Continuous Synthesis of Ag/AgCl/ZnO Composites Using Flow Chemistry and Photocatalytic Application,Industrial & Engineering Chemistry Research

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Continuous Synthesis of Ag/AgCl/ZnO Composites Using Flow Chemistry and Photocatalytic Application
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2018-02-22 00:00:00 , DOI: 10.1021/acs.iecr.7b05263
Sha Tao _{1,

2} , Mei Yang ₁ , Huihui Chen _{1,

2} , Shuainan Zhao _{1,

2} , Guangwen Chen ₁

Affiliation

Ag/AgCl/ZnO composites were successfully synthesized in a continuous microfluidic system under visible light irradiation, which was employed in situ to reduce a portion of AgCl to metallic Ag. The formation of Ag/AgCl/ZnO composites was confined in small aqueous plugs, which were dispersed by octane as the continuous phase. In this way, enhanced mixing, low risk of channel clogging, and uniform light distribution were achieved. The characterization results revealed that the as-prepared Ag/AgCl/ZnO composites were composed of flowerlike ZnO with Ag/AgCl nanospheres anchored to them. It was found that the synthesis parameters such as water/oil volume flow ratio, total volume flow rate, temperature, and the molar ratio of Zn²⁺ to Ag⁺ had effects on the synthesis of Ag/AgCl/ZnO composites. Furthermore, the as-prepared Ag/AgCl/ZnO composites outperformed Ag/ZnO composites and AgCl/ZnO composites in the visible-light-driven degradation of methyl orange.

中文翻译：

流动化学法和光催化法连续合成Ag / AgCl / ZnO复合材料

Ag / AgCl / ZnO复合材料是在可见光照射下在连续微流体系统中成功合成的，该复合材料原位用于将一部分AgCl还原为金属Ag。Ag / AgCl / ZnO复合材料的形成被限制在小的含水栓塞中，该栓塞被辛烷作为连续相分散。以这种方式，实现了增强的混合，低的通道堵塞风险以及均匀的光分布。表征结果表明，所制备的Ag / AgCl / ZnO复合材料是由花状ZnO和固定在其上的Ag / AgCl纳米球组成的。发现水/油体积流量比，总体积流量，温度，Zn ²⁺与Ag ⁺的摩尔比等合成参数对Ag / AgCl / ZnO复合材料的合成有影响。此外，在可见光驱动的甲基橙降解中，制备的Ag / AgCl / ZnO复合材料的性能优于Ag / ZnO复合材料和AgCl / ZnO复合材料。

更新日期：2018-02-22

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