BS-DTAB复配修饰红壤对苯酚的吸附
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摘要
为了探究复配修饰后,可变电荷类型的红壤与恒电荷土壤对苯酚的吸附差异,以红壤作为供试土样,在两性表面活性剂BS-12(十二烷基二甲基甜菜碱)修饰的基础上,以阳离子型表面活性剂DTAB(十二烷基三甲基溴化铵)复配修饰制备两性-阳离子复配修饰红壤,采用批处理法研究在单一苯酚及Cd2+复合条件下供试土样对苯酚的吸附效果,并分析不同修饰比例、温度、离子强度和pH的影响。结果表明,DTAB复配修饰增强了BS-12两性修饰红壤对苯酚的吸附能力,单一苯酚表现出在总修饰比例小于150%CEC时吸附量随着修饰比例的增加而递增;各修饰土对苯酚的吸附具有增温负效应;苯酚吸附量随着pH的升高而降低;随着离子强度的增大,苯酚单一处理时供试土样对苯酚吸附量减少,但苯酚和Cd2+复合处理时,则呈现先降低后升高的趋势。Henry模型能较好地拟合各修饰红壤对苯酚吸附的等温吸附数据,吸附以分配机制为主;供试土样对苯酚的吸附属于自发的物理吸附过程。复配修饰红壤的苯酚吸附量低于恒电荷土壤,其黏土矿物成分决定的低CEC是主要影响因素。
To investigate the differences in adsorption of phenol between variable-charge red soil and constant-charge soil after organic complex modification, phenol adsorption via either phenol only or phenol+Cd2+treatment onto variable-charge red soil modified by a mixture of amphoteric modifier, dodecyl dimethyl betaine(BS-12)and the cationic modifier dodecyltrimethylammonium bromide(DTAB)was tested in a batch experiment. The influence of total modifier ratio(TMR), temperature, ionic strength, and pH on the discrepancies in adsorption were studied. The results showed that phenol adsorption onto amphoteric-modified red soil was enhanced by DTAB and increased with an increase in modifier ratio for phenol only treatment when the TMR was within 150% of the CEC. The Henry equation was the best model for describing the phenol adsorption isotherm, demonstrating that the mechanism of phenol adsorption onto the red soil modified with the BSDTAB complex was controlled by the partition effect. The phenol adsorption decreased with increases in temperature, pH, and ionic strength,while an increase was appeared in phenol+Cd2+mixture treatment with an increase in ionic strength. The adsorption of phenol onto BSDTAB-modified red soil was a spontaneous physical adsorption process and was lower than that onto constant-charge soil. The low CEC due to the clay mineral composition was the determining factor in controlling phenol adsorption onto the amphoteric-complex-modified red soil.
To investigate the differences in adsorption of phenol between variable-charge red soil and constant-charge soil after organic complex modification, phenol adsorption via either phenol only or phenol+Cd2+treatment onto variable-charge red soil modified by a mixture of amphoteric modifier, dodecyl dimethyl betaine(BS-12)and the cationic modifier dodecyltrimethylammonium bromide(DTAB)was tested in a batch experiment. The influence of total modifier ratio(TMR), temperature, ionic strength, and pH on the discrepancies in adsorption were studied. The results showed that phenol adsorption onto amphoteric-modified red soil was enhanced by DTAB and increased with an increase in modifier ratio for phenol only treatment when the TMR was within 150% of the CEC. The Henry equation was the best model for describing the phenol adsorption isotherm, demonstrating that the mechanism of phenol adsorption onto the red soil modified with the BSDTAB complex was controlled by the partition effect. The phenol adsorption decreased with increases in temperature, pH, and ionic strength,while an increase was appeared in phenol+Cd2+mixture treatment with an increase in ionic strength. The adsorption of phenol onto BSDTAB-modified red soil was a spontaneous physical adsorption process and was lower than that onto constant-charge soil. The low CEC due to the clay mineral composition was the determining factor in controlling phenol adsorption onto the amphoteric-complex-modified red soil.
引文
[1] Nourmoradi H, Nikaeen M, Khiadani M. Removal of benzene, toluene,ethylbenzene and xylene(BTEX)from aqueous solutions by montmorillonite modified with nonionic surfactant:Equilibrium, kinetic and thermodynamic study[J]. Chemical Engineering Journal, 2012, 191(19):341-348.
