화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.73, 297-305, May, 2019
DOI10.1016/j.jiec.2019.01.041  Export Citation
Photocatalytic degradation of organic dyes using WO3-doped ZnO nanoparticles fixed on a glass surface in aqueous solution
Roya Ebrahimi, Afshin Maleki†, Yahya Zandsalimi, Reza Ghanbari1, Behzad Shahmoradi, Reza Rezaee, Mahdi Safari, Sang W. Joo2, †, Hiua Daraei, Shivaraju Harikaranahalli Puttaiah3, and Omid Giahi
  • Environmental Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
  • 1Social Determinants of Health Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
  • 2School of Mechanical Engineering, Yeungnam University, Gyeongsan 712-749, Republic of Korea
  • 3Department of Water and Health, Faculty of Life Sciences, Jagadguru Sri Shivarathreeshwara University, Sri Shivarathreeshwara Nagara, Mysuru 570015, Karnataka, India
E-mail:,
The present study aimed at evaluating the application of tungsten oxide-doped zinc oxide nanoparticles for the photocatalytic degradation of Direct Blue 15 dye in a sequencing batch reactor. ZnO nanoparticles were doped with WO3 through hydrothermal synthesis method. To characterize the synthesized nanoparticles scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, atomic force microscopy, zeta potential analysis, and ultraviolet-visible spectroscopy were used. The radiation source in this study was five 6?W UV lamps. Operational parameters affecting the process, namely pH, light intensity, dopant percentage, dye concentration, and contact time, were evaluated. The results of the present study revealed that the efficiency of the photocatalytic process for the degradation of organic dyes was higher at acidic pH values than neutral or basic values. In addition, upon increasing the light intensity from 172 to 505 W/m2, the efficacy of dye degradation was enhanced from 27.8 to 73.5%. Increasing the concentration of the dopant percentage from 1 to 5% w/v increased the degradation efficacy from 30.69 to 73.1%. Increasing the initial dye concentration from 20 to 100?mg/L decreased the degradation efficacy from 86.9 to 37.5%. Photocatalytic process using WO3-doped ZnO nanoparticles fixed on a glass surface thus was proven to show a good efficiency for the degradation of organic dye in aquatic solutions.
Keywords:Photocatalytic degradation;Organic dye;Zinc oxide;WO3;Doping
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