生物炭理化性质对其反应活性的影响
Effect of physical and chemical properties of biochar on its reactivity
-
摘要: 生物炭作为一种富炭材料,由于其具有固碳、增强土壤肥力、促进植物生长等特性,在固碳减排及土壤改良方面的应用价值受到广泛关注.同时,生物炭具有较大的比表面积和较高的孔隙率,常被作为吸附剂用于污染物的去除.研究发现生物炭在吸附有机污染物的过程中可降解有机污染物,因此生物炭的反应活性成为近年来研究的热点.生物炭的反应活性主要由其制备过程中生成的环境持久性自由基(EPFRs)和自身的氧化还原能力贡献.生物炭的EPFRs活性与官能团种类、过渡金属含量和EPFRs种类有关,其中官能团和过渡金属通过影响EPFRs的生成及稳定从而影响EPFRs的浓度和种类,进而影响EPFRs活性,而EPFRs种类直接影响EPFRs活性.生物炭的氧化还原活性与官能团、芳香性和导电性有关,其中官能团影响氧化还原活性基团(RAMs)的生成,芳香性和导电性影响基质电导(ECBC)结构的生成及导电活性,从而影响氧化还原活性.本文总结了生物炭的反应活性机理和影响因素,旨在为生物炭处理有机物污染物等方面的应用提供理论支撑和技术参考.Abstract: Biochar, as a kind of carbonaceous material has been widely concerned due to its promising application potential in carbon emission reduction and soil amendment. On the other hand, biochar also has been intensively employed as the adsorbent, owing to its big surface area and porosity. Interestingly, it was found that biochar could degrade organic pollutants during the adsorption process. Therefore, more and more attentions have been placed on the reactivity of biochar recently. The reactivity of biochar was mainly decided by the environmental persistent free radicals (EPFRs) and redox ability, which were produced during the preparation process. Firstly, the reactivity of EPFRs was related with the type of functional groups and EPFRs, the content of transition metal. Functional groups and transition metal affected the concentration and the types of EPFRs by affecting the formation and stability of EPFRs, which in turn affected the reactivity of EPFRs. However, the types of EPFRs affected its activity directly. Secondly, the redox reactivity of biochar was related to the functional groups, aromaticity and conductivity. Among them, the functional groups affected the formation of redox active groups (RAMs), and the aromaticity and conductivity affected the formation and conductivity of matrix conductance (ECBC) structures, thereby affecting the redox activity. This review summarized the reaction activity mechanism and influencing factors of the biochar, and then to provide theoretical support and technical reference for the biochar application in the organic pollutants treatment.
-
Key words:
- biochar /
- reactivity /
- EPFRs /
- redox reactivity /
- organic contaminant degradation
-
-
[1] LEHMANN J. A handful of carbon[J]. Nature, 2007, 447(7141):143-144. [2] LEHMANN J, JOSEPH S. Biochar for environmental management:An introduction//LEHMANN J, JOSEPH S. Biochar for Environmental Management:Science and Technology[M]. London:Earthscan, 2009:1-12. [3] SKJEMSTAD J O, REICOSKY D C, WILTS A R, et al. Charcoal carbon in U.S. agricultural soils[J]. Soil Science Society of America Journal, 2002, 66(4):1249-1255. [4] ZWIETEN L V, KIMBER S, MORRIS S, et al. Effects of biochar from slow pyrolysis of papermill waste on agronomic performance and soil fertility[J]. Plant & Soil, 2010, 327(1/2):235-246. [5] LIANG, B, LEHMANN J, SOLOMON D, et al. Black carbon increases cation exchange capacity in soils[J]. Soil Science Society of America Journal, 2006, 70(5):1719-1730. [6] LEHMANN J, RILLIG M C, THIES J, et al. Biochar effects on soil biota-a review[J]. Soil Biology & Biochemistry, 2011, 43(9):1812-1836. [7] AHMAD M, RAJAPAKSHA A U, LIM J E, et al. Biochar as a sorbent for contaminant management in soil and water:A review[J]. Chemosphere, 2014, 99(3):19-33. [8] GLASER B, LEHMANN J, ZECH W. Ameliorating physical and chemical properties of highly weathered soils in the tropics with charcoal-a review[J]. Biology & Fertility of Soils, 2002, 35(4):219-230. [9] KEILUWEIT M, NICO P S, JOHNSON M G, et al. Dynamic molecular structure of plant biomass-derived black carbon (biochar)[J]. Environmental Science & Technology, 2010, 44(4):1247-1253. [10] 袁帅, 赵立欣, 孟海波, 等. 生物炭主要类型、理化性质及其研究展望[J]. 植物营养与肥料学报, 2016, 22(5):1402-1417. YUAN S, ZHAO L X, MENG H B, et al. The main types of biochar and their properties and expectative researches[J]. Journal of Plant Nutrition and Fertilizer, 2016, 22(5):1402-1417(in Chinese).
