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Sustainable production of value-added sulfonated biochar by sulfuric acid carbonization reduction of rice husks
Zhou, Zhimao1; Yao, Daqing1; Li, Shifei1; Xu, Fei1; Liu, Ying1; Liu, Ruixia1; Chen, Zhaohui2
2021-11-01
Source PublicationENVIRONMENTAL TECHNOLOGY & INNOVATION
ISSN2352-1864
Volume24Pages:14
AbstractBiochar is an effective vehicle for sequestering carbon and mitigating the greenhouse gas effect, as a way to combat climate change. Currently pyrolysis is the main treatment method to prepare biochar, and generally only half of the carbon (C) can be retained in the pyrolytic biochar. In this paper, we introduce a new low-cost method for the preparation of biochar from biomass by one-step carbonized reduced sulfuric acid. The results show that the carbonization reaction of rice husk with alkylated waste sulfuric acid can yield more than 80% of biochar, which is much higher than the pyrolysis biochar. Besides, the prepared biomass sulfonated char has abundant functional groups including -(SOH)-H-3, -OH and exhibits excellent adsorption performance for Cd2+ with the maximum adsorption capacity of 93.98 mg/g. In conclusion, the method used in this paper to prepare sulfonated biochar has fewer steps, a lower processing cost and higher value-added products, thus making it more sustainable and economical, and supporting a wider range of sulfuric acid carbonization methods. It has the potential to inspire and lead the way for the safe, economical and sustainable preparation of value-added sulfonated carbon materials for commercial applications. (C) 2021 Published by Elsevier B.V.
KeywordSulfonated biochar Sulfuric acid Carbonization reduction Biomass Adsorption
DOI10.1016/j.eti.2021.102025
Language英语
WOS KeywordHYDROTHERMAL CARBONIZATION ; AMORPHOUS-CARBON ; STORAGE CAPACITY ; SOLID ACID ; BIOMASS ; HYDROLYSIS ; HYDROCHARS ; ALKYLATION ; PYROLYSIS ; CELLULOSE
Funding ProjectNational Natural Science Foundation of China[21776285] ; National Natural Science Foundation of China[22078339] ; CAS Key Technology Talent Program ; Major Science and Technology Innovation Project of Shandong Province, China[2019JZZY010505]
WOS Research AreaBiotechnology & Applied Microbiology ; Engineering ; Environmental Sciences & Ecology
WOS SubjectBiotechnology & Applied Microbiology ; Engineering, Environmental ; Environmental Sciences
Funding OrganizationNational Natural Science Foundation of China ; CAS Key Technology Talent Program ; Major Science and Technology Innovation Project of Shandong Province, China
WOS IDWOS:000719302000014
PublisherELSEVIER
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/51259
Collection中国科学院过程工程研究所
Corresponding AuthorZhou, Zhimao
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Polytech Montreal, Chem Engn Dept, CP 6079,Succ Ctr Ville, Montreal, PQ H3C 3A7, Canada
Recommended Citation
GB/T 7714
Zhou, Zhimao,Yao, Daqing,Li, Shifei,et al. Sustainable production of value-added sulfonated biochar by sulfuric acid carbonization reduction of rice husks[J]. ENVIRONMENTAL TECHNOLOGY & INNOVATION,2021,24:14.
APA Zhou, Zhimao.,Yao, Daqing.,Li, Shifei.,Xu, Fei.,Liu, Ying.,...&Chen, Zhaohui.(2021).Sustainable production of value-added sulfonated biochar by sulfuric acid carbonization reduction of rice husks.ENVIRONMENTAL TECHNOLOGY & INNOVATION,24,14.
MLA Zhou, Zhimao,et al."Sustainable production of value-added sulfonated biochar by sulfuric acid carbonization reduction of rice husks".ENVIRONMENTAL TECHNOLOGY & INNOVATION 24(2021):14.
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