改性秸秆-Fe_3O_4复合材料对染料废水中亚甲基蓝的去除研究
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摘要
利用柠檬酸(CA)对秸秆(RS)进行改性制备改性秸秆(CA-RS),并通过化学沉淀法负载Fe_3O_4以制得柠檬酸改性秸秆-Fe_3O_4(CA-RS-Fe)复合材料,利用FTIR和XPS对CA-RS、CA-RS-Fe进行表征,研究在不同固液比、温度、溶液初始pH和浓度条件下,其对溶液中亚甲基蓝(MB)的吸附去除效果。结果表明:固液比为1.0 g·L~(-1)、pH在3.0～11.0范围内时,CA-RS对MB去除率达95%以上。拟二级动力学模型能较好地拟合CA-RS和CA-RS-Fe对MB的去除过程。Langmuir模型可以描述MB在CA-RS和CA-RS-Fe表面的吸附。FTIR和XPS分析表明CA-RS表面官能团中的羧基在MB吸附过程中发挥重要作用。CA-RS对MB的吸附机理包括静电作用、氢键和π-π作用。Fe_3O_4的引入减少了CA-RS表面羧基的数量,降低了其对MB的吸附能力,但能实现快速固液分离。研究表明,CA-RS可作为去除染料废水中MB的良好吸附剂,CA-RS负铁之后会降低对MB的吸附量,但有利于提升固液分离效果。
For this study, two adsorption materials, citric-acid-modified rice straw(CA–RS)and citric-acid modified rice straw loaded with Fe_3O_4(CA–RS–Fe)were prepared via the chemical precipitation method. The adsorption materials were characterized by Fourier transform infrared spectroscopy(FTIR)and X-ray photoelectron spectroscopy(XPS)techniques. Their adsorption ability for methylene blue(MB)removal in an aqueous solution was investigated. Influencing factors, including solid-to-liquid ratios, temperature, solution pH,and concentrations, were evaluated. Results showed that at the optimal solid-to-liquid ratio of 1.0 g·L~(-1), more than 95% of MB was removed by CA–RS with a pH ranging from 3.0～11.0. Adsorption kinetics of MB by the CA–RS and CA–RS–Fe methods could be well-described by the pseudo-second-order kinetics model. Furthermore, the Langmuir isotherm equation could describe the adsorption of MB on CA–RS and CA–RS–Fe. The characterization results of FTIR and XPS, before and after adsorption, reveal that functional groups, especially carboxyl group in the CA–RS, played important roles in MB removal. The interaction mechanisms between MB and CA–RS involved electrostatic attraction, hydrogen bonding, and π–π interaction. Introduction of Fe_3O_4 reduced the amount of carboxyl groups and decreased the adsorption of MB. However, rapid and simple solid–liquid separation was achieved, owing to the existence of Fe_3O_4. This indicates that CA–RS could be a good adsorbent for MB dye-removal from wastewater, and the loading of Fe_3O_4 in CA–RS can be beneficial for solid–liquid separation.
For this study, two adsorption materials, citric-acid-modified rice straw(CA–RS)and citric-acid modified rice straw loaded with Fe_3O_4(CA–RS–Fe)were prepared via the chemical precipitation method. The adsorption materials were characterized by Fourier transform infrared spectroscopy(FTIR)and X-ray photoelectron spectroscopy(XPS)techniques. Their adsorption ability for methylene blue(MB)removal in an aqueous solution was investigated. Influencing factors, including solid-to-liquid ratios, temperature, solution pH,and concentrations, were evaluated. Results showed that at the optimal solid-to-liquid ratio of 1.0 g·L~(-1), more than 95% of MB was removed by CA–RS with a pH ranging from 3.0～11.0. Adsorption kinetics of MB by the CA–RS and CA–RS–Fe methods could be well-described by the pseudo-second-order kinetics model. Furthermore, the Langmuir isotherm equation could describe the adsorption of MB on CA–RS and CA–RS–Fe. The characterization results of FTIR and XPS, before and after adsorption, reveal that functional groups, especially carboxyl group in the CA–RS, played important roles in MB removal. The interaction mechanisms between MB and CA–RS involved electrostatic attraction, hydrogen bonding, and π–π interaction. Introduction of Fe_3O_4 reduced the amount of carboxyl groups and decreased the adsorption of MB. However, rapid and simple solid–liquid separation was achieved, owing to the existence of Fe_3O_4. This indicates that CA–RS could be a good adsorbent for MB dye-removal from wastewater, and the loading of Fe_3O_4 in CA–RS can be beneficial for solid–liquid separation.
