Removal of Methylene Blue from Water by Peach Gum Based Composite Aerogels

被引：14

作者：

Li, Liubo ^{[1
]}

Li, Yanhui ^{[1
,2
]}

Yang, Kai ^{[2
]}

Luan, Xinyu ^{[1
]}

Li, Meixiu ^{[2
]}

Cui, Mingfei ^{[1
]}

Sun, Yong ^{[1
]}

Wang, Huimin ^{[1
]}

Sun, Qinye ^{[2
]}

Tang, Kaili ^{[1
]}

Xu, Wenshuo ^{[1
]}

Zheng, Heng ^{[2
]}

机构：

[1] Qingdao Univ, Coll Mech & Elect Engn, State Key Lab Biofibers & Ecotext, Qingdao 266071, Peoples R China

[2] Qingdao Univ, Coll Mat Sci & Engn, 308 Ningxia Rd, Qingdao 266071, Peoples R China

来源：

JOURNAL OF POLYMERS AND THE ENVIRONMENT | 2021年 / 29卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Peach gum; Activated carbon; Graphene oxide; Methylene blue; Adsorption; GRAPHENE OXIDE; AQUEOUS-SOLUTION; CHEMICAL ACTIVATION; EFFICIENT REMOVAL; ADSORPTION; ADSORBENT; CARBON; DYES; POLYSACCHARIDE; PERFORMANCE;

D O I：

10.1007/s10924-020-01987-2

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this study, novel composite aerogels of peach gum/activated carbon (PGAC) and peach gum/graphene oxide (PGGO) were synthesized by freeze-drying method for removing methylene blue (MB) from water. The methods of the scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy and Brunauer-Emmett-Teller (BET) are used to characterize the adsorbents. It is important to study the effect of distinct factors on MB adsorption. Studies show that using the Langmuir model and Freundlich model can describe the equilibrium isotherms. The maximum adsorption capacities of PGAC and PGGO calculated by Langmuir model were 279.98 mg/g and 360.99 mg/g. Kinetic studies reveals that the kinetic behavior of PGAC and PGGO is more in line with the pseudo-second-order kinetic. The adsorption reaction of MB onto PGAC was endothermic, meanwhile PGGO was exothermic.

引用

页码：1752 / 1762

页数：11

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