[2]吴大清,刁桂仪,彭金莲.高岭石等粘土矿物对五氯苯酚的吸附及其与矿物表面化合态关系[J].地球化学, 2003, 32(5):501-505.WU Da-qing, DIAO Gui-yi, PENG Jin-lian. Adsorption of pentachlorophenol onto clay minerals and relationship with their surface speciation[J]. Geochimica, 2003, 32(5):501-505.
[3] Divincenzo J P, Sparks D L. Sorption of the neutral and charged forms of pentachlorophenol on soil evidence for different mechanisms[J]. Archives of Environmental Contamination&Toxicology, 2001, 40(4):445-500.
[4] Liu B, Lu J, Xie Y, et al. Microwave-assisted modification on montmorillonite with ester-containing Gemini surfactant and its adsorption behavior for triclosan[J]. Journal of Colloid&Interface Science, 2014,418:311-316.
[5] Dutta A, Singh N. Surfactant-modified bentonite clays:Preparation,characterization, and atrazine removal[J]. Environmental Science&Pollution Research International, 2015, 22(5):3876-3885.
[6] Yang S F, Gao M L, Luo Z X. Adsorption of 2-Naphthol on the organomontmorillonites modified by Gemini surfactants with different spacers[J]. Chemical Engineering Journal, 2014, 256:39-50.
[7] Anirudhan T S, Ramachandran M. Removal of 2, 4, 6-trichlorophenol from water and petroleum refinery industry effluents by surfactant-modified bentonite[J]. Journal of Water Process Engineering, 2014, 1:46-53.
[8] Park Y, Sun Z, Ayoko G A, et al. Removal of herbicides from aqueous solutions by modified forms of montmorillonite[J]. Journal of Colloid&Interface Science, 2014, 415(2):127-132.
[9]杨盛春,王周理,何丽仙,等.双离子有机膨润土的微波辅助合成及吸附性能研究[J].科学技术与工程, 2013, 13(21):6189-6192.YANG Sheng-chun, WANG Zhou-li, HE Li-xian, et al. Synthesis of dual-cationorgano-bentonites by microwave-assisted method and absorption performance[J]. Science Technology and Engineering, 2013, 13(21):6189-6192.
[10] Zhu L Z, Chen B L, Shen X Y. Sorption of phenol, p-Nitrophenol, and aniline to dual-cation organobentonites from water[J]. Environmental Science&Technology, 2000, 34(3):468-475.
[11] Li L, Zhu L Z. Effect of soil components on the surfactant-enhanced soil sorption of PAHs[J]. Journal of Soils&Sediments, 2012, 12(2):161-168.
[12] Chen D, Deng Y, Zhu Q, et al. Characterization of cationic-nonionic surfactants modified montmorillonite and its application for the removal of p-nitrophenol[J]. Science of Advanced Materials, 2013, 5(8):1041-1051.
[13]刘玲,麦倩文.阴-阳离子表面活性剂复合改性膨润土治理苯酚废水的研究[J].日用化学工业, 2013, 43(2):85-89.LIU Ling, MAI Qian-wen.Treatment of phenol containing waste water with bentonite jointly modified by anionic and cationic surfactant[J].China Surfactant Detergent&Cosmetics, 2013, 43(2):85-89.
[14] Chen D M, Chen J, Luan X L, et al. Characterization of anion-cationic surfactants modified montmorillonite and its application for the removal of methyl orange[J]. Chemical Engineering Journal, 2011, 171(3):1150-1158.
[15]邵红,刘相龙,李云姣,等.阴阳离子复合改性膨润土的制备及其对染料废水的吸附[J].水处理技术, 2015, 41(1):29-34.SHAO Hong, LIU Xiang-long, LI Yun-jiao, et al. Preparation of anion-cationic composite modified bentonite and its adsorption of dye wastewater[J]. Technology of Water Treatment, 2015, 41(1):29-34.
