响应面法优化沙柳基活性炭的制备及其对磺胺类抗生素的吸附研究
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摘要
以沙柳为原料,采用磷酸活化法制备活性炭。以磺胺二甲嘧啶钠(SMS)的吸附量为响应结果,采用Box-Behnken Design(BBD)响应面法对磷酸浓度、活化温度和活化时间3个因素进行优化,得到活性炭(SPAC)的最佳制备条件是:磷酸质量分数为68.75%,活化温度577℃,活化时间48min。以SPAC为吸附剂,对水体中的SMS进行吸附研究,考察了吸附剂用量、吸附时间和溶液初始浓度对SPAC吸附效果的影响,并对吸附机理进行了探讨。
Activated carbon was prepared from salix psammophila(SP)using phosphoric acid(H3 PO_4)as the activating agent.Response surface methodology(RSM)based on Box-Behnken design(BBD)was used to optimize the prepared conditions of activated carbon.The influence of concentration of H3 PO_4,activation temperature and activation time on the adsorption property [expressed by the adsorption uptake of sulfamethazine sodium(SMS)]was investigated.The optimum preparation conditions were H3 PO_4 concentration of 68.75%,activation temperature of577℃ and activation time of 48 min.The influence factors of adsorption behavior,such as dosage of adsorbent,adsorption time and initial concentration and the adsorption mechanisms of SMS on SPAC were investigated.
Activated carbon was prepared from salix psammophila(SP)using phosphoric acid(H3 PO_4)as the activating agent.Response surface methodology(RSM)based on Box-Behnken design(BBD)was used to optimize the prepared conditions of activated carbon.The influence of concentration of H3 PO_4,activation temperature and activation time on the adsorption property [expressed by the adsorption uptake of sulfamethazine sodium(SMS)]was investigated.The optimum preparation conditions were H3 PO_4 concentration of 68.75%,activation temperature of577℃ and activation time of 48 min.The influence factors of adsorption behavior,such as dosage of adsorbent,adsorption time and initial concentration and the adsorption mechanisms of SMS on SPAC were investigated.
引文
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[2]Zhang B P,Han X L,Gu P J,et al.Response surface methodology approach for optimization of ciprofloxacin adsorption using activated carbon derived from the residue of desilicated rice husk[J].Journal of Molecular Liquids,2017,238:316-325.
[3]Hai N T,You S J,Chao H P.Fast and efficient adsorption of methylene green 5on activated carbon prepared from new chemical activation method[J].Journal of Environmental Management,2017,188:322-336.
[4]Sen K,Mondal N K,Chattoraj S,et al.Statistical optimization study of adsorption parameters for the removal of glyphosate on forest soil using the response surface methodology[J].Environmental Earth Sciences,2017,76:22.
[5]Pirsaheb M,Rezai Z,Mansouri A M,et al.Preparation of the activated carbon from India shrub wood and their application for methylene blue removal:modeling and optimization[J].Desalination &Water Treatment,2016,57(13):5888-5902.
[6]Mahmood T,Ali R,Naeem A,et al.Potential of used camellia sinensis leaves as precursor for activated carbon preparation by chemical activation with H3PO4:optimization using response surface methodology[J].Process Safety &Environmental Protection,2017,109:548-563.
[7]刘寒冰,杨兵,薛南冬.酸碱改性活性炭及其对甲苯吸附的影响[J].环境科学,2016,37(9):3670-3678.
[8]Tounsadi H,Khalidi A,Abdennouri M,et al.Activated carbon from diplotaxis harra,biomass:optimization of preparation conditions and heavy metal removal[J].Journal of the Taiwan Institute of Chemical Engineers,2016,59:348-358.
[9]朱玲,康春莉,田涛,等.氯化锌法制备山核桃壳-玉米秸秆混合基活性炭[J].科学技术与工程,2017,17(23):115-121.
[10]Hassan A F,Elhadidy H.Production of activated carbons from waste carpets and its application in methylene blue adsorption:kinetic and thermodynamic studies[J].Journal of Environmental Chemical Engineering,2017,5(1):955-963.
[11]杨晓霞,郑小峰,郭延红.枣核基活性炭的制备及其对亚甲基蓝的吸附性能[J].过程工程学报,2016,16(6):1075-1080.
[12]肖信彤,许丹,陈卓,等.生物质海绵基活性炭纤维吸附苯酚性能研究[J].工业水处理,2014,34(4):22-25.
[13]Wang Y X,Ngo H H,Guo W S.Preparation of a specific bamboo based activated carbon and its application for ciprofloxacin removal[J].Science of the Total Environment,2015,533(15):32-39.
[14]Lan Y K,Chen T C,Tsai H J,et al.Adsorption behavior and mechanism of antibiotic sulfamethoxazole on carboxylic-functionalized carbon nanofibers encapsulated Ni magnetic nanoparticles[J].Langmuir the Acs Journal of Surfaces &Colloids,2016,32(37):9530-9539.
[15]Ya2nB,Niu C H,Wang J.Kinetics,Electron-donor-acceptor interactions,and site energy distribution analyses of norfloxacin adsorption on pretreated barley straw[J].Chemical Engineering Journal,2017,330:1211-1221.
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