Degradation of organic contaminants into less toxic substances is the best option to remove these compounds rather than using conventional techniques. The sulfate radical-based-advanced oxidation process is an effective strategy that degrades organic contaminants by activating peroxymonosulfate (PMS). Such a strategy generates singlet oxygen (¹O₂), hydroxyl (\(^ \bullet \!{{{\mathrm{OH}}}}\)), and sulfate (\({{{\mathrm{SO}}}}_4^{ \bullet\! - }\)) radicals. \({{{\mathrm{SO}}}}_4^{ \bullet \!- }\) is distinguished by its high oxidation selectivity and activity toward the degradation of organic contaminates compared to other radicals. Various catalysts are employed in PMS activation including layered doubled hydroxides (LDHs), which are characterized by their facile synthesis and high catalytic activity. This review article is the first attempt to compile the recent progress in the degradation of common organic pollutants including aromatic compounds, pharmaceutical residues, and dyes via the PMS activation using LDH-based catalysts. The degradation pathways, reaction parameters’ influence, stability of LDHs, and comparisons between different LDH-based catalysts are investigated in this work.

将有机污染物降解为毒性较小的物质是去除这些化合物的最佳选择，而不是使用传统技术。基于硫酸根的高级氧化过程是一种通过激活过氧单硫酸盐（PMS）来降解有机污染物的有效策略。这种策略会产生单线态氧 ( ¹ O ₂ )、羟基 ( \(^ \bullet \!{{{\mathrm{OH}}}}\) )和硫酸盐 ( \({{{\mathrm{SO}} }}_4^{ \bullet\! - }\) ) 自由基。\({{{\mathrm{SO}}}}_4^{ \bullet \!- }\)与其他自由基相比，其特点是具有高氧化选择性和对有机污染物降解的活性。各种催化剂用于 PMS 活化，包括层状双氢氧化物 (LDH)，其特点是易于合成和高催化活性。这篇评论文章是首次尝试通过使用基于 LDH 的催化剂通过 PMS 活化来汇编常见有机污染物（包括芳香族化合物、药物残留和染料）降解的最新进展。本文研究了降解途径、反应参数的影响、LDH 的稳定性以及不同 LDH 基催化剂之间的比较。