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photo catalytic degradation of phenol red dye from contaminated water over nanosize tio2 n doped tio2 tio2 wo3 and n doped tio2 wo3
| Content Provider | Semantic Scholar |
|---|---|
| Author | Hiluf, Hayelom Yadav, Om Prakash Taddesse, Abi M. |
| Copyright Year | 2019 |
| Abstract | Nano size TiO2, N-doped TiO2, TiO2/WO3 and N-doped TiO2/WO3 composite semiconductor photo-catalysts powders were prepared following sol-gel and solid phase reaction techniques and characterized using XRD, SEM, EDS and UV-Visible spectroscopic techniques. As revealed from X-ray diffraction analysis, the crystallite size of synthesized material was within 9 to 12 nm. XRD patterns revealed that TiO2 powder existed in anatase as well as rutile phases, while WO3 existed in monoclinic form. UV-visible diffuse absorption spectra indicated that absorption edge of N-doped TiO2, TiO2/WO3 and N-doped TiO2/WO3 well extends to visible region compared to pure TiO2. Photo-catalytic activities of as-synthesized nanoparticles were compared using degradation of phenol red dye, as a probe. Doping of nitrogen and compositing WO3 with TiO2 both had synergetic effect towards improving the photo-catalytic activity of TiO2. Using N-doped TiO2/WO3 photo-catalyst, phenol red in its 50 mgL -1 solution with photo-catalyst load 150 mgL-1 could be degraded up to 74.7 and 92.6 %, under UV and solar radiation, respectively. The results show that the above composite photo-catalyst may be recommended for low-cost and efficient treatment of bulk or effluent water contaminated with phenol red, using solar radiation. DOI: 10.29011/IJPR -109.100009 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://www.gavinpublishers.com/admin/assets/articles_pdf/1572505171article_pdf1938685409.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
