Green and efficient synthesis of hierarchical porous carbon derived from MOF-235 for catalytic degradation of thiocyanate

doi:10.1039/d3gc02608f

IMR OpenIR

	Green and efficient synthesis of hierarchical porous carbon derived from MOF-235 for catalytic degradation of thiocyanate
	Yang, Yang 1,2; Li, Binchuan 1,2; Fu, Daxue 1,2; Chen, Jianshe 1,2; Cui, Shuang 3; He, Xiaocai 4; Liu, Kuiren 1,2; Wei, Shicheng 5; Li, Da 6; Han, Qing 1,2
通讯作者	Han, Qing(hanq@smm.neu.edu.cn)
	2023-10-16
发表期刊	GREEN CHEMISTRY
ISSN	1463-9262
卷号	25 期号:20 页码:8093-8107
摘要	Metal-organic framework-derived carbon-based materials have shown significant potential in advanced oxidation processes. However, mass production of MOFs is still limited mainly due to non-economic, non-green, and complex synthesis methods. This study reports thermal-assisted ball milling as a novel method for the green and efficient synthesis of MOF-235 compared with the solvothermal method. Lamellar metal-free porous carbon was obtained by pyrolysis of MOF-235 and HCl etching to avoid secondary pollution from metal leaching in activating persulfate for thiocyanate degradation. The effect of pyrolysis temperature on the structural characteristics and catalytic performance of MOF-235-derived porous carbon was investigated. The results demonstrated that the porous carbon derived from pyrolysis of MOF-235 at 650 degrees C with a larger specific surface area (831.48 m2 g-1) and a higher sp2-hybridized structure (70.3%) exhibits superior catalytic activity in persulfate activation, as evidenced by 99.9% degradation of thiocyanate within 15 min with 0.4 g L-1 catalyst and [Na2S2O8] : [SCN-] = 6.0 at ambient pH (5.5). The thiocyanate degradation experiments and mechanism studies revealed that the dominant pathways were the singlet oxygen-mediated non-radical oxidation and electron transfer processes. Finally, a possible mechanism of persulfate activation on metal-free porous carbon was proposed. This work provides thermal-assisted ball milling as a feasible method for the synthesis of MOF-235 and also discusses the promising application of the derived carbon for persulfate activation in wastewater treatment. Thermal-assisted ball milling is a novel method for the green and efficient synthesis of MOF-235. MOF-235-derived porous carbon exhibits excellent catalytic performance in thiocyanate degradation by persulfate activation.
资助者	This work was supported by the Fundamental Research Funds for the Central Universities under Grants (N2225019), the Fundamental Research Funds for the Central Universities (N2125031), and the National Natural Science Foundation of China (41773093).
DOI	10.1039/d3gc02608f
收录类别	SCI
语种	英语
资助项目	This work was supported by the Fundamental Research Funds for the Central Universities under Grants (N2225019), the Fundamental Research Funds for the Central Universities (N2125031), and the National Natural Science Foundation of China (41773093).
WOS研究方向	Chemistry ; Science & Technology - Other Topics
WOS类目	Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology
WOS记录号	WOS:001062495200001
出版者	ROYAL SOC CHEMISTRY
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/177675
专题	中国科学院金属研究所
通讯作者	Han, Qing
作者单位	1.Minist Educ, Key Lab Ecol Utilizat Multimetall Mineral, Shenyang 110819, Peoples R China 2.Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China 3.Shenyang Ligong Univ, Coll Environm & Chem Engn, Shenyang, Peoples R China 4.Kunming Met Res Inst, Kunming 650500, Yunnan, Peoples R China 5.Army Acad Armored Forces, Natl Key Lab Remfg, Beijing 100072, Peoples R China 6.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Yang, Yang,Li, Binchuan,Fu, Daxue,et al. Green and efficient synthesis of hierarchical porous carbon derived from MOF-235 for catalytic degradation of thiocyanate[J]. GREEN CHEMISTRY,2023,25(20):8093-8107.
APA	Yang, Yang.,Li, Binchuan.,Fu, Daxue.,Chen, Jianshe.,Cui, Shuang.,...&Han, Qing.(2023).Green and efficient synthesis of hierarchical porous carbon derived from MOF-235 for catalytic degradation of thiocyanate.GREEN CHEMISTRY,25(20),8093-8107.
MLA	Yang, Yang,et al."Green and efficient synthesis of hierarchical porous carbon derived from MOF-235 for catalytic degradation of thiocyanate".GREEN CHEMISTRY 25.20(2023):8093-8107.