Congo red decomposition by photocatalytic formation of hydroxyl radicals (•OH) using titanium metal-organic frameworks

被引：43

作者：

Castellanos, Nelson J. ^{[1
]}

Martinez Rojas, Zulied ^{[1
]}

Camargo, Hernando A. ^{[2
]}

Biswas, Shyam ^{[3
]}

Granados-Oliveros, Gilma ^{[4
]}

机构：

[1] Univ Nacl Colombia, Fac Sci, Dept Chem, ESCA, Carrera 30 45-03, Bogota, Colombia

[2] Univ Santo Tomas, Fac Quim Ambiental, GINMEA, Campus Univ Floridablanca, Santander, Colombia

[3] Indian Inst Technol Guwahati, Dept Chem, Gauhati 781039, Assam, India

[4] Univ Nacl Colombia, Fac Sci, Dept Chem, Nuevos Mat Nano & Supramol, Carrera 30 45-03, Bogota, Colombia

来源：

TRANSITION METAL CHEMISTRY | 2019年 / 44卷 / 01期

关键词：

POTASSIUM FERRIOXALATE; NANOCRYSTALLINE TIO2; CHEMICAL ACTINOMETER; BAND-GAP; AZO DYES; DEGRADATION; ADSORPTION; REMOVAL; DECOLORIZATION; SEMICONDUCTOR;

D O I：

10.1007/s11243-018-0271-z

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In this work, two well-known titanium-type metal-organic framework (MOF) solids named MIL-125 and MIL-125-NH2 were successfully synthesized using a solvothermal method. The structure of the catalytic materials was confirmed by X-ray powder diffraction, infrared spectroscopy, N-2 adsorption-desorption measurements, thermogravimetric analysis and UV-Vis diffuse reflectance spectroscopy analysis. An azo dye, Congo red, was used as model pollutant to study its photocatalytic activity under UV-Vis light irradiation. A comparison with the commercial TiO2 P-25 revealed both the beneficial effect of the porous structure of MOFs and the influence of the -NH2 group on the light activation process. Formation of hydroxyl radicals ( (center dot) OH) by catalysts was evaluated by luminol degradation probing. Finally, the titanium MOF catalysts can be recycled and reused without significant loss of activity.

引用

页码：77 / 87

页数：11

共 65 条

[1] Semiconductor behavior of a metal-organic framework (MOF) [J].

Alvaro, Mercedes ;

Carbonell, Esther ;

Ferrer, Belen ;

Llabres i Xamena, Francesc X. ;

Garcia, Hermenegildo .

CHEMISTRY-A EUROPEAN JOURNAL, 2007, 13 (18) :5106-5112

[2] One step effective removal of Congo Red in chitosan nanoparticles by encapsulation [J].

Alver, Erol ;

Bulut, Mehmet ;

Metin, Aysegul Ulku ;

Ciftci, Hakan .

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2017, 171 :132-138

[3] Photosensitive titanium and zirconium Metal Organic Frameworks: Current research and future possibilities [J].

Amador, Ricardo Navarro ;

Carboni, Michael ;

Meyer, Daniel .

MATERIALS LETTERS, 2016, 166 :327-338

[4]

Bellamy L., 1963, The Infra-Red Spectra of Complex Molecules

[5] Azo dyes in clothing textiles can be cleaved into a series of mutagenic aromatic amines which are not regulated yet [J].

Bruschweiler, Beat J. ;

Merlot, Cedric .

REGULATORY TOXICOLOGY AND PHARMACOLOGY, 2017, 88 :214-226

[6] Engineering Metal Organic Frameworks for Heterogeneous Catalysis [J].

Corma, A. ;

Garcia, H. ;

Llabres i Xamena, F. X. L. I. .

CHEMICAL REVIEWS, 2010, 110 (08) :4606-4655

[7] A multifunctional Ni(II) coordination polymer: synthesis, crystal structure and applications as a luminescent sensor, electrochemical probe, and photocatalyst [J].

Cui, Jing-Wang ;

Hou, Suo-Xia ;

Li, Yue-Hua ;

Cui, Guang-Hua .

DALTON TRANSACTIONS, 2017, 46 (48) :16911-16924

[8] Industrial applications of metal-organic frameworks [J].

Czaja, Alexander U. ;

Trukhan, Natalia ;

Mueller, Ulrich .

CHEMICAL SOCIETY REVIEWS, 2009, 38 (05) :1284-1293

[9] A New Photoactive Crystalline Highly Porous Titanium(IV) Dicarboxylate [J].

Dan-Hardi, Meenakshi ;

Serre, Christian ;

Frot, Theo ;

Rozes, Laurence ;

Maurin, Guillaume ;

Sanchez, Clement ;

Ferey, Gerard .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (31) :10857-+

[10] Sonocatalytic rapid degradation of Congo red dye from aqueous solution using magnetic Fe0/polyaniline nanofibers [J].

Das, Raghunath ;

Bhaumik, Madhumita ;

Giri, Somnath ;

Maity, Arjun .

ULTRASONICS SONOCHEMISTRY, 2017, 37 :600-613

← 1 2 3 4 5 6 7 →