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One-pot synthesis of sandwich-like MgO@Carbon with enhanced sorption capacity of organic dye
Zheng, Xiaogang1; Huang, Ming1; You, Yaohui1; Fu, Xiaojing1; Liu, Yong1; Wen, Jing2
2018-02-15
Source PublicationCHEMICAL ENGINEERING JOURNAL
Volume334Pages:1399-1409
SubtypeArticle
AbstractSandwich-like MgO@Carbon (MgO@C) nanocomposoites were fabricated using a one-pot hydrothermal route for the removal of organic dyes. The effects of contact time, pH value, carbon thickness, inorganic ions, and temperature on the sorption capacity of MgO@C were investigated. Compared with pure MgO nanoparticles and carbon bulks, the as-obtained sandwich-like MgO@C exhibited much higher sorption capacity for methyl orange due to the enhanced electrostatic interaction between anionic dye molecules and positively charged MgO@C nanocomposite. The sorption capacity of MgO@C increased with the increase of specific surface and pore volume, and the MgO@C-3 with a carbon thickness of around 5 nm exhibited the highest adsorption efficiency. The adsorption isotherm and kinetics of dye over MgO@C were well fitted by the Langmuir isotherm model and pseudo-second-order adsorption model, respectively. Further investigation indicated that the sorption process of methyl orange over sandwich-like MgO@C was controlled by the external mass transfer and intraparticle diffusion, and was a spontaneous and exothermic adsorption process.
KeywordMgo@carbon Sandwich-like Structure Organic Dyes Sorption Capacity
WOS HeadingsScience & Technology ; Technology
WOS KeywordLITHIUM-ION BATTERIES ; OXYGEN REDUCTION REACTION ; POROUS MAGNESIUM-OXIDE ; TEXTILE WASTE-WATER ; AQUEOUS-SOLUTION ; ACTIVATED CARBON ; GRAPHENE OXIDE ; INTERMEDIATE TEMPERATURES ; ADSORPTION-KINETICS ; FENTON OXIDATION
Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Environmental ; Engineering, Chemical
WOS IDWOS:000418533400140
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Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/6409
Collection青海盐湖研究所知识仓储
盐湖资源与化学实验室
Affiliation1.Neijiang Normal Univ, Coll Chem & Chem Engn, Neijiang 641100, Sichuan, Peoples R China
2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xining 810008, Qinghai, Peoples R China
Recommended Citation
GB/T 7714
Zheng, Xiaogang,Huang, Ming,You, Yaohui,et al. One-pot synthesis of sandwich-like MgO@Carbon with enhanced sorption capacity of organic dye[J]. CHEMICAL ENGINEERING JOURNAL,2018,334:1399-1409.
APA Zheng, Xiaogang,Huang, Ming,You, Yaohui,Fu, Xiaojing,Liu, Yong,&Wen, Jing.(2018).One-pot synthesis of sandwich-like MgO@Carbon with enhanced sorption capacity of organic dye.CHEMICAL ENGINEERING JOURNAL,334,1399-1409.
MLA Zheng, Xiaogang,et al."One-pot synthesis of sandwich-like MgO@Carbon with enhanced sorption capacity of organic dye".CHEMICAL ENGINEERING JOURNAL 334(2018):1399-1409.
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