[11] LU H, ZHANG W, YANG Y, et al. Relative distribution of Pb2+ sorption mechanisms by sludge-derived biochar[J]. Water Research, 2012, 46(3):854-862. [12] GWENZI W, CHAUKURA N, NOUBACTEP C, et al. Biochar-based water treatment systems as a potential low-cost and sustainable technology for clean water provision[J]. Journal of Environmental Management, 2017, 197:732-749. [13] QAMBRANI N A, RAHMAN M M, WON S, et al. Biochar properties and eco-friendly applications for climate change mitigation, waste management, and wastewater treatment:A review[J]. Renewable and Sustainable Energy Reviews, 2017, 79:255-273. [14] TRAKAL L, KOMÁREK M, SZÁKOVÁ J, et al. Biochar application to metal-contaminated soil:Evaluating of Cd, Cu, Pb and Zn sorption behavior using single- and multi-element sorption experiment[J]. Plant Soil & Environment, 2011, 57(8):372-380. [15] JIN H P, CHOPPALA G K, BOLAN N S, et al. Biochar reduces the bioavailability and phytotoxicity of heavy metals[J]. Plant & Soil, 2011, 348(1/2):439-451. [16] INYANG M, DICKENSON E. The potential role of biochar in the removal of organic and microbial contaminants from potable and reuse water:A review[J]. Chemosphere, 2015, 134(5):232-240. [17] ZHENG H, WANG Z, ZHAO J, et al. Sorption of antibiotic sulfamethoxazole varies with biochars produced at different temperatures[J]. Environmental Pollution, 2013, 181(181C):60-67. [18] 王宁, 侯艳伟, 彭静静, 等. 生物炭吸附有机污染物的研究进展[J]. 环境化学, 2012, 31(3):287-295. WANG N, HOU Y W, PENG J J, et al. Research progess on sorption of orgnic contaminants to biochar[J]. Environmental Chemistry, 2012, 31(3):287-295(in Chinese).
[19] GOMEZ-EYLES J L, CARME Y, BARBARA B, et al. Evaluation of biochars and activated carbons for in situ remediation of sediments impacted with organics, mercury, and methylmercury[J]. Environmental Science & Technology, 2013, 47(23):13721-13729. [20] YANG J, PAN B, LI H, et al. Degradation of p-nitrophenol on biochars:Role of persistent free radicals[J]. Environmental Science & Technology, 2016, 50(2):694-700. [21] FANG G, GAO J, LIU C, et al. Key role of persistent free radicals in hydrogen peroxide activation by biochar:Implications to organic contaminant degradation[J]. Environmental Science & Technology, 2014, 48(3):1902-1910. [22] YANG J, PIGNATELLO J J, PAN B, et al. Degradation of p-nitrophenol by lignin and cellulose chars:H2O2-mediated reaction and direct reaction with the char[J]. Environmental Science & Technology, 2017, 51(16):8972-8980. [23] KLUEPFEL L, KEILUWEIT M, KLEBER M, et al. Redox properties of plant biomass-derived black carbon (biochar)[J]. Environmental Science & Technology, 2014, 48(10):5601-5611. [24] YU L, YUAN Y, TANG J, et al. Biochar as an electron shuttle for reductive dechlorination of pentachlorophenol by Geobacter sulfurreducens[J]. Scientific Reports, 2015, 5, 16221, doi:10.1038/srep16221. [25] XU X, HUANG H, ZHANG Y, et al. Biochar as both electron donor and electron shuttle for the reduction transformation of Cr(Ⅵ) during its sorption[J]. Environmental Pollution, 2019, 244:423-430. [26] LIAO S, PAN B, LI H, et al. Detecting free radicals in biochars and determining their ability to inhibit the germination and growth of corn, wheat and rice seedlings[J]. Environmental Science & Technology, 2014, 48(15):8581-8587. [27] FANG G, LIU C, GAO J, et al. Manipulation of persistent free radicals in biochar to activate persulfate for contaminant degradation[J]. Environmental Science & Technology, 2015, 49(9):5645-5653. [28] HON D N S, GLASSER W G. Effect of mechanical action on wood and fiber components[J]. Tappi, 1979, 107-110. [29] HON N S. Formation of free radicals in photoirradiated cellulose. VIII. Mechanisms[J]. Journal of Polymer Science Part A Polymer Chemistry, 1976, 14(10):2497-2512 [30] WU W, YANG M, FENG Q, et al. Chemical characterization of rice straw-derived biochar for soil amendment[J]. Biomass & Bioenergy, 2012, 47(4):268-276. [31] PENG X, YE L L, WANG C H, et al. Temperature- and duration-dependent rice straw-derived biochar:Characteristics and its effects on soil properties of an Ultisol in southern China[J]. Soil & Tillage Research, 2011, 112(2):159-166. [32] KLOSS S, ZEHETNER F, DELLANTONIO A, et al. Characterization of slow pyrolysis biochars:Effects of feedstocks and pyrolysis temperature on biochar properties[J]. Journal of Environmental Quality, 2012, 41(4):990-1000. [33] 于晓娜, 张晓帆, 李志鹏, 等. 热解温度对花生壳生物炭产率及部分理化特性的影响[J]. 河南农业大学学报, 2017, 51(1):108-114. YU X N, ZHANG X F, LI Z P, et al. Pyrolysis temperature on the peanut-shell-biochar production rate and some physical and chemical properties[J]. Journal of Henan Agricultural University, 2017, 51(1):108-114(in Chinese).
