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Renewable Biomass‐Derived Hierarchically Porous Carbonaceous Sponge (CS)/g‐C 3 N 4 Composites as Adsorption and Photocatalytic Materials
Author(s) -
Tu Dan,
Liao Huiwei,
Deng Qiulin,
Liu Xiang,
Shang Ronggang,
Zhang Xiaoyong
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201803767
Subject(s) - photocatalysis , materials science , adsorption , decomposition , composite material , catalysis , degradation (telecommunications) , porosity , composite number , specific surface area , phenol , visible spectrum , chemical engineering , chemistry , organic chemistry , telecommunications , computer science , engineering , optoelectronics
In this work, the preparation, characterization and removal capability of hierarchically porous carbonaceous sponges and their g‐C 3 N 4 /CS composites were described. Possessing a hierarchically porous structure and extremely large surface areas, g‐C 3 N 4 /CS composites are demonstrated to have advantages in adsorption and photocatalytic activities. The adsorption and photocatalytic activities of the as‐prepared catalysts were evaluated by the degradation of RhB, MO, and phenol. The best results showed that 97% decomposition of RhB was obtained by using g‐C 3 N 4 /CS‐60 composites within 20 min at 25 °C under visible light irradiation. Furthermore, the g‐C 3 N 4 /CS‐60 composites showed remarkable regeneration stability, which maintains high photocatalytic activity after the samples are saturated. Additionally, the degradation mechanisms of RhB and the photocatalytic mechanism are explained in this paper.