Chitosan modified inorganic nanowires membranes for ultra-fast and efficient removal of Congo red

被引：25

作者：

Tan, Yumei ^{[1
]}

Kang, Yutang ^{[1
]}

Wang, Wenwen ^{[1
]}

Lv, Xinyan ^{[1
]}

Wang, Boran ^{[1
]}

Zhang, Qi ^{[1
]}

Cui, Canyu ^{[1
]}

Cui, Shuya ^{[2
]}

Jiao, Shihui ^{[1
]}

Pang, Guangsheng ^{[1
]}

Feng, Shouhua ^{[1
]}

机构：

[1] Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China

[2] Mianyang Normal Univ, Coll Chem & Chem Engn, Mianyang 621000, Sichuan, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2021年 / 569卷

基金：

中国国家自然科学基金;

关键词：

Chitosan; Hydrogen titanate nanowires; Membrane; Removal rate; Adsorption-desorption cycles; LIGHT PHOTOCATALYTIC ACTIVITY; DYE ADSORPTION; WASTE-WATER; DOPED TIO2; HIGH-FLUX; NANOCOMPOSITE; FABRICATION; ORANGE; PERMEABILITY; DEGRADATION;

D O I：

10.1016/j.apsusc.2021.150970

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Chitosan modified hydrogen titanate nanowires membrane is prepared through a simple immersion-filtration method, which can be used to adsorb anionic dyes. The adsorption kinetics data shows that the adsorption process follows the pseudo-second-order model. Thermodynamics analysis reveals the adsorption is a spontaneous process. During the dynamic adsorption process, chitosan modified hydrogen titanate nanowires membrane shows excellent removal rate of 99.5% and adsorption capacity of 374.4 mg g(-1) for Congo red. The membrane exhibits excellent cyclic adsorption performance and satisfactory removal rate in the pH range of 2.5-12.5. After 15 adsorption-desorption cycles, the removal rate and permeability of Congo red remain above 98.7% and 1120.0 L m(-2)h(-1) bar(-1), respectively.

引用

页数：14

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