TY - JOUR ID - 67765 TI - Facile Synthesis of Zn-TiO2 Nanostructure, Using Green Tea as an Eco-Friendly Reducing Agent for Photodegradation of Organic Pollutants in Water JO - Pollution JA - POLL LA - en SN - 2383-451X AU - tavakoli, F. AU - Badiei, A. AD - School of Chemistry, College of Science, University of Tehran, Tehran, Iran. Y1 - 2018 PY - 2018 VL - 4 IS - 4 SP - 687 EP - 696 KW - Zn-TiO2 KW - Green Synthesis KW - green tea KW - Photocatalyst KW - Acid Orange 7 DO - 10.22059/poll.2018.252226.392 N2 - The present study synthesizes Zn-TiO2 photocatalyst via a simple and economic green rout, in which Green Tea is applied as a green reducing agent due to the presence of polyphenols Molecules. Polyphenol molecules in green tea act as a reductant, thus changing Zn2+ to metallic Zn. The by-produced nanocmposites are characterized by using XRD, FESEM, EDS, and DRS. Zn-TiO2 photocatalyst possesses great efficient charge separation properties. In order to investigate the presence of Zn, different weight ratio of Zn to TiO2 (viz. 5 wt%, 10 wt%, 15 wt%, 20 wt%, 25 wt%, 30 wt%, 35 wt%, 40 wt%, 45 wt%, and 50 wt%) have been synthesized and their performance in Acid Orange 7 (AO7) photodegradation, compared with pure TiO2. According to the results, the compound with 25 wt% Zn shows 97% degradation of AO7 as a model pollutant. Also, it has been shown that after three tests with EDTA, benzoic acid, and under Ar gas, photodegradation of AO7 with Zn-TiO2 photocatalyst mainly depends on photogenerated holes. UR - https://jpoll.ut.ac.ir/article_67765.html L1 - https://jpoll.ut.ac.ir/article_67765_6963609b6ca2434e24ba8146814d6c56.pdf ER -