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A novel efficient phosphate adsorbent (CF-La) was synthesized by treating activated carbon fibers using lanthanum with impregnation method. The adsorption isotherms, adsorption kinetics, one-way experiments, and actual water sample tests were carried out. The adsorption isotherm studies demonstrated that the adsorption process conforms to the Langmuir model, indicating monolayer adsorption, with the maximum adsorption capacity of 5.78mg/g at 333K. Kinetic analyses revealed that the adsorption process follows the pseudo-second-order kinetic model, involving both physical and chemical adsorption mechanisms. The pH and competitive ions experiments indicated that the best adsorption effect was achieved under neutral environment, and the best adsorption result was achieved under neutral condition. The effects of five anions on CF-La were in the following order: S2- > SO42->CO32-> Cl-≈NO3-. The recyclability assessment through five adsorption-desorption cycles showed that CF-La retained >80% adsorption and desorption efficiency. By conducting characterization with SEM and BET on the modified material before and after, it is confirmed that lanthanum has been successfully loaded onto the surface. Analysis of the materials before and after adsorption using XPS and FTIR indicates that the synthesized material features a mesoporous structure, and the presence of lanthanum in two different oxidation states on the surface is beneficial for enhancing the adsorption efficiency. The experiment on sample water verified that CF-La showed excellent adsorption performance on inorganic phosphorus and organic phosphorus in Chaohu Lake, Anhui Province, and the water samples from Chaohu Lake in summer and winter could be reduced to within the threshold of cyanobacterial bloom after adsorption for 10h.

, authors=An-tong CHEN1, Peng ZHANG1, 2, Jiang-nan XIA1, Jin-sheng YANG2, 3, Hao ZHAO1, Xian-guang ZHAO1, *, authorsList=An-tong CHEN, Peng ZHANG, Jiang-nan XIA, Jin-sheng YANG, Hao ZHAO, Xian-guang ZHAO, authorCompany=null, correspAuthors=Xian-guang ZHAO, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1314917492628226883, articleId=1314917491747423041, tenantId=1146029695717560320, journalId=1234093305789726721, language=CN, title=镧改性碳纤维对水体中磷的吸附性能, columnId=1234106386565624579, journalTitle=中国环境科学, columnName=水污染与控制, runingTitle=null, highlight=null, articleAbstract=

利用镧浸渍法处理活性碳纤维制备出了新型高效磷酸根吸附剂(CF-La).并进行了吸附等温线、吸附动力学、单因素实验、实际水样试验.吸附等温线实验表明其吸附过程更符合Langmuir模型,吸附属于单层吸附,在333K时吸附容量最大为5.78mg/g,20℃吸附容量为5.31mg/g;动力学实验表明CF-La吸附过程符合二级动力学模型,包含物理、化学吸附;pH和竞争离子实验表明,CF-La在中性环境下吸附效果最佳且不受干扰离子影响,5种阴离子对CF-La的影响顺序为:S2->SO42->CO32->Cl-≈NO3-;通过5次吸附-解吸循环实验进行可回收性评价,结果表明CF-La对磷酸根的吸附率和脱附率均保持在80%以上;通过SEM、BET对改性前后材料进行表征,表明镧已成功负载在材料表面;XPS、FTIR对吸附前后材料进行吸附机理分析,表明合成材料具有介孔结构且表面存在两种不同价态的镧有利于提高吸附效果.通过实际水样试验,验证了CF-La对安徽巢湖水体中无机磷、有机磷均体现出优异的吸附性能,吸附10h后夏季和冬季的巢湖水样均可降低至蓝藻水华发生阈值内.

, authors=陈安童1, 张鹏1, 2, 夏江楠1, 杨瑾晟2, 3, 赵浩1, 赵贤广1, *, authorsList=陈安童, 张鹏, 夏江楠, 杨瑾晟, 赵浩, 赵贤广, authorCompany=null, correspAuthors=赵贤广, authorNote=

陈安童(2000-),女,浙江杭州人,南京工业大学硕士研究生,主要从事生态环境污染控制.发表论文1篇..

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陈安童(2000-),女,浙江杭州人,南京工业大学硕士研究生,主要从事生态环境污染控制.发表论文1篇..

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陈安童(2000-),女,浙江杭州人,南京工业大学硕士研究生,主要从事生态环境污染控制.发表论文1篇..

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镧改性碳纤维对水体中磷的吸附性能
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陈安童 1 , 张鹏 1, 2 , 夏江楠 1 , 杨瑾晟 2, 3 , 赵浩 1 , 赵贤广 1, *
中国环境科学 | 水污染与控制 2025,45(7): 3742-3752
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中国环境科学 |水污染与控制 2025 , 45 (7) : 3742 -3752
镧改性碳纤维对水体中磷的吸附性能
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陈安童(2000-),女,浙江杭州人,南京工业大学硕士研究生,主要从事生态环境污染控制.发表论文1篇..

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陈安童(2000-),女,浙江杭州人,南京工业大学硕士研究生,主要从事生态环境污染控制.发表论文1篇..

