Nitrogen selectivity upon catalytic ozonation of ammonia with CTAB-NiO catalyst

C Liu, Y Chen, R Yin, C He, T Qiu - Journal of Water Process Engineering, 2021 - Elsevier
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 …

Catalytic ozonation of ammonia nitrogen removal in wastewater: A review

H Ma, G Chen, F Huang, Y Li, L Zhang, Y Jin - Journal of Water Process …, 2023 - Elsevier
Abstract Ammonia nitrogen (NH 4+-N) is the most common pollutant in wastewater, which
consumes dissolved oxygen in water and causes eutrophication in water bodies, and is an …

The mechanisms of ozonation for ammonia nitrogen removal: An indirect process

Y Yang, H Liu - Journal of Environmental Chemical Engineering, 2022 - Elsevier
Catalytic ozonation was reported to be a highly selective method for transforming ammonia
nitrogen to N 2. However, the mechanisms of ammonia oxidation were confusing to be …

Catalytic ozonation of ammonia nitrogen with powdered activated coke: Influence of operational parameters and surface chemistries

G Chen, H Ma, F Huang, Z Li, L Zhang, J Li… - Journal of Water …, 2024 - Elsevier
Catalytic ozonation of ammonia nitrogen (NH 4+-N) in wastewater has received widespread
attention in recent years because of its high efficiency and mild reaction conditions …

A new insight into catalytic ozonation of ammonia by MgO/Co3O4 composite: The effects, reaction kinetics and mechanism

Z Zhang, H Ai, ML Fu, Y Hu, J Liu, Y Ji… - Chemical Engineering …, 2021 - Elsevier
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 …

Low-temperature conversion of ammonia to nitrogen in water with ozone over composite metal oxide catalyst

Y Chen, Y Wu, C Liu, L Guo, J Nie, Y Chen… - Journal of Environmental …, 2018 - Elsevier
As one of the most important water pollutants, ammonia nitrogen emissions have increased
year by year, which has attracted people's attention. Catalytic ozonation technology, which …

The role of cobalt oxide or magnesium oxide in ozonation of ammonia nitrogen in water

PA Krisbiantoro, T Togawa, L Mahardiani… - Applied Catalysis A …, 2020 - Elsevier
In this study, the reaction mechanisms for ozonation of ammonia nitrogen in the presence of
Co 3 O 4 or MgO were investigated. For the reaction over Co 3 O 4, Cl–in the reaction …

Fabrication of surfactant-enhanced metal oxides catalyst for catalytic ozonation ammonia in water

C Liu, Y Chen, L Guo, C Li - International Journal of Environmental …, 2018 - mdpi.com
The new surfactant-enhanced metal oxides composite catalysts have been prepared using
solid state method and characterized by the N2-adsorption-desorption, scanning electron …

Oxygen vacancies enhancing performance of Mg-Co-Ce oxide composite for the selective catalytic ozonation of ammonia in water

Z Zhang, H Ai, ML Fu, Y Hu, J Liu, Y Ji… - Journal of Hazardous …, 2022 - Elsevier
Catalytic ozonation based on heterogeneous metal oxides is a promising approach to
removing ammonia as gaseous nitrogen from water. Herein, MgO/Co 3 O 4/CeO 2 was …

Catalytic ozonation of NH4+-N in wastewater over composite metal oxide catalyst

C He, Y Chen, L Guo, R Yin, T Qiu - Journal of Rare Earths, 2022 - Elsevier
Large amounts of water containing-ammonium nitrogen (NH 4+-N) have attracted increasing
attention. Catalytic ozonation technology, involving the generation of hydroxyl radical (· OH) …