Removal of Cr(VI) from Aqueous Solution by Nanoscale Zero-Valent Iron

被引：3

作者：

Yin, Yanan ^{[1
]}

Wang, Jianlong ^{[1
,2
]}

机构：

[1] Tsinghua Univ, INET, Collaborat Innovat Ctr Adv Nucl Energy Technol, Beijing 100084, Peoples R China

[2] Tsinghua Univ, Beijing Key Lab Radioact Waste Treatment, Beijing 100084, Peoples R China

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2017年 / 17卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Chromium; Heavy Metal; Nanoscale Iron; Kinetic; Thermodynamics; METHYLENE-BLUE ADSORPTION; REDUCTIVE DECHLORINATION; CHROMATE REDUCTION; P-CHLOROPHENOL; HEXAVALENT CHROMIUM; HEAVY-METALS; FE-0; BIOSORPTION; REMEDIATION; GROUNDWATER;

D O I：

10.1166/jnn.2017.13831

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The removal of Cr(VI) from aqueous solution using nanoscale iron particles was investigated. The effect of pH and temperature on Cr(VI) reduction was determined. The results showed that the removal efficiency of Cr(VI) increased with increase of the initial concentration of Cr(VI) from 1 to 10 mg/L. The removal process of Cr(VI) by nano-iron particles followed the first-order reaction kinetics and the rate constant was in the range of 0.164-0.184 min(-1). The thermodynamic parameters, such as entropy (Delta S), free energy (Delta G) and enthalpy (Delta H) of Cr(VI) reduction by nano-iron particles were calculated. The reduction of Cr(VI) by nanoscale iron particles was spontaneous process.

引用

页码：5864 / 5868

页数：5

共 50 条

[1] Stabilization of nanoscale zero-valent iron (nZVI) with modified biochar for Cr(VI) removal from aqueous solution
Dong, Haoran
Deng, Junmin
Xie, Yankai
Zhang, Cong
Jiang, Zhao
Cheng, Yujun
Hou, Kunjie
Zeng, Guangming
JOURNAL OF HAZARDOUS MATERIALS, 2017, 332 : 79 - 86
[2] Nanoscale zero-valent iron supported on mesoporous silica: Characterization and reactivity for Cr(VI) removal from aqueous solution
Petala, Eleni
Dimos, Konstantinos
Douvalis, Alexios
Bakas, Thomas
Tucek, Jiri
Zboril, Radek
Karakassides, Michael A.
JOURNAL OF HAZARDOUS MATERIALS, 2013, 261 : 295 - 306
[3] CaCO3 coated nanoscale zero-valent iron (nZVI) for the removal of chromium(VI) in aqueous solution
Cheng, Yujun
Dong, Haoran
Hao, Tianwei
SEPARATION AND PURIFICATION TECHNOLOGY, 2021, 257
[4] Removal of Cr(VI) from wastewater by supported nanoscale zero-valent iron on granular activated carbon
Fu, Fenglian
Han, Weijiang
Huang, Chijun
Tang, Bing
Hu, Min
DESALINATION AND WATER TREATMENT, 2013, 51 (13-15) : 2680 - 2686
[5] Removal of Cr(VI) by Nanoscale Zero-valent Iron (nZVI) From Soil Contaminated with Tannery Wastes
Singh, Ritu
Misra, Virendra
Singh, Rana Pratap
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY, 2012, 88 (02) : 210 - 214
[6] Effective removal of Cr(VI) by attapulgite-supported nanoscale zero-valent iron from aqueous solution: Enhanced adsorption and crystallization
Zhang, Wenying
Qian, Linbo
Ouyang, Da
Chen, Yun
Han, Lu
Chen, Mengfang
CHEMOSPHERE, 2019, 221 : 683 - 692
[7] EDDS-assisted reduction of Cr(VI) by nanoscale zero-valent iron
Dong, Haoran
Zeng, Yalan
Zeng, Guangming
Huang, Danlian
Liang, Jie
Zhao, Feng
He, Qi
Xie, Yankai
Wu, Yanan
SEPARATION AND PURIFICATION TECHNOLOGY, 2016, 165 : 86 - 91
[8] Removal of Aqueous Cr(VI) by Tea Stalk Biochar Supported Nanoscale Zero-Valent Iron: Performance and Mechanism
Mao, Yujie
Tao, Yufang
Zhang, Xulin
Chu, Zhaopeng
Zhang, Xinyi
Huang, He
WATER AIR AND SOIL POLLUTION, 2023, 234 (03)
[9] Removal of Pb(II) from aqueous solution by a zeolite-nanoscale zero-valent iron composite
Kim, Seol Ah
Kamala-Kannan, Seralathan
Lee, Kui-Jae
Park, Yool-Jin
Shea, Patrick J.
Lee, Wang-Hyu
Kim, Hyung-Moo
Oh, Byung-Taek
CHEMICAL ENGINEERING JOURNAL, 2013, 217 : 54 - 60
[10] Zero-valent iron particles embedded on the mesoporous silica-carbon for chromium (VI) removal from aqueous solution
Xiong, Kun
Gao, Yuan
Zhou, Lin
Zhang, Xianming
JOURNAL OF NANOPARTICLE RESEARCH, 2016, 18 (09)

← 1 2 3 4 5 →