Abstract：
:Graphite-like C3N4 (g-C3N4) is an efficient visible-light-driven photocatalyst commonly used in dye decolorization with very poor photocatalytic efficiency for degrading recalcitrant organic pollutants, such as phenol. In this study, we designed a g-C3N4/Fe(III)/persulfate system to significantly improve the phenol photodegradation efficacy by combining photocatalysis and light Fenton interaction. The phenol removal ratio and degradation rate of the g-C3N4/Fe(III)/persulfate system are 16.5- and 240-fold higher than those of individual g-C3N4 system. Sulfate radicals [Formula: see text] and H2O2 are detected in the g-C3N4/Fe(III)/persulfate system, suggesting that both radical decomposition and light Fenton interaction play important roles in phenol degradation. The efficient coupled photocatalytic system of g-C3N4 combined with Fe(III) and persulfate shows significant potential for application in large-scale degradation of environmental pollutants.
journal_name
Chemospherejournal_title
Chemosphereauthors
Hu JY,Tian K,Jiang Hdoi
10.1016/j.chemosphere.2016.01.002subject
Has Abstractpub_date
2016-04-01 00:00:00pages
34-40eissn
0045-6535issn
1879-1298pii
S0045-6535(16)30002-9journal_volume
148pub_type
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