Room Temperature Preparation of Surface-Clean Hydrogen-Doped Plasmonic Molybdenum Oxide as a High-Efficient and Degradable Reactive Oxygen Species Scavenger
Room Temperature Preparation of Surface-Clean Hydrogen-Doped Plasmonic Molybdenum Oxide as a High-Efficient and Degradable Reactive Oxygen Species Scavenger
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室温制备表面清洁的掺氢等离子体氧化钼作为高效可降解的活性氧清除剂
DOI：
10.1007/s11468-020-01193-9
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发表时间：
2020-06
期刊：
影响因子：
3
通讯作者：
Yi He
中科院分区：
文献类型：
--
作者：
Junren Wang;Hua Li;Haili Yu;Yi He
已经做出相当大的努力来开发用于去除高水平的活性氧（ROS）的活性氧清除剂。然而，大多数报道的ROS清除剂是不可降解的，涉及苛刻的反应条件，以及利用各种表面配体。为了克服这些缺点，本论文在室温下，不使用任何表面封端剂，在酸性条件下，将MoO 3分散液与铝箔混合，制备出表面清洁的掺氢氧化钼（H 0. 34 MoO 3）。H0.34MoO3是一种广谱活性氧清除剂，可清除.OH、H2 O2、O2-、1 O2和2，2-二苯基-1-苦肼基（DPPH）等活性氧。H0.34 MoO 3对.OH和DPPH自由基的清除率分别达到71.6%和99.1%，与经典的自由基清除剂抗坏血酸相当且上级。更重要的是，所得到的H0.34MoO3是降解的，其可以在中性环境（pH 7.4）下降解为二价离子。
Considerable efforts have been made to develop reactive oxygen species (ROS) scavengers for removing high level of ROS. However, most of the reported ROS scavengers are nondegradable and involve harsh reaction conditions as well as utilize various surface ligands. In order to overcome these drawbacks, in the present work, we develop a facile and mild synthesis avenue for preparation of surface-clean hydrogen-doped molybdenum oxide (H0.34MoO3) via simply mixing MoO3dispersion with aluminum foil under an acidic environment without any surface capping reagents at room temperature. The resulting H0.34MoO3can act as a broad-spectrum ROS scavenger, including.OH, H2O2, O2−, and1O2as well as 2, 2-diphenyl-1-picrylhydrazyl (DPPH). The free radical scavenging activity of H0.34MoO3achieves as high as 71.6% and 99.1% for.OH and DPPH scavenging, which is comparable and superior to that of ascorbic acid that is a classic free radical scavenger. More significantly, the resulting H0.34MoO3is degrade, which can be degraded into molybdate ions under a neutral environment (pH 7.4).
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