当前位置: X-MOL 学术J. Taiwan Inst. Chem. E. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Integration of Bi4O5I2 nanoparticles with ZnO: Impressive visible-light-induced systems for elimination of aqueous contaminants
Journal of the Taiwan Institute of Chemical Engineers ( IF 5.7 ) Pub Date : 2021-01-23 , DOI: 10.1016/j.jtice.2021.01.020
Seyyedeh Samira Madani , Aziz Habibi-Yangjeh , Soheila Asadzadeh-Khaneghah , Hushan Chand , Venkata Krishnan , Amir Zada

In the present work, ZnO/Bi4O5I2 nanocomposites were constructed through refluxing procedure. The Nyquist plot, transient photocurrent response, and photoluminescence analyses affirmed enhancement in carrier segregation efficiency in the fabricated nanocomposite. The results exhibited that the ZnO/Bi4O5I2 (20%) nanocomposite demonstrates the best efficiency for the degradation of various pollutants, as compared to the single samples under visible light. The photoactivity of the ZnO/Bi4O5I2 (20%) photocatalyst is nearly 8.09, 26.1, 8.18, 10.4, and 19.2-times premier than that of the ZnO for decontamination of fuchsine, MB, MO, RhB, and phenol respectively. Furthermore, the ameliorated ability of the ZnO/Bi4O5I2 (20%) system is 2.45, 3.25, 2.28, 2.96, and 2.84 times higher relative to the ZnO/BiOI (20%) photocatalyst in elimination of fuchsine, MB, MO, RhB, and phenol, respectively. The boosted efficiency is because of the extension of absorption towards visible area, enhanced surface area, and more charge segregation in binary system. Moreover, with various quenchers, the outcomes of scavenging tests illustrated that O2, OH, and h+ have considerable role in the photocatalytic removal process and the inhibition extent is as BQ > 2-PrOH > AO. Also, the ZnO/Bi4O5I2 (20%) nanocomposite possessed significant recycle efficiency, whose utilization had almost no significant change up to four consecutive cycles.



中文翻译:

Bi 4 O 5 I 2纳米粒子与ZnO的集成:令人印象深刻的可见光诱导系统,用于消除水性污染物

在目前的工作中,通过回流过程构建了ZnO / Bi 4 O 5 I 2纳米复合材料。奈奎斯特图,瞬态光电流响应和光致发光分析证实了所制造的纳米复合材料中载流子偏析效率的提高。结果表明,与可见光下的单个样品相比,ZnO / Bi 4 O 5 I 2(20%)纳米复合材料表现出最佳的降解各种污染物的效率。ZnO / Bi 4 O 5 I 2的光活性(20%)的光催化活性几乎是ZnO的品红,MB,MO,RhB和苯酚的去污力的ZnO的近9.0倍,26.1倍,8.18倍,10.4倍和19.2倍。此外,相对于ZnO / BiOI(20%)光催化剂,消除品红,MB的ZnO / Bi 4 O 5 I 2(20%)系统的改善能力分别高出2.45、3.25、2.28、2.96和2.84倍。 ,MO,RhB和苯酚。效率的提高是由于吸收向可见区域的扩展,表面积的增加以及二元体系中更多的电荷偏析。此外,与各种淬灭剂,清除测试的结果示出该 ö 2 - OH,和h +在光催化去除过程中起重要作用,其抑制程度为BQ> 2-PrOH> AO。另外,ZnO / Bi 4 O 5 I 2(20%)纳米复合材料具有显着的循环效率,在连续四个循环中其利用率几乎没有显着变化。

更新日期:2021-03-09
down
wechat
bug