[16]李文斌,孟昭福,吴琼,等.添加复合吸附剂对塿土吸附菲和Cr(Ⅵ)的影响[J].环境科学, 2016, 37(11):4419-4427.LI Wen-bin, MENG Zhao-fu, WU Qiong, et al. Effect of adding compound adsorbent on phenanthrene and Cr(Ⅵ)absorption by Lou soil[J]. Environmental Science, 2016, 37(11):4419-4427.
[17] Huang R H, Zheng D S, Yang B C, et al. Preparation and characterization of CTAB-HACC bentonite and its ability to adsorb phenol from aqueous solution[J]. Water Science&Technology, 2011, 64(1):286-292.
[18]李婷.两性修饰膨润土对苯酚和Cd(Ⅱ)的平衡吸附特征[D].杨凌:西北农林科技大学, 2012.LI Ting. Equilibrium adsorption characteristics of amphoteric modified bentonites to Cd(Ⅱ)and phenol[D]. Yangling:Northwest A&F University, 2012.
[19] Meng Z F, Zhang Y P, Zhang Z Q. Simultaneous adsorption of phenol and cadmium on amphoteric modified soil[J]. Journal of Hazardous Materials, 2008, 159(2):492-498.
[20]白俊风,孟昭福,刘源辉,等.两性-阳离子复配修饰塿土对苯酚的吸附[J].中国环境科学, 2010, 30(10):1389-1394.BAI Jun-feng, MENG Zhao-fu, LIU Yuan-hui, et al. Adsorption of phenol on amphoteric-cationic modified Lou Soil[J]. China Environmental Science, 2010, 30(10):1389-1394.
[21]刘伟,孟昭福,任爽,等. BS+CTMAB复配修饰在黄棕壤吸附苯酚上的应用[J].环境科学, 2017, 38(7):3036-3044.LIU Wei, MENG Zhao-fu, REN Shuang, et al. Application of amphoteric-cationic combined modification on phenol adsorption of Yellow Brown Soil[J]. Environmental Science, 2017, 38(7):3036-3044.
[22]杨海妮,邓晶,孟昭福,等.镉离子在两性修饰红壤性水稻土中运移研究[J].农业环境科学学报, 2008, 27(4):1604-1610.YANG Hai-ni, DENG Jing, MENG Zhao-fu, et al. Cadmium ion transport in amphoteric modified red-earth-derived-paddy-soil[J]. Journal of Agro-Environment Science, 2008, 27(4):1604-1610.
[23]杨芳,孟昭福,杨海妮,等.两性修饰剂修饰红壤对镉离子吸附的影响[J].农业环境科学学报, 2007, 26(2):462-466.YANG Fang, MENG Zhao-fu, YANG Hai-ni, et al. Cadmium adsorption characteristics in red soil modified with amphoteric modifier[J].Journal of Agro-Environment Science, 2007, 26(2):462-466.
[24]刘雅巍,池勇志,费学宁,等.紫外分光光度法对苯酚、苯胺和苯甲酸的同时测定方法的研究[J].安全与环境学报, 2005, 5(2):72-74.LIU Ya-wei, CHI Yong-zhi, FEI Xue-ning, et al. On simultaneous determination of phenol aniline and benzoic acid by ultraviolet absorption spectrometry[J]. Journal of Safety and Environment, 2005, 5(2):72-74.
[25] Guo J, Chen S, Liu L, et al. Adsorption of dye from wastewater using chitosan-CTAB modified bentonites[J]. Journal of Colloid&Interface Science, 2012, 382(1):61-66.
[26]孟昭福,李荣华,张一平,等.有机修饰塿土对苯胺的吸附[J].土壤通报, 2008, 39(1):143-149.MENG Zhao-fu, LI Rong-hua, ZHANG Yi-ping, et al. Adsorption of aniline on an organic modified Lou Soil[J]. Chinese Journal of Soil Science, 2008, 39(1):143-149.
[27]李彬,孟昭福,王建涛,等. BS-CTMAB复配修饰膨润土对苯酚的吸附[J].农业环境科学学报, 2014, 33(6):1131-1138.LI Bin, MENG Zhao-fu, WANG Jian-tao, et al. Adsorption of phenol on amphoteric-cationic modified bentonites[J]. Journal of Agro-Environment Science, 2014, 33(6):1131-1138.
