Enhanced Cr(VI) adsorption by DOM-coated iron-manganese binary oxides: process and mechanisms DOI
Zeyu Zhang,

Xiaole Ti,

Rui Yang

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116705 - 116705

Published: April 1, 2025

Language: Английский

Manganese Dioxides Induce the Transformation and Protection of Dissolved Organic Matter Simultaneously: A Significance of Crystallinity DOI
Zhiqiang Wang, Haoran Zhao, Zihan Shi

et al.

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 9, 2025

Interactions between manganese dioxides (MnO2) and dissolved organic matter (DOM) have long been the subject of scientific inquiry. However, effect MnO2 crystallinity on DOM fate remains unclear. Herein, we comprehensively investigate adsorption, protection, mineralization by with various crystallinities (order crystallinity: γ-30 < γ-90 γ-120). The results show that adsorption is positively correlated specific surface area (SSA) MnO2; largest SSA adsorbs highest amount DOM, resulting in protection. γ-120 a smaller could induce Maillard reaction thereby promote formation geopolymerized matter, leading to reduced bioavailability DOM. Furthermore, capability mineralize decreases order > γ-30, it determined both Mn4+ hydroxyl radical (·OH) content. In particular, contribution radical-based oxidation ·OH 64.8, 47.4, 23.7% for γ-90, γ-120, respectively. We propose may significant but hitherto unexplored influence global carbon cycle over geological time.

Language: Английский

Citations

3
Manganese redox cycle on the surface of ferrihydrite induces the aging of polystyrene nanoplastics DOI
Honglei Yang,

Yanjun Yu,

Haihong Zhou

et al.

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2025, Volume and Issue: unknown, P. 136218 - 136218

Published: Jan. 1, 2025

Language: Английский

Citations

0
Effects of adsorption and oxidation of dissolved organic matter by ferrihydrite and/or birnessite on its binding characteristics to copper DOI

Zecong Ding,

Yang Ding, Lanlan Zhu

et al.

Chemical Geology, Journal Year: 2025, Volume and Issue: unknown, P. 122766 - 122766

Published: April 1, 2025

Language: Английский

Citations

0
Enhanced Cr(VI) adsorption by DOM-coated iron-manganese binary oxides: process and mechanisms DOI
Zeyu Zhang,

Xiaole Ti,

Rui Yang

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116705 - 116705

Published: April 1, 2025

Language: Английский

Citations

0