Elucidating Phosphate and Cadmium Cosorption Mechanisms on Mineral Surfaces with Direct Spectroscopic and Modeling Evidence DOI

Wantong Zhao,

Yun Xu,

Lantao Gu

и другие.

Environmental Science & Technology, Год журнала: 2024, Номер 58(45), С. 20211 - 20223

Опубликована: Окт. 31, 2024

The simultaneous sorption of cations and anions at the mineral-water interface can substantially alter their individual characteristics; however, this phenomenon lacks a mechanistic understanding. Our study provides direct spectroscopic modeling evidence molecular cosorption mechanisms cadmium ion (Cd

Язык: Английский

Phase Transformation of Calcium Sulfate at Mineral-Solution Interface: An Overlooked Pathway for Selective Enrichment of Cadmium DOI
Wenjing Li,

Guiquan Che,

Chunli Wang

и другие.

Journal of Hazardous Materials, Год журнала: 2025, Номер 487, С. 137244 - 137244

Опубликована: Янв. 15, 2025

Язык: Английский

Процитировано

1
Cadmium isotopic evidence for the redistribution and fate of cadmium during carbonate weathering DOI
Yizhang Liu, Jing Jing, Yongxiang Zhang

и другие.

Global and Planetary Change, Год журнала: 2025, Номер unknown, С. 104820 - 104820

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0
Enrichment Mechanisms of Cadmium in Natural Manganese-Rich Nodules from Karst Soils DOI

Kun Lin,

Bo Li, Dong‐Xing Guan

и другие.

Environmental Science & Technology, Год журнала: 2025, Номер unknown

Опубликована: Апрель 7, 2025

Natural manganese (Mn)-rich nodules effectively sequester cadmium (Cd) in soils and influence on the geochemical cycling of soil Cd, yet microscale understanding their enrichment mechanisms remains limited. From a regional survey 1448 rhizosphere soil-rice sample pairs karst areas Guangxi, China, we identified characterized Mn-rich from representative sites to investigate role Cd sequestration. Using chemical extractions combined with laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) X-ray photoelectron spectroscopy (XPS), revealed that Mn oxides serve as primary carriers nodules, accounting for approximately 63.6% total dominating through binding Cd-O Cd-OH bonds characteristic inner-sphere surface complexation structural incorporation. The stability these interactions was confirmed by pH-dependent experiments, showing <5.0% release even at pH = 3.0. high Mn(III) mass ratios (36.0%-40.0%) facilitated stable complexation, resulting increased retention. These study findings reveal exceptional sequestration capacity natural provide insights concentrations low availabilities karst, which can aid developing strategies managing Cd-polluted soils.

Язык: Английский

Процитировано

0
Elucidating Phosphate and Cadmium Cosorption Mechanisms on Mineral Surfaces with Direct Spectroscopic and Modeling Evidence DOI

Wantong Zhao,

Yun Xu,

Lantao Gu

и другие.

Environmental Science & Technology, Год журнала: 2024, Номер 58(45), С. 20211 - 20223

Опубликована: Окт. 31, 2024

The simultaneous sorption of cations and anions at the mineral-water interface can substantially alter their individual characteristics; however, this phenomenon lacks a mechanistic understanding. Our study provides direct spectroscopic modeling evidence molecular cosorption mechanisms cadmium ion (Cd

Язык: Английский

Процитировано

0