Open AccessSulfur-doped porous carbon derived from waste polyphenylene sulfide for efficient adsorption removal of Cd2+ from simulated wastewater
Author(s) -
Wentao Su,
Wenxiao Tang,
Zhangxiang Zhu,
Yachun Liu
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1639/1/012094
Subject(s) - adsorption , sulfur , cadmium , inorganic chemistry , hydrogen sulfide , chemistry , carbon fibers , sulfide , wastewater , biochar , nuclear chemistry , materials science , waste management , organic chemistry , pyrolysis , composite number , engineering , composite material
Sulfur-doped porous carbon materials were prepared from waste polyphenylene sulfide (PPS) by chemical activation using potassium hydroxide as activator. The elemental composition (sulfur content) and the number of acid oxygen-containing groups on the surface of the samples were determined by elemental analysis and Boehm method, respectively. The effects of preparation temperature and adsorption conditions on the removal of Cd 2+ from simulated wastewater were studied according to the amount of cadmium removal. The results showed that the sulfur-doped porous carbon materials prepared under the optimal preparation conditions had better adsorption properties as compared to HNO 3 modified bamboo-derived biochar. This result is mainly due to the Lewis acid-base interaction between sulfur and Cd 2+ in addition to the coordination of Cd 2+ and oxygen-containing groups on the surface. Under the optimal adsorption conditions, the removal of cadmium in simulated wastewater can reach 98.74%. In conclusion, this cheap porous carbon material may be a useful adsorbent for cadmium.