引文
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[5]Ahmad A,Mohd-Setapar S H,Chuong C S,et al.Recent advances in new generation dye removal technologies:Novel search for approaches to reprocess wastewater[J].RSC Advances,2015,5(39):30801-30818.
[6]Zangeneh H,Zinatizadeh A A L,Habibi M,et al.Photocatalytic oxidation of organic dyes and pollutants in wastewater using different modified titanium dioxides:A comparative review[J].Journal of Industrial and Engineering Chemistry,2015,26:1-36.
[7]Fan S,Wang Y,Wang Z,et al.Removal of methylene blue from aqueous solution by sewage sludge-derived biochar:Adsorption kinetics,equilibrium,thermodynamics and mechanism[J].Journal of Environmental Chemical Engineering,2017,5(1):601-611.
[8]Zhang Z,Kong J.Novel magnetic Fe3O4@C nanoparticles as adsorbents for removal of organic dyes from aqueous solution[J].Journal of Hazardous Materials,2011,193:325-329.
[9]Safarik I,Baldikova E,Prochazkova J,et al.Magnetically modified agricultural and food waste:Preparation and application[J].Journal of Agricultural and Food Chemistry,2018,66(11):2538-2552.
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[11]Sangon S,Hunt A J,Attard T M,et al.Valorisation of waste rice straw for the production of highly effective carbon based adsorbents for dyes removal[J].Journal of Cleaner Production,2018,172:1128-1139.
[12]Sarkar N,Sahoo G,Das R,et al.Three-dimensional rice straw-structured magnetic nanoclay-decorated tripolymeric nanohydrogels as superadsorbent of dye pollutants[J].ACS Applied Nano Materials,2018,1(3):1188-1203.
[13]Bhatnagar A,Sillanp??M,Witek-Krowiak A.Agricultural waste peels as versatile biomass for water purification:A review[J].Chemical Engineering Journal,2015,270:244-271.
[14]Ngah W S W,Hanafiah M.Removal of heavy metal ions from wastewater by chemically modified plant wastes as adsorbents:A review[J].Bioresource Technology,2008,99(10):3935-3948.
[15]Abdolali A,Guo W S,Ngo H H,et al.Typical lignocellulosic wastes and by-products for biosorption process in water and wastewater treatment:A critical review[J].Bioresource Technology,2014,160:57-66.
[16]Sun L,Chen D,Wan S,et al.Performance,kinetics,and equilibrium of methylene blue adsorption on biochar derived from eucalyptus saw dust modified with citric,tartaric,and acetic acids[J].Bioresource Technology,2015,198:300-308.
[17]Sajab M S,Chia C H,Zakaria S,et al.Citric acid modified kenaf core fibres for removal of methylene blue from aqueous solution[J].Bioresource Technology,2011,102(15):7237-7243.
[18]Chen L,Ramadan A,LüL,et al.Biosorption of methylene blue from aqueous solution using lawny grass modified with citric acid[J].Journal of Chemical&Engineering Data,2011,56(8):3392-3399.
[19]Han R P,Zhang L J,Song C,et al.Characterization of modified wheat straw,kinetic and equilibrium study about copper ion and methylene blue adsorption in batch mode[J].Carbohydrate Polymers,2009,79(4):1140-1149.
[20]Fan S,Wang Y,Li Y,et al.Facile synthesis of teawaste/Fe3O4nanoparticle composite for hexavalent chromium removal from aqueous solution[J].RSC Advances,2017,7(13):7576-7590.
[21]Lagergren S.About the theory of so-called adsorption of soluble substances[J].Kungliga Svenska Vetenskapsakademiens Handlingar,1898,24:1-39.
[22]Ho Y S,McKay G.Pseudo-second order model for sorption processes[J].Process Biochemistry,1999,34(5):451-465.
[23]Langmuir I.The adsorption of gases on plane surfaces of glass,mica and platinum[J].Journal of the American Chemical Society,1918,40(9):1361-1403.