[28]秦普学. BS-18两性修饰土对苯酚、Cd2+复合污染吸附的研究[D].杨凌:西北农林科技大学, 2010.QIN Pu-xue. Studies on the Adsorption of phenol and Cd2+in soil modified with BS-18[D]. Yangling:Northwest A&F University, 2010.
[29]崔晓波,孟昭福,杨亚莉,等.苯酚在BS-Tw80复配修饰膨润土和高岭土上吸附的比较[J].农业环境科学学报, 2015, 34(10):1905-1913.CUI Xiao-bo, MENG Zhao-fu, YANG Ya-li, et al. Comparison of phenol adsorption on bentonite and kaolinite co-modified by BS-12 and Tween-80[J]. Journal of Agro-Environment Science, 2015, 34(10):1905-1913.
[30]刘源辉.两性—阴离子复配修饰塿土对Cd2+和苯酚的吸附特征[D].杨凌:西北农林科技大学, 2010.LIU Yuan-hui. Adsorption characteristic for Cd2+and phenol on Lou Soil modified with mixtuyre of amphoteric and anionic surfactant[D].Yangling:Northwest A&F University, 2010.
[31]李素珍,徐仁扣.可变电荷土壤中胶粒双电层的相互作用与阴阳离子同时吸附[J].土壤学报, 2009, 46(5):948-952.LI Su-zhen, XU Ren-kou. Interaction of colloidal electrical double layers and simultaneous adsorption of cationsand anions invariable charge soils[J]. Acta Pedologica Sinica, 2009, 46(5):948-952.
[32]龚道新,汪传刚,胡湘望,等.噻吩磺隆在土壤中的吸附及表面活性剂对吸附的影响[J].农业环境科学学报, 2007, 26(5):1689-1693.GONG Dao-xin, WANG Chuan-gang, HU Xiang-wang, et al. Adsorption of thifensulfuron in soils and influence of surfactants to adsorption[J]. Journal of Agro-Environment Science, 2007, 26(5):1689-1693.
[33]陈铭,刘更另.可变电荷土壤的表面化学性质[J].土壤通报,1993(5):238-240.CHEN Ming, LIU Geng-ling. Surface chemical properties of variable charge soils[J]. Chinese Journal of Soil Science, 1993(5):238-240.
[2]吴大清,刁桂仪,彭金莲.高岭石等粘土矿物对五氯苯酚的吸附及其与矿物表面化合态关系[J].地球化学, 2003, 32(5):501-505.WU Da-qing, DIAO Gui-yi, PENG Jin-lian. Adsorption of pentachlorophenol onto clay minerals and relationship with their surface speciation[J]. Geochimica, 2003, 32(5):501-505.
[3] Divincenzo J P, Sparks D L. Sorption of the neutral and charged forms of pentachlorophenol on soil evidence for different mechanisms[J]. Archives of Environmental Contamination&Toxicology, 2001, 40(4):445-500.
[4] Liu B, Lu J, Xie Y, et al. Microwave-assisted modification on montmorillonite with ester-containing Gemini surfactant and its adsorption behavior for triclosan[J]. Journal of Colloid&Interface Science, 2014,418:311-316.
[5] Dutta A, Singh N. Surfactant-modified bentonite clays:Preparation,characterization, and atrazine removal[J]. Environmental Science&Pollution Research International, 2015, 22(5):3876-3885.
[6] Yang S F, Gao M L, Luo Z X. Adsorption of 2-Naphthol on the organomontmorillonites modified by Gemini surfactants with different spacers[J]. Chemical Engineering Journal, 2014, 256:39-50.
[7] Anirudhan T S, Ramachandran M. Removal of 2, 4, 6-trichlorophenol from water and petroleum refinery industry effluents by surfactant-modified bentonite[J]. Journal of Water Process Engineering, 2014, 1:46-53.
[8] Park Y, Sun Z, Ayoko G A, et al. Removal of herbicides from aqueous solutions by modified forms of montmorillonite[J]. Journal of Colloid&Interface Science, 2014, 415(2):127-132.
[9]杨盛春,王周理,何丽仙,等.双离子有机膨润土的微波辅助合成及吸附性能研究[J].科学技术与工程, 2013, 13(21):6189-6192.YANG Sheng-chun, WANG Zhou-li, HE Li-xian, et al. Synthesis of dual-cationorgano-bentonites by microwave-assisted method and absorption performance[J]. Science Technology and Engineering, 2013, 13(21):6189-6192.
