Premium
Preparation and application of bagasse‐based adsorbent for highly efficient removal of mercury ions
Author(s) -
Ma Nianfang,
Li Jinrong,
Zeng Jian,
Liang Lei,
Zhang Jiayong
Publication year - 2020
Publication title -
water environment research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.356
H-Index - 73
eISSN - 1554-7531
pISSN - 1061-4303
DOI - 10.1002/wer.1206
Subject(s) - adsorption , bagasse , mercury (programming language) , chemistry , diethylenetriamine , nuclear chemistry , chemical engineering , inorganic chemistry , organic chemistry , pulp and paper industry , computer science , engineering , programming language
A high‐performance bagasse‐based adsorbent was prepared from agricultural waste bagasse by grafting of acrylamide and aminating with diethylenetriamine. Effects of catalyst dosage, acrylamide concentration, reaction temperature, and bath ratio on the grafting yield were investigated. The adsorption performances for mercury ions were evaluated by batch adsorption experiments and kinetic experiments. The results show that the adsorbent has high adsorption capacity for mercury in a wide range of pH values. The adsorption capacity could be as high as 813.0 mg/g, and the removal percentage for mercury ions can reach 99.9%. The kinetic adsorption experiments show it can achieve adsorption equilibrium rapidly, which implies that the adsorbent has a strong ability to capture mercury ions. Besides, the bagasse‐based adsorbent showed promising regeneration performance, and its adsorption amount of regenerated adsorbent only slightly decreased after five recycling. Practitioner points An amino‐rich adsorbent was prepared from bagasse. The adsorbent possesses high adsorption capacity and high removal efficiency for mercury. The aminated bagasse adsorbs mercury rapidly. The adsorbent functionalized with amino possesses strong affinity toward mercury.