[34] KOMNITSAS K, ZAHARAKI D, PYLIOTIS I, et al. Assessment of pistachio shell biochar quality and its potential for adsorption of heavy metals[J]. Waste & Biomass Valorization, 2015, 6(5):805-816. [35] 邓金环, 郜礼阳, 周皖婉, 等.不同温度制备香根草生物炭对Cd2+的吸附特性与机制[J]. 农业环境科学学报, 2018, 37(2):340-349. DENG J H, GAO L Y, ZHOU W W, et al. Adsorption characteristics and mechanisms of Cd2+ in biochar derived from vetiver grass under different pyrolysis temperatures[J]. Journal of Agro-Environment Science, 2018, 37(2):340-349(in Chinese).
[36] CANTRELL K B, HUNT P G, UCHIMIYA M, et al. Impact of pyrolysis temperature and manure source on physicochemical characteristics of biochar[J]. Bioresource Technology, 2012, 107(2):419-428. [37] 卢欢亮, 叶向东, 汪永红, 等. 热解温度对污泥生物炭的表面特性及重金属安全性的影响[J]. 环境工程学报, 2015, 9(3):1433-1439. LU H L, YE X D, WANG Y H, et al. Effects of pyrolysis temperature on surface properties and heavy metal safety of sludge-derived biochar[J]. Chinese Journal of Environmental Engineering, 2015, 9(3):1433-1439(in Chinese).
[38] AHMAD M, LEE S S, DOU X, et al. Effects of pyrolysis temperature on soybean stover- and peanut shell-derived biochar properties and TCE adsorption in water[J]. Bioresource Technology, 2012, 118:536-544. [39] 高凯芳. 原材料和温度对生物炭的理化特性及镉吸附能力的影响研究[D]. 南昌:江西师范大学, 2016. GAO K F. Effects of raw materials and temperature on physical and chemical properties and cadmium adsorption capacity of biochar[D]. Nanchang:Jiangxi Normal University, 2016(in Chinese). [40] KLEEN M, GELLERSTEDT G. Influence of inorganic species on the formation of polysaccharide and lignin degradation products in the analytical pyrolysis of pulps[J]. Journal of Analytical & Applied Pyrolysis, 1995, 35(1):15-41. [41] FANG G, ZHU C, DIONYSIOU D D, et al. Mechanism of hydroxyl radical generation from biochar suspensions:Implications to diethyl phthalate degradation[J]. Bioresource Technology, 2015, 176:210-217. [42] ERIC V, SLAWOMIR L, BARRY, D. Formation and stabilization of combustion-generated environmentally persistent free radicals on an Fe(Ⅲ)2O3/silica surface[J]. Environmental Science & Technology, 2011, 45(2):589-594. [43] 王婷李浩郭惠莹, 等. 邻苯二酚-Fe2O3和邻苯二酚-CuO体系中持久性自由基的形成机制及特征[J]. 环境化学, 2016, 35(3):423-429. WANG T, LI H, GUO H Y, et al, The formation and characteristics of persistent free radicals in catechol-Fe2O3/silica and catechol-CuO/silica systems[J]. Environmental Chemistry, 2016, 35(3):423-429(in Chinese).
