Preparation and Photocatalytic Properties of CdS and ZnS Nanomaterials Derived from Metal Xanthate
作者： Neli Mintcheva , Gospodinka Gicheva , Marinela Panayotova , Wilfried Wunderlich , Aleksandr A. Kuchmizhak
DOI: 10.3390/MA12203313
关键词: Nuclear chemistry 、 Photocatalysis 、 Materials science 、 Nanomaterials 、 Absorbance 、 Metal 、 Band gap 、 Xanthate 、 Nanoparticle 、 Potential well
摘要: In this paper, we report a new, simple method for the synthesis of CdS and ZnS nanoparticles (NPs) prepared in basic aqueous medium using metal xanthate as sulfur source. The structure, morphology, size distribution, optical band gap, photocatalytic properties newly obtained nanomaterials were investigated by UV-Vis spectroscopy, X-ray diffraction, transmission electron microscopy. results show that both crystallized cubic phase formed NPs with average sizes 7.0 4.2 nm ZnS, respectively. A blue shift absorbance higher energy gap values observed materials comparison their bulk counterparts, which is accordance quantum confinement effect. as-prepared tested visible-light driven decomposition methylene (MB). After irradiation 180 min, degradation rate MB concentration 8 × 10−6 mol/L mixed photocatalyst (CdS or 10 mg 100 mL solution MB) was found to be 72% 61%, showed better activity than could explained lower thus ability absorb light more efficiently when activated irradiation.
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Nayereh Soltani, Elias Saion, Mohd Zobir Hussein, Maryam Erfani, Alam Abedini, Ghazaleh Bahmanrokh, Manizheh Navasery, Parisa Vaziri, Visible Light-Induced Degradation of Methylene Blue in the Presence of Photocatalytic ZnS and CdS Nanoparticles International Journal of Molecular Sciences. ,vol. 13, pp. 12242- 12258 ,(2012) , 10.3390/IJMS131012242
Rama Gaur, P. Jeevanandam, Evolution of different morphologies of CdS nanoparticles by thermal decomposition of bis(thiourea)cadmium chloride in various solvents Journal of Nanoparticle Research. ,vol. 17, pp. 156- ,(2015) , 10.1007/S11051-015-2961-1
Maria Stoyanova, Stoyanka Christoskova, Catalytic degradation of methylene blue in aqueous solutions over Ni- and Co- oxide systems Central European Journal of Chemistry. ,vol. 9, pp. 1000- 1007 ,(2011) , 10.2478/S11532-011-0086-7
Shan-shan Sun, Qiao-feng Han, Xiao-dong Wu, Jun-wu Zhu, Xin Wang, The facile synthesis of PbS cubes and Bi2S3 nanoflowers from molecular precursors at room temperature Materials Letters. ,vol. 65, pp. 3344- 3347 ,(2011) , 10.1016/J.MATLET.2011.07.030
Damian C. Onwudiwe, Christien Strydom, Oluwatobi S. Oluwafemi, Sandile P. Songca, Effect of temperature on the optical and structural properties of hexadecylamine capped ZnS nanoparticles using Zinc(II) N-ethyl-N-phenyldithiocarbamate as single source precursor Materials Research Bulletin. ,vol. 47, pp. 4445- 4451 ,(2012) , 10.1016/J.MATERRESBULL.2012.09.038
Gang Wang, Baibiao Huang, Zhujie Li, Zaizhu Lou, Zeyan Wang, Ying Dai, Myung-Hwan Whangbo, Synthesis and characterization of ZnS with controlled amount of S vacancies for photocatalytic H2 production under visible light Scientific Reports. ,vol. 5, pp. 8544- 8544 ,(2015) , 10.1038/SREP08544
S. Wageh, Zhao Su Ling, Xu Xu-Rong, Growth and optical properties of colloidal ZnS nanoparticles Journal of Crystal Growth. ,vol. 255, pp. 332- 337 ,(2003) , 10.1016/S0022-0248(03)01258-2
J. Tauc, R. Grigorovici, A. Vancu, Optical Properties and Electronic Structure of Amorphous Germanium physica status solidi (b). ,vol. 15, pp. 627- 637 ,(1966) , 10.1002/PSSB.19660150224
P. Sreekumari Nair, Thottackad Radhakrishnan, Neerish Revaprasadu, Gabriel Kolawole, Paul O'Brien, Cadmium ethylxanthate: A novel single-source precursor for the preparation of CdS nanoparticles Journal of Materials Chemistry. ,vol. 12, pp. 2722- 2725 ,(2002) , 10.1039/B202072F
Narayan Pradhan, Beni Katz, Shlomo Efrima, Synthesis of high-quality metal sulfide nanoparticles from alkyl xanthate single precursors in alkylamine solvents Journal of Physical Chemistry B. ,vol. 107, pp. 13843- 13854 ,(2003) , 10.1021/JP035795L