Magnetic biochar derived from macroalgal Sargassum hemiphyllum for highly efficient adsorption of Cu(II): Influencing factors and reusability

被引：32

作者：

Truong, Quoc-Minh ^{[1
,2
]}

Ho, Phung-Ngoc-Thao ^{[1
]}

Nguyen, Thanh-Binh ^{[1
]}

Chen, Wei-Hsin ^{[3
,4
,5
]}

Bui, Xuan-Thanh ^{[6
,7
]}

Patel, Anil Kumar ^{[8
]}

Singhania, Reeta Rani ^{[8
]}

Chen, Chiu-Wen ^{[8
]}

Dong, Cheng-Di ^{[8
]}

机构：

[1] Natl Kaohsiung Univ Sci & Technol, Inst Aquat Sci & Technol, Kaohsiung 81157, Taiwan

[2] Thu Dau Mot Univ, Fac Management Sci, Thu Dau Mot 75000, Binh Duong, Vietnam

[3] Natl Cheng Kung Univ, Dept Aeronaut & Astronaut, Tainan 701, Taiwan

[4] Tunghai Univ, Res Ctr Smart Sustainable Circular Econ, Taichung 407, Taiwan

[5] Natl Chin Yi Univ Technol, Dept Mech Engn, Taichung 411, Taiwan

[6] Vietnam Natl Univ Ho Chi Minh VNU HCM, Ho Chi Minh City Univ Technol HCMUT, Key Lab Adv Waste Treatment Technol, Ho Chi Minh City 700000, Vietnam

[7] Ho Chi Minh City Univ Technol HCMUT, Fac Environm & Nat Resources, 268 Ly Thuong Kiet St,Dist 10, Ho Chi Minh City 700000, Vietnam

[8] Natl Kaohsiung Univ Sci & Technol, Dept Marine Environm Engn, Kaohsiung 81157, Taiwan

来源：

BIORESOURCE TECHNOLOGY | 2022年 / 361卷

关键词：

Algae; Magnetic biochar; Cu (II); Iron oxide; Adsorption; COPPER IONS; MECHANISMS; KINETICS; BEHAVIOR; REMOVAL; LEAD;

D O I：

10.1016/j.biortech.2022.127732

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

In this study, the brown algae Sargassum Hemiphyllum was used as a carbon source for synthesis of magnetic porous biochar via pyrolyzing at high temperature and and doping iron oxide particles (Fe-BAB). Cu (II) species were removed from aqueous solutions using Fe-BAB under various conditions. Fe-BAB demonstrated superior Cu (II) adsorption (105.3 mg g(-1)) compared to other biochars. On the surface of Fe-BAB, there are several oxygen -containing functional groups, such as -COOH and -OH, which are likely responsible for the excellent heavy metal removal performance. By utilizing magnet, the Fe-BAB can be conveniently separated from the solution and ready for further usage. Multi-adsorption mechanisms were responsible for Cu adsorption on Fe-BAB. Using the magnetic algal biochar for heavy metal removal is feasible due to its high adsorption efficiency and simplicity of separation.

引用

页数：10

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