Environment,2021,753:141975.
[37] Wang Y Q,Gao Y W,Gu J H,et al.Comprehensive insight into adsorption of chlortetracycline hydrochloride by room-temperature synthesized water-stable Zr-based metal-organic gel/sodium alginate beads[J].Environmental Research,2023,232:116339.
[38] Hu C Y,Guo W,Zhen S J,et al.Bimetallic Ag/Fe-MOG derived flake-like Ag2O/Fe2O3 p-n heterojunction for efficient photodegradation organic pollutants within a wide pH range[J].Journal of Environmental Management,2024,366:121686.
[39] 郭湾,胡聪意,甄淑君,等.铁基金属有机凝胶衍生的三氧化二铁纳米片用于光芬顿降解罗丹明B[J].化学学报,2022,80(12):1583-1591.
[40] Liu M J,Zou D L,Ma T G,et al.Simultaneous efficient adsorption and accelerated photocatalytic degradation of chlortetracycline hydrochloride over novel Fe-based MOGs under visible light irradiation assisted by hydrogen peroxide[J].Inorganic Chemistry Frontiers,2019,6,1388-1397.
[41] Gao Y W,Li Y X,Zou D L.Unraveling the synergistic effect of adsorption-photocatalysis in magnetically recyclable Fe3O4/metal-organic gels/sodium alginate beads for chlortetracycline hydrochloride elimination[J].Chemical Engineering Journal,2024,480:148049.
基金资助
新疆生产建设兵团财政科技计划项目(2022DB025)
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