[10] Zhu L Z, Chen B L, Shen X Y. Sorption of phenol, p-Nitrophenol, and aniline to dual-cation organobentonites from water[J]. Environmental Science&Technology, 2000, 34(3):468-475.
[11] Li L, Zhu L Z. Effect of soil components on the surfactant-enhanced soil sorption of PAHs[J]. Journal of Soils&Sediments, 2012, 12(2):161-168.
[12] Chen D, Deng Y, Zhu Q, et al. Characterization of cationic-nonionic surfactants modified montmorillonite and its application for the removal of p-nitrophenol[J]. Science of Advanced Materials, 2013, 5(8):1041-1051.
[13]刘玲,麦倩文.阴-阳离子表面活性剂复合改性膨润土治理苯酚废水的研究[J].日用化学工业, 2013, 43(2):85-89.LIU Ling, MAI Qian-wen.Treatment of phenol containing waste water with bentonite jointly modified by anionic and cationic surfactant[J].China Surfactant Detergent&Cosmetics, 2013, 43(2):85-89.
[14] Chen D M, Chen J, Luan X L, et al. Characterization of anion-cationic surfactants modified montmorillonite and its application for the removal of methyl orange[J]. Chemical Engineering Journal, 2011, 171(3):1150-1158.
[15]邵红,刘相龙,李云姣,等.阴阳离子复合改性膨润土的制备及其对染料废水的吸附[J].水处理技术, 2015, 41(1):29-34.SHAO Hong, LIU Xiang-long, LI Yun-jiao, et al. Preparation of anion-cationic composite modified bentonite and its adsorption of dye wastewater[J]. Technology of Water Treatment, 2015, 41(1):29-34.
[16]李文斌,孟昭福,吴琼,等.添加复合吸附剂对塿土吸附菲和Cr(Ⅵ)的影响[J].环境科学, 2016, 37(11):4419-4427.LI Wen-bin, MENG Zhao-fu, WU Qiong, et al. Effect of adding compound adsorbent on phenanthrene and Cr(Ⅵ)absorption by Lou soil[J]. Environmental Science, 2016, 37(11):4419-4427.
[17] Huang R H, Zheng D S, Yang B C, et al. Preparation and characterization of CTAB-HACC bentonite and its ability to adsorb phenol from aqueous solution[J]. Water Science&Technology, 2011, 64(1):286-292.
[18]李婷.两性修饰膨润土对苯酚和Cd(Ⅱ)的平衡吸附特征[D].杨凌:西北农林科技大学, 2012.LI Ting. Equilibrium adsorption characteristics of amphoteric modified bentonites to Cd(Ⅱ)and phenol[D]. Yangling:Northwest A&F University, 2012.
[19] Meng Z F, Zhang Y P, Zhang Z Q. Simultaneous adsorption of phenol and cadmium on amphoteric modified soil[J]. Journal of Hazardous Materials, 2008, 159(2):492-498.
[20]白俊风,孟昭福,刘源辉,等.两性-阳离子复配修饰塿土对苯酚的吸附[J].中国环境科学, 2010, 30(10):1389-1394.BAI Jun-feng, MENG Zhao-fu, LIU Yuan-hui, et al. Adsorption of phenol on amphoteric-cationic modified Lou Soil[J]. China Environmental Science, 2010, 30(10):1389-1394.
[21]刘伟,孟昭福,任爽,等. BS+CTMAB复配修饰在黄棕壤吸附苯酚上的应用[J].环境科学, 2017, 38(7):3036-3044.LIU Wei, MENG Zhao-fu, REN Shuang, et al. Application of amphoteric-cationic combined modification on phenol adsorption of Yellow Brown Soil[J]. Environmental Science, 2017, 38(7):3036-3044.
[22]杨海妮,邓晶,孟昭福,等.镉离子在两性修饰红壤性水稻土中运移研究[J].农业环境科学学报, 2008, 27(4):1604-1610.YANG Hai-ni, DENG Jing, MENG Zhao-fu, et al. Cadmium ion transport in amphoteric modified red-earth-derived-paddy-soil[J]. Journal of Agro-Environment Science, 2008, 27(4):1604-1610.