[24]Freundlich H.über die adsorption in l?sungen[J].Zeitschrift Fur Physikalische Chemie,1907,57:385-470.1140385
[25]曹莹菲,张红,赵聪,等.秸秆腐解过程中结构的变化特征[J].农业环境科学学报,2016,35(5):976-984.CAO Ying-fei,ZHANG Hong,ZHAO Cong,et al.Changes of organic structures of crop residues during decomposition[J].Journal of AgroEnvironment Science,2016,35(5):976-984.
[26]梁昊,罗朝晖,赵海燕,等.7种改性水稻秸秆对溶液中Cd2+的吸附[J].中国环境科学,2018,38(2):596-607.LIANG Hao,LUO Zhao-hui,ZHAO Hai-yan,et al.Adsorption of Cd2+in solution by 7 modified rice straw[J].Chinese Environmental Science,2018,38(2):596-607.
[27]Kiprono S J,Ullah M W,Yang G.Encapsulation of E.coli in biomimetic and Fe3O4-doped hydrogel:Structural and viability analyses[J].Applied Microbiology and Biotechnology,2018,102(2):933-944.
[28]Liu Y,Zhu X,Qian F,et al.Magnetic activated carbon prepared from rice straw-derived hydrochar for triclosan removal[J].RSC Advances,2014,4(109):63620-63626.
[29]Pan M,Gan X,Mei C,et al.Structural analysis and transformation of biosilica during lignocellulose fractionation of rice straw[J].Journal of Molecular Structure,2017,1127:575-582.
[30]Tan G,Wu Y,Liu Y,et al.Removal of Pb(Ⅱ)ions from aqueous solution by manganese oxide coated rice straw biochar a low-cost and highly effective sorbent[J].Journal of the Taiwan Institute of Chemical Engineers,2018,84:85-92.
[31]Oliveira J R,Martins M C L,Mafra L,et al.Synthesis of an O-alkynyl-chitosan and its chemoselective conjugation with a PEG-like amino-azide through click chemistry[J].Carbohydrate Polymers,2012,87(1):240-249.
[32]Nigam S,Barick K C,Bahadur D.Development of citrate-stabilized Fe3O4 nanoparticles:Conjugation and release of doxorubicin for therapeutic applications[J].Journal of Magnetism and Magnetic Materials,2011,323(2):237-243.
[33]Ai L,Jiang J.Fast removal of organic dyes from aqueous solutions by AC/ferrospinel composite[J].Desalination,2010,262(1/2/3):134-140.
[34]李金阳,郭海燕,沈飞,等.水稻秸秆及其厌氧消化残渣生物炭对Cd(Ⅱ)吸附性能研究[J].农业环境科学学报,2018,37(3):585-591.LI Jin-yang,GUO Hai-yan,SHEN Fei,et al.Removal of aqueous Cd(Ⅱ)by biochar derived from rice straw and its anaerobically digested residue[J].Journal of Agro-Environment Science,2018,37(3):585-591.
[35]朱银涛,李业东,王明玉,等.玉米秸秆碱化处理制备的生物炭吸附锌的特性研究[J].农业环境科学学报,2018,37(1):179-185.ZHU Yin-tao,LI Ye-dong,WANG Ming-yu,et al.Adsorption characteristics of biochar prepared by corn stalk alkalization on zinc[J].Journal of Agro-Environment Science,2018,37(1):179-185.
[36]陈春强,吴娟,邬欣慧,等.水热氢氧化钾改性花生壳对染料的吸附性能[J].农业环境科学学报,2016,35(11):2224-2230.CHEN Chun-qiang,WU Juan,WU Xin-hui,et al.Preparation and adsorption performance of peanut shells based adsorbent by potassium hydroxide-assisted hydrothermal method[J].Journal of Agro-Envi-20195-FeOronment Science,2016,35(11):2224-2230.
[37]吴海露,车晓冬,丁竹红,等.山核桃、苔藓和松针基生物质炭对亚甲基蓝及刚果红的吸附性能研究[J].农业环境科学学报,2015,34(8):1575-1581.WU Hai-lu,CHE Xiao-dong,DING Zhu-hong,et al.Sorption of methylene blue and congo red on biochars derived from hickories,mosses and pine needles[J].Journal of Agro-Environment Science,2015,34(8):1575-1581.
