2024 05 v.40 412-420
磁性载镧纳米复合材料对水体中磷酸盐的吸附性能研究
基金项目(Foundation):
国家自然科学基金项目(基金号52160001);;
江西省杰出青年基金项目(基金号20224ACB213009)
邮箱(Email):
48158821@qq.com;pengxiaoming70@126.com;
DOI:
10.16026/j.cnki.iea.2024050412
中文作者单位:
江西中煤建设集团有限公司;江西中煤城乡控股集团有限公司;江西省灌溉排水发展中心;华东交通大学土木建筑学院;
摘要(Abstract):
磷营养盐富集容易引起水体富营养化现象，不仅造成景观水体功能性缺失，对人类健康也造成潜在的威胁。由于稀土元素可高效吸附去除水体中磷等无机污染物，本研究拟以Fe_3O_4/C作为前驱体，采用水热法制备了La(OH)_3/Fe_3O_4/C磁性纳米材料，分析其吸附剂用量、pH、共存离子、吸附动力学、傅里叶红外光谱(FTIR)、X射线光电子能谱(XPS)等，并研究其控制模拟景观水体中磷营养盐含量的能力。结果表明La(OH)_3/Fe_3O_4/C对磷的静态吸附容量高达88.27 mg/g，吸附过程符合准二级动力学模型；溶液p H值在3～7时其具有较好的吸附效果，在共存离子竞争下对磷酸盐表现出良好的选择性。La(OH)_3/Fe_3O_4/C纳米复合材料可作为吸附污染水体中磷酸盐的潜在材料，对景观水体水质控制及富营养化防治具有重要的实用价值和理论意义。
关键词(KeyWords):
景观水体;;磷酸盐;;镧;;水体富营养化;;生物炭;;吸附机理
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参考文献
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2 Wilfert P, Kumar P S, Korving L, Witkamp G J, Van L M. The relevance of phosphorus and iron chemistry to the recovery of phosphorus from wastewater:a review[J]. Environmental Science&Technology, 2015, 49(16):9400-9414.
3 孔令超.矿物基复合材料对水中磷酸盐的吸附效能与机制[D].哈尔滨:哈尔滨工业大学,2021.
4 Rittmann B E, Mayer B, Westerhoff P, Edwards M. Capturing the lost phosphorus[J]. Chemosphere, 2011, 84(6):846-853.
5 He Y H, Lin H, Dong Y B. Preferable adsorption of phosphateusing lanthanum-incorporated porous zeolite:characteristics and mechanism[J]. Applied Surface Science, 2017,426:995-1004.
6 车丽君.镧改性磁性纳米复合材料的制备及吸附除磷性能的研究[D].重庆:重庆大学, 2019.
7 Lai L, Xie Q, Chi L, Gu W,Wu D. Adsorption of phosphate from water by easily separable Fe3O4@SiO2 core/shell magnetic nanoparticles functionalized with hydrous lanthanum oxide[J]. Journal of Colloid and Interface Science, 2016, 465:76-82.
8 Wu R S S, Lam K H, Lee J M N, Lau T C. Removal of phosphate from water by a highly selective La(III)-chelex resin[J]. Chemosphere, 2007, 69(2):289-294.
9 Li X, Kuang Y, Chen J, Wu D. Competitive adsorption of phosphate and dissolved organic carbon on lanthanum modified zeolite[J]. Journal of Colloid&Interface Ence, 2020,574:197-206.
10 Zhang X, Lin X, He Y, Chen Y,Zhou J,Luo X G. Adsorption of phosphorus from slaughterhouse wastewater by carboxymethyl konjac glucomannan loaded with lanthanum[J]. International Journal of Macromolecules Biological, 2018, 119:105-115.
11 唐凯.磁性壳聚糖的制备及其对放射性废液中Th4+的吸附性能研究[D].重庆:重庆工商大学, 2020.
12 Wang J, Wu L, Li J, Tang D, Zhang G. Simultaneous and efficient removal of fluoride and phosphate by Fe-La composite:adsorption kinetics and mechanism[J]. Journal of Alloys and Compounds, 2018,753:422-432.
13 姚永连,操家顺,冯骞,薛朝霞,赵昌爽,费罗兰,赵宇杰.镧改性磁性介孔二氧化硅对磷酸盐的吸附性能研究[J].应用化工, 2018, 12(47):2555-2561.
14 Zheng J. One-step solvothermal synthesis of Fe3O4@C core-shell nanoparticles withtunable sizes[J].Nanotechnology, 2012, 23(16):165601.
15 宋冰洁,赵英,迟玉杰.磁性载镧鸡蛋壳对水中磷酸盐的吸附性能[J].精细化工, 2020, 9(37):1918-1926.
16 Liu R, Chi L, Wang X, Wang Y,Sui Y M,Xie T T,Arandiyan H. Effective and selective adsorption of phosphate from aqueous solution via trivalent-metals-based amino-MIL-101 MOFs[J]. Chemical Engineering Journal,2019, 357:159-68.
17 吴小龙,林建伟,张宏华,詹艳慧,张志斌,何思琪,俞阳,王艳,侯雨苇,韩星雨,陈海洋.物理扰动对锆改性沸石改良底泥磷吸附和钝化的影响[J].环境化学, 2019(5):1-8.
18 Fang L,Liu R,Li J,Xu C H,Huang L Z,Wang D S.Magnetite/Lanthanum hydroxide for phosphate sequestration and recovery from lake and the attenuation effects of sediment particles[J]. Water Research, 2018, 130:243.
19 李铃,莫创荣,邓冬祝,廖丹伶,曹传麒,许雪棠.La-Fe改性蛭石对水中磷酸盐的高效去除:吸附行为及内在机制[J/OL].复合材料学报, 1-11[2024-09-13].https://doi.org/10.13801/j.cnki.fhclxb.20240022.003.
基本信息:
DOI：10.16026/j.cnki.iea.2024050412
中图分类号:X52;TQ424
引用信息:
[1]张艳,陈丹,祝金波等.磁性载镧纳米复合材料对水体中磷酸盐的吸附性能研究[J].离子交换与吸附,2024,40(05):412-420.DOI:10.16026/j.cnki.iea.2024050412.
基金信息:
国家自然科学基金项目(基金号52160001);; 江西省杰出青年基金项目(基金号20224ACB213009)
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