Guanyu Ran

Asia is the most dynamic region of human mobility in terms of who moves, the number of movers, and for what reason and by which means. Asian countries are receivers, senders and transit places for both long-term and short-term migrants, hosting growing migrant communities from around the world, and at the same time witnessing shifting cultural geographies formed by growing Asian diasporas.

Sulfate radical (SO4•−) related advanced oxidation processes (SR-AOPs) have been widely used to cope with refractory organic contaminants in the field of water treatment due to the long half-life time (30–40 μs) of SO4•− [1], [2], [3]. Transition metal oxides were commonly applied as catalysts in SR-AOPs for the activation of peroxymonosulfate (PMS) because of their adaptability to pH and lack of secondary pollution [4], [5].