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Showing results for humin oh
Your search for Hyumin Oh retrieved no results
The Overlooked Role of Humin in Dark Hydroxyl Radical Production during Oxygenation.
Zhang H, Li L, Liu X, Duan L, Zhang X, Dong L, Liu X, Li P, Li B, Xue M, Xia G. Zhang H, et al. Environ Sci Technol. 2024 Oct 8;58(40):18033-18040. doi: 10.1021/acs.est.4c06101. Epub 2024 Sep 26. Environ Sci Technol. 2024. PMID: 39325111
When reduced humin encounters O(2), the possibility of .OH formation arises. However, the exploration of .OH generation mediated by humin has not been comprehensively conducted. ...Most importantly, the study compared the .OH production by hu …
When reduced humin encounters O(2), the possibility of .OH formation arises. However, the exploration of .OH generation …
Computational survey of humin formation from 5-(hydroxymethyl)furfural under basic conditions.
Tashiro K, Kobayashi M, Nakajima K, Taketsugu T. Tashiro K, et al. RSC Adv. 2023 May 31;13(24):16293-16299. doi: 10.1039/d3ra02870d. eCollection 2023 May 30. RSC Adv. 2023. PMID: 37266499 Free PMC article.
Based on the reaction conditions, we considered the reactions of HMF + H(2)O, HMF + OH(-), and HMF + O(2) and identified three reaction paths with <65 kJ mol(-1) barrier for the reaction of HMF + OH(-). Further, the suppression of humin formation by the ac …
Based on the reaction conditions, we considered the reactions of HMF + H(2)O, HMF + OH(-), and HMF + O(2) and identified three reacti …
Humin as an electron mediator for microbial reductive dehalogenation.
Zhang C, Katayama A. Zhang C, et al. Environ Sci Technol. 2012 Jun 19;46(12):6575-83. doi: 10.1021/es3002025. Epub 2012 May 31. Environ Sci Technol. 2012. PMID: 22582856
The function of humins is stable against treatments with H(2)O(2) (30%, 30 min), HCl (0.1 M, 48 h), NH(2)OH . ...The finding that humin, in solid form, is redox active has important implications for in situ bioremediation, given the wide distribution of hu …
The function of humins is stable against treatments with H(2)O(2) (30%, 30 min), HCl (0.1 M, 48 h), NH(2)OH . ...The finding t …
Characteristics of adsorption interactions of cadmium(II) onto humin from peat soil in freshwater and seawater media.
Andreas R, Zhang J. Andreas R, et al. Bull Environ Contam Toxicol. 2014 Mar;92(3):352-7. doi: 10.1007/s00128-014-1205-x. Epub 2014 Jan 25. Bull Environ Contam Toxicol. 2014. PMID: 24464297
The present study examined Cd solubility in pH 2-12 fresh and seawater media with and without humin to determine Cd species composition. The study, based on the Langmuir-Hinshelwood kinetics model, was conducted to determine the kinetic parameters of Cd(II) adsorption onto …
The present study examined Cd solubility in pH 2-12 fresh and seawater media with and without humin to determine Cd species compositi …
Retention of cobalt on a humin derived from brown coal.
Alvarez-Puebla RA, Aroca RF, Valenzuela-Calahorro C, Garrido JJ. Alvarez-Puebla RA, et al. J Hazard Mater. 2006 Jul 31;135(1-3):122-8. doi: 10.1016/j.jhazmat.2005.11.041. Epub 2006 Jan 4. J Hazard Mater. 2006. PMID: 16387430
In this work, the retention of cobalt on a humin (HU) derived from a brown coal is studied. Through a systematic and coordinated investigation of the behavior of the metal ions in solution (speciation diagrams as a function of pH) and their adsorption and precipitation pro …
In this work, the retention of cobalt on a humin (HU) derived from a brown coal is studied. Through a systematic and coordinated inve …
Multiple Effects of Humic Components on Microbially Mediated Iron Redox Processes and Production of Hydroxyl Radicals.
