Arsenic (V) adsorption on Fe3O4 nanoparticle-coated boron nitride nanotubes

被引：135

作者：

Chen, Rongzhi ^{[1
,2
]}

Zhi, Chunyi ^{[1
]}

Yang, Huang ^{[1
]}

Bando, Yoshio ^{[1
]}

Zhang, Zhenya ^{[2
]}

Sugiur, Norio ^{[1
]}

Golberg, Dmitri ^{[1
]}

机构：

[1] Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton MANA, Tsukuba, Ibaraki 3050044, Japan

[2] Univ Tsukuba, Grad Sch Life & Environm Sci, Tsukuba, Ibaraki 3058572, Japan

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2011年 / 359卷 / 01期

关键词：

Arsenic adsorption; Boron nitride nanotube; Functionalization; Nanoparticle; Nanostructure; ZERO-VALENT IRON; AQUEOUS-SOLUTION; EXAFS SPECTROSCOPY; CARBON NANOTUBES; DRINKING-WATER; REMOVAL; AS(V); COMPLEXES; NANOCRYSTALS; GOETHITE;

D O I：

10.1016/j.jcis.2011.02.071

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：

Multiwalled boron nitride nanotubes (BNNTs) functionalized with Fe3O4 nanoparticles (NPs) were used for arsenic removal from water solutions. Sonication followed by a heating process was developed to in situ functionalize Fe3O4 NPs onto a tube surface. A batch of adsorption experiments conducted at neutral pH (6.9) and room temperature (25 degrees C) and using the developed nanocomposites revealed effective arsenic (V) removal. The Langmuir, Freundlich, and Dubinin-Radushkevich adsorption isotherms were measured for a range of As(V) initial concentrations from 1 to 40 mg/L under the same conditions. The equilibrium data well fitted all isotherms, indicating that the mechanism for As(V) adsorption was a combination of chemical complexation and physical electrostatic attraction with a slight preference for chemisorption. The magnetite NPs functionalized on BNNTs led to a simple and rapid separation of magnetic metal-loaded adsorbents from the treated water under an external magnetic field. (c) 2011 Elsevier Inc. All rights reserved.

引用

页码：261 / 268

页数：8

共 39 条

[1] [Anonymous], 1984, GUID DRINK WAT QUAL
[2] Adsorption of fluoride from aqueous solution by a synthetic Iron(III)-Aluminum(III) mixed oxide
Biswas, Krishna
Saha, Sanat Kumar
Ghosh, Uday Chand
[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2007, 46 (16) : 5346 - 5356
[3] On the bonding in π-complexes of borazine
Bridgeman, AJ
[J]. POLYHEDRON, 1998, 17 (13-14) : 2279 - 2288
[4] Batch study of arsenate (V) adsorption using Akadama mud: Effect of water mineralization
Chen, Rongzhi
Zhang, Zhenya
Feng, Chuanping
Lei, Zhongfang
Li, Yuan
Li, Miao
Shimizu, Kazuya
Sugiura, Norio
[J]. APPLIED SURFACE SCIENCE, 2010, 256 (09) : 2961 - 2967
[5] Arsenic adsorption from aqueous solution on synthetic zeolites
Chutia, Pratap
Kato, Shigeru
Kojima, Toshinori
Satokawa, Shigeo
[J]. JOURNAL OF HAZARDOUS MATERIALS, 2009, 162 (01) : 440 - 447
[6] Removal of As(III) and As(V) from water using a natural Fe and Mn enriched sample
Deschamps, E
Ciminelli, VST
Höll, WH
[J]. WATER RESEARCH, 2005, 39 (20) : 5212 - 5220
[7] *EC, 1998, DIR REL DRINK WAT QU
[8] *EPA, 2002, IMPL GUID ARS RUL
[9] Fu Q, 2002, NANO LETT, V2, P329, DOI 10.1021/n1025513d
[10] Synthesis and characterization of ropes made of BN multiwalled nanotubes
Golberg, D
Bando, Y
Kurashima, K
Sato, T
[J]. SCRIPTA MATERIALIA, 2001, 44 (8-9) : 1561 - 1565

← 1 2 3 4 →