秸秆中木质纤维素各组分的结构特性赋予其吸附重金属离子的潜力,经物理、化学或生物预处理后可显著提升吸附性能。研究表明,预处理通过增大比表面积、暴露活性位点、引入官能团等方式增强吸附能力,其机理涉及物理吸附、静电吸引、离子交换、表面络合、氧化还原及沉淀等多重作用。吸附性能受温度、pH、离子浓度等关键因素影响,优化条件可进一步提高吸附效率。综述了改性秸秆吸附重金属离子研究进展,旨在为秸秆基吸附材料的开发与应用提供参考。
The structural characteristics of lignocellulosic components within straw endow it with potential for adsorbing heavy metal ions.Physical,chemical,or biological pretreatments can significantly enhance its adsorption capacity.Research indicates that pretreatment boosts adsorption by increasing specific surface area,exposing active sites,and introducing functional groups.The underlying mechanisms involve multiple interactions including physical adsorption,electrostatic attraction,ion exchange,surface complexation,redox reactions,and precipitation.Adsorption performance is influenced by key factors including temperature,pH,and ion concentration,and optimizing these conditions can further enhance adsorption efficiency.This review summarized advances in the adsorption of heavy metal ions by modified straw,aiming to provide guidance for the development and application of straw-derived adsorbent materials.
[1] Akpomie K G,Conradie J.Advances in application of cotton-based adsorbents for heavy metals trapping,surface modifications and future perspectives[J].Ecotoxicology and Environmental Safety,2020,201:110825.
[2] 路瑶,魏贤勇,宗志敏,等.木质素的结构研究与应用[J].化学进展,2013,25(5):838-858.
[3] Li X,Li M,Pu Y,et al.Inhibitory effects of lignin on enzyma-tic hydrolysis:the role of lignin chemistry and molecular weight[J].Renewable Energy,2018,123:664-674.
[4] 刘宽庆,张以恒.木质素的生物降解和生物利用[J].合成生物学,2024,5(6):1264-1278.
[5] 田庄.纤维素降解菌株的筛选及诱变研究[D].长春:吉林大学,2010.
[6] 王梓霓.秸秆类木质纤维素生物质厌氧消化性能的优化策略[D].长春:吉林大学,2024.
[7] 张皓森,李金转,姚兆泰,等.木质纤维素降解菌及其在畜牧生产中的应用[J].饲料工业,2025,46(1):32-38.
[8] Zhang X L,Yang W H,Blasiak W.Modeling study of woody biomass:interactions of cellulose,hemicellulose,and lignin[J].Energy & Fuels,2011,25(10):4786-4795.
[9] 何水清,艾士奇,王建豪,等.木质纤维素分解复合菌系的分解特性与细菌组成多样性分析[J].江苏农业科学,2017,45(16):241-246.
[10] Lyu H,Gao B,He F,et al.Experimental and modeling investigations of ball-milled biochar for the removal of aqueous methylene blue[J].Chemical Engineering Journal,2018,335:110-119.
[11] 周定国,连海兰,周晓燕.机械粉碎处理对稻麦秸秆界面特征的影响[J].林产化学与工业,2008(1):16-22.
[12] 张欢,刘沛含,黄程程,等.蒸汽爆破预处理玉米秸秆与PBAT共混制生物基全降解塑料特性研究[J].可再生能源,2023,41(6):738-743.
[13] 张连慧,石力安,王体朋,等.蒸汽爆破过程麦秆木质纤维素的转化[J].农业工程学报,2008(10):195-199.
[14] Xiong Z,Qin Y,Ma J,et al.Pretreatment of rice straw by ultrasound-assisted Fenton process[J].Bioresource Technology,2016,227:408-411.
[15] Ma H,Liu W W,Chen X,et al.Enhanced enzymatic saccharification of rice straw by microwave pretreatment[J].Bioresource Technology,2009,100(3):1279-1284.
[16] Nadeem A,Dhinesh G,Arun G.Characterization of microwave-alkali-acid pre-treated rice straw for optimization of ethanol production via simultaneous saccharification and fermentation (SSF)[J].Energy Conversion and Management,2016,141:133-144.
[17] Chen M,Tong H,Liu H,et al.A cyclic process for enzymatic hydrolysis and fermentation of lactic acid pretreated reed[J].Industrial Crops and Products,2022,181:114848.
[18] Jönsson L J,Alriksson B,Nilvebrant N O.Bioconversion of lignocellulose:inhibitors and detoxification[J].Biotechnology for Biofuels,2013,6(1):16.
[19] Zheng Q,Zhou T,Wang Y,et al.Pretreatment of wheat straw leads to structural changes and improved enzymatic hydrolysis[J].Scientific Reports,2018,8(1):1321.
[20] Kamal R,Huang Q T,Lu H B,et al.Direct enzymatic hydrolysis of alkaline storage pretreated corn stover for lipid production by Rhodosporidium toruloides[J].Journal of Cleaner Production,2024,434:140325.
