Nitrogen-functionalized bone chars with developed surface area for efficient adsorption of multiple aquatic pollutants
文献类型:期刊论文
作者 | Yang, Ziyan1,2; Dong, Yuhui1; Meng, Xiang3; Yang, Xiaoli1; Hu, Rui4; Liu, Yuhao1; Wu, Junfeng2 |
刊名 | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS |
出版日期 | 2022-08-20 |
卷号 | 647 |
ISSN号 | 0927-7757 |
关键词 | Surface nitrogen modification Ball milling Multifunctionality Cr(VI) U(VI) Methylene blue |
DOI | 10.1016/j.colsurfa.2022.129061 |
通讯作者 | Yang, Ziyan(lyyanzi1983@163.com) |
英文摘要 | Bone chars pyrolyzed from bone residuals exhibit impressive performances to remove heavy metals given the integration of hydroxyapatite and carbon components. Considering the complexation of functional groups with metal ions and the adsorption of molecules by porous pores, this work prepared nitrogen-functionalized bone chars (NMBCs) with developed surface area (16.99- to 6.71-fold enhancement) and favorable surface modification (maximum 6.03 at% of N) via a ball milling of pristine bone chars with the assistance of ammonia hydroxide. NMBCs presented excellent maximum adsorption capacities for Cr(VI) (339.8 mg/g), U(VI) (466.5 mg/g), and methylene blue (338.3 mg/g) (pH 5.0, T 293 K) from ideal solutions. The effects of geochemical conditions including contact time, solution pH, ionic strength, humic acid, and ambient temperature on adsorption behaviors were investigated. NMBCs favorably adsorbed Cr(VI) (221.8 mg/g at pH 2.0, 175.4 mg/g at pH 4.0) and U(VI) (202.1 mg/g) from simulated wastewater and seawater respectively. With the analysis using spectroscopic technologies, the dominant mechanisms of Cr(VI), U(VI), and methylene blue were the integration of electrostatic attraction, surface complexation, precipitation, cation exchange, cation-pi coordination and pi-pi interaction. This work provided a promising reference for the functionalization of bone chars with enhanced performance and multifunctionality in the remediation of pollutants. |
WOS关键词 | BALL-MILLED BIOCHAR ; COMPETITIVE ADSORPTION ; AQUEOUS-SOLUTION ; HEAVY-METALS ; REMOVAL ; CARBON ; URANIUM ; PB(II) ; HYDROXYAPATITE ; COMPOSITE |
资助项目 | National Natural Science Foundation of China[52000069] ; Open Project Fund of Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology[CJSP2021008] |
WOS研究方向 | Chemistry |
语种 | 英语 |
出版者 | ELSEVIER |
WOS记录号 | WOS:000861002700003 |
资助机构 | National Natural Science Foundation of China ; Open Project Fund of Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/129083] |
专题 | 中国科学院合肥物质科学研究院 |
通讯作者 | Yang, Ziyan |
作者单位 | 1.North China Univ Water Resources & Elect Power, Sch Environm & Municipal Engn, Zhengzhou 450045, Henan, Peoples R China 2.Henan Univ Urban Construct, Henan Prov Key Lab Water Pollut Control & Rehabil, Pingdingshan 467036, Henan, Peoples R China 3.Chongqing Univ Arts & Sci, Sch Mat Sci & Engn, Chongqing 402160, Peoples R China 4.Chinese Acad Sci, Inst Solid State Phys, Hefei Inst Phys Sci, Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Peoples R China |
推荐引用方式 GB/T 7714 | Yang, Ziyan,Dong, Yuhui,Meng, Xiang,et al. Nitrogen-functionalized bone chars with developed surface area for efficient adsorption of multiple aquatic pollutants[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2022,647. |
APA | Yang, Ziyan.,Dong, Yuhui.,Meng, Xiang.,Yang, Xiaoli.,Hu, Rui.,...&Wu, Junfeng.(2022).Nitrogen-functionalized bone chars with developed surface area for efficient adsorption of multiple aquatic pollutants.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,647. |
MLA | Yang, Ziyan,et al."Nitrogen-functionalized bone chars with developed surface area for efficient adsorption of multiple aquatic pollutants".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 647(2022). |
入库方式: OAI收割
来源:合肥物质科学研究院
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