The sulfate radical ( -• SO 4 ), almost a most active species, is believed to be the best oxidant in the elimination of aquatic organics in advanced oxidation processes. However, acquiring their steady-state generation with high concentration is still challenging work. In this report, we focused on designing a novel composite, in which uniform and rod-like CoMoO 4 was fabricated on gC 3 N 4 through Co-N coordination. In this way, the composite acquired an immobilization of Co (II) in its refraining from leaking, and synchronically, a dense heterojunction between CoMoO 4 and gC 3 N 4 . Over the heterojunctions, photogenerated electrons gained a prolonged lifetime through their efficient separation from holes. The life-prolonged electrons, together with Co (II) in CoMoO 4 , effectively activated the persulfate, and a concentration of steady-state -• SO 4 as high as 1.8×10 −14 mol•l −1 was obtained. With -• SO 4 fast and complete mineralization of a humic acid was achieved.

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Through the investigation of public security organs in HaiNan Province, 798 valid samples are extracted. Firstly, the research framework is briefly introduced, then the questionnaire is designed, and the data are analyzed descriptive and reliability. Then the principal component analysis is carried out on the dimension of the incentive, which is the most important index. Finally, the use of promotion incentives, the content of job incentives, material and spiritual incentives in three dimensions of the important indicators is to encourage civil servants and to put forward countermeasures and suggestions.