Solvated electrons are {among|amongst} {the most|probably the most|essentially the most|one of the most|by far the most} reductive species in aqueous {environment|atmosphere}. Diamond {materials|supplies|components} {have been|happen to be|have already been} proposed as a promising {source|supply} for solvated electrons, {but the|however the} underlying emission {process|procedure|method|approach|course of action} in water remains elusive so far. {Here|Right here}, we show spectroscopic {evidence|proof} for the emission of solvated electrons from nanodiamonds upon excitation with {both|each} deep ultraviolet (225 nm) and visible (400 nm) light {using|utilizing|making use of|employing|working with|applying} ultrafast transient absorption. The {crucial|essential|vital|critical|important} {role|function|part} of surface termination for the emission {process|procedure|method|approach|course of action} is evidenced by comparing hydrogenated, hydroxylated and carboxylated nanodiamonds. {Especially|Particularly|Specifically|Specially|In particular}, hydrogenated nanodiamonds are {able to|in a position to} {generate|produce|create} solvated electron upon visible light excitation, {while|whilst|although|even though|when|though} they show a sub-ps recombination {due to|because of|as a result of|on account of|resulting from|as a consequence of} trap states when excited with deep ultraviolet light. The {essential|important|crucial|vital|necessary|critical} {role|function|part} of surface reconstructions {on the|around the} nanodiamonds in these processes is proposed {based|primarily based} on density functional theory calculations. These {results|outcomes|final results|benefits} open new perspectives for solar-driven emission of solvated electrons in aqueous phase {using|utilizing|making use of|employing|working with|applying} nanodiamonds. 7-Deaza-2′-deoxy-7-iodoadenosine Chemscene 1782555-45-6 web PMID:24187611
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