可见光和阳光照射下H2O2存在下TiO2-Fe光催化降解苯酚

L. J. Kusumawardani, A. Iryani
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引用次数: 0

摘要

苯酚是释放到环境中的重要有机污染物之一,具有较高的稳定性和毒性。低浓度对生物体、环境有害,对人体健康构成严重威胁。本研究研究了在可见光照射和额外的H2O2条件下,使用TiO2-Fe催化剂光催化降解苯酚的过程。应用各种条件过程的影响,包括不同的催化剂剂量(0.2、0.4、0.6和0.8 g/L)、pH(3、6、8和11)、照射时间(60、90、120、150和210分钟)和H2O2的存在。研究了苯酚初始浓度为5mg/L时的降解过程。本研究在催化剂剂量为0.6g/L的样品溶液、pH溶液为11、反应时间为210分钟、H2O2浓度为30%的条件下降低了苯酚含量(90.51%)。在卤素光下光降解后的最终苯酚浓度为0.18mg/L,而阳光照射为0.11mg/L。该结果低于Permen LH RI第5/2014号的政府规定,即0.5 mg/L。因此,该工艺可以去除水性如工业废水或其他资源中的苯酚。
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Photocataytic Degradation of Phenol Using TiO2-Fe Under H2O2 Presence by Visible and Sunlight Irradiation
Phenol is one of the essential organic pollutants released into the environment because of its high stability and toxicity. It is harmful to organisms, environment, and posing a serious threat to human health at low concentration. This research investigated the photocatalytic degradation process of phenol using a TiO2-Fe catalyst under visible light irradiation and additional H2O2. The effect of various conditions process was applied, including different catalyst doses (0.2, 0.4, 0.6, and 0.8 g/L), pH (3, 6, 8, and 11), irradiation times (60, 90, 120, 150, and 210 minutes) and the presence of H2O2. The degradation process was studied at an initial concentration of phenol 5 mg/L. This study has been decreasing phenol content (90.51%) with catalyst doses 0.6 g/ L sample solution, pH solution 11, reaction time 210 minutes and H2O2 concentration 30%. This final phenol concentration after photodegradation under halogen light was 0.18 mg/L, while sunlight irradiation was 0.11 mg/L. This result is below government regulation as per Permen LH RI No. 5/2014 i.e. 0.5 mg/L. Therefore, this process possible to remove phenol in aqueous such as industrial wastewater or other resources.
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来源期刊
CiteScore
0.80
自引率
0.00%
发文量
15
审稿时长
24 weeks
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