Low Carbonate Contaminative and Ultrasmall NiAl LDH Prepared by Acid Salt Treatment with High Adsorption Capacity of Methyl Orange

被引：46

作者：

Jing, Chuan ^{[1
,2
]}

Chen, Yuxiang ^{[1
]}

Zhang, Xing ^{[3
]}

Guo, Xiaolong ^{[4
,5
]}

Liu, Xiaoying ^{[2
]}

Dong, Biqin ^{[6
]}

Dong, Fan ^{[7
]}

Zhang, Xianming ^{[2
]}

Liu, Yunqi ^{[2
]}

Li, Shaochun ^{[8
]}

Zhang, Yuxin ^{[1
,2
]}

机构：

[1] Chongqing Univ, Coll Mat Sci & Engn, State Key Lab Mech Transmiss, Chongqing 400044, Peoples R China

[2] Chongqing Technol & Business Univ, Chongqing Key Lab Catalysis & New Environm Mat, Coll Environm & Resources,Minist Educ, Engn Res Ctr Waste Oil Recovery Technol & Equipme, Chongqing 400067, Peoples R China

[3] Sinopec, Shengli Oilfield Co, Res Inst Petr Engn Technol, Dongying 257000, Peoples R China

[4] Chongqing Univ, Coll Aerosp Engn, Chongqing 400044, Peoples R China

[5] Chongqing Univ, State Key Lab Mech Transmiss, Chongqing 400044, Peoples R China

[6] Shenzhen Univ, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R China

[7] Univ Elect Sci & Technol China, Inst Fundamental & Frontier Sci, Res Ctr Environm Sci & Technol, Chengdu 611731, Sichuan, Peoples R China

[8] Qingdao Univ Sci & Technol, Sch Civil Engn, Qingdao 266033, Shandong, Peoples R China

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2019年 / 58卷 / 27期

基金：

中国国家自然科学基金;

关键词：

LAYERED DOUBLE HYDROXIDES; EFFICIENT REMOVAL; AQUEOUS-SOLUTION; CONGO RED; ANION-EXCHANGE; MG; COMPOSITE; CR(VI); DYE; PERFORMANCE;

D O I：

10.1021/acs.iecr.9b01706

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Layered double hydroxides (LDHs) are attracting intense research interests as methyl orange (MO) adsorbent due to the unique anionic exchange ability. Herein, ultrasmall NiAl LDHs with Cl- intercalation were prepared by a facile method combining hydrothermal method with acid salt treatment. As a result, the as-prepared NiAl LDHs displayed favorable removal performance toward MO from aqueous solution due to the negligible carbonate contamination and ultrasmall nanosheets (about 50 nm). The maximum experimental and theoretical adsorption capacities of 853.19 and 900.14 mg g(-1) at pH = 7 and T = 298 K for MO were achieved for Ni4Al1-Cl LDH. The adsorption mechanism is dominated by chemisorption, and the adsorption process is spontaneous and endothermic. Possible "intercalation-split mechanism" for MO on NiAl-Cl LDH is proposed to explain the split of (003) plane. The improvement of adsorption capacity indicates that the acid salt treatment is an effective strategy to construct the rapid and high-effective anionic dyes adsorbents.

引用

页码：11985 / 11998

页数：14

共 1 条

[1] Acid-salt treated CoAl layered double hydroxide nanosheets with enhanced adsorption capacity of methyl orange dye
Chen, Yuxiang
Jing, Chuan
Zhang, Xing
Jiang, Debin
Liu, Xiaoying
Dong, Biqin
Feng, Li
Li, Shaochun
Zhang, Yuxin
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2019, 548 : 100 - 109

← 1 →