How does adsorptive fractionation of dissolved black carbon on ferrihydrite affect its copper binding behaviors? A molecular-scale investigation DOI
Mei Huang, Qi Yang, Jianmei Zou

et al.

Water Research, Journal Year: 2024, Volume and Issue: 251, P. 121128 - 121128

Published: Jan. 10, 2024

Language: Английский

Direct and Indirect Electron Transfer Routes of Chromium(VI) Reduction with Different Crystalline Ferric Oxyhydroxides in the Presence of Pyrogenic Carbon DOI
Zibo Xu,

Yulu Yu,

Xiaoyun Xu

et al.

Environmental Science & Technology, Journal Year: 2022, Volume and Issue: 56(3), P. 1724 - 1735

Published: Jan. 3, 2022

Electron transfer mediated by iron minerals is considered as a critical redox step for the dynamics of pollutants in soil. Herein, we explored reduction process Cr(VI) with different crystalline ferric oxyhydroxides presence pyrogenic carbon (biochar). Both low- and high-crystallinity induced immobilization mainly via sorption process, limited process. However, was inspired copresence biochar. Low-crystallinity oxyhydroxide had an intense chemical combination biochar strong inner-sphere complexation, leading to indirect electron route reduction, that is, first transferred from mineral through C–O–Fe binding then Fe(III)/Fe(II) transformation on oxyhydroxides. With increasing crystallinity oxyhydroxides, direct between became main avenue reduction. The suppressed due less Cr(VI), biochar, higher stability. This study demonstrates mechanisms involving change crystallization which would affect geochemical contaminants carbon.

Language: Английский

Citations

72

Characterization of copper binding to biochar-derived dissolved organic matter: Effects of pyrolysis temperature and natural wetland plants DOI
Caixia Yan,

Wangyu Wang,

Minghua Nie

et al.

Journal of Hazardous Materials, Journal Year: 2022, Volume and Issue: 442, P. 130076 - 130076

Published: Sept. 28, 2022

Language: Английский

Citations

49

Binding characteristics of copper onto biochar-derived DOM using general, heterospectral and moving-window two-dimensional correlation analyses DOI
Jun Wu,

Wenxin Tu,

Chunping Li

et al.

Journal of Hazardous Materials, Journal Year: 2022, Volume and Issue: 435, P. 129021 - 129021

Published: April 27, 2022

Language: Английский

Citations

45

Molecular-level exploration of properties of dissolved organic matter in natural and engineered water systems: A critical review of FTICR-MS application DOI

Mingqi Ruan,

Fengchang Wu,

Fuhong Sun

et al.

Critical Reviews in Environmental Science and Technology, Journal Year: 2023, Volume and Issue: 53(16), P. 1534 - 1562

Published: Jan. 2, 2023

Dissolved organic matter (DOM) contains complex molecular compounds that dominate its heterogeneous dynamics and behaviors in aquatic environments. Fourier transform ion cyclotron resonance mass spectrometry (FTICR-MS) with ultra-high resolution has proven to be effective characterizing DOM. However, a systematic summary of molecular-level compositions DOM natural engineered water systems remains insufficient. This study provides critical review characterization by FTICR-MS, emphasis on composition diversity, chemical properties, transformation, the systems. First, FTICR-MS strategies for are introduced data interpretation collaborative analysis complementary datasets (e.g. spectroscopic data). Second, characteristics, including spatiotemporal distribution, photochemical activity, microbial modification, interface adsorption environments were comprehensively summarized based current findings. Third, changes caused different treatment methods reviewed highlight variation, reaction, transformation focusing results. Finally, we limitations, biases, future directions extended studies natural/engineered-derived behavior. application favorable understanding chemistry

Language: Английский

Citations

43

Temperature-Dependent Molecular Evolution of Biochar-Derived Dissolved Black Carbon and Its Interaction Mechanism with Polyvinyl Chloride Microplastics DOI
Fanhao Song, Tingting Li, Fengchang Wu

et al.

