TiO2和H2O2对紫外-C光催化降解PHODAMINE B高效处理污染废水的影响

IF 0.9 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY
N. Harun, C. Sheng, M. Sabri, A. N. Dagang, H. Salleh
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引用次数: 3

摘要

利用半导体光催化剂去除废水中的毒素或污染物已成为光催化废水处理的重要课题。本研究首先以TiO2为光催化剂,在短波(高能)UV-C光照射下,对自来水中罗丹明B (RB)染料进行了光催化降解研究。结果表明,TiO2与UV-C光结合可显著提高RB的降解率。此外,在含TiO2的RB溶液中加入过氧化氢(H2O2),提高RB染料的降解效率。结果表明,在含有0.5 g/l TiO2和1 M H2O2浓度的溶液中,在180 min的辐照时间内,20 ppm RB的降解效率达到98%,高于文献报道的值。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
IMPACT OF TiO2 AND H2O2 ON PHOTOCATALYTIC DEGRADATION OF PHODAMINE B UNDER ULTRAVIOLET C (UV-C) RADIATION FOR EFFICIENT POLLUTED WASTEWATER TREATMENT
Photocatalytic wastewater treatments applying the semiconductor photocatalysts to remove toxins or pollutants from wastewater become more important nowadays. In this study, the photocatalytic study was firstly conducted on the photodegradation of rhodamine B (RB) dye in tap water by using TiO2 as photocatalysts under short wavelength (high energy) UV-C light irradiation. The results show that a considerable increase in the degradation of RB can be obtained through a combination of TiO2 and UV-C light. In addition, hydrogen peroxide (H2O2) was added in the RB solution containing TiO2 to improve the degradation efficiency of RB dyes. The result shows that 98 % degradation efficiency of 20 ppm RB is achieved within 180 min irradiation time in the solution containing 0.5 g/l TiO2 and 1 M H2O2 concentrations, which is higher than the reported literature value.
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来源期刊
Journal of Optoelectronic and Biomedical Materials
Journal of Optoelectronic and Biomedical Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-
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