[44] YUAN H, LU T, HUANG H, et al. Influence of pyrolysis temperature on physical and chemical properties of biochar made from sewage sludge[J]. Journal of Analytical & Applied Pyrolysis, 2015, 112:284-289. [45] ZENG X, XIAO Z, ZHANG G, et al. Speciation and bioavailability of heavy metals in pyrolytic biochar of swine and goat manures[J]. Journal of Analytical & Applied Pyrolysis, 2018, 132:82-93. [46] XU S, ADHIKARI D, HUANG R, et al. Biochar-facilitated microbial reduction of hematite[J]. Environmental Science & Technology, 2016, 50(5):2389-2395. [47] KAPPLER A, HARTER J, HALAMA M, et al. Biochar as an electron shuttle between bacteria and Fe(Ⅲ) minerals[J]. Environmental Science & Technology Letters, 2014, 1(8):339-344. [48] DOMENE X, ENDERS A, HANLEY K, et al. Ecotoxicological characterization of biochars:Role of feedstock and pyrolysis temperature[J]. Science of the Total Environment, 2015, 512/513:552-561. [49] KHACHATRYAN L, VEJERANO E, LOMNICKI S, et al. Environmentally persistent free radicals (EPFRs). 1. Generation of reactive oxygen species in aqueous solutions[J]. Environmental Science & Technology, 2011, 45(19):8559-8566. [50] KHACHATRYAN L, MCFERRIN C A, HALL R W, et al. Environmentally persistent free radicals (EPFRs). 3. Free versus bound hydroxyl radicals in EPFR aqueous solutions[J]. Environmental Science & Technology, 2014, 48(16):9220-9226. [51] YIN R, GUO W, WANG H, et al. Singlet oxygen-dominated peroxydisulfate activation by sludge-derived biochar for sulfamethoxazole degradation through a nonradical oxidation pathway:Performance and mechanism[J]. Chemical Engineering Journal, 2019, 357:589-599. [52] OH S Y, SON J G, CHIU P C. Biochar-mediated reductive transformation of nitro herbicides and explosives[J]. Environmental Toxicology & Chemistry, 2013, 32(3):501-508. [53] TONG H, HU M, LI F B, et al. Biochar enhances the microbial and chemical transformation of pentachlorophenol in paddy soil[J]. Soil Biology & Biochemistry, 2014, 70(2):142-150. [54] CAYUELA M L, SÁNCHEZMONEDERO M A, ROIG A, et al. Biochar and denitrification in soils:when, how much and why does biochar reduce N2O emissions?[J]. Scientific Reports, 2013, 3, 1732, doi:10.1038/srep01732. [55] CAYUELA M L, JEFFERY S, ZWIETEN L V. The molar H:Corg ratio of biochar is a key factor in mitigating N2O emissions from soil[J]. Agriculture Ecosystems & Environment, 2015, 202:135-138. [56] OH S Y, SON J G, HUR S H, et al. Black carbon-mediated reduction of 2,4-dinitrotoluene by dithiothreitol[J]. Journal of Environmental Quality, 2013, 42(3):815-821. [57] SUN T, LEVIN B D A, GUZMAN J J L, et al. Rapid electron transfer by the carbon matrix in natural pyrogenic carbon[J]. Nature Communications, 2017, 8:14873, doi:10.1038/ncomms14873. [58] KEMPER J M, AMMAR E, MITCH W A. Abiotic degradation of hexahydro-1,3,5-trinitro-1,3,5-triazine in the presence of hydrogen sulfide and black carbon[J]. Environmental Science & Technology, 2008, 42(6):2118-2123. [59] YU X, GONG W, LIU X, et al. The use of carbon black to catalyze the reduction of nitrobenzenes by sulfides[J]. Journal of Hazardous Materials, 2011, 198(2):340-346. [60] Millerick K, Drew S R, Finneran K T. Electron shuttle-mediated biotransformation of hexahydro-1,3,5-trinitro-1,3,5-triazine adsorbed to granular activated carbon[J]. Environmental Science & Technology, 2013, 47(15):8743-8750. [61] CHEN G, ZHANG Z, ZHANG Z, et al. Redox-active reactions in denitrification provided by biochars pyrolyzed at different temperatures[J]. Science of the Total Environment, 2017, 615:1547-1556. [62] XU W, PIGNATELLO J J, MITCH W A. Role of black carbon electrical conductivity in mediating hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) transformation on carbon surfaces by sulfides[J]. Environmental Science & Technology, 2013, 47(13):7129-7136. [63] 杜锐, 覃爱苗, 韦春, 等. 生物质炭材料的制备及电化学应用研究进展[J]. 材料导报, 2014, 28(5):93-97. DU R, QIN A M, WEI C, et al. Research progress of preparation of biomass carbon and its electrochemical application[J]. Materials Review, 2014, 28(5):93-97(in Chinese).
-

计量
- 文章访问数: 2446
- HTML全文浏览数: 2446
- PDF下载数: 119
- 施引文献: 0