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Microwave-assisted synthesis of hierarchical mesoporous nano-Ti0(2)/cellulose composites for rapid adsorption of Pb2+
Zhang, Jinju1,2,3; Li, Lei1,2; Li, Yanxiang1,2; Yang, Chuanfang1,2
2017-04-01
发表期刊CHEMICAL ENGINEERING JOURNAL
ISSN1385-8947
卷号313页码:1132-1141
摘要Cellulose fibers were used as substrates to induce the formation of nano-Ti0(2) via heterogeneous titanium oxysulfate hydrolysis under microwave irradiation. The microwave provided fast heating for the one-pot reaction at 90 degrees C and contributed to the generation of 10 nm anatase TiO2 nanoparticles. These spherical particles further fused into 100 nm raspberry-like mesoporous TiO2 agglomerates uniformly distributed on the cellulose surface. The composite material was able to adsorb Pb2+ very rapidly from simulated wastewater with a maximum capacity of 42.5 mg/g. The adsorption, characterized by pseudo-second order kinetics and Freundlich isotherm, was attributed to the reaction between the hydroxyl groups of TiO2 and Pb2+ to form Pb-0 bond, as indicated by XPS analysis. The adsorbent can be easily regenerated for a number of times without significant reduction in adsorption performances. (C) 2016 Elsevier B.V. All rights reserved.
关键词Cellulose Mesoporous Nano-tio2 Microwave-irradiation Hierarchical Structured Composite Lead Adsorption
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.cej.2016.11.007
收录类别SCI
语种英语
关键词[WOS]HEAVY-METAL REMOVAL ; TITANIUM-DIOXIDE ; WASTE-WATER ; IN-SITU ; THERMOGRAVIMETRIC ANALYSIS ; TIO2 NANOCRYSTALS ; CELLULOSE FIBERS ; FACILE SYNTHESIS ; HYDROXYL GROUP ; COTTON FIBERS
WOS研究方向Engineering
WOS类目Engineering, Environmental ; Engineering, Chemical
项目资助者Chinese Academy of Sciences under the talented program ; Major Science and Technology Program for Water Pollution Control and Treatment(2015ZX07202-013) ; National Nature Science Foundation of China(51302267)
WOS记录号WOS:000394723200114
引用统计
被引频次:15[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/22097
专题生化工程国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Zhang, Jinju,Li, Lei,Li, Yanxiang,et al. Microwave-assisted synthesis of hierarchical mesoporous nano-Ti0(2)/cellulose composites for rapid adsorption of Pb2+[J]. CHEMICAL ENGINEERING JOURNAL,2017,313:1132-1141.
APA Zhang, Jinju,Li, Lei,Li, Yanxiang,&Yang, Chuanfang.(2017).Microwave-assisted synthesis of hierarchical mesoporous nano-Ti0(2)/cellulose composites for rapid adsorption of Pb2+.CHEMICAL ENGINEERING JOURNAL,313,1132-1141.
MLA Zhang, Jinju,et al."Microwave-assisted synthesis of hierarchical mesoporous nano-Ti0(2)/cellulose composites for rapid adsorption of Pb2+".CHEMICAL ENGINEERING JOURNAL 313(2017):1132-1141.
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