[21] Bahiru T,Chandrajit B,Partha R.Organosolv pretreatments of rice straw followed by microbial hydrolysis for efficient biofuel production[J].Renewable Energy,2020,148:923-934.
[22] Hermosilla E,Rubilar O,Schalchli H,et al.Sequential white-rot and brown-rot fungal pretreatment of wheat straw as a promising alternative for complementary mild treatments[J].Waste Management,2018,79:240-250.
[23] Lou C,Zhou Y,Yan A,et al.Extraction cellulose from corn-stalk taking advantage of pretreatment technology with immobilized enzyme[J].RSC Advances,2021,12(2):1208-1215.
[24] Chen S,Zhong M,Wang H,et al.Study on adsorption of Cu2+,Pb2+,Cd2+,and Zn2+ by the KMnO4 modified biochar derived from walnut shell[J].International Journal of Environmental Science and Technology,2022,20(2):1551-1568.
[25] 范雨竹,王媛,王林燕,等.氧化石墨烯基吸附材料去除水体中Pb(Ⅱ):制备、性能及机理[J].无机材料学报,2026,41(1):12-26.
[26] Lyu H,Gao B,He F,et al.Effects of ball milling on the physicochemical and sorptive properties of biochar:experimental observations and governing mechanisms[J].Environmental Pollution,2018,233:54-63.
[27] Fiol N,Villaescusa I,Martínez M,et al.Sorption of Pb(Ⅱ),Ni(Ⅱ),Cu(Ⅱ) and Cd(Ⅱ) from aqueous solution by olive stone waste[J].Separation and Purification Technology,2005,50(1):132-140.
[28] 董婧,孙长虹,王永刚,等.发酵秸秆吸附水中重金属离子性能研究[J].科技导报,2017,35(18):80-85.
[29] 杜兆林.河流突发铜污染应急吸附技术研究及处置决策分析[D].哈尔滨:哈尔滨工业大学,2016.
[30] Schiewer S,Balaria A.Biosorption of Pb2+ by original and protonated citrus peels:equilibrium,kinetics,and mechanism[J].Chemical Engineering Journal,2009,146(2):211-219.
[31] Fan J,Cai C,Chi H,et al.Remediation of cadmium and lead polluted soil using thiol-modified biochar[J].Journal of Ha-zardous Materials,2020,388:122037.
[32] 宋慧平.趋磁细菌对贵金属离子的选择性吸附行为及溶液中金的回收研究[D].天津:天津大学,2007.
[33] Hu H,Zhang J,Wang T,et al.Adsorption of toxic metal ion in agricultural wastewater by torrefaction biochar from bamboo shoot shell[J].Journal of Cleaner Production,2022,338:130558.
[34] Kwak J H,Islam M S,Wang S,et al.Biochar properties and lead(Ⅱ) adsorption capacity depend on feedstock type,pyrolysis temperature,and steam activation[J].Chemosphere,2019,231:393-404.
[35] 秦玉春,关晓辉,王海涛,等.浮游球衣菌对Cu2+的吸附及生物吸附机理初探[J].环境科学学报,2008(5):892-896.
[36] 王鑫宇,张曦,孟海波,等.温度对生物炭吸附重金属特性的影响研究[J].中国农业科技导报,2021,23(2):150-158.
[37] Hu J,Shao D,Chen C,et al.Removal of 1-naphthylamine from aqueous solution by multiwall carbon nanotubes/iron oxides/cyclodextrin composite[J].Journal of Hazardous Materials,2011,185(1):463-471.
[38] 王晓霞,杨涛,肖璐睿,等.稻草秸秆生物质炭对重金属Cd2+的吸附性能研究[J].环境科学学报,2021,41(7):2691-2699.
[39] Tan Z,Yuan S,Hong M,et al.Mechanism of negative surface charge formation on biochar and its effect on the fixation of soil Cd[J].Journal of Hazardous Materials,2020,384:121370.
[40] Liu Y,Wang L,Wang X,et al.Oxidative ageing of biochar and hydrochar alleviating competitive sorption of Cd(Ⅱ) and Cu(Ⅱ)[J].Science of the Total Environment,2020,725:138419.
[41] Chen X,Chen G,Chen L,et al.Adsorption of copper and zinc by biochars produced from pyrolysis of hardwood and corn straw in aqueous solution[J].Bioresource Technology,2011,102(19):8877-8884.
[42] 葛军,申星梅,吴成志,等.K+、Na+、Ca2+共存离子对活性炭吸附Cr(Ⅵ)的影响[J].环境污染与防治,2019,41(1):6-9.
[43] 梁东旭,罗春燕,周鑫,等.改性小麦壳对水溶液中Cd2+的吸附研究[J].农业环境科学学报,2015,34(12):2364-2371.
基金资助
中国科学院战略性先导项目“黑土地保护与利用科技创新工程”专项资助(XDA28110100);国家重点研发计划资助(2023YFD1701603)
PDF
