Efficient removal of arsenate from water by lanthanum immobilized electrospun chitosan nanofiber

被引：27
作者：
Tan, Ping [1 ,2 ]
Zheng, Yixi [2 ]
Hu, Yongyou [2 ]
机构：
[1] Chongqing Technol & Business Univ, Coll Environm & Resources, Chongqing Key Lab Catalysis & Environm Mat, Chongqing 400067, Peoples R China
[2] South China Univ Technol, Guangzhou Higher Educ Mega Ctr, Sch Environm & Energy, Guangzhou 510006, Peoples R China
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2020年 / 589卷
基金：
中国国家自然科学基金;
关键词：
Arsenate; Lanthanum; Chitosan nanofiber; Efficient removal; ARSENIC(V) REMOVAL; PHOSPHATE REMOVAL; AQUEOUS-SOLUTION; SURFACE COMPLEXATION; OXIDE NANOPARTICLES; ANION-EXCHANGER; ADSORPTION; MEMBRANE; BINARY; AS(V);
D O I：
10.1016/j.colsurfa.2020.124417
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：
A novel adsorbent CSN-La of lanthanum immobilized on electrospun chitosan nanofiber(CSN) was fabricated and used as adsorbent for arsenate removal. The effects of pH, contact time, arsenate concentration as well as column adsorption were investigated. The results indicated that the arsenate adsorption by CSN-La was pH dependent. The experimental data of arsenic adsorption by CSN-La well fitted pseudo-second-order kinetic model and Langmuir model. The saturated adsorption capacity of CSN-La reached up to 83.6 mg/g, which was significantly higher than that of CSN. CSN-La exhibited preferable arsenate removal in the presence of coexisting anions (chloride, sulfate, nitrate, bicarbonate) at much greater levels. The attractive performance of CSN-La rooted from its special structural characteristics, the host material CSN favored the preconcentration of arsenate through electrostatic attraction, and the immobilized lanthanum exhibited preferable arsenate removal through specific interaction. Column adsorption run by using CSN-La could effectively treat approximately 2650 bed volumes (BV) of feeding solution before breakthrough occurred (from 210 mu g/L in influent to < 10 mu g/L in effluent). The exhausted CSN-La could be repeatedly used after being eluted by sodium hydroxide solution. The obtained results indicated that CSN-La has a great potential in efficient removal of arsenate-containing water.
引用
收藏
页数：8
相关论文
共 58 条
[1]   Self-assembled lanthanum hydroxide microspheres within a reaction-diffusion framework: synthesis, characterization, control and application [J].
Al Akhrass, Ghida A. ;
Ammar, Manal ;
El-Rassy, Houssam ;
Al-Ghoul, Mazen .
RSC ADVANCES, 2016, 6 (05) :3433-3439
[2]   Electrospun nanofiber membrane of PEO/Chitosan for the adsorption of nickel, cadmium, lead and copper ions from aqueous solution [J].
Aliabadi, Majid ;
Irani, Mohammad ;
Ismaeili, Jabir ;
Piri, Hossein ;
Parnian, Mohammad Javad .
CHEMICAL ENGINEERING JOURNAL, 2013, 220 :237-243
[3]   Removal of arsenic(V) from spent ion exchange brine using a new class of starch-bridged magnetite nanoparticles [J].
An, Byungryul ;
Liang, Qiqi ;
Zhao, Dongye .
WATER RESEARCH, 2011, 45 (05) :1961-1972
[4]  
[Anonymous], [No title captured]
[5]  
[Anonymous], [No title captured]
[6]  
[Anonymous], [No title captured]
[7]   The dual capture of AsV and AsIII by UiO-66 and analogues [J].
Audu, Cornelius O. ;
Nguyen, Huong Giang T. ;
Chang, Chih-Yi ;
Katz, Michael J. ;
Mao, Lily ;
Farha, Omar K. ;
Hupp, Joseph T. ;
Nguyen, SonBinh T. .
CHEMICAL SCIENCE, 2016, 7 (10) :6492-6498
[8]   Arsenate removal from water by a weak-base anion exchange fibrous adsorbent [J].
Awual, Md. Rabiul ;
Urata, Shinya ;
Jyo, Akinori ;
Tamada, Masao ;
Katakai, Akio .
WATER RESEARCH, 2008, 42 (03) :689-696
[9]   Efficient arsenic(V) removal from water by ligand exchange fibrous adsorbent [J].
Awual, Md. Rabiul ;
Shenashen, M. A. ;
Yaita, Tsuyoshi ;
Shiwaku, Hideaki ;
Jyo, Akinori .
WATER RESEARCH, 2012, 46 (17) :5541-5550
[10]   Adsorption and removal of As(V) and As(111) using Zr-loaded lysine diacetic acid chelating resin [J].
Balaji, T ;
Yokoyama, T ;
Matsunaga, H .
CHEMOSPHERE, 2005, 59 (08) :1169-1174
123456