从形貌设计、异质结的构建以及掺杂等角度出发说明了单金属MOFs材料的改性可帮助增加比表面积、促进光生载流子的转换以及产生新的活性物种位点,从而促进芬顿反应。此外双金属MOFs通过双金属位点的协同作用加快价态循环从而更快产生活性物种。 碳...
科研动态 | EDTA络合Fenton反应促进自由基形成 近日,我院水处理技术与水质安全团队曾华斌课题组在环境领域高水平期刊Water Research上发表了题为“Redox Property of Coordinated Iron Ion Enables Activation ofO2via in-situ GeneratedH2O2and Additionally AddedH...
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Organic pollutant oxidation has been commonly used in wastewater treatment by using Fenton's reaction. The key disadvantage of the Fenton reaction is the constant loss of effluent catalytic material and the need for acidic conditions (pH = 3) for optimum operation. Fenton's reagent based on nanom...
综上，该项工作不仅为类Fenton反应机理的研究提供了基础性的见解，还为在原子水平上合理设计类Fenton催化剂提供了策略。Dynamic Active-site Induced by Host-guest Interactions Boost the Fenton-like Reaction for Organic Wastewater Treatment. Nature Communications, 2023. DOI: 10.1038/s41467-023-39228-4 ...
Rate constants for reaction (1.2) depend on the metal complex and are typically in the 5–20 × 103 M− 1 s− 1 range. Over the years, there has been considerable debate as to whether the product is the hydroxyl radical or a higher oxidation state of the metal (such as ferryl [...
综上,该项工作不仅为类Fenton反应机理的研究提供了基础性的见解,还为在原子水平上合理设计类Fenton催化剂提供了策略。 Dynamic Active-site Induced by Host-guest Interactions Boost the Fenton-like Reaction for Organic Wastewater Treatment. Nature Communications, 2023. DOI: 10.1038/s41467-023-39228-4...
doxpotential(ORP)inFention'sreaction.enH2OzistitratedintoanFe2beatingsolution, ORPincreasedrapidlywithincreasingH202atamolarratioofH202/[Fez]0below0.75.Above theratio,however,theincreasingrateofORPevidentlysloweddown.Intheabsenceoforganic substrate.theORPremainedasaconstantvalueforalongtimefollowingafastincreasewit...
wereanalyzed.Moreoverit’sbenefittodevelopingtheoxidationmechanismofFentonreagent andtransformationlawofintermediateduringFentonreaction.TheresultshowedthattheORP increasedrapidlywithincreasingH 2 O 2 duringthepreliminarystageofFentonreaction,butthenit woulddeclineslowlyafterachievingasummitvalue.ItfoundthatthepHvalueand...
这是由于PMS向Co位提供电子导致电子密度降低所致，进一步表明PMS被分解为SO5•-和随后的1O2。Dynamic active-site induced by host-guest interactions boost the Fenton-like reaction for organic wastewater treatment. Nat. Commun., 2023, DOI: ht-tps://doi.org/10.1038/s41467-023-39228-4.