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论文名称：An eco-friendly photocatalytic coupling capacitive deionization system for efficient chlorophenol wastewater treatment

发表刊物：Chinese Journal of Catalysis

刊物所在地：Elsever

关键字：Photocatalysis; Chlorophenols; Capacitive deionization; BN; C3N4

摘要：Since conventional photocatalytic technology fails to achieve complete elimination of chlorophenol contaminants from aqueous environments, this study presents a synergistic photocatalysis-capacitive deionization (PC-CDI) system as an advanced solution for industrial chlorophenol wastewater remediation. The PC-CDI system, employing boron nitride/carbon nitride (BN/CN) heterojunction electrodes, demonstrates exceptional degradation performance toward chlorophenols. The high-surface-area porous BN/CN heterojunction facilitates electro-adsorption and charge carrier separation, thereby synergistically optimizing both photocatalytic (PC) and capacitive deionization (CDI) functionalities. Remarkably, the integrated system achieves a 2,4-DCP degradation efficiency of 97.15% and a 2,4,6-TCP degradation efficiency of 100% in 2 h. The CDI component enables spatial separation through the electro-adsorption of Cl ions at the anode, effectively mitigating their interference and suppressing chlorinated byproduct formation. Concurrently, the electro-adsorption of positively charged chlorophenol pollutants accelerates their diffusion to catalytic sites, promoting the reactive oxygen species (ROS)-driven degradation of chlorophenol pollutants. The PC-CDI system exhibits robust stability (>95% efficiency retention over five cycles) and broad applicability across various chlorophenol derivatives. By circumventing Cl-induced side reactions and inhibiting chlorine radical generation during photocatalysis, this strategy minimizes the environmental risks associated with chlorinated byproducts during chlorophenol wastewater treatment. These findings establish the PC-CDI system as a sustainable and eco-friendly technology for industrial wastewater treatment.

第一作者：Ziye Zheng

通讯作者：Zuoli He

全部作者：Yi Ren,Meng Dai,Hongsheng Li,Huizhen Cui,Sen Wang,Shu-guang Wang

论文类型：期刊论文

学科门类：工学

一级学科：环境科学与工程

文献类型：J

卷号：79

页面范围：148-161

DOI码：10.1016/S1872-2067(25)64839-X

字数：8000

是否译文：否

发表时间：2025-09

收录刊物：SCI

发布时间：2025-09-21