湖南省林业科学院;湖南省气候中心;湖南神农国油生态农业发展有限公司;
以油茶壳为原料,经氯化锌活化制得活性炭,通过氨基三亚甲基膦酸(ATMP)和支状聚乙烯亚胺(PEI)改性,制备了氮、磷掺杂改性的吸附材料(AC-PEIs)。系统考察了离子种类、水相pH值、初始浓度、反应时间等对该材料吸附铅离子性能的影响。结果表明:改性后活性炭比表面积、孔体积和孔径降低,表面羟基、胺基和磷酸等官能团的数量增多,对溶液中铅离子的吸附性能提高。在吸附剂投加量为1 g/L,铅离子质量浓度为100 mg/L,pH为6,反应时间为60 min的条件下,AC-PEI-1对溶液中铅离子的去除率为98.26%,比未改性活性炭提高了1.54倍,且其吸附过程符合准二级动力学方程和Langmuir吸附等温方程。AC-PEI-1的理论最大吸附量为261.89 mg/g,约为未改性活性炭的2倍。改性活性炭对铅离子的吸附机理主要为沉淀作用、配位络合和静电吸引等,与铅离子发生沉淀作用的是活性炭表面含磷官能团。
5 | 0 | 2 |
下载次数 | 被引频次 | 阅读次数 |
[1] GURGEL L V A,GIL L F.Adsorption of Cu(II),Cd(II)and Pb(II)from aqueous single metal solutions by succinylated twice-mercerized sugarcane bagasse functionalized with triethylenetetramine[J].Water Research,2009,43(18):4479-4488.
[2] HOSSEINI S M,ALIBAKHSHI H,JASHNI E,et al.A novel layer-by-layer heterogeneous cation exchange membrane for heavy metal ions removal from water[J].Journal of Hazardous Materials,2020(381):120884.
[3] YANG S,YANG L,GAO M,et al.Synthesis of zeolite-geopolymer composites with high zeolite content for Pb(II)removal by a simple two-step method using fly ash and metakaolin[J].Journal of Cleaner Production,2022(378):134528.
[4] CHOUMANE R,PEULON S.Development of an efficient electrochemical process for removing and separating soluble Pb(II)in aqueous solutions in presence of other heavy metals:Studies of key parameters[J].Chemical Engineering Journal,2021(423):130161.
[5] LIU X J,LAI D G,WANG Y.Performance of Pb(II)removal by an activated carbon supported nanoscale zero-valent iron composite at ultralow iron content[J].Journal of Hazardous Materials,2019(361):37-48.
[6] ZHANG B L,QIU W,WANG P P,et al.Mechanism study about the adsorption of Pb(II)and Cd(II)with irontrimesicmetal-organic frameworks[J].Chemical Engineering Journal,2020(385):123507.
[7]梁先跃,胡传双,涂登云,等.油茶果壳生物基材料研究进展及展望[J].林产工业,2024,61(05):60-69.
[8]王杨,王铎宇,王欣.硝酸改性沙柳纤维状活性炭的制备及其吸附性能研究[J].林产工业, 2023,60(03):8-14.
[9] XIE X W,XIE Y H,ZUO K X,et al.Nanosized lanthanum peroxideloaded biochar composites for simple and effective glyphosate removal from wastewater:Behavior and mechanisms[J].Journal of Cleaner Production,2024,447:141451.
[10] FAN Y H,WANG H,DENG L Y,et al.Enhanced adsorption of Pb(II)by nitrogen and phosphorus co-doped biochar derived from Camellia oleifera shells[J].Environmental Research,2020(191):110030.
[11] ZHAO T,MA X,CAI H,et al.Study on the adsorption of CuFe2O4-loaded corncob biochar for Pb(II)[J].Molecules,2020,25(15):3456.
[12] QU J H,LIU Y,CHENG L,et al.Green synthesis of hydrophilic activated carbon supported sulfide nZVI for enhanced Pb(II)scavenging from water:Characterization, kinetics,isotherms and mechanisms[J].Journal of Hazardous Materials,2020(403):123607.
[13] SU X,CHEN Y,LI Y,et al.Enhanced adsorption of aqueous Pb(II)and Cu(II)by biochar loaded with layered double hydroxide:Crucial role of mineral precipitation[J].Journal of Molecular Liquids,2022(357):1190.
