Application of modified sepiolite as reusable adsorbent for Pd(II) sorption from acidic solutions

被引：16
作者：
Xiao, Yong [1 ,2 ]
Feng, Ning-ning [1 ,2 ]
Wang, Run-hua [1 ,2 ]
Dong, Hai-gang [3 ]
Guo, Zi-wen [1 ,2 ]
Cui, Hao [3 ]
Wu, Hai-yan [1 ,2 ]
Liu, Xin-xing [1 ,2 ]
Xie, Jian-ping [1 ,2 ]
机构：
[1] Cent South Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R China
[2] Cent South Univ, Key Lab Biomet, Minist Educ, Changsha 410083, Peoples R China
[3] Kunming Inst Precious Met, State Key Lab Adv Technol Comprehens Utilizat Pla, Kunming 650106, Yunnan, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2020年 / 30卷 / 05期
基金：
中国国家自然科学基金;
关键词：
AQUEOUS-SOLUTION; ADSORPTION BEHAVIOR; PALLADIUM(II); BIOSORPTION; NANOPARTICLES; RECOVERY; CLAY; MECHANISM; CHITOSAN; REMOVAL;
D O I：
10.1016/S1003-6326(20)65303-1
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The adsorption characteristics and mechanisms of modified sepiolite as an adsorbent to recover Pd(II) from acidic solutions were studied. The Pd(II) adsorption properties were analyzed through isotherm, kinetic and thermodynamic models. In addition, SEM−EDS, TEM and XPS were applied to investigating the Pd(II) adsorption mechanisms onto modified sepiolite. The equilibrium data were well fitted to Langmuir isotherm model with maximum Pd(II) adsorption capacity of 322.58 mg/g at 30 °C. The kinetic data could be satisfactorily simulated by the pseudo- second order model, indicating that the rate-controlling step was chemical adsorption. 99% of Pd(II) could be recovered using 1 g/L modified sepiolite when initial concentration of Pd(II) was 100 mg/L. The results of reusability studies indicated the modified sepiolite had an acceptable stability and reusability. This study indicated that the modified sepiolite might be an efficient and cost-effective material for Pd(II) recovery. © 2020 The Nonferrous Metals Society of China
引用
收藏
页码：1375 / 1386
页数：12
相关论文
共 45 条
  • [31] RETRACTED: The retention of uranium and europium onto sepiolite investigated by macroscopic, spectroscopic and modeling techniques (Retracted Article)
    Sun, Yubing
    Li, Jiaxing
    Wang, Xiangke
    [J]. GEOCHIMICA ET COSMOCHIMICA ACTA, 2014, 140 : 621 - 643
  • [32] Mechanism of palladium(II) biosorption by Providencia vermicola
    Tan, Ling
    Dong, Haigang
    Liu, Xinxing
    He, Jia
    Xu, Hang
    Xie, Jianping
    [J]. RSC ADVANCES, 2017, 7 (12) : 7060 - 7072
  • [33] In situ loading of palladium nanoparticles on mica and their catalytic applications
    Tao, Ranting
    Sun, Zhenyu
    Xie, Yun
    Zhang, Hongye
    Huang, Changliang
    Zhao, Yanfei
    Liu, Zhimin
    [J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2011, 353 (01) : 269 - 274
  • [34] Adsorption and dielectric properties of poly(1-vinylimidazole) on sepiolite
    Tekin, Nalan
    Kaya, A. Ugur
    Esmer, Kadir
    Kara, Ali
    [J]. APPLIED CLAY SCIENCE, 2012, 57 : 32 - 38
  • [35] Tuo Y, 2016, ENVIRON SCI POLLUT R, V24, P1
  • [36] Re-dispersion of Pd on Ce0.5Zr0.5O2 upon cooling in the presence of oxygen
    Wan, Jie
    Ran, Rui
    Wu, Xiaodong
    Cao, Yidan
    Li, Min
    Weng, Duan
    Huang, Kaisheng
    [J]. CATALYSIS TODAY, 2015, 253 : 51 - 56
  • [37] Sepiolite-Based Adsorbents for the Removal of Potentially Toxic Elements from Water: A Strategic Review for the Case of Environmental Contamination in Hunan, China
    Wang, Zhenghua
    Liao, Lina
    Hursthouse, Andrew
    Song, Na
    Ren, Bozhi
    [J]. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 2018, 15 (08):
  • [38] Recovery of high-purity metallic Pd from Pd(II)-sorbed biosorbents by incineration
    Won, Sung Wook
    Lim, Areum
    Yun, Yeoung-Sang
    [J]. BIORESOURCE TECHNOLOGY, 2013, 137 : 400 - 403
  • [39] Organo-bentonite-Fe3O4 poly(sodium acrylate) magnetic superabsorbent nanocomposite: Synthesis, characterization, and Thorium(IV) adsorption
    Wu, Liansheng
    Ye, Yuanlv
    Liu, Fuqiang
    Tan, Cunmin
    Liu, Huan
    Wang, Shaofei
    Wang, Jing
    Yi, Wujing
    Wu, Wangsuo
    [J]. APPLIED CLAY SCIENCE, 2013, 83-84 : 405 - 414
  • [40] Carbon-coated sepiolite clay fibers with acid pre-treatment as low-cost organic adsorbents
    Wu, Xueping
    Zhang, Qingxin
    Liu, Cun
    Zhang, Xianlong
    Chung, D. D. L.
    [J]. CARBON, 2017, 123 : 259 - 272
12345