Characterization and photocatalytic properties of TiO2/chitosan nanocomposites synthesized by hydrothermal process

被引：7

作者：

Sayilkan, Funda ^{[1
,2
]}

Emre, Fatma Bilge ^{[1
,2
]}

机构：

[1] Inonu Univ, Sci & Technol Res Ctr, Prof Dr Hikmet Sayilkan Adv Mat Res & Applicat La, Malatya, Turkey

[2] Inonu Univ, Fac Educ, Dept Elementary Educ, Malatya, Turkey

来源：

TURKISH JOURNAL OF CHEMISTRY | 2016年 / 40卷 / 01期

关键词：

Nanocomposite; photocatalytic activity; photodegradation; hydrothermal process; MALACHITE GREEN-DYE; AZO-DYE; DEGRADATION; TIO2; CHITOSAN; REMOVAL; MICROWAVE; ZNO; IRRADIATION; MECHANISM;

D O I：

10.3906/kim-1407-7

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nanocomposites of TiO2/chitosan (nTC) were synthesized by hydrothermal process at 200 degrees C. Photo-catalytic activity of the nanocomposites was studied with degradation of malachite green (MG) in aqueous medium. Structural and physico-chemical properties of the obtained nanocomposites were characterized by XRD, SEM, BET, FTIR, and particle size analyzer. Complete photodegradation of MG was successfully achieved with the aid of the nanocomposites. The optimum photocatalytic degradation conditions, irradiation time, irradiation power, and amount of catalyst were studied. Photocatalytic activity of the synthesized nanocomposites in terms of degradation of MG was compared with that of undoped TiO2 (synthesized by our team) and chitosan under normal conditions. It was concluded that the synthesized nanocomposites had better photocatalytic activity. The best result (100% degradation) was obtained with amount of nTC of 0.25 g and irradiation time of 120 min.

引用

页码：28 / 37

页数：10

共 48 条

[1] Inorganic gels as precursors of TiO2 photocatalysts prepared by low temperature microwave or thermal treatment [J].

Addamo, Maurizio ;

Bellardita, Marianna ;

Carriazo, Daniel ;

Di Paola, Agatino ;

Milioto, Stefania ;

Palmisano, Leonardo ;

Rives, Vicente .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2008, 84 (3-4) :742-748

[2] Using of activated carbon produced from spent tea leaves for the removal of malachite green from aqueous solution [J].

Akar, Emine ;

Altinisik, Aylin ;

Seki, Yoldas .

ECOLOGICAL ENGINEERING, 2013, 52 :19-27

[3] Photocatalytic activity of ZnO impregnated Hβ and mechanical mix of ZnO/Hβ in the degradation of monocrotophos in aqueous solution [J].

Anandan, S. ;

Vinu, A. ;

Venkatachalam, N. ;

Arabindoo, B. ;

Murugesan, V. .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2006, 256 (1-2) :312-320

[4] An investigation on the short-term biodegradability of chitosan with various molecular weights and degrees of deacetylation [J].

Bagheri-Khoulenjani, S. ;

Taghizadeh, S. M. ;

Mirzadeh, H. .

CARBOHYDRATE POLYMERS, 2009, 78 (04) :773-778

[5]

Balachandaran K., 2010, INT J ENG SCI TECHNO, V2, P3695

[6] Charge transfer reductive doping of nanostructured TiO2 thin film's as a way to improve their photoelectrocatalytic performance [J].

Berger, Thomas ;

Lana-Villarreal, Teresa ;

Monllor-Satoca, Damian ;

Gomez, Roberto .

ELECTROCHEMISTRY COMMUNICATIONS, 2006, 8 (11) :1713-1718

[7]

Bilton M., 2012, Open J. Inorg. Non Met. Mater, P1, DOI [10.4236/ojinm.2012.21001., DOI 10.4236/OJINM.2012.21001, 10.4236/ojinm.2012.21001]

[8] Clarification of fruit juice with chitosan [J].

Chatterjee, S ;

Chatterjee, BP ;

Guha, AK .

PROCESS BIOCHEMISTRY, 2004, 39 (12) :2229-2232

[9] Chitosan-based biomaterials for tissue engineering [J].

Croisier, Florence ;

Jerome, Christine .

EUROPEAN POLYMER JOURNAL, 2013, 49 (04) :780-792

[10]

Culp SJ, 1996, J AM COLL TOXICOL, V15, P219, DOI 10.3109/10915819609008715

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