Selective recovery of Au(III) and Pd(II) from waste PCBs using ethylenediamine modified persimmon tannin adsorbent
文献类型: 外文期刊
第一作者: Yi, Qingping
作者: Yi, Qingping;Fan, Ruiyi;Min, Huiyu;Zhang, Qinglin;Luo, Zhengrong;Yi, Qingping;Xie, Feng;Zhang, Qinglin;Luo, Zhengrong
作者机构:
关键词: persimmon tannin;ethylenediamine;Au(III);Pd(II);recovery;waste PCBs
期刊名称:SELECTED PROCEEDINGS OF THE TENTH INTERNATIONAL CONFERENCE ON WASTE MANAGEMENT AND TECHNOLOGY
ISSN: 1878-0296
年卷期: 2016 年 31 卷
页码:
收录情况: SCI
摘要: The adsorption characteristics of gold and palladium from hydrochloric acidic solutions onto the ethylenediamine-modified persimmon tannin adsorbent (EPPFR) have been investigated. Amine groups was successfully introduced into persimmon tannin resin to prepared this bifuctional adsorbent. Effects of HCl concentration, contact time, metal ions concentration, temperature were studied in detail. The adsorption capacity was strongly affected by HCl concentration. The complete adsorption equilibrium of Au(III) and Pd(II) was reached within 360 and 60 min, respectively. The adsorption isotherms were described by the typical monolayer type of Langmuir model, and the maximum uptake capacity was evaluated as 1550.4 and 112.6 mg g-1, respectively. The analysis of thermodynamic parameters revealed that the nature of adsorption was feasible, spontaneous and endothermic process. The applicability of adsorptive recovery of Au(III) and Pd(II) was investigated by treating waste printed circuit boards (PCBs) liquor leached with aqua regia, EPPFR can effectively adsorb precious metals but exhibited no affinity towards base metal ions. Characterized by FTIR, XRD, SEM, the adsorption of mechanisms were proposed to be redox and chelation, respectively. The present results suggested this tannin-based adsorbent EPPFR can serve as a potential adsorbent for the recovery of Au(III) and Pd(II) from waste PCBs liquor in hydrochloric acid solutions. (C) 2016 The Authors. Published by Elsevier B.V.
分类号:
- 相关文献
作者其他论文 更多>>
-
Genome-Wide Identification of miRNAs in Oily Persimmon (Diospyros oleifera Cheng) and Their Functional Targets Associated with Proanthocyanidin Metabolism
作者:Zhang, Meng;Hu, Xinlong;Yang, Sichao;Zhang, Meng;Hu, Xinlong;Yang, Sichao;Wu, Rong;Luo, Zhengrong;Zhang, Qinglin
关键词:
Diospyros oleifera ;Diospyros kaki ; proanthocyanidin; miRNA; deastringency -
Boosting Cost-Efficiency in Robotics: A Distributed Computing Approach for Harvesting Robots
作者:Xie, Feng;Xie, Feng;Li, Tao;Feng, Qingchun;Li, Tao;Feng, Qingchun;Chen, Liping;Zhao, Chunjiang;Zhao, Hui
关键词:5G network; computation allocation; edge computing; harvesting robot; visual system
-
Haplotype-resolved and chromosome-level reference genome assembly of Diospyros deyangensis provides insights into the evolution and juvenile growth of persimmon
作者:Guan, Changfei;Liu, Yunxiao;Li, Zhongxing;Zhang, Yangxin;Liu, Zhiguang;Zhu, Qinggang;Shen, Xiaoxia;Fang, Jing;Li, Jiayan;Guan, Qingmei;Yang, Yong;Zhao, Tao;Guan, Changfei;Liu, Yunxiao;Zhang, Yangxin;Liu, Zhiguang;Zhu, Qinggang;Fang, Jing;Li, Jiayan;Guan, Qingmei;Yang, Yong;Zhao, Tao;Li, Zhongxing;Shen, Xiaoxia;Zhang, Pingxian;Zhang, Qingling;Luo, Zhengrong
关键词:
-
Dynamic Task Planning for Multi-Arm Harvesting Robots Under Multiple Constraints Using Deep Reinforcement Learning
作者:Xie, Feng;Xie, Feng;Guo, Zhengwei;Li, Tao;Feng, Qingchun;Guo, Zhengwei;Zhao, Chunjiang;Li, Tao
关键词:multi-arm harvesting robots; target planning; multiple constraints; deep reinforcement learning
-
A comprehensive transcriptomic and metabolomic map reveals the molecular mechanism of persimmon fruit deastringency upon 40 °C warm water treatment
作者:Ding, Yu;Shen, Xiaoxia;Ding, Yuduan;Zhu, Qinggang;Yang, Yong;Guan, Changfei;Zhang, Pingxian;Wang, Yanbo;Du, Xiaoyun;Zhang, Qinglin;Luo, Zhengrong
关键词:Persimmon fruit; Warm water treatment; Deastringency; Transcriptomics; Metabolomics
-
Dynamic changes in metabolic compounds and their effects on flavor quality of Fuliang black tea and green tea during processing
作者:Dong, Fang;Yu, Wenjie;Zhuang, Shuai;Liu, Tao;Luo, Liping;Dong, Fang;Xie, Feng;Lai, Hongkun;Zhang, Gaowei;Sun, Qifang;Du, Shijuan;Li, Yan;Fan, Xiaoqing
关键词:Fuliang tea; Processing; Flavor quality; ROAV; Dynamic changes
-
Recombinase polymerase amplification combined with lateral flow biosensor for rapid visual detection of Clostridium perfringens in chicken meat and milk
作者:Tian, Rui;Xie, Feng;Liu, Guangjin;Zhang, Wei;Tian, Rui;Xie, Feng;Liu, Guangjin;Zhang, Wei;Liu, Yuqing;Li, Qingxia;Wang, Jinxiu;Dai, Lei;Zhang, Hongjian
关键词:foodborne pathogen; Clostridium perfringens; on-site detection method; recombinase polymerase amplification; lateral flow biosensor