Premium
Fabrication of ternary CoO/g‐C 3 N 4 /Co 3 O 4 nanocomposite with p‐n‐p type heterojunction for boosted visible‐light photocatalytic performance
Author(s) -
Zhang Wenqiang,
Shi Weilong,
Sun Haoran,
Shi Yuxing,
Luo Hao,
Jing Shirong,
Fan Yingqiang,
Guo Feng,
Lu Changyu
Publication year - 2021
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.6703
Subject(s) - photocatalysis , nanocomposite , ternary operation , materials science , visible spectrum , heterojunction , analytical chemistry (journal) , reaction rate constant , fabrication , degradation (telecommunications) , nuclear chemistry , nanotechnology , catalysis , optoelectronics , chemistry , kinetics , organic chemistry , physics , telecommunications , quantum mechanics , computer science , programming language , medicine , alternative medicine , pathology
BACKGROUND Photocatalytic water treatment by using semiconductor material with low‐cost, along with green and environmental features, is the main candidate for the actual application of photocatalytic reactions. RESULTS The ternary CoO/g‐C 3 N 4 /Co 3 O 4 nanocomposite with p‐n‐p type heterojunction was fabricated through a one‐step solvothermal method follow‐up water washing process. The as‐prepared CoO/g‐C 3 N 4 /Co 3 O 4 nanocomposite photocatalyst exhibited high visible‐light photocatalytic efficiency (92% within 80 min) during the degradation of tetracycline (TC). The degradation rate constant of CoO/g‐C 3 N 4 /Co 3 O 4 nanocomposite is 0.025 min −1 , which is 8.3, 4.3 and 2.3 times higher than that of single CoO, g‐C 3 N 4 and binary CoO/g‐C 3 N 4 , respectively. CONCLUSION A series of characterization experiments further confirmed that the photocatalytic performance of the synthesized CoO/g‐C 3 N 4 /Co 3 O 4 composite materials was improved due to the following two points: (i) improved separation and migration ability of photo‐induced electron–hole pairs, and (ii) enhanced visible light absorption range. © 2021 Society of Chemical Industry (SCI).