碳自摻雜氮化碳光催化活化過硫酸鹽降解雙酚A的試驗(yàn)研究

打開文本圖片集

摘要：本試驗(yàn)通過一步熱解制備碳自摻雜氮化碳（CCN），證實(shí)其橋接氮原子被碳原子取代，并研究可見光照射下催化劑活化過二硫酸鹽（PDS）降解雙酚A的性能。結(jié)果表明，由于離域大π鍵的形成，光激發(fā)電荷在分離和轉(zhuǎn)移方面得到極大的改善，因此CCN降解雙酚A的性能得到極大提高。

關(guān)鍵詞：碳自摻雜氮化碳；石墨相氮化碳；可見光；過二硫酸鹽活化；雙酚A

中圖分類號(hào)：X703 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1008-9500（2023）07-000-03

DOI：10.3969/j.issn.1008-9500.2023.07.002

Experimental Study on the Degradation of Bisphenol A in Photocatalytic Activation of Persulfate by Carbon Self-Doped Carbon Nitride

WANG Mifang， LIU Ning

（School of Environmental Science and Technology， Dalian University of Technology， Dalian 130024， China）

Abstract： In this experiment， carbon self-doped carbon nitride （CCN） is prepared through one-step pyrolysis， confirming that its bridging nitrogen atoms are replaced by carbon atoms， and the degradation performance of bisphenol A by catalyst activated peroxydisulfate （PDS） under visible light irradiation is studied. The results indicate that due to the formation of delocalized large π bonds， the separation and transfer of photoexcited charges have been greatly improved， resulting in a significant improvement in the performance of CCN in degrading bisphenol A.

Keywords： CCN; g-C3N4; visible light; peroxydisulfate activation; bisphenol A

雙酚A是塑料工業(yè)生產(chǎn)聚碳酸酯和環(huán)氧樹脂的重要材料[1]。（剩余3368字）