Arsenic pollution in water is a serious worldwide problem.Therefore,developing suitable adsorbents has become an important task for environmental researchers.As a common adsorbent material,iron-based adsorbents have caused extensive concern for their efficient adsorption of arsenic.In this paper,the characteristics and As removal mechanisms of iron-based adsorbents and their modified products are summarized.Finally,the prospects of the future research direction of iron-based adsorbents were forward.
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