[38]罗文文,徐应明,王农,等.贝壳粉对Cd(Ⅱ)的吸附性能研究[J].农业环境科学学报,2017,36(11):2240-2247.LUO Wen-wen,XU Ying-ming,WANG Nong,et al.Adsorption performance of cadmium onto shell powder[J].Journal of Agro-Environment Science,2017,36(11):2240-2247.
[39]Saleh T A,Adio S O,Asif M,et al.Statistical analysis of phenols adsorption on diethylenetriamine-modified activated carbon[J].Journal of Cleaner Production,2018,182:960-968.
[40]Alqadami A A,Naushad M,Alothman Z A,et al.Adsorptive performance of MOF nanocomposite for methylene blue and malachite green dyes:Kinetics,isotherm and mechanism[J].Journal of Environmental Management,2018,223:29-36.
[41]Albadarin A B,Collins M N,Naushad M,et al.Activated lignin-chitosan extruded blends for efficient adsorption of methylene blue[J].Chemical Engineering Journal,2017,307:264-272.
[42]Jia Z,Li Z,Li S,et al.Adsorption performance and mechanism of methylene blue on chemically activated carbon spheres derived from hydrothermally-prepared poly(vinyl alcohol)microspheres[J].Journal of Molecular Liquids,2016,220:56-62.
[43]Fu J,Chen Z,Wang M,et al.Adsorption of methylene blue by a highefficiency adsorbent(polydopamine microspheres):Kinetics,isotherm,thermodynamics and mechanism analysis[J].Chemical Engineering Journal,2015,259:53-61.
[44]Fan S,Tang J,Wang Y,et al.Biochar prepared from co-pyrolysis of municipal sewage sludge and tea waste for the adsorption of methylene blue from aqueous solutions:Kinetics,isotherm,thermodynamic and mechanism[J].Journal of Molecular Liquids,2016,220:432-441.1141
[2]He J,Cui A,Deng S,et al.Treatment of methylene blue containing wastewater by a cost-effective micro-scale biochar/polysulfone mixed matrix hollow fiber membrane:Performance and mechanism studies[J].Journal of Colloid and Interface Science,2018,512:190-197.
[3]Oller I,Malato S,Sánchez-Pérez J A.Combination of advanced oxidation processes and biological treatments for wastewater decontamination:A review[J].Science of the Total Environment,2011,409(20):4141-4166.
[4]Sarayu K,Sandhya S.Current technologies for biological treatment of textile wastewater:A review[J].Applied Biochemistry and Biotechnology,2012,167(3):645-661.
[5]Ahmad A,Mohd-Setapar S H,Chuong C S,et al.Recent advances in new generation dye removal technologies:Novel search for approaches to reprocess wastewater[J].RSC Advances,2015,5(39):30801-30818.
[6]Zangeneh H,Zinatizadeh A A L,Habibi M,et al.Photocatalytic oxidation of organic dyes and pollutants in wastewater using different modified titanium dioxides:A comparative review[J].Journal of Industrial and Engineering Chemistry,2015,26:1-36.
[7]Fan S,Wang Y,Wang Z,et al.Removal of methylene blue from aqueous solution by sewage sludge-derived biochar:Adsorption kinetics,equilibrium,thermodynamics and mechanism[J].Journal of Environmental Chemical Engineering,2017,5(1):601-611.
[8]Zhang Z,Kong J.Novel magnetic Fe3O4@C nanoparticles as adsorbents for removal of organic dyes from aqueous solution[J].Journal of Hazardous Materials,2011,193:325-329.
[9]Safarik I,Baldikova E,Prochazkova J,et al.Magnetically modified agricultural and food waste:Preparation and application[J].Journal of Agricultural and Food Chemistry,2018,66(11):2538-2552.
[10]高利伟,马林,张卫峰,等.中国作物秸秆养分资源数量估算及其利用状况[J].农业工程学报,2009,25(7):173-179.GAO Li-wei,MA Lin,ZHANG Wei-feng,et al.Estimation of nutrient resource quantity of crop straw and its utilization situation in China[J].Transactions of the CSAE,2009,25(7):173-179.
[11]Sangon S,Hunt A J,Attard T M,et al.Valorisation of waste rice straw for the production of highly effective carbon based adsorbents for dyes removal[J].Journal of Cleaner Production,2018,172:1128-1139.
