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Synthesis of phosphonic acid silver-graphene oxide nanomaterials with photocatalytic activity through ultrasonic-assisted method
Ultrasonics Sonochemistry ( IF 8.7 ) Pub Date : 2018-02-12
Yongshen Li, Yunna Song, Zheng Ma, Shuai Niu, Jihui Li, Ning Li

In this article, phosphonic acid silver-graphene oxide nanomaterials (Nano-PAS-GO) was synthesized from silver nitrate (AgNO3) solution and phosphoric graphene oxide (PGO) via the convenient ultrasonic-assisted method, and the structure and morphology were characterized, and the photocatalytic activity and recyclability were evaluated through photocatalyzing degradation of Rhodamin B (RhB) aqueous solution, and the possible photocatalytic mechanism was also discussed. Based on those, it was confirmed that Nano-PAS-GO has been synthesized from AgNO3 solution and PGO colloidal suspension under ultrasonic-assisted condition, and Nano-PAS-GO has consisted of phosphoric acid silver nanoparticles and GO with 2D lattice (2D GO lattice) connected in the form of C-P bonds, and the photodegradation rate of Nano-PAS-GO for RhB aqueous solution has reached 93.99%, and Nano-PAS-GO has possessed the nicer recyclability when the photocatalytic time was 50 min. From those results, the strong and stable interface .between PAS nanoparticles and 2D GO lattice connected in the form of the covalent bonds has effectively inhibited the occurrence of the photocorrosion phenomenon.



中文翻译:

超声辅助法合成具有光催化活性的膦酸银-氧化石墨烯纳米材料

本文通过方便的超声辅助方法,由硝酸银(AgNO 3)溶液和氧化石墨烯(PGO)合成了膦酸银氧化石墨烯纳米材料(Nano-PAS-GO),并对其结构和形貌进行了表征。 ,并通过光催化降解若丹明B(RhB)水溶液来评估其光催化活性和可回收性,并探讨了可能的光催化机理。基于这些,证实了由AgNO 3合成了Nano-PAS-GO。溶液和超声辅助条件下的PGO胶体悬浮液,Nano-PAS-GO由磷酸银纳米颗粒和具有以CP键形式连接的2D晶格(2D GO晶格)的GO组成,Nano-PAS的光降解速率RhB水溶液的-GO达到93.99%,当光催化时间为50 min时,Nano-PAS-GO具有更好的可回收性。根据这些结果,可以得出强大而稳定的界面PAS纳米颗粒与2D GO晶格之间以共价键形式连接时,有效地抑制了光腐蚀现象的发生。

更新日期:2018-02-12
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