Lingfang Tang, Daixi Zhou, Jiayue Hu and Mingshan Zhu
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引用次数: 0
Abstract
The utilization of persulfate (PS) as the cornerstone of advanced oxidation processes (AOPs) is an emerging and powerful method for eliminating persistent organic pollutants in wastewater. The efficient activation of PS is a prerequisite factor in this technology. Through the strategic application of vacancy defect engineering, catalytic materials can be optimized to improve PS activation. In this review, our exploration focuses on clarifying the key role of vacancy defects in promoting PS activation and summarizing the potential mechanisms of PS activation. In addition, six widely used advanced characterization techniques and density functional theory (DFT) calculations are introduced to characterize vacancies in materials. Furthermore, we systematically summarize the methods of vacancy generation and introduce common different types of vacancy defect catalytic materials and their applications. Finally, we summarize and present the enhancement of PS activation by vacancy defect materials. This review provides new insights for us to understand the mechanism of vacancy defect materials promoting PS activation and its future development, hoping to design more efficient catalysts in the future for environment remediation.
期刊介绍:
Environmental Science: Nano serves as a comprehensive and high-impact peer-reviewed source of information on the design and demonstration of engineered nanomaterials for environment-based applications. It also covers the interactions between engineered, natural, and incidental nanomaterials with biological and environmental systems. This scope includes, but is not limited to, the following topic areas:
Novel nanomaterial-based applications for water, air, soil, food, and energy sustainability
Nanomaterial interactions with biological systems and nanotoxicology
Environmental fate, reactivity, and transformations of nanoscale materials
Nanoscale processes in the environment
Sustainable nanotechnology including rational nanomaterial design, life cycle assessment, risk/benefit analysis