南京大学学报(自然科学版) ›› 2017, Vol. 53 ›› Issue (2): 245.
李 永1,2,王 菲1,刘 颖1,茅丹俊1,何 欢1,杨绍贵1,孙 成1*
Li Yong1,2,Wang Fei1,Liu Ying1,Mao Danjun1,He Huan1,Yang Shaogui1,Sun Cheng1*
摘要: 土壤或底泥对水体有机污染物的吸附是其重要的环境过程.选取了长三角代表性土壤进行了三苯甲烷类染料结晶紫(CV)的吸附实验,研究了初始pH、离子强度、天然有机质(NOM)、温度和搅动强度对土壤吸附结晶紫的影响.结果表明,随着pH增加,染料吸附量增加.离子强度对结晶紫吸附过程有一定的影响,而Ca2+的竞争较强,对CV吸附的影响较大.NOM和土壤对染料阳离子的竞争导致了吸附量的降低,可能是NOM与CV发生螯合或络合反应.结晶紫在土壤上吸附的假二级动力学模型的相关系数(R2=0.991)高于假一级动力学模型(R2=0.977).土壤对结晶紫的吸附更符合Langmuir等温线(R2=0.999).单层吸附容量qm为58.8 mg·g-1(25 ℃),吸附过程单层吸附比多层吸附更加重要.热动力学参数ΔG0数值为负确定了吸附过程的自发性.
[1] Wikipedia.Crystal violet.https://en.wikipedia.org/wiki/Crystal_violet. [2] Au W,Pathak S,Collie C J,et al.Cytogenetic toxicity of gentian violet and crystal violet on mammalian cells in vitro.Mutation Research/Genetic Toxicology,1978,58(2-3):269-276. [3] Littlefield N A,Blackwell B N,Hewitt C C,et al.Chronic toxicity and carcinogenicity studies of gentian violet in mice.Fundamental and Applied Toxicology,1985,5(5):902-912. [4] Love D C,Rodman S,Neff R A,et al.Veterinary drug residues in seafood inspected by the European Union,United States,Canada,and Japan from 2000 to 2009.Environmental Science & Technology,2011,45(17):7232-7240. [5] Chen G,Miao S.HPLC determination and MS confirmation of malachite green,gentian violet,and their leuco metabolite residues in channel catfish muscle.Journal of Agricultural and Food Chemistry.2010,58(12):7109-7114. [6] Zhang H,Gao H,Cai C,et al.Decolorization of crystal violet by ultrasound/heterogeneous Fenton process.Water Sciences and Technology.2013,68(11):2515-2520. [7] Fan H J,Huang S T,Chun W H,et al.Degradation pathways of crystal violet by Fenton and Fenton-like systems:condition optimization and intermediate separation and identification.Journal of Hazardous Materials.2009,171(1-3):1032-1044. [8] Fu J,Kyzas G Z.Wet air oxidation for the decolorization of dye wastewater:An overview of the last two decades.Chinese Journal of Catalysis.2014.35(1):1-7. [9] Fan H J,Lu C S,Lee W L W,et al.Mechanistic pathways differences between P25-TiO(2)and Pt-TiO(2)mediated CV photodegradation.Journal of Hazardous Materials.2011,185(1):227-235. [10] Torres-Martinez L M,Moctezuma E,Ruiz-Gómez M A,et al.Sol-gel synthesis of Sm2InTaO7 and its photocatalytic activity on degradation of crystal violet dye and reduction of Cr(VI)ions.Research on Chemical Intermediates.2013,39(4):1533-1544. [11] Palma-Goyes R E,Guzmán-Duque F L,Peñuela G,et al.Electrochemical degradation of crystal violet with BDD electrodes:Effect of electrochemical parameters and identification of organic by-products.Chemosphere,2010,81(1):26-32. [12] Durango-Usuga P,Guzmán-Duque F,Mosteo R,et al.Experimental design approach applied to the elimination of crystal violet in water by electrocoagulation with Fe or Al electrodes.Journal of Hazardous Materials.2010,179(1):120-126. [13] Chen C Y,Kuo J T,Yang H A,et al.A coupled biological and photocatalysis pretreatment system for the removal of crystal violet from wastewater.Chemosphere,2013,92(6):695-701. [14] Chen C H,Chang C F,Ho C H,et al.Biodegradation of crystal violet by a Shewanella sp.NTOU1.Chemosphere,2008,72(11):1712-20. [15] Jiang Y R,Lin H P,Chung W H,et al.Controlled hydrothermal synthesis of BiOxCly/BiOmIn composites exhibiting visible-light photocatalytic degradation of crystal violet.Journal of Hazardous Materials,2015,283:787-805. [16] Ameen S,Akhtar M S,Nazim M,et al.Rapid photocatalytic degradation of crystal violet dye over ZnO flower nanomaterials.Materials Letters,2013,96:228-232. [17] Natarajan K,Natarajan T S,Bajaj H C,et al.Photocatalytic reactor based on UV-LED/TiO2 coated quartz tube for degradation of dyes.Chemical Engineering Journal,2011,178:40-49. [18] Yagub M T,Sen T K,Afroze S,et al.Dye and its removal from aqueous solution by adsorption:A review.Advances in Colloid and Interface Science.2014,209:172-84. [19] Ahmad R.Studies on adsorption of crystal violet dye from aqueous solution onto coniferous pinus bark powder(CPBP).Journal of Hazardous Materials.2009,171(1-3):767-773. [20] Pérez-Estrada L A,Agüera A,Hernando M D,et al.Photodegradation of malachite green under natural sunlight irradiation:kinetic and toxicity of the transformation products.Chemosphere,2008,70(11):2068-2075. [21] 张彤晴,周 刚,林 海等.