Birnessite is ubiquitous in the natural environment where heavy metals are retained and
easily transformed. The surface properties and structure of birnessite change with the …

The increasing intensity of human activities has led to a critical environmental challenge:
widespread metal pollution. Manganese (Mn) oxides have emerged as potentially natural …

A valence-state heterojunction Mn 3 O 4/γ-MnOOH was synthesized for norfloxacin (NOR)
degradation under concurrent visible light and magnetic field. The charge carriers could …

Doping is a valid strategy to tailor nanozyme activities benefited from the change of the
electronic properties and/or nanoparticle dissolution. Here, we used the transition metal …

Birnessite, a layered manganese (Mn) oxide, possesses extraordinary metal adsorption and
oxidation activity, and thus imposes impacts on many biogeochemical processes. The …

Therapeutic application in prevention and treatment of bone diseases, particularly
osteoporosis, has recently started to emerge for manganese dioxide (MnO 2) nanoparticles …

We elucidate the removal mechanism of Cd by birnessite (δ-MnO 2) in adsorption and
coprecipitation processes in the context of acid mine drainage (AMD) treatments. The …

Iron-manganese binary oxides are characterized by high oxidation and adsorption capability
and widely applied to arsenic (As) detoxification in contaminated waters. Despite of their …

The sorption of aqueous Mn (II)(1 mM) and Co (II)(50 and 200 μM) onto hexagonal
birnessite (0.1 g L− 1) was studied under anoxic conditions at pH 6.5 and 7.5 in binary and …

Natural birnessite-like minerals are commonly enriched in various transitional metals (TMs),
which greatly modify the mineral structure and properties. However few studies are yet …