Salt template synthesis of hierarchical porous carbon adsorbents for Congo red removal

被引：14

作者：

Wang, Zichen ^{[1
]}

Tang, Zhi ^{[1
,2
]}

Xie, Xuedong ^{[1
]}

Xi, Meiqi ^{[1
]}

Zhao, Junfeng ^{[1
,2
]}

机构：

[1] Changshu Inst Technol, Sch Mat Engn, Changshu, Jiangsu, Peoples R China

[2] Changshu Inst Technol, Suzhou Key Lab Funct Ceram Mat, Changshu, Jiangsu, Peoples R China

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2022年 / 648卷

关键词：

Salt template; Porous carbon; Congo red; Adsorption; WASTE-WATER TREATMENT; ACTIVATED CARBON; EFFICIENT REMOVAL; HYDROTHERMAL CARBONIZATION; ADSORPTION-KINETICS; ANODE MATERIALS; DYE ADSORPTION; METAL-IONS; BIOMASS; NANOMATERIALS;

D O I：

10.1016/j.colsurfa.2022.129278

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Water-soluble salt was used as a template to fabricate a series of hierarchical porous carbon materials (HPCs). HPCs prepared with 4 g salt template and thermally treated at 700 ? (HPCs-4-700) presents a 3D honeycomb-like microstructure with a large specific surface area of 705.51 m(2) g(-1), and large pore volume of 1.73 cm(3) g(-1). HPCs-4-700 adsorbent shows a fast adsorption rate and high capacity toward Congo red (CR) dye. It can be found that the adsorption process follows the pseudo-second-order kinetics and Langmuir isotherm models with a maximum capacity of 869.73 mg g(-1). Due to high performance and simple preparation process, HPCs-4-700 might be a promising candidate for the removal of CR in wastewater.

引用

页数：10

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