Solar Induced Photocatalytic Degradation of Methylene Blue by CdS/Ag2O Nanocomposites

被引：27

作者：

Sophia, P. Joice ^{[1
]}

Balaji, D. ^{[2
,3
]}

Peters, T. James Caleb ^{[1
]}

Chander, D. Sathish ^{[1
]}

Rishaban, S. Vishwath ^{[1
]}

Shanthi, P. Vijaya ^{[1
]}

Nagavenkatesh, K. R. ^{[1
]}

Kumar, M. Rajesh ^{[4
]}

机构：

[1] Aaivalayam DIRAC, Ctr Adv Mat, Coimbatore 641046, Tamil Nadu, India

[2] Ist Italiano Tecnol, Nanochem Dept, I-16163 Genoa, Italy

[3] Univ Genoa, Dipartimento Chim & Chim Ind, I-16146 Genoa, Italy

[4] Ural Fed Univ, Inst Nat Sci & Math, Ekaterinburg 620002, Russia

来源：

CHEMISTRYSELECT | 2020年 / 5卷 / 14期

关键词：

CdS; Ag2O nanocomposites; Co-precipitation; photocatalysis; Methylene Blue dye; water purification; HYDROGEN-PRODUCTION; AQUEOUS-SOLUTION; CDS; DYE; ZNS; PERFORMANCE; HYBRID;

D O I：

10.1002/slct.202000475

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Present investigation reports the synthesis of stable as well as visible-light active CdS/Ag2O nanocomposite photocatalysts in three varied ratios to be engaged in degradation of methylene blue (MB) dye. As-synthesized photocatalysts have been characterized with the aid of diverse characterization techniques such as X-ray diffraction (XRD), FT-Raman, Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), UV-visible and Photoluminescence (PL) spectroscopy, and transmission electron microscopy (TEM). XRD pattern clearly depicts the presence of hexagonal CdS phase and cubic Ag2O phase. Results show a remarkable enhancement of photocatalytic activity for MB degradation especially for CdS/Ag2O nanocomposite with maximum efficiency up to 88.8 %. Moreover, the effective bandgap of CdS/Ag2O (1 : 2) nanocomposite has been significantly reduced to 1.71 eV from pure CdS (2.15 eV). It can be derived that CdS/Ag2O photocatalysis may be envisaged for treatment of diluted waste water containing organic pollutants.

引用

页码：4125 / 4135

页数：11

共 33 条

[1] Ag2O nanoparticles/MnCO3, -MnO2 or -Mn2O3/highly reduced graphene oxide composites as an efficient and recyclable oxidation catalyst [J].

Assal, Mohamed E. ;

Shaik, Mohammed Rafi ;

Kuniyil, Mufsir ;

Khan, Mujeeb ;

Al-Warthan, Abdulrahman ;

Alharthi, Abdulrahman Ibrahim ;

Varala, Ravi ;

Siddiqui, Mohammed Rafiq H. ;

Adil, Syed Farooq .

ARABIAN JOURNAL OF CHEMISTRY, 2019, 12 (01) :54-68

[2] Degradation of Methylene Blue Dye in the Presence of Visible Light Using SiO2@-Fe2O3 Nanocomposites Deposited on SnS2 Flowers [J].

Balu, Sridharan ;

Uma, Kasimayan ;

Pan, Guan-Ting ;

Yang, Thomas C. -K. ;

Ramaraj, Sayee Kannan .

MATERIALS, 2018, 11 (06)

[3] Photodegradation Activity of Nitrogen-rich Graphitic Carbon Nitride Intercalated ZnO\Mg-Al Layered Double Hydroxide Ternary Nanocomposites on Methylene Blue Dye [J].

Bhuvaneswari, Kandasamy ;

Palanisamy, Govindasamy ;

Pazhanivel, Thangavelu ;

Maiyalagan, Thandavarayan ;

Bharathi, Ganapathi .

CHEMISTRYSELECT, 2019, 4 (11) :2982-2990

[4] Photocatalytic Performance on Visible Light Induced ZnS QDs-MgAl Layered Double Hydroxides Hybrids for Methylene Blue Dye Degradation [J].

Bhuvaneswari, Kandasamy ;

Palanisamy, Govindasamy ;

Pazhanivel, Thangavelu ;

Bharathi, Ganapathi ;

Nataraj, Devaraj .

CHEMISTRYSELECT, 2018, 3 (47) :13419-13426

[5] RAMAN INVESTIGATIONS OF THE SURFACE-MODES OF THE CRYSTALLITES IN CDS THIN-FILMS GROWN BY PULSED LASER AND THERMAL EVAPORATION [J].

CHUU, DS ;

DAI, CM ;

HSIEH, WF ;

TSAI, CT .

JOURNAL OF APPLIED PHYSICS, 1991, 69 (12) :8402-8404

[6] Synthesis, characterization and photocatalytic activity of LaNdZr2O7 supported SnSe nanocomposites for the degradation of Foron blue dye [J].

Karamat, Nazia ;

Ehsan, Muhammad Fahad ;

Ashiq, Muhammad Naeem ;

Ijaz, Sana ;

Najam-ul-Haq, Muhammad ;

Hamid, Saher ;

Bahnemann, Detlef W. .

APPLIED SURFACE SCIENCE, 2019, 463 :1019-1027

[7] TiO2-assisted photocatalytic degradation of azo dyes in aqueous solution: kinetic and mechanistic investigations - A review [J].

Konstantinou, IK ;

Albanis, TA .

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY, 2004, 49 (01) :1-14

[8] Synthesis and study of optical and thermal properties of Mn doped CdS nanoparticles using polyvinylpyrrolidone [J].

Kumar, M. Rajesh ;

Murugadoss, G. .

JOURNAL OF LUMINESCENCE, 2014, 146 :325-332

[9] Porous boron nitride nanosheets for effective water cleaning [J].

Lei, Weiwei ;

Portehault, David ;

Liu, Dan ;

Qin, Si ;

Chen, Ying .

NATURE COMMUNICATIONS, 2013, 4

[10] TiO2 nanotubes incorporated with CdS for photocatalytic hydrogen production from splitting water under visible light irradiation [J].

Li, Caolong ;

Yuan, Jian ;

Han, Bingyan ;

Jiang, Li ;

Shangguan, Wenfeng .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2010, 35 (13) :7073-7079

← 1 2 3 4 →