碳硅介孔材料对水中Cr~(6+)和苯酚的吸附性能研究
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摘要
以正硅酸乙酯(TEOS)为硅源,十六烷基三甲基溴化铵(CTAB)为模板和碳源,用水热合成法制备介孔氧化硅(MCM-41),再加浓硫酸,经过干燥、煅烧、水洗,得到介孔碳硅复合材料。考察其对环境水体中Cr~(6+)和苯酚的吸附性能。结果表明,吸附苯酚的最适条件:30℃,pH=5,吸附时间24 h,此时饱和吸附量为7~11 mg/g;吸附Cr~(6+)的最适条件:20℃,pH=8,吸附时间24 h,饱和吸附量为15~20 mg/g。用材料吸附微污染水中Cr~(6+)和苯酚,去除率分别达到70%和79.77%。
With TEOS as the silicon source,CTAB as the template and carbon source,MCM-41 was prepared by hydrothermal synthesis. Then concentrated sulfuric acid was used to obtain the materials by drying,calcining and washing. Furthermore the adsorption properties of Cr~(6+) and phenol in environmental water are studied. The result showed that the optimum conditions for adsorption of phenol were: 30 ℃,pH= 5,adsorption time 24 h,so saturated adsorption capacity was 7 ~ 11 mg/g; the optimum conditions for adsorption of Cr~(6+)were: 20 ℃,pH = 8,adsorption time 24 h,saturated adsorption capacity was 15 ~20 mg/g. At the same time,the removal rate of hexavalent chromium ions and phenol in the micro-pollution water is 70% and 79. 77% respectively.
With TEOS as the silicon source,CTAB as the template and carbon source,MCM-41 was prepared by hydrothermal synthesis. Then concentrated sulfuric acid was used to obtain the materials by drying,calcining and washing. Furthermore the adsorption properties of Cr~(6+) and phenol in environmental water are studied. The result showed that the optimum conditions for adsorption of phenol were: 30 ℃,pH= 5,adsorption time 24 h,so saturated adsorption capacity was 7 ~ 11 mg/g; the optimum conditions for adsorption of Cr~(6+)were: 20 ℃,pH = 8,adsorption time 24 h,saturated adsorption capacity was 15 ~20 mg/g. At the same time,the removal rate of hexavalent chromium ions and phenol in the micro-pollution water is 70% and 79. 77% respectively.
引文
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[30]马玉洁.碳点/二氧化硅介孔复合材料的制备与性能研究[D].济南:山东大学,2013.
[2]何欣,王玉荣,喻杏元,等.羟基磷灰石/壳聚糖复合材料对六价铬离子的吸附性能研究[J].五邑大学学报:自然科学版,2013(4):27-30.
[3]Hori M,Shozugawa K,Matsuo M.Hexavalent chromium pollution caused by dumped chromium slag at the urban park in Tokyo[J].Journal of Material Cycles&Waste Management,2014,17(1):201-205.
[4]Lilli M A,Moraetis D,Nikolaidis N P,et al.Characterization and mobility of geogenic chromium in soils and river bed sediments of Asopos basin[J].Journal of Hazardous Materials,2015,281:12-19.
[5]Dermatas D,Mpouras T,Chrysochoou M,et al.Origin and concentration profile of chromium in a Greek aquifer[J].Journal of Hazardous Materials,2015,281(1):35-46.
[6]谢欣欣.介孔碳/氧化硅复合材料对苯酚及其同系物的吸附研究[D].哈尔滨:哈尔滨理工大学,2013.
[7]Mishra S,Bharagava R N.Toxic and genotoxic effects of hexavalent chromium in environment and its bioremediation strategies[J].Journal of Environmental Science&Health Part C Environmental Carcinogenesis&Ecotoxicology Reviews,2016,34(1):1-32.
[8]ˇCadkovE,ChrastnV.Isotope evidence of hexavalent chromium stability in ground water samples[J].Chemosphere,2015,138:74-80.
[9]Rahmani A R,Hossieni E,Poormohammadi A.Removal of chromium(VI)from aqueous solution using electro-fenton process[J].Environmental Processes,2015,2(2):1-10.