[12]Sarkar N,Sahoo G,Das R,et al.Three-dimensional rice straw-structured magnetic nanoclay-decorated tripolymeric nanohydrogels as superadsorbent of dye pollutants[J].ACS Applied Nano Materials,2018,1(3):1188-1203.
[13]Bhatnagar A,Sillanp??M,Witek-Krowiak A.Agricultural waste peels as versatile biomass for water purification:A review[J].Chemical Engineering Journal,2015,270:244-271.
[14]Ngah W S W,Hanafiah M.Removal of heavy metal ions from wastewater by chemically modified plant wastes as adsorbents:A review[J].Bioresource Technology,2008,99(10):3935-3948.
[15]Abdolali A,Guo W S,Ngo H H,et al.Typical lignocellulosic wastes and by-products for biosorption process in water and wastewater treatment:A critical review[J].Bioresource Technology,2014,160:57-66.
[16]Sun L,Chen D,Wan S,et al.Performance,kinetics,and equilibrium of methylene blue adsorption on biochar derived from eucalyptus saw dust modified with citric,tartaric,and acetic acids[J].Bioresource Technology,2015,198:300-308.
[17]Sajab M S,Chia C H,Zakaria S,et al.Citric acid modified kenaf core fibres for removal of methylene blue from aqueous solution[J].Bioresource Technology,2011,102(15):7237-7243.
[18]Chen L,Ramadan A,LüL,et al.Biosorption of methylene blue from aqueous solution using lawny grass modified with citric acid[J].Journal of Chemical&Engineering Data,2011,56(8):3392-3399.
[19]Han R P,Zhang L J,Song C,et al.Characterization of modified wheat straw,kinetic and equilibrium study about copper ion and methylene blue adsorption in batch mode[J].Carbohydrate Polymers,2009,79(4):1140-1149.
[20]Fan S,Wang Y,Li Y,et al.Facile synthesis of teawaste/Fe3O4nanoparticle composite for hexavalent chromium removal from aqueous solution[J].RSC Advances,2017,7(13):7576-7590.
[21]Lagergren S.About the theory of so-called adsorption of soluble substances[J].Kungliga Svenska Vetenskapsakademiens Handlingar,1898,24:1-39.
[22]Ho Y S,McKay G.Pseudo-second order model for sorption processes[J].Process Biochemistry,1999,34(5):451-465.
[23]Langmuir I.The adsorption of gases on plane surfaces of glass,mica and platinum[J].Journal of the American Chemical Society,1918,40(9):1361-1403.
[24]Freundlich H.über die adsorption in l?sungen[J].Zeitschrift Fur Physikalische Chemie,1907,57:385-470.1140385
[25]曹莹菲,张红,赵聪,等.秸秆腐解过程中结构的变化特征[J].农业环境科学学报,2016,35(5):976-984.CAO Ying-fei,ZHANG Hong,ZHAO Cong,et al.Changes of organic structures of crop residues during decomposition[J].Journal of AgroEnvironment Science,2016,35(5):976-984.
[26]梁昊,罗朝晖,赵海燕,等.7种改性水稻秸秆对溶液中Cd2+的吸附[J].中国环境科学,2018,38(2):596-607.LIANG Hao,LUO Zhao-hui,ZHAO Hai-yan,et al.Adsorption of Cd2+in solution by 7 modified rice straw[J].Chinese Environmental Science,2018,38(2):596-607.
[27]Kiprono S J,Ullah M W,Yang G.Encapsulation of E.coli in biomimetic and Fe3O4-doped hydrogel:Structural and viability analyses[J].Applied Microbiology and Biotechnology,2018,102(2):933-944.
[28]Liu Y,Zhu X,Qian F,et al.Magnetic activated carbon prepared from rice straw-derived hydrochar for triclosan removal[J].RSC Advances,2014,4(109):63620-63626.
[29]Pan M,Gan X,Mei C,et al.Structural analysis and transformation of biosilica during lignocellulose fractionation of rice straw[J].Journal of Molecular Structure,2017,1127:575-582.
[30]Tan G,Wu Y,Liu Y,et al.Removal of Pb(Ⅱ)ions from aqueous solution by manganese oxide coated rice straw biochar a low-cost and highly effective sorbent[J].Journal of the Taiwan Institute of Chemical Engineers,2018,84:85-92.
