Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Resources and Environment, Hunan Agricultural University, Changsha, 410028, China.
Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Resources and Environment, Hunan Agricultural University, Changsha, 410028, China; Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, College of Chemistry and Chemical Engineering, Central South University, China.
Environ Res. 2021 Sep;200:111371. doi: 10.1016/j.envres.2021.111371. Epub 2021 May 31.
Sodium percarbonate (SPC) is considered a potential alternative to liquid hydrogen peroxide (HO) in organic compounds contaminated water/soil remediation due to its regularly, transportable, economical, and eco-friendly features. The solid state of SPC makes it more suitable to remediate actual soil and water with a milder HO release rate. Apart from its good oxidative capacity, alkaline SPC can simultaneously remediate acidized solution and soil to the neutral condition. Conventionally, percarbonate-based advanced oxidation process (P-AOPs) system proceed through the catalysis under ultraviolet ray, transition metal ions (i.e., Fe, Fe, and V), and nanoscale zero-valent metals (iron, zinc, copper, and nickel). The hydroxyl radical (OH), superoxide radical (O), and carbonate radical anion (CO) generated from sodium percarbonate could attack the organic pollutant structure. In this review, we present the advances of P-AOPs in heterogeneous and homogeneous catalytic processes through a wide range of activation methods. This review aims to give an overview of the catalysis and application of P-AOPs for emerging contaminants degradation and act as a guideline of the field advances. Various activation methods of percarbonate are summarized, and the influence factors in the solution matrix such as pH, anions, and cations are thoroughly discussed. Moreover, this review helps to clarify the advantages and shortcomings of P-AOPs in current scientific progress and guide the future practical direction of P-AOPs in sustainable carbon catalysis and green chemistry.
过碳酸钠（SPC）因其稳定、可运输、经济和环保等特点，被认为是替代液体过氧化氢（HO）用于有机化合物污染水/土壤修复的潜在替代品。SPC 的固态使其更适合温和 HO 释放率的实际土壤和水的修复。除了具有良好的氧化能力外，碱性过碳酸钠还可以同时将酸化溶液和土壤修复到中性条件。传统上，基于过碳酸盐的高级氧化工艺（P-AOPs）系统通过紫外线、过渡金属离子（如 Fe、Fe 和 V）和纳米零价金属（铁、锌、铜和镍）的催化作用进行。过碳酸钠产生的羟基自由基（OH）、超氧自由基（O）和碳酸根自由基阴离子（CO）可以攻击有机污染物结构。在这篇综述中，我们通过广泛的激活方法介绍了 P-AOPs 在多相和均相催化过程中的进展。本综述旨在概述 P-AOPs 在新兴污染物降解方面的催化和应用，并作为该领域进展的指南。总结了过碳酸盐的各种活化方法，并深入讨论了溶液基质中的影响因素，如 pH 值、阴离子和阳离子。此外，这篇综述有助于澄清 P-AOPs 在当前科学进展中的优势和劣势，并指导未来 P-AOPs 在可持续碳催化和绿色化学中的实际方向。
