Recent advances in uranium adsorption by biomass based composite
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摘要: 在核能的开发利用中会产生大量放射性含铀废水,给生态安全和人类健康带来巨大威胁。与此同时,随着陆地铀的逐渐消耗,为保证长期充足的核燃料供应,开采海水铀势在必行。近年来,吸附法在废水铀治理及海水铀利用中备受关注。以环境友好、储量丰富、成本低廉的生物质材料加工制备性能优异、附加值高的吸附材料,是铀吸附的绿色、经济、可持续的发展策略。本文系统综述了生物质基复合材料在铀吸附应用领域的最新研究成果,详细介绍了铀吸附性能和铀吸附机制,最后对其应用前景和发展趋势进行了展望。Abstract: With the development of nuclear energy, a large amount of uranium-containing radioactive wastewater has been produced, posing a great threat to ecological safety and human health. At the same time, with the gradual depletion of terrestrial uranium, it is imperative to exploit uranium from seawater to ensure long-term sufficient supply of nuclear fuel. In recent years, the adsorption method has attracted increasing attention in the treatment of uranium-contaminated wastewater and the extraction of uranium from seawater. And it is a green, economical and sustainable development strategy for uranium adsorption to prepare high value-added biomass-based materials with excellent performance based on its eco-friendliness, abundant reserves and low cost. This review focuses on the main progress of biomass-based uranium adsorption composite materials, covering its adsorption performance and adsorption mechanism. Finally, the future prospects and research direction are proposed for better biomass-based adsorbents.
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Key words:
- biomass /
- composite materials /
- uranium /
- adsorption /
- mechanism /
- nuclear energy
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图 2 (a) 聚丙烯酸/聚乙烯亚胺(PAA/PEI)复合丝瓜络吸附剂的合成示意图[34];(b) 磷酸化壳聚糖/纤维素复合材料(CSP-CMCP)的合成示意图[37]
Figure 2. (a) Synthesis of polyacrylic acid/polyethyleneimine (PAA/PEI) modified Luffa cylindrical[34]; (b) Synthetic procedures of phosphorylated chitosan-phosphatedecorated carboxymethyl cellulose composite (CSP-CMCP)[37]
CS—Chitosan; MSP—Monosodium phosphate; STMP—Trisodium trimetaphosphate; CMC—Carboxymethyl cellulose
图 4 (a) 氧化石墨烯@聚多巴胺/壳聚糖(GO@PDA/CS)铀吸附气凝胶的制备[62];(b) ZIF-67/SAP复合凝胶的制备[66];(c)表面铀印迹石墨氮化碳/β-环糊精(IIP-g-C3N4/β-CD)复合吸附剂的制备[67]
Figure 4. (a) Pathway to fabricate the GO@Polydopamine/Chitosan (GO@PDA/CS) aerogel[62]; (b) Fabrication process of the ZIF-67/SAP composite hydrogel[66]; (c) Synthesis of ion-imprinted β-cyclodextrin modified graphitic carbon nitride polymer (IIP-g-C3N4/β-CD)[67]
表 1 单一生物质铀吸附材料及性能对比
Table 1. Uranium adsorption abilities of pure biomass materials
Category Material Condition Maximum adsorption
capacity/(mg·g−1)Ref. C0/(mg·L−1) pH (best) s/l/(g·L−1) Microbial Formaldehyde-treated Fusarium (fungus) 20-400 4.0 0.6 318.04 [11] Amidoximated Aspergillus niger (fungus) 0.2-0.8 5.0 0.05-0.35 621 [12] Yeast (fungus) 10-350 5.0 0.06-1.20 341.2 [13] Bacillus subtilis (bacteria) 10-350 5.0 0.06-1.20 512.5 [13] Chlorella (algae) 10-350 5.0 0.06-1.20 356.5 [13] Nature polymer Ultrafine cellulose nanofibers 100 6.5 0.3 167 [15] Amine-impregnated cellulose 25-350 0.1-3 2.5 56.5 [16] Chitosan beads 100-2 000 5.0 1.0 236.9 [17] Chitosan films 10~100 5.0 0.5 197.74 [18] Agroforestry waste Amidoximated wool fibers 80-1530 5.0 - 78.19 [25] Coir pith 200-800 4.5 0.025-0.2 218.3 [26] Garlic dregs 20-100 6.0 5.0 38.0 [27] Sunflower straw 10-800 5.0 2.0 251.52 [28] Grapefruit peel 50-500 5.0 2.0 140.79 [29] Notes: C0—Uranium concentration;s/l—Solid/liquid. 表 2 不同体系生物质基复合材料的铀吸附性能
