椰壳炭对水中阿莫西林的吸附特性
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摘要
为考察椰壳炭对水中阿莫西林的吸附特性,以活性炭为参照进行了吸附动力学、吸附等温线、吸附热力学研究,结合扫描电镜、孔径与比表面积分析仪、傅里叶红外光谱仪对椰壳炭、活性炭形貌结构和物化性质的表征,分析了椰壳炭对阿莫西林的吸附机制。结果表明,25℃时椰壳炭对阿莫西林的吸附量是50.50 mg/g,高于活性炭的吸附量(48.02 mg/g);2种炭材料对阿莫西林的吸附均符合准二级动力学方程(R~2>0.991 9),表明吸附过程受2种以上因素共同影响;采用Langmuir与Freundlich方程对吸附等温结果进行了拟合,后者(R~2>0.938 7)拟合结果优于前者(R~2>0.928 8),表明炭材料对阿莫西林的吸附不是单分子层吸附;吸附热力学结果发现2种炭材料对阿莫西林的吸附过程是自发(ΔG<0)吸热(ΔH>0)熵变增大(ΔS>0)的过程且吸附过程主要为物理吸附(ΔH<40 kJ/mol)。
引文
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[23]孟玲蝶,王凤奇,李金培,等. 多乙烯多胺改性纤维素及其对水中砷、氟、铬吸附性能研究[J]. 高分子学报,2014(8):1070-1077.
[24]安娜,谢茴茴,高乃云,等. 粉末活性炭对水中嗅味物质IPMP和IBMP的吸附特性[J]. 中南大学学报(自然科学版),2012,43(9):3718-3726.
[25]李坤权,李艳博,刘平,等. 微波蔗渣中孔生物质炭对水中对氯苯酚的吸附特性特性[J]. 环境工程学报,2016,10(9):4684-4690. 吴美儒,周毅峰,唐巧玉. 1株耐硒凝结芽孢杆菌的分离鉴定及其培养条件的优化[J]. 江苏农业科学,2019,47(4):256-259.
[2]高丽,李翔,张远,等. 北京市清河中抗生素的污染特征研究[J]. 生态科学,2014,33(1):83-92.
[3]Zhang Q Q,Ying G G,Pan C G,et al. Comprehensive evaluation of antibiotics emission and fate in the river basins of China:source analysis,multimedia modeling and linkage to bacterial resistance[J]. Environmental Science and Technology,2015,49(11):6772-6782.
[4]宪伟,梁银秀,于翔霏,等. 水体中抗生素污染及其处理技术研究进展[J]. 环境科学与技术,2017,40(增刊1):125-132.
[5]张婧怡,石宝友,解建坤,等. 活性炭物化性质对吸附天然水体中有机污染物的影响[J]. 环境科学,2011,32(2):494-500.
[6]唐行灿,陈金林. 生物炭对土壤理化和微生物性质影响研究进展[J]. 生态科学,2018(1):192-199.
[7]Zhang X Y,Gao B,Creamer A E,et al. Adsorption of VOCs onto engineered carbon materials:A review.[J]. Journal of Hazardous Materials,2017,338:102-123.
[8]王宏伟,战利宏,杨颖,等. 阿莫西林分散片溶出度的方法学验证[J]. 中国实用医药,2012,7(27):246-247.
[9]岳林,邢巧,吴晓晨,等. 甘蔗渣基生物质炭对溶液中Cd(Ⅱ)的吸附解吸作用[J]. 江苏农业科学,2017,45(3):216-220.
[10]Jang H M,Yoo S,Choi,et al. Adsorption isotherm,kinetic modeling and mechanism of tetracycline on Pinus taeda-derived activated biochar[J]. Bioresource Technology,2018,259:24.
[11]严云. 炭化柚子皮对苯酚的吸附性能[J]. 江苏农业科学,2016,44(8):481-483.
[12]Luo J,Li X,Ge C,et al. Sorption of norfloxacin,sulfamerazine and oxytetracycline by KOH-modified biochar under single and ternary systems[J]. Bioresource Technology,2018,263:385.
[13]Chen B L,Zhou D D,Zhu L Z,et al. Transitional adsorption and partition of nonpolar and polar aromatic contaminants by biochars of pine needles with different pyrolytic temperatures[J]. Environmental Science & Technology,2008,42(14):5137-5143.
[14]Zhang X Y,Gao B,Zheng Y L,et al. Biochar for volatile organic compound (VOC) removal:Sorption performance and governing mechanisms[J]. Bioresource Technology,2017,245:606-614.
[15]Ving N V,Zafar M,Behera S K,et al. Arsenic(Ⅲ)removal from aqueous solution by raw and zinc-loaded pine cone biochar:equilibrium,kinetics and thermodynamics studies[J]. International Journal of Environmental Science & Technology,2014,12(4):1283-1294.
[16]Wang Y,Hu Y T,Zhao X,et al. Comparisons of biochar properties from wood material and crop residues at different temperatures and residence times[J]. Energy & Fuels,2013,27(10):5890-5899.
[17]翁诗普. 傅立叶变换红外光谱分析[M]. 2版. 北京:化学工业出版社,2010:296-297.
[18]Inyang M,Gao B,Zimmerman A,et al. Sorption and cosorption of lead and sulfapyridine on carbon nanotube-modified biochars[J]. Environmental Science and Pollution Research,2015,22(3):1868-1876.
[19]Keiluweei M,Nico P S,Johnson M G,et al. Dynamic molecular structure of plant biomass-derived black carbon (biochar)[J]. Environmental Science & Technology,2010,44(4):1247-1253.
[20]鲍晓磊,强志民,贲伟伟,等. 磁性纳米复合材料CoFeM48对水中磺胺类抗生素的吸附去除研究[J]. 环境科学学报,2013,33(2):401-407.
[21]段伦超,王风贺,纪营雪,等. 火力发电厂飞灰对抗生素磺胺的吸附性能[J]. 环境工程学报,2014,8(6):2231-2236.
[22]赵涛,蒋成爱,丘锦荣,等. 皇竹草生物炭对水中磺胺类抗生素吸附性能研究[J]. 水处理技术,2017,43(4):56-61.
[23]孟玲蝶,王凤奇,李金培,等. 多乙烯多胺改性纤维素及其对水中砷、氟、铬吸附性能研究[J]. 高分子学报,2014(8):1070-1077.
[24]安娜,谢茴茴,高乃云,等. 粉末活性炭对水中嗅味物质IPMP和IBMP的吸附特性[J]. 中南大学学报(自然科学版),2012,43(9):3718-3726.
[25]李坤权,李艳博,刘平,等. 微波蔗渣中孔生物质炭对水中对氯苯酚的吸附特性特性[J]. 环境工程学报,2016,10(9):4684-4690. 吴美儒,周毅峰,唐巧玉. 1株耐硒凝结芽孢杆菌的分离鉴定及其培养条件的优化[J]. 江苏农业科学,2019,47(4):256-259.