ECOFRIENDLY FABRICATION OF Au/Fe3O4-CHITOSAN COMPOSITES FOR CATALYTIC REDUCTION OF METHYL ORANGE

被引：0

作者：

Liu, X. L. ^{[1
]}

Yang, X. ^{[1
]}

Xin, H. Y. ^{[1
]}

Tang, X. P. ^{[1
]}

Weng, L. J. ^{[1
]}

Han, Y. Y. ^{[1
]}

Geng, D. ^{[1
]}

机构：

[1] Huaqiao Univ, Coll Chem Engn, Key Lab Biochem Engn Technol Fujian Prov, Xiamen, Peoples R China

来源：

DIGEST JOURNAL OF NANOMATERIALS AND BIOSTRUCTURES | 2016年 / 11卷 / 02期

关键词：

Magnetic chitosan; Gold nanoparticles; Methyl orange; Catalytic degradation; GOLD NANOPARTICLES; AU NANOPARTICLES; CHITOSAN NANOPARTICLES; AQUEOUS-SOLUTIONS; CONGO RED; AZO DYES; REMOVAL; WATER; DEGRADATION; ADSORBENT;

D O I：

暂无

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Au/Fe3O4-chitosan composites were synthesized by a green method without using any strong reducing or stabilizing agents. The morphological properties and structural features of the composites were investigated by transmission electron microscopy (TEM), X-ray diffraction patterns (XRD), thermogravimetric (TG) and Fourier transform infrared (FT-IR) techniques. Catalytic degradation of methyl orange in the presence of NaBH4 using the as-prepared composite as catalysts were studied. The effects of pH value, Au content, reaction time and temperature were tested and the recycling performance of catalysts was examined. The Au/Fe3O4-chitosan composites showed a high catalytic activity when it was prepared with 0.5 wt% Au, pH 6.0 +/- 0.1 at 50 degrees C for 1 h. The degradation rate of methyl orange followed first order kinetics. A possible degradation mechanism of methyl orange was proposed.

引用

页码：337 / 348

页数：12

共 42 条

[1] Oxidation of Benzyl Alcohol and Carbon Monoxide Using Gold Nanoparticles Supported on MnO2 Nanowire Microspheres [J].

Alhumaimess, Mosaed ;

Lin, Zhongjie ;

He, Qian ;

Lu, Li ;

Dimitratos, Nickolaos ;

Dummer, Nicholas F. ;

Conte, Marco ;

Taylor, Stuart H. ;

Bartley, Jonathan K. ;

Kiely, Christopher J. ;

Hutchings, Graham J. .

CHEMISTRY-A EUROPEAN JOURNAL, 2014, 20 (06) :1701-1710

[2] A review on catalytic applications of Au/TiO2 nanoparticles in the removal of water pollutant [J].

Ayati, Ali ;

Ahmadpour, Ali ;

Bamoharram, Fatemeh F. ;

Tanhaei, Bahareh ;

Manttari, Mika ;

Sillanpaa, Mika .

CHEMOSPHERE, 2014, 107 :163-174

[3] Catalytic reduction of organic dyes at gold nanoparticles impregnated silica materials: influence of functional groups and surfactants [J].

Azad, Uday Pratap ;

Ganesan, Vellaichamy ;

Pal, Manas .

JOURNAL OF NANOPARTICLE RESEARCH, 2011, 13 (09) :3951-3959

[4] Chromate adsorption on bifunctional, magnetic zeolite composites [J].

Barquist, Karna ;

Larsen, Sarah C. .

MICROPOROUS AND MESOPOROUS MATERIALS, 2010, 130 (1-3) :197-202

[5] Catalytic reduction of 4-nitrophenol by magnetically recoverable Au nanocatalyst [J].

Chang, Yang-Chuang ;

Chen, Dong-Hwang .

JOURNAL OF HAZARDOUS MATERIALS, 2009, 165 (1-3) :664-669

[6] A perspective on 30 years research on chitin and chitosan [J].

Domard, A. .

CARBOHYDRATE POLYMERS, 2011, 84 (02) :696-703

[7] Metal nanoparticles with high catalytic activity in degradation of methyl orange: An electron relay effect [J].

Gupta, Nikesh ;

Singh, Henam Premananda ;

Sharma, Rakesh Kumar .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2011, 335 (1-2) :248-252

[8] Microwave-assisted synthesis of small Ru nanoparticles and their role in degradation of congo red [J].

Gupta, Sakshi ;

Giordano, Cristina ;

Gradzielski, Michael ;

Mehta, Surinder K. .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2013, 411 :173-181

[9] Rapid removal of heavy metal cations and anions from aqueous solutions by an amino-functionalized magnetic nano-adsorbent [J].

Huang, Shih-Hung ;

Chen, Dong-Hwang .

JOURNAL OF HAZARDOUS MATERIALS, 2009, 163 (01) :174-179

[10] Catalytic activity of supported au nanoparticles deposited from block copolymer micelles [J].

Jaramillo, TF ;

Baeck, SH ;

Roldan Cuenya, B ;

McFarland, EW .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (24) :7148-7149

← 1 2 3 4 5 →