上海弘升科技發展有限公司

上海弘升科技發展有限公司
上海弘升科技發展有限公司

当前位置:弘升科技 > 公司简介

测量应用案例-20201009

2020-10-27 13:44:46

320

文献名:Photocatalytic Degradation of 2,4-Dichlorophenoxyacetic Acid in Aqueous Solution Using Mn-doped ZnO/Graphene Nanocomposite Under LED Radiation

 

 

上海弘升科技發展有限公司 Roya Ebrahimi, Mahnaz Mohammadi, Afshin Maleki, Ali Jafari, Behzad Shahmoradi, Reza Rezaee, Mahdi Safari, Hiua Daraei, Omid Giahi, Kaan Yetilmezsoy & Shivaraju Harikaranahalli Puttaiah

 

 

摘要:Chemical pesticides and herbicides are one of the most important pollutants in urban, agricultural and industrial wastewaters. Improper discharge of these compounds into water bodies’ cause harmful effects on both environment and human health. In this study, photocatalytic degradation of 2,4-Dichlorophenoxyacetic acid (usually called 2,4-D) was investigated using Mn-doped zinc oxide/graphene nanocomposite under light emitting diodes (LED) radiation. FTIR, AFM, DLS, Zeta potential, XRD, and SEM techniques were used to determine the characteristics of the nanocomposite. The effects of process-related parameters, such as the amount of nanocomposite, initial pH, 2,4-D concentrations, and contact time, on the photocatalytic degradation of the 2,4-D were studied. The results showed that the efficiency of photocatalytic degradation of 2,4-D decreased with an increase in the initial concentration of 2,4-D, while photocatalytic degradation efficiency increased by increasing the initial pH and the nano-catalyst content. The results showed that 66.2% of 2,4-D could be photocatalytically degraded using Mn-doped zinc oxide/graphene nanocomposite under LED radiation at optimal conditions (pH 5, initial Zn concentration of 10 mg L−1, nano-composite concentration of 2 g L−1, contact time of 120 min). Findings of this experimental study concluded that photocatalysis using Mn-doped zinc oxide/graphene nanocomposite under LED radiation could efficiently remove 2,4-D herbicide from aqueous media.


分享到微信朋友圈

分享到其他

010-51627740

上海弘升科技發展有限公司 上海弘升科技發展有限公司
上海弘升科技發展有限公司