Microwave-assisted synthesis of hierarchical mesoporous nano-TiO2/cellulose composites for rapid adsorption of Pb2+
Microwave-assisted synthesis of hierarchical mesoporous nano-TiO2/cellulose composites for rapid adsorption of Pb2+
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微波辅助合成多级介孔纳米TiO2/纤维素复合材料快速吸附Pb2
DOI:
10.1016/j.cej.2016.11.007
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发表时间:
2017-04
影响因子:
15.1
通讯作者:
Chuanfang Yang
中科院分区:
文献类型:
--
作者:
Jinju Zhang;Lei Li;Yanxiang Li;Chuanfang Yang
Cellulose fibers were used as substrates to induce the formation of nano-TiO2via heterogeneous titanium oxysulfate hydrolysis under microwave irradiation. The microwave provided fast heating for the one-pot reaction at 90 °C and contributed to the generation of 10 nm anatase TiO2nanoparticles. These spherical particles further fused into 100 nm raspberry-like mesoporous TiO2agglomerates 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 TiO2and Pb2+to form Pbsingle bondO bond, as indicated by XPS analysis. The adsorbent can be easily regenerated for a number of times without significant reduction in adsorption performances.
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影响因子:
11.4
作者:
S. Yoshizaki;T. Tomida
通讯作者:
S. Yoshizaki;T. Tomida
影响因子:
22.1
作者:
L. Murruni;F. Conde;G. Leyva;M. Litter
通讯作者:
L. Murruni;F. Conde;G. Leyva;M. Litter
影响因子:
11.4
作者:
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通讯作者:
Zhiwei Thong;G. Han;Yue Cui;Jie Gao;T. Chung;S. Chan;Shawn Wei
影响因子:
11.2
作者:
Li, Lei;Li, Yanxiang;Yang, Chuanfang
通讯作者:
Yang, Chuanfang
影响因子:
3
作者:
Abidi, Noureddine;Hequet, Eric;Wells, Leslie W.
通讯作者:
Wells, Leslie W.