On P-doping of graphitic carbon nitride with hexachlorotriphosphazene as a source of phosphorus

被引：28

作者：

Skuta, Radim ^{[1
,2
]}

Matejka, Vlastimil ^{[1
,2
]}

Foniok, Krystof ^{[1
]}

Smykalova, Aneta ^{[1
,2
]}

Cvejn, Daniel ^{[2
,3
,4
]}

Gabor, Roman ^{[3
]}

Kormunda, Martin ^{[5
]}

Smetana, Bedrich ^{[6
]}

Novak, Vlastimil ^{[6
]}

Praus, Petr ^{[1
,2
]}

机构：

[1] VSB Tech Univ Ostrava, Fac Mat Sci & Technol, Dept Chem, 17 Listopadu 2172-15, Ostrava 70800, Czech Republic

[2] VSB Tech Univ Ostrava, Inst Environm Technol, CEET, 17 Listopadu 2172-15, Ostrava 70800, Czech Republic

[3] VSB Tech Univ Ostrava, Nanotechnol Ctr, CEET, 17 Listopadu 2172-15, Ostrava 70800, Czech Republic

[4] VSB Tech Univ Ostrava, ENET Ctr, CEET, 17 Listopadu 2172-15, Ostrava 70800, Czech Republic

[5] Univ JE Purkyne, Fac Sci, Usti Nad Labem, Czech Republic

[6] VSB Tech Univ Ostrava, Fac Mat Sci & Technol, Dept Phys Chem & Theory Technol Proc, 17 Listopadu 2172-15, Ostrava 70800, Czech Republic

来源：

APPLIED SURFACE SCIENCE | 2021年 / 552卷

关键词：

Graphitic carbon nitride; Phosphorus doping; Hexacyclochlotrotriphosphazene; Photocatalysis;

D O I：

10.1016/j.apsusc.2021.149490

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The synthesis of P-doped graphitic carbon nitride (PCN) by in situ doping via co-pyrolysis of melamine and hexachlorocyclotriphosphazene (HCCP) is being investigated. The amount of HCCP varies between 2 and 40 wt% and the results show continuous enrichment of graphitic carbon nitride (CN) by phosphorus. The detailed characterization of prepared samples leads to the proposition of the occurrence of phosphorus in synthesized samples as well as to the proposition of a P-doping mechanism. The results of the characterization techniques used indicate that with up to 1.2 wt% of phosphorus in final PCN, phosphorus predominantly substitutes carbon in the structure. An increase of the phosphorus content to 2.44 wt% causes its incorporation into substitutional positions and part of the phosphorus occurs in other forms. PCN with 2.44 wt% of phosphorus obtained from the mixture of melamine with 20 wt% of HCCP thermally treated at 525 ?C shows the highest photodegradation activity under VIS irradiation.

引用

页数：15

共 58 条

[11] Fragmented phosphorus-doped graphitic carbon nitride nanoflakes with broad sub-bandgap absorption for highly efficient visible-light photocatalytic hydrogen evolution [J].