Nitrogen doped sinocalamus oldhami lignin-based activated biochar with high specific surface area: Preparation and its adsorption for malachite green contaminant - Details

author：

Guo, H. (Guo, H..) ^[1] | Liu, Y. (Liu, Y..) ^[2] | Lv, Y. (Lv, Y..) ^[3] | Lin, Y. (Lin, Y..) ^[5] | Liu, M. (Liu, M..) ^[6]

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Abstract：

A　new　nitrogen　doped　sinocalamus　oldhami　lignin-based　activated　biochar　(denoted　as　N-BGAC)　with　a　notably　high　adsorption　efficiency　was　prepared　for　the　removal　of　malachite　green　(MG).　The　properties　and　structure　of　N-BGAC　were　thoroughly　characterized,　alongside　an　investigation　into　the　MG　adsorption　process.　The　findings　revealed　that　N-BGAC　possessed　a　substantial　specific　surface　area　of　2238　m2　g−1,　nearly　double　that　of　the　activated　biochar　lacking　nitrogen　doping　(BGAC).　Additionally,　N-BGAC　exhibited　exceptional　adsorption　efficiency　for　MG,　boasting　a　maximum　adsorption　capacity　of　1372.5　mg　g−1,　marking　an　enhancement　of　nearly　2.5　times　compared　to　BGAC.　By　exploring　the　adsorption　mechanism,　it　could　be　found　that　the　adsorption　process　was　a　spontaneous　exothermic　reaction,　and　mainly　controlled　by　pore-filling　effect,　electrostatic　interactions,　hydrogen　bonding,　hydrophobic　interactions　and　π-π　bonding　interactions.　Crucially,　in　the　regeneration　experiments,　the　removal　percentage　of　MG　could　still　reach　81.5%　after　four　cycles　of　regeneration,　making　it　promising　in　the　contaminant　removal.　©　2024　The　Institution　of　Chemical　Engineers

Keyword：

Activated biochar Adsorption Lignin Malachite Green Mechanism analysis Sinocalamus oldhami

Community：

[ 1 ] [Guo H.]College of Environment and Safety Engineering, Fuzhou University, Fuzhou, 350116, China
[ 2 ] [Guo H.]Fujian Provincial Technology Exploitation Base of Biomass Resources, Fuzhou University, Fuzhou, 350116, China
[ 3 ] [Liu Y.]College of Environment and Safety Engineering, Fuzhou University, Fuzhou, 350116, China
[ 4 ] [Liu Y.]Fujian Provincial Technology Exploitation Base of Biomass Resources, Fuzhou University, Fuzhou, 350116, China
[ 5 ] [Lv Y.]College of Environment and Safety Engineering, Fuzhou University, Fuzhou, 350116, China
[ 6 ] [Lv Y.]Fujian Provincial Technology Exploitation Base of Biomass Resources, Fuzhou University, Fuzhou, 350116, China
[ 7 ] [Liu Y.]College of Environment and Safety Engineering, Fuzhou University, Fuzhou, 350116, China
[ 8 ] [Liu Y.]Fujian Provincial Technology Exploitation Base of Biomass Resources, Fuzhou University, Fuzhou, 350116, China
[ 9 ] [Lin Y.]College of Environment and Safety Engineering, Fuzhou University, Fuzhou, 350116, China
[ 10 ] [Lin Y.]Fujian Provincial Technology Exploitation Base of Biomass Resources, Fuzhou University, Fuzhou, 350116, China
[ 11 ] [Liu M.]College of Environment and Safety Engineering, Fuzhou University, Fuzhou, 350116, China
[ 12 ] [Liu M.]Fujian Provincial Technology Exploitation Base of Biomass Resources, Fuzhou University, Fuzhou, 350116, China
[ 13 ] [Liu M.]College of Environmental and Biological Engineering, Putian University, Putian, 351100, China

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Related Keywords：

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Source ：

Process Safety and Environmental Protection

ISSN： 0957-5820

Year： 2024

Volume： 183

Page： 992-1001

6 . 9 0 0

JCR@2023

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SCOPUS Cited Count： 6

ESI Highly Cited Papers on the List： 0 Unfold All

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Chinese Cited Count：

30 Days PV： 2

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