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Super rapid removal of copper, cadmium and lead ions from water by NTA-silica gel

文献类型：期刊论文

作者Li, Yulian1,2; He, Junyong1,2; Zhang, Kaisheng1; Liu, Tao1,2; Hu, Yi1,2; Chen, Xifan3; Wang, Chengming4; Huang, Xingjiu1; Kong, Lingtao1; Liu, Jinhuai1
刊名RSC ADVANCES
出版日期2019
卷号9期号:1页码:397-407
ISSN号2046-2069
DOI10.1039/c8ra08638a
通讯作者Zhang, Kaisheng(kszhang@iim.ac.cn) ; Kong, Lingtao(ltkong@iim.ac.cn)
英文摘要Copper (Cu2+), cadmium (Cd2+) and lead ions (Pb2+) are toxic to human beings and other organisms. In this study, a silica gel material modified with nitrilotriacetic acid (NTA-silica gel) was sensibly designed and prepared via a simple amidation procedure for the removal of Cu2+, Cd2+ and Pb2+ from water. The NTA-silica gels showed rapid removal performances for the three metal ions (Pb2+ (<2 min), Cu2+ and Cd2+ (<20 min)) with relatively high adsorption capacities (63.5, 53.14 and 76.22 mg g(-1) for Cu2+, Cd2+ and Pb2+, respectively). At the same concentration of 20 mg L-1, the removal efficiencies of the three metals by the adsorbent ranged from 96% to 99%. The Freundlich and Langmuir models were utilized to fit the adsorption isotherms. The adsorption kinetics for the three metal ions was pseudo-second-order kinetics. The removal performance of the NTA-silica gels increased in a wide pH range (2-9) and maintained in the presence of competitive metal ions (Na+, Mg2+, Ca2+ and Al3+) with different concentrations. In addition, the NTA-silica gels were easily regenerated (washed with 1% HNO3) and reused for 5 cycles with high adsorption capacity. This study indicates that the NTA-silica gel is a reusable adsorbent for the rapid, convenient, and efficient removal of Cu2+, Cd2+, and Pb2+ from contaminated aquatic environments.
WOS关键词HEAVY-METAL IONS ; SOLID-PHASE EXTRACTION ; NITRILOTRIACETIC ACID ; AQUEOUS-SOLUTIONS ; ADSORPTION CAPACITY ; ENHANCED ADSORPTION ; TRACE LEAD ; ABSORPTION ; NANOPARTICLES ; FLUORIDE
资助项目Science and Technology Major projects of Anhui Province[18030801104] ; Key Technologies R&D Program Foundation of Anhui Province[1704a0802136] ; Chinese Academy of Sciences key deployment project[KFZD-SW-309] ; CASHIPS Director's Fund[YZJJ201701] ; Young Spark Project Foundation of CASHIPS[YZJJ201617]
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000455485600046
出版者ROYAL SOC CHEMISTRY
资助机构Science and Technology Major projects of Anhui Province ; Science and Technology Major projects of Anhui Province ; Science and Technology Major projects of Anhui Province ; Science and Technology Major projects of Anhui Province ; Key Technologies R&D Program Foundation of Anhui Province ; Key Technologies R&D Program Foundation of Anhui Province ; Key Technologies R&D Program Foundation of Anhui Province ; Key Technologies R&D Program Foundation of Anhui Province ; Chinese Academy of Sciences key deployment project ; Chinese Academy of Sciences key deployment project ; Chinese Academy of Sciences key deployment project ; Chinese Academy of Sciences key deployment project ; CASHIPS Director's Fund ; CASHIPS Director's Fund ; CASHIPS Director's Fund ; CASHIPS Director's Fund ; Young Spark Project Foundation of CASHIPS ; Young Spark Project Foundation of CASHIPS ; Young Spark Project Foundation of CASHIPS ; Young Spark Project Foundation of CASHIPS ; Science and Technology Major projects of Anhui Province ; Science and Technology Major projects of Anhui Province ; Science and Technology Major projects of Anhui Province ; Science and Technology Major projects of Anhui Province ; Key Technologies R&D Program Foundation