Adsorption kinetics, thermodynamics and desorption of natural dissolved organic matter by multiwalled carbon nanotubes

FENGSHENG SU; CHUNGSYING LU

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Adsorption kinetics, thermodynamics and desorption of natural dissolved organic matter by multiwalled carbon nanotubes

机译：多壁碳纳米管对天然溶解有机物的吸附动力学，热力学和解吸

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Multiwalled carbon nanotubes (CNTs) were thermally treated and were employed as adsorbents to study their adsorption kinetics and thermodynamics of natural dissolved organic matter (NDOM) from aqueous solutions. The adsorption kinetics follows the first-order rate law while the adsorption thermodynamics indicates the exothermic and spontaneous nature. A comparative study on the adsorption/desorption properties of NDOM between CNTs and granular activated carbon (GAC) was also conducted and revealed that the CNTs possess more NDOM adsorption capacities and show less weight loss through 10 cycles of water treatment and reactivation than the GAC. This suggests that the CNTs are promising NDOM adsorbents for preventing the microbiological degradation of drinking water quality as well as the formation of disinfection by products in water treatment.

机译：对多壁碳纳米管（CNT）进行了热处理，并用作吸附剂，研究了它们从水溶液中自然溶解的有机物（NDOM）的吸附动力学和热力学。吸附动力学遵循一阶速率定律，而吸附热力学则表明放热和自发性质。还对CNT与颗粒状活性炭（GAC）之间NDOM的吸附/解吸性能进行了比较研究，结果表明，与GAC相比，CNT具有更多的NDOM吸附能力，并且经过10个水处理和再活化循环显示出更少的失重。这表明，碳纳米管是有希望的NDOM吸附剂，可防止饮用水质量的微生物降解以及在水处理过程中形成副产品消毒。

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来源
《Journal of Environmental Science and Health》 |2007年第11期|1543-1552|共10页
作者
FENGSHENG SU; CHUNGSYING LU;
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作者单位

Department of Environmental Engineering, National ChungHsing University, Taichung, Taiwan;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种 eng
中图分类环境科学、安全科学;
关键词
multiwalled carbon nanotubes; adsorption/desorption properties; natural dissolved organic matter; granular activated carbon;

机译：多壁碳纳米管;吸附/解吸性能;天然溶解的有机物;颗粒活性炭;

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5. Granular activated carbon adsorption of dissolved organic matter and trace organic contaminants: Effects of influent dissolved organic matter concentration and pretreatment [D] . Cardenas, Janet 2011

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6. Competitive co-adsorption of bacteriophage MS2 and natural organic matter onto multiwalled carbon nanotubes [O] . Céline Jacquin, Diya Yu, Michael Sander, 2020

机译：将噬菌体MS2和天然有机物质的竞争性共同吸附在多壁碳纳米管上
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机译：将噬菌体MS2和天然有机物质的竞争性共同吸附在多壁碳纳米管上

Adsorption kinetics, thermodynamics and desorption of natural dissolved organic matter by multiwalled carbon nanotubes

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