[14] ZHU H S,TAN X L,TAN L Q,et al.Biochar derived from sawdust embedded with molybdenum disulfide for highly selective removal of Pb2+[J].ACS Applied Nano Materials,2018(01):2689-2698.
[15] TATY-COSTODES V C,FAUDUET H,PORTE C,et al.Removal of Cd(II)and Pb(II)Ions, from Aqueous Solutions,by Adsorption onto Sawdust of Pinus sylvestris[J].Journal of Hazardous Materials,2003(105):121-142.
[16] LIU L Q,HUANG Y J,ZHANG S P,et al.Adsorption characteristics and mechanism of Pb(II)by agricultural waste-derived biochars produced from a pilot-scale pyrolysis system[J].Waste Management,2019(100):287-295.
[17] LAGERGREN S.About the theory of so-called adsorption of soluble substances.Kungliga Svenska Vetenskapsakademiens Handlingar,1898,24:1-39.
[18] WU J W,WANG T,ZHANG,Y S,et al.The distribution of Pb(II)/Cd(II)adsorption mechanisms on biochars from aqueous solution:Considering the increased oxygen functional groups by HCl treatment[J].Bioresource Technology,2019(291):121859.
[19] LU H L,ZHANG W H,YANG Y X,et al.Relative distribution of Pb2+sorption mechanisms by sludge-derived biochar[J].Water Research,2012,46(03):854-862.
[20] LIAN Q Y,AHMAD Z U,GANG D D C,et al.The effects of carbon disulfide driven functionalization on graphene oxide for enhanced Pb(II)adsorption:Investigation of adsorption mechanism[J].Chemosphere,2020(248):126078.
[21] ELAIGWU S E,ROCHER V,KYRIAKOU G,et al.Removal of Pb2+and Cd2+from aqueous solution using chars from pyrolysis and microwaveassisted hydrothermal carbonization of Prosopis africana shell[J].Journal of Industrial and Engineering Chemistry,2014(20):3467-3473.
[22] ZHOU N,CHEN,H G,XI J T,et al.Biochars with excellent Pb(II)adsorption property produced from fresh and dehydrated banana peels via hydrothermal carbonization[J].Bioresource Technology,2017(232):204-210.
[23] LI X S,ZHAO Z L,WANG Y H,et al.Highly efficient flame retardant,flexible,and strong adhesive intumescent coating on polypropylene using hyperbranchedpolyamide[J].Chemical Engineering Journal,2017(324):237-250.
[24] ZHAO Z L,JIN Q,ZHANG,N E,et al.Preparation of a novel polysiloxane and its synergistic effect with ammonium polyphosphate on the flame retardancy ofpolypropylene[J].Polymer Degradation and Stability,2018(150):73-85.
[25] CHEN H Y,LI W Y,WANG J J,et al.Adsorption of cadmium and lead ions by phosphoric acid-modified biochar generated from chicken feather:selective adsorption and influence of dissolved organic matter[J].Bioresource Technology,2019(292):121948.
[26] ABDEL-SAMAD H,WASTON P R.An XPS study of the adsorption of lead on goethiteα-FeOOH[J].Applied Surface Science,1998(136):46-54.
[27] FEN Y W,YUNUS W M M,TALIB Z A.Analysis of Pb(II)ion sensing by crosslinked chitosan thin film using surface plasmon resonance spectroscopy[J].Optik-International Journal for Light and Electron Optics,2013(124):126-133.
[28]韩玉杰,肖佳.木材产业绿色低碳发展路径浅析[J].森林防火,2024,42(02):106-109.
[29]孙彦君,王秀梅,郭小宁.水中可吸附卤素测定技术的方法验证[J].森林防火,2023,41(01):90-93.
基本信息:
DOI:10.19531/j.issn1001-5299.202505008
中图分类号:TQ424.1;X703
引用信息:
[1]范友华,康地,彭邵锋等.氮磷掺杂改性活性炭对水中铅离子的吸附性能研究[J].林产工业,2025,62(05):45-53.DOI:10.19531/j.issn1001-5299.202505008.
基金信息:
湖南神农国油油茶产业科技创新创业团队(湘人才发[2022]9号)