A Novel Metal‐Free Polymer‐Based POPD/g‐C3N4 Photocatalyst with Enhanced Charge Carrier Separation for the Degradation of Tetracycline Hydrochloride. Issue 29 (12th October 2017)

• Record Type: Journal Article
• Authors: Chen, Xi; Liu, Lu; Zhao, Yilei; Zhang, Jia; Li, Danlu; Hu, Baorong; Hai, Xin
• Is Part Of: ChemistrySelect. Volume 2:Issue 29(2017)
• Page Start: 9256
• Page End: 9260
• Publication Date: 2017-10-12
• Subjects: metal-free -- POPD/g-C3N4 -- photocatalyst, tetracycline hydrochloride -- effective charge separation -- photocatalytic properties; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/slct.201701789
• Languages: English
• ISSNs: 2365-6549

Abstract

Abstract: Development of low‐cost, highly‐efficient and metal‐free photocatalyst has been attracted great attentions recently owing to its unique advantages and wide application. Here, the novel metal‐free Poly‐o‐phenylenediamine (POPD)/g‐C3 N4 photocatalyst is firstly synthetized via suspension polymerization in the existence of g‐C3 N4 . Such POPD/g‐C3 N4 photocatalyst is constructed through growth of highly dispersed conductive polymer nanoparticles on the g‐C3 N4 surfaces. The photoluminescent spectra and photoelectrochemical measurement confirm that the introduction of POPD nanoparticles in g‐C3 N4 system can effectively separate charge carrier and suppress their recombination. As expected, the as‐prepared POPD/g‐C3 N4 photocatalyst exhibits obviously enhanced photocatalytic degradation performance of tetracycline hydrochloride than that of pure g‐C3 N4 under visible light irradiation, which is due to the synergistic effect of POPD and g‐C3 N4 . At last, the possible photocatalytic reaction mechanism and the transfer and separation process of photo‐generated charge carriers in the POPD/g‐C3 N4 system are proposed. This work provides a new insight into the construction of other metal‐free polymer‐based photocatalyst for water purification. Abstract : The novel metal‐free Poly‐o‐phenylenediamine (POPD)/ g‐C3 N4 photocatalyst is firstly synthetized via suspension polymerization in the existence of g‐C3 N4 . Such POPD/g‐C3 N4 photocatalyst is constructed through growth of highly dispersed conductive polymer nanoparticles on the surfaces of g‐C3 N4 . The synergistic effect of POPD and g‐C3 N4 played a pivotal role in the photocatalytic degradation performance of tetracycline.