Han R, Wang Z, Lv J, Zhu Z, Yu GH, Li G, Zhu YG. Han R, et al. Environ Sci Technol. 2022 Nov 15;56(22):16419-16427. doi: 10.1021/acs.est.2c03799. Epub 2022 Oct 12. Environ Sci Technol. 2022. PMID: 36223591
Here, using ferrihydrite, Shewanella oneidensis MR-1, and operationally defined SOM components including fulvic acid (FA), humic acid (HA), and humin (HM) extracted from black soil and peat, we explored the SOM-mediated microbial iron reduction and hydroxyl radical (()O …
Here, using ferrihydrite, Shewanella oneidensis MR-1, and operationally defined SOM components including fulvic acid (FA), humic acid (HA), …
Microwave-Assisted One Pot Cascade Conversion of Furfural to γ-Valerolactone over Sc(OTf)3.
Li F, Yang R, Tian Z, Du Z, Dai J, Wang X, Li N, Zhang J. Li F, et al. Chemistry. 2023 Sep 15;29(52):e202300950. doi: 10.1002/chem.202300950. Epub 2023 Aug 16. Chemistry. 2023. PMID: 37392150
This catalyst exhibits high reusability and can be regenerated by oxidative degradation of humins. In addition, a plausible cascade reaction network was proposed based on the distribution of product....
This catalyst exhibits high reusability and can be regenerated by oxidative degradation of humins. In addition, a plausible cascade r …
Selective dephasing of OH and NH proton magnetization based on (1)H chemical-shift anisotropy recoupling.
Schmidt-Rohr K, Mao JD. Schmidt-Rohr K, et al. J Magn Reson. 2002 Aug;157(2):210-7. doi: 10.1006/jmre.2002.2589. J Magn Reson. 2002. PMID: 12323139
It permits distinction of overlapping CH and OH/NH proton signals, based on the selective dephasing of the magnetization of OH and NH protons by their relatively large (1)H chemical-shift anisotropies. ...In the HETCOR experiments, carefully timed (13)C 180 degrees …
It permits distinction of overlapping CH and OH/NH proton signals, based on the selective dephasing of the magnetization of OH …
Fate of chlorpyrifos bound residues in paddy soils: Release, transformation, and phytoavailability.
Zhong J, Shen D, Li H, He Y, Bao Q, Wang W, Ye Q, Gan J. Zhong J, et al. Environ Int. 2022 Aug;166:107338. doi: 10.1016/j.envint.2022.107338. Epub 2022 Jun 9. Environ Int. 2022. PMID: 35716507 Free article.
Most (14)C-CPF-BR(in) in soils were composed of the parent CPF and its metabolite 3,5,6-trichloro-2-pyridinol (2-OH-TCP), which was mainly formed through reversible entrapment by soil fulvic acids and humin (>80%). ...The subsequent metabolism of released (14)C-C …
Most (14)C-CPF-BR(in) in soils were composed of the parent CPF and its metabolite 3,5,6-trichloro-2-pyridinol (2-OH-TCP), which was m …
Efficient Alkaline-Free Electrooxidation of 5-Hydroxymethylfurfural to 2,5-Furandicarboxylic Acid using Electrochemically-Charged Ni(x)Co(1-x)(OH)(2) as a Redox Mediator.
Zhang J, Shen Y, Wu Z, Zhang X, Kang J, Wu Y, Zhang S, Chen S, Wang G, Zhang H, Yin H, Zhao H. Zhang J, et al. Angew Chem Int Ed Engl. 2025 Mar 24;64(13):e202423109. doi: 10.1002/anie.202423109. Epub 2025 Jan 16. Angew Chem Int Ed Engl. 2025. PMID: 39748661
These harsh conditions destabilize HMF, leading to humin formation and reduced product purity, meanwhile membranes increase costs. Addressing these challenges, we introduce a two-step, decoupling system that operates without strong alkaline conditions and eliminates the ne …
These harsh conditions destabilize HMF, leading to humin formation and reduced product purity, meanwhile membranes increase costs. Ad …
22 results