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J. Korean Ceram. Soc. > Volume 51(4); 2014 > Article
Journal of the Korean Ceramic Society 2014;51(4): 307.
doi: https://doi.org/10.4191/kcers.2014.51.4.307
Synthesis and Characterization of ZnS and ZnS/TiO2 Nanocomposites and Their Enhanced Photo-decolorization of MB and 1,5-Diphenyl Carbazide
Ze-Da Meng, Kefayat Ullah1, Lei Zhu1, Shu Ye1, Won-Chun Oh1
Jiangsu Key Laboratory of Environmental Functional Materials, College of Chemistry and Bioengineering, Suzhou University of Science and Technology
1Department of Advanced Materials Science & Engineering, Hanseo University
ABSTRACT
ZnS and $ZnS/TiO_2$ were prepared by chemical deposition. The prepared photocatalysts were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray (EDX), and transmission electron microscopy (TEM). The generation of reactive oxygen species was detected by monitoring the oxidation reaction from 1,5-diphenyl carbazide (DPCI) to 1,5-diphenyl carbazone (DPCO). Excellent catalytic degradation of methylene blue (MB) solution was observed using the $ZnS/TiO_2$ composites during irradiation with visible light. The results show that the photocatalytic performance of $TiO_2$ nanoparticles is improved by loading with ZnS.
Key words: ZnS, 1,5-diphenyl carbazide, HRTEM, Visible light, TEM, $TiO_2$
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