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陈安童1 , 张鹏1, 2, 夏江楠1, 杨瑾晟2, 3, 赵浩1, 赵贤广1, *
作者信息
  • 1.南京工业大学环境科学与工程学院,江苏 南京 210000
  • 2.中国科学院南京地理与湖泊研究所,湖泊与环境国家重点实验室,江苏 南京 210008
  • 3.中国科学院大学,北京 100049
通讯作者:
* 责任作者,教授,
作者简介:

陈安童(2000-),女,浙江杭州人,南京工业大学硕士研究生,主要从事生态环境污染控制.发表论文1篇..

Lanthanum-modified carbon fibers for enhanced phosphorus adsorption
An-tong CHEN1 , Peng ZHANG1, 2, Jiang-nan XIA1, Jin-sheng YANG2, 3, Hao ZHAO1, Xian-guang ZHAO1, *
Affiliations
  • 1.School of Environmental Science and Engineering, Nanjing University of Technology, Nanjing 210000, China
  • 2.State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and limnology, Chinese Academy of Sciences, Nanjing 210008, China
  • 3.University of Chinese Academy of Sciences, Beijing 100049, China
出版时间: 2025-07-20
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利用镧浸渍法处理活性碳纤维制备出了新型高效磷酸根吸附剂(CF-La).并进行了吸附等温线、吸附动力学、单因素实验、实际水样试验.吸附等温线实验表明其吸附过程更符合Langmuir模型,吸附属于单层吸附,在333K时吸附容量最大为5.78mg/g,20℃吸附容量为5.31mg/g;动力学实验表明CF-La吸附过程符合二级动力学模型,包含物理、化学吸附;pH和竞争离子实验表明,CF-La在中性环境下吸附效果最佳且不受干扰离子影响,5种阴离子对CF-La的影响顺序为:S2->SO42->CO32->Cl-≈NO3-;通过5次吸附-解吸循环实验进行可回收性评价,结果表明CF-La对磷酸根的吸附率和脱附率均保持在80%以上;通过SEM、BET对改性前后材料进行表征,表明镧已成功负载在材料表面;XPS、FTIR对吸附前后材料进行吸附机理分析,表明合成材料具有介孔结构且表面存在两种不同价态的镧有利于提高吸附效果.通过实际水样试验,验证了CF-La对安徽巢湖水体中无机磷、有机磷均体现出优异的吸附性能,吸附10h后夏季和冬季的巢湖水样均可降低至蓝藻水华发生阈值内.

富营养化  /  碳纤维  /  镧改性  /  磷离子

A novel efficient phosphate adsorbent (CF-La) was synthesized by treating activated carbon fibers using lanthanum with impregnation method. The adsorption isotherms, adsorption kinetics, one-way experiments, and actual water sample tests were carried out. The adsorption isotherm studies demonstrated that the adsorption process conforms to the Langmuir model, indicating monolayer adsorption, with the maximum adsorption capacity of 5.78mg/g at 333K. Kinetic analyses revealed that the adsorption process follows the pseudo-second-order kinetic model, involving both physical and chemical adsorption mechanisms. The pH and competitive ions experiments indicated that the best adsorption effect was achieved under neutral environment, and the best adsorption result was achieved under neutral condition. The effects of five anions on CF-La were in the following order: S2- > SO42->CO32-> Cl-≈NO3-. The recyclability assessment through five adsorption-desorption cycles showed that CF-La retained >80% adsorption and desorption efficiency. By conducting characterization with SEM and BET on the modified material before and after, it is confirmed that lanthanum has been successfully loaded onto the surface. Analysis of the materials before and after adsorption using XPS and FTIR indicates that the synthesized material features a mesoporous structure, and the presence of lanthanum in two different oxidation states on the surface is beneficial for enhancing the adsorption efficiency. The experiment on sample water verified that CF-La showed excellent adsorption performance on inorganic phosphorus and organic phosphorus in Chaohu Lake, Anhui Province, and the water samples from Chaohu Lake in summer and winter could be reduced to within the threshold of cyanobacterial bloom after adsorption for 10h.

eutrophication  /  carbon fibers  /  lanthanum modification  /  phosphate ions
陈安童, 张鹏, 夏江楠, 杨瑾晟, 赵浩, 赵贤广. 镧改性碳纤维对水体中磷的吸附性能. 中国环境科学, 2025 , 45 (7) : 3742 -3752 .
An-tong CHEN, Peng ZHANG, Jiang-nan XIA, Jin-sheng YANG, Hao ZHAO, Xian-guang ZHAO. Lanthanum-modified carbon fibers for enhanced phosphorus adsorption[J]. China Environmental Science, 2025 , 45 (7) : 3742 -3752 .
  • 中国石化集团南京化学工业有限公司技术研发项目(11700000-24-FW2099-0058)
  • 北京绿色未来环境基金会2024绿苗计划项目
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  • 接收时间:2024-11-25
  • 首发时间:2026-10-08
  • 出版时间:2025-07-20
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  • 收稿日期:2024-11-25
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中国石化集团南京化学工业有限公司技术研发项目(11700000-24-FW2099-0058)
北京绿色未来环境基金会2024绿苗计划项目
作者信息
    1.南京工业大学环境科学与工程学院,江苏 南京 210000
    2.中国科学院南京地理与湖泊研究所,湖泊与环境国家重点实验室,江苏 南京 210008
    3.中国科学院大学,北京 100049

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2种不同金属材料的力学参数
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total species (%)
属
Genus
种数
Number of
species
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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