Spinel ferrites materials for sulfate radical-based advanced oxidation process: A review

Current Mechanism of Peroxymonosulfate Activation by Cobalt-Based Heterogeneous Catalysts in Degrading Organic Compounds

“…Spinel ferrite materials have demonstrated excellent properties and unique advantages in activating PMS, with CoFe 2 O 4 exhibiting the best activation and synergistic properties in most cases. ,, Several studies have investigated novel approaches to enhance the performance of CoFe 2 O 4 -based catalysts. For instance, Chen et al proposed a core–shell structure that effectively avoids ion leaching and improves catalytic stability.…”

La2CoO4+δ perovskite-mediated peroxymonosulfate activation for the efficient degradation of bisphenol A

“…[20][21][22] To overcome this shortage, the sulfate radical-based technology (SR-AOP) has been going through full development, due to its higher oxidative potential, longer half-life time and milder reaction conditions with a wide range of pH solutions. [23][24][25] Peroxymonosulfate (PMS) is oen used as an oxidant in SR-AOP in order to produce the sulfate radicals, which can be activated by many methods. In contrast to the energy-based activation, such as solar/UV, ultrasound, electrical and thermal activation, the catalytic activation is more commonly used due to its low-cost and efficiency in the decomposition of PMS by transition metal ions and heterogeneous catalysts.…”

Hydrogen titanate nanosheet-assembled fibers as a new matrix to promote the Co-activated PMS process for efficient polychlorinated phenol degradation

“…Among all ongoing advanced oxidative processes (AOPs) used in removing the noxious organic substances from wastewater, [1][2][3][4] peroxymonosulfate (PMS)-based AOPs, involving sulfate radical (SO 4 À ) oxidation, have exhibited good performance for degrading some refractory pollutants due to the unique features of SO 4 À radicals with a high redox potential (2.5-3.1 V), a longterm half-life period (30-40 ms), and a broad pH application scope (2-9). [5][6][7][8] Normally, it is necessary to activate PMS to produce adequate SO 4 À radicals in aqueous media using an external stimulus (heat, ultrasound, and UV-light) or chemical catalysts since PMS itself cannot produce abundant SO 4…”