Preparation of ZrO<sub>2</sub>/Graphene Oxide/TiO<sub>2</sub> Composite Photocatalyst and Its Studies on Decomposition of Organic Matter
Water polluted by organic dyes is a serious environmental problem. In response to this, the aim of this research is to degrade dye wastewater using a modified photocatalyst. Since sunlight only has less than 5% UV energy, for a general photocatalyst, using sunlight for excitation to decompose organi...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-12-01
|
| Series: | Journal of Composites Science |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2504-477X/6/1/9 |
| _version_ | 1797492943225880576 |
|---|---|
| author | Yu-Hsun Nien Jhih-Fong Chen Cai-Yin Fang Ming-Sheng Liu |
| author_facet | Yu-Hsun Nien Jhih-Fong Chen Cai-Yin Fang Ming-Sheng Liu |
| author_sort | Yu-Hsun Nien |
| collection | DOAJ |
| description | Water polluted by organic dyes is a serious environmental problem. In response to this, the aim of this research is to degrade dye wastewater using a modified photocatalyst. Since sunlight only has less than 5% UV energy, for a general photocatalyst, using sunlight for excitation to decompose organic pollutants is not an effective way. Therefore, we manufactured the modified photocatalyst by zirconium dioxide, graphene oxide, and titanium dioxide. This was to better improve the photo-degradation efficiency for the degradation of organic pollutants. The modified photocatalyst was analyzed by X-ray diffractometer (XRD), Fourier-transform infrared spectroscopy (FT-IR), Raman spectroscopy (Raman), Scanning Electron Microscope (SEM), and Energy-dispersive X-ray spectroscopy (EDS). The results demonstrated that the modified photocatalyst can be activated by the absorption of visible light. Additionally, the band gap of the modified photocatalyst would decrease. The photodegradation percentage of the modified photocatalyst under visible light (Philips TL-D 8W/865 fluorescent tube) for 4 h reached up to 49.92%. At the third test after ultrasonic washing for the cyclic test, the photodegradation percentage of the modified photocatalyst could still maintain at 47.71%. This indicates that the modified photocatalyst has good stability and reusability, and so this can be reused in this regard. |
| first_indexed | 2024-03-10T01:12:54Z |
| format | Article |
| id | doaj.art-14b66e92a197407a8d7881e4c9eb3b32 |
| institution | Directory Open Access Journal |
| issn | 2504-477X |
| language | English |
| last_indexed | 2024-03-10T01:12:54Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Composites Science |
| spelling | doaj.art-14b66e92a197407a8d7881e4c9eb3b322023-11-23T14:14:44ZengMDPI AGJournal of Composites Science2504-477X2021-12-0161910.3390/jcs6010009Preparation of ZrO<sub>2</sub>/Graphene Oxide/TiO<sub>2</sub> Composite Photocatalyst and Its Studies on Decomposition of Organic MatterYu-Hsun Nien0Jhih-Fong Chen1Cai-Yin Fang2Ming-Sheng Liu3Department of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Douliou 64002, TaiwanDepartment of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Douliou 64002, TaiwanDepartment of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Douliou 64002, TaiwanDepartment of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Douliou 64002, TaiwanWater polluted by organic dyes is a serious environmental problem. In response to this, the aim of this research is to degrade dye wastewater using a modified photocatalyst. Since sunlight only has less than 5% UV energy, for a general photocatalyst, using sunlight for excitation to decompose organic pollutants is not an effective way. Therefore, we manufactured the modified photocatalyst by zirconium dioxide, graphene oxide, and titanium dioxide. This was to better improve the photo-degradation efficiency for the degradation of organic pollutants. The modified photocatalyst was analyzed by X-ray diffractometer (XRD), Fourier-transform infrared spectroscopy (FT-IR), Raman spectroscopy (Raman), Scanning Electron Microscope (SEM), and Energy-dispersive X-ray spectroscopy (EDS). The results demonstrated that the modified photocatalyst can be activated by the absorption of visible light. Additionally, the band gap of the modified photocatalyst would decrease. The photodegradation percentage of the modified photocatalyst under visible light (Philips TL-D 8W/865 fluorescent tube) for 4 h reached up to 49.92%. At the third test after ultrasonic washing for the cyclic test, the photodegradation percentage of the modified photocatalyst could still maintain at 47.71%. This indicates that the modified photocatalyst has good stability and reusability, and so this can be reused in this regard.https://www.mdpi.com/2504-477X/6/1/9ZrO<sub>2</sub>TiO<sub>2</sub>photocatalyst |
| spellingShingle | Yu-Hsun Nien Jhih-Fong Chen Cai-Yin Fang Ming-Sheng Liu Preparation of ZrO<sub>2</sub>/Graphene Oxide/TiO<sub>2</sub> Composite Photocatalyst and Its Studies on Decomposition of Organic Matter Journal of Composites Science ZrO<sub>2</sub> TiO<sub>2</sub> photocatalyst |
| title | Preparation of ZrO<sub>2</sub>/Graphene Oxide/TiO<sub>2</sub> Composite Photocatalyst and Its Studies on Decomposition of Organic Matter |
| title_full | Preparation of ZrO<sub>2</sub>/Graphene Oxide/TiO<sub>2</sub> Composite Photocatalyst and Its Studies on Decomposition of Organic Matter |
| title_fullStr | Preparation of ZrO<sub>2</sub>/Graphene Oxide/TiO<sub>2</sub> Composite Photocatalyst and Its Studies on Decomposition of Organic Matter |
| title_full_unstemmed | Preparation of ZrO<sub>2</sub>/Graphene Oxide/TiO<sub>2</sub> Composite Photocatalyst and Its Studies on Decomposition of Organic Matter |
| title_short | Preparation of ZrO<sub>2</sub>/Graphene Oxide/TiO<sub>2</sub> Composite Photocatalyst and Its Studies on Decomposition of Organic Matter |
| title_sort | preparation of zro sub 2 sub graphene oxide tio sub 2 sub composite photocatalyst and its studies on decomposition of organic matter |
| topic | ZrO<sub>2</sub> TiO<sub>2</sub> photocatalyst |
| url | https://www.mdpi.com/2504-477X/6/1/9 |
| work_keys_str_mv | AT yuhsunnien preparationofzrosub2subgrapheneoxidetiosub2subcompositephotocatalystanditsstudiesondecompositionoforganicmatter AT jhihfongchen preparationofzrosub2subgrapheneoxidetiosub2subcompositephotocatalystanditsstudiesondecompositionoforganicmatter AT caiyinfang preparationofzrosub2subgrapheneoxidetiosub2subcompositephotocatalystanditsstudiesondecompositionoforganicmatter AT mingshengliu preparationofzrosub2subgrapheneoxidetiosub2subcompositephotocatalystanditsstudiesondecompositionoforganicmatter |