[1]蔡元兴,*,徐希杉,等.直接巯基化石墨烯对汞吸附性能研究[J].山东建筑大学学报,2020,35(03):13-20.[doi:10.12077/sdjz.2020.03.003]
 CAI Yuanxing,*,XU Xishan,et al.Study on adsorption properties of directly-thiolated graphene for mercury[J].Journal of Shandong jianzhu university,2020,35(03):13-20.[doi:10.12077/sdjz.2020.03.003]
点击复制

直接巯基化石墨烯对汞吸附性能研究()
分享到:

《山东建筑大学学报》[ISSN:1673-7644/CN:37-1449/TU]

卷:
35
期数:
2020年03期
页码:
13-20
栏目:
研究论文
出版日期:
2020-06-15

文章信息/Info

Title:
Study on adsorption properties of directly-thiolated graphene for mercury
文章编号:
1673-7644(2020)03-0013-08
作者:
蔡元兴 1*徐希杉12王振华2
(1.山东建筑大学 材料科学与工程学院,山东 济南 250101;2.齐鲁工业大学(山东省科学院) 山东省分析测试中心,山东 济南 250014)
Author(s):
CAI Yuanxing 1* XU Xishan1 2 WANG Zhenhua2
( 1. School of Material Science and Engineering, Shandong Jianzhu University, Jinan 250101, China; 2. Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China )
关键词:
石墨烯巯基化循环利用
Keywords:
graphene thiol mercury recycling
分类号:
X703
DOI:
10.12077/sdjz.2020.03.003
文献标志码:
A
摘要:
直接巯基化石墨烯具有成本低、亲水性好、易分散、易分离和可循环利用等优点,研究其制备方法、物理化学性质和使用条件,可以为水中汞的去除提供新的思路。文章采用“一锅法”直接将巯基引入氧化石墨烯,通过SEM、TEM、EDS和XPS等表征手段进行实验,研究了pH值和共存离子对直接巯基化石墨烯吸附汞的影响,确定了吸附动力学模型和吸附等温方程,考察了直接巯基化石墨烯的循环利用情况。结果表明:通过设计的工艺路线成功地合成了直接巯基化墨烯,其中pH=6是直接巯基化石墨烯对汞吸附的最佳条件;直接巯基化石墨烯与汞之间的吸附行为为化学吸附;通过计算所得的最大吸附量为143.9 mg/g;即使循环利用4次以后,材料还保留有85%的吸附量,直接巯基化石墨烯在汞吸附方面具有广阔的应用潜力。
Abstract:
Directly-thiolated graphene has the advantages of low cost, good hydrophilicity, easy dispersion, easy separation and recyclability. Studying its preparation method, physicochemical properties and use conditions can provide new ideas for mercury removal in water. In this paper, the “one-pot method” was used to directly introduce mercapto groups into graphene oxide and tested by characterization methods such as SEM, TEM, EDS, and XPS. The effect of pH and coexisting ions on the adsorption of mercury ions by directly-thiolated graphene were investigated. The kinetic model and adsorption isotherm equation were determined and the recycling of directly-thiolated graphene was investigated. The results show: Directly-thiolated graphene has been successfully synthesized through the designed strategy; pH=6 is the best condition for the adsorption between directly-thiolated graphene and mercury ions; the adsorption behavior between directly-thiolated graphene and mercury ions is chemisorption; the maximum adsorption amount obtained by calculation is 143.9 mg/g; even after 4 times of recycling, the material still retains 85% of the adsorption capacity, and the material has application potential.

参考文献/References:

[1]黄鸣荣, 高国玉,何晓弟. 含汞废水处理方法的研究[J]. 化工设计, 2010, 20(2): 33-35. [2]李珍,刘建. 2-巯基乙胺螯合凝胶的制备及其除汞性能的研究[J]. 应用化工, 2013, 42(8): 1441-1444. [3]齐景凯, 张玉芬, 于秀英,等. 蓖麻秸秆对铅、汞、镍和镉的吸附特征[J]. 中国农业大学学报, 2017, 22(3): 85-93. [4]杨雨寒, 靳炜, 刘俐媛,等. 基于SCI 论文的汞污染防治领域的文献计量分析[J]. 环境工程学报, 2019, 13(6): 1488-1501. [5]林建清, 陈尹淇, 张亚爽,等. 离子交换法处理实验室含汞废水的研究[J]. 泉州师范学院学报, 2018, 36(2): 45-49. [6]吴春来,樊静. 石墨烯材料在重金属废水吸附净化中的应用[J]. 化工进展, 2013, 32(11): 2668-2694. [7]Beal S A, Osterberg E C, Zdanowicz C M, et al. Ice core pers-pective on mercury pollution during the past 600 years[J]. Environment Science and Technolgy, 2015, 49(13): 7641-7647. [8]Aragay G, Pons J, Merkoc A. Recent trends in macro-, micro-, and nanomaterial-based tools and strategies for heavy-metal detection[J]. Chemical Reviews, 2011, 111(5): 3433-3458. [9]Nuengmatcha P, Mahachai R, Chanthai S. Adsorption of functi-onalized thiol-graphene oxide for removal of mercury from aqueous solution[J]. Asian Journal of Chemistry, 2015, 27(11): 4167-4170. [10]陈潇禄, 黄家蓥, 刘彦鹏,等. 半胱氨酸/石墨烯复合凝胶的制备及对Hg2+吸附性质[J]. 广州化工, 2018, 46(7): 45-47. [11]余琦粟. 磁性石墨烯材料对重金属的吸附研究进展[J]. 广东化工, 2017, 11(44): 131-141. [12]Li L, Wang Z, Zhang S, et al. Directly-thiolated graphene based organic solvent-free cloud point extraction-like method for enrichment and speciation of mercury by HPLC-ICP-MS[J]. Microchemical Journal, 2017, 132: 299-307. [13]冯冬燕, 孙怡然, 于飞,等. 石墨烯及其复合材料对水中重金属离子的吸附性能研究[J]. 动能材料, 2015, 3(46): 3009-3022. [14]Moghadam Z H R, Ahmadvand P, Behbahani A, et al. Dithizone-modified graphene oxide nano-sheet as a sorbent for pre-concentration and determination of cadmium and lead ions in food[J]. Food Additives and Contaminants Part A-Chemistry Analysis Control Exposure and Risk Assessment, 2015, 32(11): 1851-1857. [15]Li P, He M, Chen B, et al. Automated dynamic hollow fiber liquid-liquid-liquid microextraction combined with capillary electrophoresis for speciation of mercury in biological and environmental samples[J]. Journal of Chromatography A, 2015, 1415: 48-56. [16]Gawande M B, Goswami A, Asefa T, et al. Core-shell nanop-articles: synthesis and applications in catalysis and electrocatalysis[J]. Chemical Society Reviews, 2015, 44(21): 7540-7590. [17]Li J, Li X, Alsaedi A, et al. Synthesis of highly porous inorganic adsorbents derived from metal-organic frameworks and their application in efficient elimination of mercury(II)[J]. Journal of Colloids and Interface Science, 2018, 517: 61-71. [18]Wang Y, Gao S, Zang X, et al. Graphene-based solid-phase extraction combined with flame atomic absorption spectrometry for a sensitive determination of trace amounts of lead in environmental water and vegetable samples[J]. Analytica Chimica Acta, 2012, 716: 112-118. [19]吴春来,樊静.石墨烯材料在重金属废水吸附净化中的应用[J]. 化工进展, 2013, 32(11): 2668-2694. [20]王卓, 邓娟, 朱君妍,等. 负载铬钴石墨烯基材料对汞(Ⅱ)的吸附性能研究[J]. 工业水处理, 2016, 36(7): 43-67. [21]张亚坤. 磁性石墨烯纳米材料对水中第一类重金属的吸附研究[D].济南: 济南大学, 2014. [22]Zhang C, Sui J, Li J, et al. Efficient removal of heavy metal ions by thiol-functionalized superparamagnetic carbon nanotubes[J]. Chemical Engineering Journal, 2012, 210: 45-52. [23]Pérez-Quintanilla D, Del Hierro I, Fajardo M, et al. Mesoporous silica functionalized with 2-mercaptopyridine: Synthesis, characterization and employment for Hg(II) adsorption[J]. Microporous and Mesoporous Materials, 2006, 89(1-3): 58-68.

备注/Memo

备注/Memo:
收稿日期:2020-04-08 基金项目:国家自然科学基金项目(21277084);山东省自然科学基金项目(ZR2019MB073)作者简介:蔡元兴(1972-),男,副教授,硕士,主要从事金属腐蚀与防护等方面的研究.E-mail: 284039484@qq.com[*通讯作者]
更新日期/Last Update: 2020-06-18