Table 2. Uranium adsorption properties of biomass based composites in different systems
Category Material Condition Maximum adsorption
capacity/(mg·g−1)Ref. C0/(mg·L−1) pH (best) s/l/(g·L−1) Organics composite Cellulose/camphor soot 50-250 6.0 0.2-1.0 410 [30] Polyvinylpyrroldone/chitosan 0.3-300 5.0-8.0 1.0 167 [31] Hydroxyethyl cellulose/sodium alginate 5-150 5.0 0.5 357.1 [32] Acrylic acid/polyethyleneimine modified Luffa cylindrical 50-350 6.0 0.4 444.4 [34] Chlorella pyrenoidosa/chitosan 10-800 4.0-5.0 0.5 571 [35] Polyethylenimine/guanidyl functionalized Hemp fibers 5-400 7.0 0.4 414.93 [36] Phosphorylated chitosan/carboxymethyl cellulose 0.08 5.5-8.5 0.05 977.54 [37] Poly(amidoxime)/chitosan 2-8 6.0 5.0 1013 [22] Poly(amidoxime)/cellulose 2-16 6.0 5.0 465 [38] Spidroin/super uranyl-binding protein 2-16 6.0 20 12.33 (Natural seawater) [39] Dual-superb-uranyl binding protein 2-16 5.0 20 17.45 (Natural seawater) [40] Magnetic composite Nano-Fe3O4/aspergillus niger 2-10 7.0 0.15 60.05 [41] Polyethyleneimine/magnetic yeast 5-40 6.0 0.2 173.99 [42] Nano-Fe3O4/pseudomonas aeruginosa 30 6.0 1.4 92.483 [43] Diethylenetriamine-magnetic chitosan 10-80 3.5 0.2 62.75 [44] Tripolyphosphate-linked magnetic chitosan 80 4.5 0.4 166.7 [45] Magnetic chitosan 100 5.0 0.4 178 [46] Ion-imprinted magnetic chitosan 80 5.0 0.2-1.0 187.26 [47] Magnetic chitosan 40-140 5.0 0.6 161.3 [48] Amidoxime-magnetic chitosan 10-600 6.0 1.0 117.65 [49] Amidoxime-magnetic chitosan 5-350 4.0 0.1-0.25 405 [50] Fe@FeO/wood 100-600 4.0 - 2.08 g UO22+/g Fe@FeO [51] Magnetic carboxymethylcellulose 25-550 8.0 0.5 625 [52] Fe0@Ni0/collagen 20-260 5.0-6.0 0.2-1.0 129.5 [56] Fe0/carboxymethyl-cellulose 20-100 5.0 3.0 322.58 [57] Novel-nanomaterials Carboxymethyl-cellulose/carbon nanotubes 54 5.0 0.1-1.0 127 [58] Chitosan/graphene oxide 2-100 5.0 0.05-0.40 227.3 [60] Konjac glucomannan/graphene oxide 90 5.0 0.25 513.4 [61] Polydopamine-grapheneoxide/chitosan 10-220 5.5-7.0 0.3 415.9 [62] Phosphorylated-graphene oxide/chitosan 13.5 5.5-6.5 0.05 779.44 [63] Chitosan/graphite felt electrode 1000 - - 1523 [64] Chitosan@graphene oxide/ZIF 50 8.0 0.2 361.01 [65] Polyethyleneimine@sodium alginate/ZIF-67 10-100 8.0 0.3 480.87 [66] β-Cyclodextrin/g-C3N4 50-800 7.0-8.0 0.5 855.96 [67] Fungal hyphae/graphene/MoS2 90 6.0 0.16 275 [68] Bacterial cellulose/ MoS2-x 8-100 5.0 0.5 342 [69] Biochar composite Salophe/luffa-biochar 3-2000 5.5 0.33 833 [76] Amidoxime/starch-biochar 5-130 5.0 0.1 724.6 [77] Fe/dopamine-biochar 20 6.0-8.0 - 232.54 [78] Magnetic activated carbon/poly-dopamine/Ag 50-500 8.0 0.5 657.89 [79] -
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