孔雀石绿溶液水体自然降解初步研究.江苏农业科学,2007(1):211-214.(Zhang T Q,Zhou G,Lin H,et al.Natural degradation of malachite green in aqueous solution.Jiangsu Agricultural Sciences,2007(1):211-214.) [22] Guo Y,Yang S,Fu W,et al.Adsorption of malachite green on micro-and mesoporous rice husk-based active carbon.Dyes and Pigments,2003,56(3):219-229. [23] Zhang L,Zhang H,Guo W,et al.Removal of malachite green and crystal violet cationic dyes from aqueous solution using activated sintering process red mud.Applied Clay Science,2014,93:85-93. [24] Mishra R R,Chandran P,Khan S S.Equilibrium and kinetic studies on adsorptive removal of malachite green by the citrate-stabilized magnetite nanoparticles.RSC Advances,2014,4(93):51787-51793. [25] Zhang H,Tang Y,Liu X,et al.Improved adsorptive capacity of pine wood decayed by fungi Poria cocos for removal of malachite green from aqueous solutions.Desalination,2011,274(1):97-104. [26] Garg V K,Kumar R,Gupta R.Removal of malachite green dye from aqueous solution by adsorption using agro-industry waste:a case study of Prosopis cineraria.Dyes and Pigments,2004,62(1):1-10. [27] Saha P,Chowdhury S,Gupta S,et al.Insight into adsorption equilibrium,kinetics and thermodynamics of Malachite Green onto clayey soil of Indian origin.Chemical Engineering Journal,2010,165(3):874-882. [28] Fil B A.Isotherm,kinetic and thermodynamic studies on the adsorption behavior of malachite green dye onto Montmorillonite clay.Particulate Science and Technology,2016,34(1):118-126. [29] 李乐勇,王毅力,廖柏寒.官厅水库底泥对染料的吸附特征研究.安全与环境学报,2006.6(1):91-95.(Li L Y,Wang Y L,Liao B H.Adsorption properties of dye compounds on the sediments in Guanting Reservoir.Journal of Safety and Environment,2006,6(1):91-95.) [30] 刘兴民,刘瑞霞,汤鸿霄等.不同染料化合物在河流底泥上的吸附规律.环境科学,2002,23(1):45-49.(Liu X M,Liu R X,Tang H X,et al.Adsorption properties of dye compounds on the sediments in Qinghe.Environmental Science,2002,23(1):45-49.) [31] 余纯丽,任建敏,胡 然.膨润土吸附结晶紫的动力学与热力学研究.西南大学学报:自然科学版,2009,31(6):165-168.(Yu C L,Ren J M,Hu R.Thermodynamics and kinetics of adsorption of crystal violet by Bentonite.Journal of Southwest University:Natural Science Edition,2009,31(6):165-168.) [32] 胡志勇,何少华,尹 萌等.天然泥炭对水中结晶紫的吸附行为.江苏化工,2008,36(1):24-27.(Hu Z Y,He S H,Yin M,et al.Adsoption of crystal violet in aqueous solution by natural peat.Jiangsu Chemcial Industry,2008,36(1):24-27.) [33] 郝艳玲,王 远,董良宇等.坡缕石粘土对有机染料的吸附热力学研究.岩石矿物学杂志,2009,28(6):661-664.(Hao Y L,Wang Y,Dong L Y,et al.A thermodynamics study of the adsorption of organic dyes on palygorskite clay.Acta Petrologica Et Mineralogica,2009,28(6):661-664.) [34] 王清萍,施秀兰,金晓英等.赤泥吸附结晶紫的研究.福建师范大学学报:自然科学版,2010,26(2):72-77.(Wang Q P,Shi X L,Jin X Y,et al.Experimental study on adsorption of crystal violet by red mud.Journal of Fujian Normal University:Natural Science Edition,2010,26(2):72-77.) [35] Kismir Y,Aroguz A Z.Adsorption characteristics of the hazardous dye Brilliant Green on Saklikent mud.Chemical Engineering Journal,2011,172(1):199-206. [36] Bulut E,Ozacar M,Sengil I A.Adsorption of malachite green onto bentonite:Equilibrium and kinetic studies and process design.Microporous and Mesoporous Materials,2008,115(3):234-246. [37] Li Y,Yang S G,Sun C,et al.Aqueous photofate of crystal violet under simulated and natural solar irradiation:Kinetics,products,and pathways.Water Research,2016,88:173-183. [38] IHSS.Elemental compositions and stable isotopic ratios of IHSS samples.http://www.humicsubstances.org/elements.html. [39] Kismir Y,Aroguz A Z.Adsorption characteristics of the hazardous dye Brilliant Green on Saklikent mud.Chemical Engineering Journal,2011,172(1):199-206. |
No related articles found! |
|