功能性生物炭的制备及其在重金属污染土壤修复领域应用的研究进展
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摘要
生物炭因其具有含碳量高、孔隙发达、官能团丰富等特点,被广泛应用于改良土壤、增加碳汇、修复环境污染等农业和环境保护领域。近年来,研究发现利用物理、化学或生物方法对生物炭进行改性处理制备具有新性能、新结构的功能性生物炭材料,可以显著提高其吸附能力。本文综述了制备功能性生物炭常用的化学改性处理方法,阐述了功能性生物炭与土壤重金属之间可能存在相互作用机制及功能性生物炭在土壤重金属污染修复中的应用,对功能性生物炭在土壤重金属污染领域今后的研究方向做出了展望。
Biochar is widely used in the fields of agriculture and environmental protection such as soil improvement, carbon sink increase, environmental pollution remediation because of its high carbon content, developed pores and rich functional groups, etc..In recent years, studies have found that the adsorption capacity of biochar can be significantly improved by modifying biochar through physical, chemical or biological methods to prepare functional biochar materials with new properties and new structures. This paper summarizes the common chemical modification method for preparing functional biochar, states the possible interaction mechanism between functional biochar and heavy metal in soil as well as the application of functional biochar in heavy metal contamination remediation, and makes a prospect for the future research areas of functional biochar in heavy metal contamination.
Biochar is widely used in the fields of agriculture and environmental protection such as soil improvement, carbon sink increase, environmental pollution remediation because of its high carbon content, developed pores and rich functional groups, etc..In recent years, studies have found that the adsorption capacity of biochar can be significantly improved by modifying biochar through physical, chemical or biological methods to prepare functional biochar materials with new properties and new structures. This paper summarizes the common chemical modification method for preparing functional biochar, states the possible interaction mechanism between functional biochar and heavy metal in soil as well as the application of functional biochar in heavy metal contamination remediation, and makes a prospect for the future research areas of functional biochar in heavy metal contamination.
引文
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[17] Xia Y,Liu H J,Guo Y C,et al.Immobilization of heavy metals in contaminated soils by modified hydrochar:Efficiency,risk assessment and potential mechanisms[J].Science of the Total Environment,2019,685:1201-1208.
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[21] He L Z,Zhong H,Liu G X,et al.Remediation of heavy metal contaminated soils by biochar:Mechanisms,potential risks and applications in China[J].Environmental Pollution,2019,252:846-855.
[22] Tong X,Li J,Yuan J,et al.Adsorption of Cu(II) by biochars generated from three crop straws[J].Chemical Engineering Journal,2011,172:828-834.
[23] Tan Z,Wang Y,Zhang L,et al.Study of the mechanism of remediation of Cd-contaminated soil by novel biochars[J].Environmental Science and Pollution Research,2017,24:24844-24855.
[24] Song Z,Lian F,Yu Z,et al.Synthesis and characterization of a novel MnOx-loaded biochar and its adsorption properties for Cu2+ in aqueous solution[J].Chemical Engineering Journal,2014,242:36-42.
[25] Qin P,Wang H L,Yang X,et al.Bamboo-and pig-derived biochars reduce leaching losses of dibutyl phthalate,cadmium,and lead from co-contaminated soils[J].Chemosphere,2018,198:450-459.
[26]鲁秀国,过依婷,奉向东.生物炭对土壤中重金属作用及影响研究进展[J].应用化工,2018,47(4):775-779.
[27]Bian R,Joseph S,Cui L,et al.A three-year experiment confirms continuous immobilization of cadmium and lead in contaminated paddy field with biochar amendment[J].Journal of Hazardous Materials,2014,272:121-128.
[2] 金梁,魏丹,李玉梅,等.生物炭对有机无机污染物的修复作用与机理研究[J].土壤通报,2016,47(2):505-510.
[3] Wang B,Gao B,Fang J.Recent advances in enginnered biochar productions and applications[J].Critical Reviews in Environmental Science and Technology,2017,47:2158-2207.
[4] Huff M D,Lee J W.Biochar-surface oxygenation with hydrogen peroxide[J].Journal of Environment Management,2016,165:17-21.
[5] Xue Y,Gao B,Yao Y,et al.Hydrogen peroxide modication enhances the ability of biochar (Hydrochar) produced from hydrothermal carbonization of peanut hull to remove aqueous heavy metals:Batch and column tests[J].Chemical Engineering Journal,2012,202:673-680.
