Abstract Ammonia nitrogen (NH 4+-N), which exists in the dominant form of ammonium ion
(NH 4+) under the pH of 6.5–8.5, is one of the regular indexes and the most important …

Catalytic ozonation is an environmentally friendly technology for the removal of gaseous NH
3 due to high NH 3 conversion and high N 2 selectivity at ambient temperature. However …

Large amounts of water containing-ammonium nitrogen (NH 4+-N) have attracted increasing
attention. Catalytic ozonation technology, involving the generation of hydroxyl radical (· OH) …

The nitrogen oxidation reaction (NOR) to form nitric acid by applying natural air and H2O
under ambient conditions is a sustainable approach to achieving efficient and selective N2 …

A novel and efficient α‐MnO2‐N/C@ active carbon (AC) catalyst was proposed and
synthesized through a surface modification method based on imprinting process. Uniformly …

Abstract Ammonia nitrogen (NH 4+-N) is one of the regular indexes and the most important
contaminants in drinking water. However, it is still a great challenge to remove low …

Two kinds of cryptomelane-type manganese oxide (OMS-2-Ac and OMS-2-SO 4) catalysts
were prepared with MnAc 2· 4H 2 O and MnSO 4 as precursors, respectively, and were …

Catalytic ozonation is a highly effective method in wastewater treatment, and MnO 2
materials are widely recognized as active heterogeneous catalysts in this process. Many …

In this work, CTAB-NiO catalyst was prepared by solid-state method and employed for
oxidizing ammonia (NH 4+) in aqueous solution by catalytic ozonation. In order to obtain …

It is highly concerned to explore heterogeneous catalysts of metal oxides to remove NH 4+-
N in the wastewater, in which NH 4+-N can be greatly oxidized as gaseous nitrogen in the …