[10]Agarwal M,Dey P,Upadhayaya S,et al.Adsorption efficiency of magnetite nanoparticles for chromium(VI)removal from water[J].Journal Indian Chemical Society,2016,93(2):199-209.
[11]Kelly D,Zerihun A.The effect of phenol composition on the sensory profile of smoke affected wines[J].Molecules,2015,20(6):9536.
[12]房平,邵瑞华,任娟.活性炭对苯酚的吸附研究[J].炭素技术,2011,30(2):12-16.
[13]Meng G H,Liu B H,Wu Y L,et al.Synthesis and adsorption properties of salicylic acid modified hypercrosslinked polymer toward 4-chloro-phenol and heavy metals[J].Applied Mechanics&Materials,2014,675/676/677:158-162.
[14]Lim M,Son Y,Cui M,et al.Effects of hydrogen peroxide and frequency for the sonochemical degradation of aqueous phenol[J].Japanese Journal of Applied Physics,2009(48):07GH071-07GH074.
[15]Steevensz A,Madur S,Wei F,et al.Crude soybean hull peroxidase treatment of phenol in synthetic and real wastewater:Enzyme economy enhanced by Triton X-100[J].Enzyme&Microbial Technology,2014,55(2):65-71.
[16]Zain N N M,Bakar N K A,Mohamad S.Study of removal of phenol species by adsorption on non-ionic silicon surfactant after cloud point extraction methodology[J].Desalination&Water Treatment,2016,57(8):3532-3543.
[17]余锋伟,卢信清,唐海军,等.有序介孔材料SBA-15吸附分离污水中铬离子的研究[J].上海化工,2010,35(10):1-4.
[18]王振财,陆娜,陈伟.金属化合物@介孔碳硅复合材料的制备和表征[J].化工技术与开发,2014(4):11-14.
[19]宋伟明,徐立洋,孙立,等.MCM-41介孔碳材料的合成及其电化学性能[J].精细化工,2017,34(2):128-133.
[20]Joo S H,Choi S J,Oh I,et al.Ordered nanoporous arrays of carbon supporting high dispersions of platinum nanoparticles[J].Nature,2001,412(6843):169-172.
[21]Vunain E,Mishra A K,Mamba B B.Dendrimers,mesoporous silicas and chitosan-based nanosorbents for the removal of heavy-metal ions:A review[J].International Journal of Biological Macromolecules,2016,86:570-586.
[22]Vilarrasa-García E,Cecilia J A,Santos S M L,et al.CO2adsorption on APTES functionalized mesocellular foams obtained from mesoporous silicas[J].Microporous&Mesoporous Materials,2014,187:125-134.
[23]陈志.改性介孔硅对重金属离子的吸附及影响[J].化工设计通讯,2016,42(6):122.
[24]张财华,李桂娟,王家海.功能化单孔和多孔材料在重金属离子检测中的应用进展[J].分析化学,2014,42(4):607-615.
[25]廖兴盛,庞娅,汤琳,等.选择性吸附水体重金属污染物的研究进展[J].工业水处理,2013,33(10):1-5.
[26]Ivanova R,Genova I,Kovacheva D,et al.Effect of porous structure on the formation of active sites in manganese hosted in ordered mesoporous silica catalysts for environmental protection[J].Journal of Porous Materials,2016,23(4):1005-1013.
[27]Lorenc-Grabowska E.Effect of micropore size distribution on phenol adsorption on steam activated carbons[J].Adsorption-Journal of the International Adsorption Society,2015,22(4/5/6):1-9.
[28]Lorenc-Grabowska E,Diez M A,Gryglewicz G.Influence of pore size distribution on the adsorption of phenol on PET-based activated carbons[J].Journal of Colloid&Interface Science,2016,469:205-212.
[29]刘献斌,谢欣欣,燕红,等.介孔炭材料及介孔炭/氧化硅复合材料对大分子有机污染物的吸附[J].新型炭材料,2013,28(4):241-253.
[30]马玉洁.碳点/二氧化硅介孔复合材料的制备与性能研究[D].济南:山东大学,2013.