[6] Wang Q,Wang B,Lee X Q,et al.Sorption and desorption of Pb(II) to biochar as affected bu oxidation and pH[J].Science of the Toal Environment,2018,634:188-194.
[7] Uchimiya M,Bannon D I,Wartelle L H.Retention of heavy metals by carboxyl functional groups of biochars in small arms range soil[J].Journal of Agricultural Food Chemistry,2012,60(7):1798-1809.
[8] Zhao T,Yao Y,Li D R,et al.Facile low-temperature one-step synthesis of pomelo peel biochar under air atmosphere and its adsorption behaviors for Ag(I) and Pb(II)[J].Science of the Total Environment,2018,640:73-79.
[9] Liu T,Gao B,Fang J,et al.Biochar-supported carbon nanotube and graphene oxide nanocomposites for Pb(II) and Cd(II) removal[J].Royal Society of Chemistry,2016,6:24314-24319.
[10] Zhou Y,Gao B,Zimmerman A R,et al.Sorption of heavy metals on chitosan-modified biochars and its biological effects[J].Chemical Engineering Journal,2013,231:512-518.
[11] Inyang M,Gao B,Zimmerman A,et al.Sorption and co-sorption of lead and sulfapyridine on carbon nanotube-modified biochars[J].Environmental Science and Pollution Research,2015,22:1868-1876.
[12] Liu Y,Yang M,Wu Y,et al.Biochar-supported carbon nanotube and graphene oxide nanocomposites for Pb(II) and Cd(II) removal.Royal Society of Chemistry,2016,6:24314-24319.
[13] Wang S,Gao b,Li Y,et al.Adsorptive removal of arsenate from aqueous solutions by biochar supported zero-valent Iron nanocomposite:Batch and continuous flow tests[J].Journal of hazardous Materials,2017,322:172-181.
[14]余劲聪,侯昌萍,何舒雅,等.壳聚糖修复重金属污染土壤的研究进展[J].土壤通报,2017,48(1):251-256.
[15] Zhou Y,Gao B,Zimmerman A R,et al.Sorption of heavy metals on chitosan-modified biochars and its biologicaleffects[J].Chemical Engineering Journal,2013,213:512-518.
[16] Agrafioti E,Kalderis D,Diamadopoulos E.Ca and Fe modified biochars as adsorbents of arsenic and chromium in aqueous solutions[J].Journal of Environmental Management,2014,146:44-50.
[17] Xia Y,Liu H J,Guo Y C,et al.Immobilization of heavy metals in contaminated soils by modified hydrochar:Efficiency,risk assessment and potential mechanisms[J].Science of the Total Environment,2019,685:1201-1208.
[18] Shen Z T,Zhang J Z,Hou D Y,et al.Synthesis of MgO-coated corncob biochar and its application in lead stabilization in a soil washing residue[J].Environment International,2019,122:357-362.
[19]杨永军.生物炭负载铁锰氧化物对铅、铜污染土壤的稳定化研究[D].咸阳:西北农林科技大学,2018.
[20]项江欣.生物炭-壳聚糖复合材料对Cd的吸附特性及对Cd污染土壤的修复效应与机理研究[D].广州:广东工业大学,2018.
[21] He L Z,Zhong H,Liu G X,et al.Remediation of heavy metal contaminated soils by biochar:Mechanisms,potential risks and applications in China[J].Environmental Pollution,2019,252:846-855.
[22] Tong X,Li J,Yuan J,et al.Adsorption of Cu(II) by biochars generated from three crop straws[J].Chemical Engineering Journal,2011,172:828-834.
[23] Tan Z,Wang Y,Zhang L,et al.Study of the mechanism of remediation of Cd-contaminated soil by novel biochars[J].Environmental Science and Pollution Research,2017,24:24844-24855.
[24] Song Z,Lian F,Yu Z,et al.Synthesis and characterization of a novel MnOx-loaded biochar and its adsorption properties for Cu2+ in aqueous solution[J].Chemical Engineering Journal,2014,242:36-42.
[25] Qin P,Wang H L,Yang X,et al.Bamboo-and pig-derived biochars reduce leaching losses of dibutyl phthalate,cadmium,and lead from co-contaminated soils[J].Chemosphere,2018,198:450-459.
[26]鲁秀国,过依婷,奉向东.生物炭对土壤中重金属作用及影响研究进展[J].应用化工,2018,47(4):775-779.
[27]Bian R,Joseph S,Cui L,et al.A three-year experiment confirms continuous immobilization of cadmium and lead in contaminated paddy field with biochar amendment[J].Journal of Hazardous Materials,2014,272:121-128.