[23]杨芳,孟昭福,杨海妮,等.两性修饰剂修饰红壤对镉离子吸附的影响[J].农业环境科学学报, 2007, 26(2):462-466.YANG Fang, MENG Zhao-fu, YANG Hai-ni, et al. Cadmium adsorption characteristics in red soil modified with amphoteric modifier[J].Journal of Agro-Environment Science, 2007, 26(2):462-466.
[24]刘雅巍,池勇志,费学宁,等.紫外分光光度法对苯酚、苯胺和苯甲酸的同时测定方法的研究[J].安全与环境学报, 2005, 5(2):72-74.LIU Ya-wei, CHI Yong-zhi, FEI Xue-ning, et al. On simultaneous determination of phenol aniline and benzoic acid by ultraviolet absorption spectrometry[J]. Journal of Safety and Environment, 2005, 5(2):72-74.
[25] Guo J, Chen S, Liu L, et al. Adsorption of dye from wastewater using chitosan-CTAB modified bentonites[J]. Journal of Colloid&Interface Science, 2012, 382(1):61-66.
[26]孟昭福,李荣华,张一平,等.有机修饰塿土对苯胺的吸附[J].土壤通报, 2008, 39(1):143-149.MENG Zhao-fu, LI Rong-hua, ZHANG Yi-ping, et al. Adsorption of aniline on an organic modified Lou Soil[J]. Chinese Journal of Soil Science, 2008, 39(1):143-149.
[27]李彬,孟昭福,王建涛,等. BS-CTMAB复配修饰膨润土对苯酚的吸附[J].农业环境科学学报, 2014, 33(6):1131-1138.LI Bin, MENG Zhao-fu, WANG Jian-tao, et al. Adsorption of phenol on amphoteric-cationic modified bentonites[J]. Journal of Agro-Environment Science, 2014, 33(6):1131-1138.
[28]秦普学. BS-18两性修饰土对苯酚、Cd2+复合污染吸附的研究[D].杨凌:西北农林科技大学, 2010.QIN Pu-xue. Studies on the Adsorption of phenol and Cd2+in soil modified with BS-18[D]. Yangling:Northwest A&F University, 2010.
[29]崔晓波,孟昭福,杨亚莉,等.苯酚在BS-Tw80复配修饰膨润土和高岭土上吸附的比较[J].农业环境科学学报, 2015, 34(10):1905-1913.CUI Xiao-bo, MENG Zhao-fu, YANG Ya-li, et al. Comparison of phenol adsorption on bentonite and kaolinite co-modified by BS-12 and Tween-80[J]. Journal of Agro-Environment Science, 2015, 34(10):1905-1913.
[30]刘源辉.两性—阴离子复配修饰塿土对Cd2+和苯酚的吸附特征[D].杨凌:西北农林科技大学, 2010.LIU Yuan-hui. Adsorption characteristic for Cd2+and phenol on Lou Soil modified with mixtuyre of amphoteric and anionic surfactant[D].Yangling:Northwest A&F University, 2010.
[31]李素珍,徐仁扣.可变电荷土壤中胶粒双电层的相互作用与阴阳离子同时吸附[J].土壤学报, 2009, 46(5):948-952.LI Su-zhen, XU Ren-kou. Interaction of colloidal electrical double layers and simultaneous adsorption of cationsand anions invariable charge soils[J]. Acta Pedologica Sinica, 2009, 46(5):948-952.
[32]龚道新,汪传刚,胡湘望,等.噻吩磺隆在土壤中的吸附及表面活性剂对吸附的影响[J].农业环境科学学报, 2007, 26(5):1689-1693.GONG Dao-xin, WANG Chuan-gang, HU Xiang-wang, et al. Adsorption of thifensulfuron in soils and influence of surfactants to adsorption[J]. Journal of Agro-Environment Science, 2007, 26(5):1689-1693.
[33]陈铭,刘更另.可变电荷土壤的表面化学性质[J].土壤通报,1993(5):238-240.CHEN Ming, LIU Geng-ling. Surface chemical properties of variable charge soils[J]. Chinese Journal of Soil Science, 1993(5):238-240.
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