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(18), P. 7285 - 7297

Published: April 25, 2023

Biochar-derived dissolved black carbon (DBC) molecules are dependent on the BC formation temperature and affect fate of emerging contaminants in waters, such as polyvinyl chloride microplastic (MPPVC). However, temperature-dependent evolution MPPVC-interaction DBC remain unclear. Herein, we propose a novel DBC-MPPVC interaction mechanism by systematically interpreting heterogeneous correlations, sequential responses, synergistic relationships thousands their linking functional groups. Two-dimensional correlation spectroscopy was proposed to combine Fourier transform–ion cyclotron resonance mass spectrometry spectroscopic datasets. Increased caused diverse fluorophores, accompanied molecular transformation from saturation/reduction unsaturation/oxidation with high oxidation states, especially for acidic The response detected via negative-/positive-ion electrospray ionization sequentially occurred unsaturated hydrocarbons → lignin-like condensed aromatic lipid-/aliphatic-/peptide-like tannin-like carbohydrate-like molecules. changes induced MPPVC were closely coordinated, contributing most interaction. Functional groups m/z < 500 showed phenol/aromatic ether C–O, alkene C═C/amide C═O polysaccharides C–O alcohol/ether/carbohydrate These findings help elucidate critical role DBCs MP environmental behaviors.

Language: Английский

Citations

36

Intrinsic properties of biochar for electron transfer DOI
Yuan Gao, Yueru Sun,

Wenshuo Song

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 475, P. 146356 - 146356

Published: Oct. 5, 2023

Language: Английский

Citations

35

Advancements in Biochar Modification for Enhanced Phosphorus Utilization in Agriculture DOI Creative Commons
Nazir Ahmed, Lifang Deng, Chuan Wang

et al.

Land, Journal Year: 2024, Volume and Issue: 13(5), P. 644 - 644

Published: May 9, 2024

The role of modified biochar in enhancing phosphorus (P) availability is gaining attention as an environmentally friendly approach to address soil P deficiency, a global agricultural challenge. Traditional phosphatic fertilizers, while essential for crop yield, are costly and detrimental owing fixation leaching. Modified presents promising alternative with improved properties such increased porosity, surface area, cation exchange capacity. This review delves into the variability based on source production methods how these can be optimized effective adsorption. By adjusting pH levels functional groups align phosphate’s zero point charge, we enhance biochar’s ability adsorb retain P, thereby increasing its bioavailability plants. integration nanotechnology advanced characterization techniques aids understanding structural nuances interactions phosphorus. offers multiple benefits: it enables farmers use more efficiently, reducing need traditional fertilizers minimizing environmental impacts, greenhouse gas emissions also identifies existing research gaps future opportunities further modifications. These findings emphasize significant potential sustainable agriculture.

Language: Английский

Citations

15

Influence of algal organic matter in the in-situ flotation removal of Microcystis using positively charged bubbles DOI

Shaozhe Cheng,

Haiyang Zhang,

Hailing Wang

et al.

Bioresource Technology, Journal Year: 2024, Volume and Issue: 397, P. 130468 - 130468

Published: Feb. 18, 2024

Language: Английский

Citations

10

Biochar modified by ammonium pyrrolidine dithiocarbamate for high selective adsorption of copper in wastewater DOI
Tawasul Mohammed Ali Babeker,

Shaoyan Lv,

Mohamed N. Khalil

et al.

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 354, P. 129436 - 129436

Published: Aug. 30, 2024

Language: Английский

Citations

10

Mechanistic Insight into Multiple Effects of Copper Ion on the Photoreactivity of Dissolved Organic Matter DOI
Zhansheng Li, Hongxia Zhao,

Jitao Lv

et al.

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 487, P. 137124 - 137124

Published: Jan. 5, 2025

Language: Английский

Citations

1