[31]Oliveira J R,Martins M C L,Mafra L,et al.Synthesis of an O-alkynyl-chitosan and its chemoselective conjugation with a PEG-like amino-azide through click chemistry[J].Carbohydrate Polymers,2012,87(1):240-249.
[32]Nigam S,Barick K C,Bahadur D.Development of citrate-stabilized Fe3O4 nanoparticles:Conjugation and release of doxorubicin for therapeutic applications[J].Journal of Magnetism and Magnetic Materials,2011,323(2):237-243.
[33]Ai L,Jiang J.Fast removal of organic dyes from aqueous solutions by AC/ferrospinel composite[J].Desalination,2010,262(1/2/3):134-140.
[34]李金阳,郭海燕,沈飞,等.水稻秸秆及其厌氧消化残渣生物炭对Cd(Ⅱ)吸附性能研究[J].农业环境科学学报,2018,37(3):585-591.LI Jin-yang,GUO Hai-yan,SHEN Fei,et al.Removal of aqueous Cd(Ⅱ)by biochar derived from rice straw and its anaerobically digested residue[J].Journal of Agro-Environment Science,2018,37(3):585-591.
[35]朱银涛,李业东,王明玉,等.玉米秸秆碱化处理制备的生物炭吸附锌的特性研究[J].农业环境科学学报,2018,37(1):179-185.ZHU Yin-tao,LI Ye-dong,WANG Ming-yu,et al.Adsorption characteristics of biochar prepared by corn stalk alkalization on zinc[J].Journal of Agro-Environment Science,2018,37(1):179-185.
[36]陈春强,吴娟,邬欣慧,等.水热氢氧化钾改性花生壳对染料的吸附性能[J].农业环境科学学报,2016,35(11):2224-2230.CHEN Chun-qiang,WU Juan,WU Xin-hui,et al.Preparation and adsorption performance of peanut shells based adsorbent by potassium hydroxide-assisted hydrothermal method[J].Journal of Agro-Envi-20195-FeOronment Science,2016,35(11):2224-2230.
[37]吴海露,车晓冬,丁竹红,等.山核桃、苔藓和松针基生物质炭对亚甲基蓝及刚果红的吸附性能研究[J].农业环境科学学报,2015,34(8):1575-1581.WU Hai-lu,CHE Xiao-dong,DING Zhu-hong,et al.Sorption of methylene blue and congo red on biochars derived from hickories,mosses and pine needles[J].Journal of Agro-Environment Science,2015,34(8):1575-1581.
[38]罗文文,徐应明,王农,等.贝壳粉对Cd(Ⅱ)的吸附性能研究[J].农业环境科学学报,2017,36(11):2240-2247.LUO Wen-wen,XU Ying-ming,WANG Nong,et al.Adsorption performance of cadmium onto shell powder[J].Journal of Agro-Environment Science,2017,36(11):2240-2247.
[39]Saleh T A,Adio S O,Asif M,et al.Statistical analysis of phenols adsorption on diethylenetriamine-modified activated carbon[J].Journal of Cleaner Production,2018,182:960-968.
[40]Alqadami A A,Naushad M,Alothman Z A,et al.Adsorptive performance of MOF nanocomposite for methylene blue and malachite green dyes:Kinetics,isotherm and mechanism[J].Journal of Environmental Management,2018,223:29-36.
[41]Albadarin A B,Collins M N,Naushad M,et al.Activated lignin-chitosan extruded blends for efficient adsorption of methylene blue[J].Chemical Engineering Journal,2017,307:264-272.
[42]Jia Z,Li Z,Li S,et al.Adsorption performance and mechanism of methylene blue on chemically activated carbon spheres derived from hydrothermally-prepared poly(vinyl alcohol)microspheres[J].Journal of Molecular Liquids,2016,220:56-62.
[43]Fu J,Chen Z,Wang M,et al.Adsorption of methylene blue by a highefficiency adsorbent(polydopamine microspheres):Kinetics,isotherm,thermodynamics and mechanism analysis[J].Chemical Engineering Journal,2015,259:53-61.
[44]Fan S,Tang J,Wang Y,et al.Biochar prepared from co-pyrolysis of municipal sewage sludge and tea waste for the adsorption of methylene blue from aqueous solutions:Kinetics,isotherm,thermodynamic and mechanism[J].Journal of Molecular Liquids,2016,220:432-441.1141