دورية أكاديمية
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Novel design of amine and metal hydroxide functional group modified onto sludge biochar for arsenic removal.

التفاصيل البيبلوغرافية
العنوان: Novel design of amine and metal hydroxide functional group modified onto sludge biochar for arsenic removal.
المؤلفون: Chen CK; Department of Environmental Engineering, National I-Lan University, Ilan 26047, Taiwan, China; Continental Water Engineering Corporation, Taipei 10608, Taiwan, China., Nguyen NT; Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan, China., Le TT; Faculty of Environment and Chemical Engineering, Duy Tan University, Da Nang 500000, Viet Nam., Duong CC; Southern Institute of Water Resources Research, Ho Chi Minh 700000, Viet Nam., Nguyen CN; Faculty of Chemistry and Environment, Dalat University, Dalat 66100, Viet Nam., Truong DT; Dalat Nuclear Research Institute, Dalat 66100, Viet Nam., Liao CH; Infectious Disease Divisions, Far Eastern Memorial Hospital, New Tai-Pei 22060, Taiwan, China E-mail: liaochunhsing@gmail.com.
المصدر: Water science and technology : a journal of the International Association on Water Pollution Research [Water Sci Technol] 2022 Mar; Vol. 85 (5), pp. 1384-1399.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: IWA Publishing Country of Publication: England NLM ID: 9879497 Publication Model: Print Cited Medium: Print ISSN: 0273-1223 (Print) Linking ISSN: 02731223 NLM ISO Abbreviation: Water Sci Technol Subsets: MEDLINE
أسماء مطبوعة: Publication: <1998->: London : IWA Publishing
Original Publication: Oxford ; New York : Pergamon Press, 1981-
مواضيع طبية MeSH: Arsenic*/chemistry, Amines ; Charcoal ; Hydroxides/chemistry ; Sewage
مستخلص: This study involved novel-designed sludge biochar (SB) adsorbed for arsenic removal with lower operating costs and higher adsorption efficiency properties. Generally, biochar only relies on micropores for pollutant adsorption, but physical adsorption is not highly efficient for arsenic removal. Therefore, in order to improve the removal efficiency of arsenic by SB, diethylenetriamine (DETA) and FeCl 3 were used in this study to modify the surface of SB by an immersion method. The objectives of this research are to obtain optimum operation conditions by assessing the effect of different Fe content, pH and initial concentration on adsorbing arsenic. This study is the first to use Density Functional Theory (DFT) to simulate and verify the adsorption mechanism of arsenic by SB. Results showed the presence of amine/iron oxyhydroxides functional groups greatly promoted SB surface activity and its arsenic adsorption potential. The surface area, pore volume and pore size of the SB were estimated to be 525 m 2 g -1 , 0.35 cm 3 g -1 and 8.71 nm, respectively. The DFT model result is the same as the result of arsenic adsorption performance with high adsorption energy (-246.3 kJmol -1 ) and shorter bond distances (1.42 Å), indicating strong chemical adsorption between arsenic and material. The reaction mechanism is divided into four pathways, including oxidation-reduction, complexation, electrostatic adsorption and pore adsorption.
المشرفين على المادة: 0 (Amines)
0 (Hydroxides)
0 (Sewage)
0 (biochar)
16291-96-6 (Charcoal)
N712M78A8G (Arsenic)
تواريخ الأحداث: Date Created: 20220315 Date Completed: 20220317 Latest Revision: 20220317
رمز التحديث: 20240829
مُعرف محوري في PubMed: wst_2022_047
DOI: 10.2166/wst.2022.047
PMID: 35290219
قاعدة البيانات: MEDLINE
الوصف
تدمد:0273-1223
DOI:10.2166/wst.2022.047