of Anhui Province ; Key Technologies R&D Program Foundation of Anhui Province ; Key Technologies R&D Program Foundation of Anhui Province ; Key Technologies R&D Program Foundation of Anhui Province ; Chinese Academy of Sciences key deployment project ; Chinese Academy of Sciences key deployment project ; Chinese Academy of Sciences key deployment project ; Chinese Academy of Sciences key deployment project ; CASHIPS Director's Fund ; CASHIPS Director's Fund ; CASHIPS Director's Fund ; CASHIPS Director's Fund ; Young Spark Project Foundation of CASHIPS ; Young Spark Project Foundation of CASHIPS ; Young Spark Project Foundation of CASHIPS ; Young Spark Project Foundation of CASHIPS ; Science and Technology Major projects of Anhui Province ; Science and Technology Major projects of Anhui Province ; Science and Technology Major projects of Anhui Province ; Science and Technology Major projects of Anhui Province ; Key Technologies R&D Program Foundation of Anhui Province ; Key Technologies R&D Program Foundation of Anhui Province ; Key Technologies R&D Program Foundation of Anhui Province ; Key Technologies R&D Program Foundation of Anhui Province ; Chinese Academy of Sciences key deployment project ; Chinese Academy of Sciences key deployment project ; Chinese Academy of Sciences key deployment project ; Chinese Academy of Sciences key deployment project ; CASHIPS Director's Fund ; CASHIPS Director's Fund ; CASHIPS Director's Fund ; CASHIPS Director's Fund ; Young Spark Project Foundation of CASHIPS ; Young Spark Project Foundation of CASHIPS ; Young Spark Project Foundation of CASHIPS ; Young Spark Project Foundation of CASHIPS ; Science and Technology Major projects of Anhui Province ; Science and Technology Major projects of Anhui Province ; Science and Technology Major projects of Anhui Province ; Science and Technology Major projects of Anhui Province ; Key Technologies R&D Program Foundation of Anhui Province ; Key Technologies R&D Program Foundation of Anhui Province ; Key Technologies R&D Program Foundation of Anhui Province ; Key Technologies R&D Program Foundation of Anhui Province ; Chinese Academy of Sciences key deployment project ; Chinese Academy of Sciences key deployment project ; Chinese Academy of Sciences key deployment project ; Chinese Academy of Sciences key deployment project ; CASHIPS Director's Fund ; CASHIPS Director's Fund ; CASHIPS Director's Fund ; CASHIPS Director's Fund ; Young Spark Project Foundation of CASHIPS ; Young Spark Project Foundation of CASHIPS ; Young Spark Project Foundation of CASHIPS ; Young Spark Project Foundation of CASHIPS
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/41402]  
专题合肥物质科学研究院_中科院合肥智能机械研究所
通讯作者Zhang, Kaisheng; Kong, Lingtao
作者单位1.Chinese Acad Sci, Inst Intelligent Machines, Nanomat & Environm Detect Lab, Hefei 230031, Anhui, Peoples R China
2.Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China
3.Cilin & CAS Environm Sci & Technol Anhui Inc, Hefei, Anhui, Peoples R China
4.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Li, Yulian,He, Junyong,Zhang, Kaisheng,et al. Super rapid removal of copper, cadmium and lead ions from water by NTA-silica gel[J]. RSC ADVANCES,2019,9(1):397-407.
APA Li, Yulian.,He, Junyong.,Zhang, Kaisheng.,Liu, Tao.,Hu, Yi.,...&Liu, Jinhuai.(2019).Super rapid removal of copper, cadmium and lead ions from water by NTA-silica gel.RSC ADVANCES,9(1),397-407.
MLA Li, Yulian,et al."Super rapid removal of copper, cadmium and lead ions from water by NTA-silica gel".RSC ADVANCES 9.1(2019):397-407.

入库方式： OAI收割

来源：合肥物质科学研究院

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