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author:

Weng, Rengui (Weng, Rengui.) [1] | Chen, Guohong (Chen, Guohong.) [2] | Liu, Yifan (Liu, Yifan.) [3] | Lv, Yuancai (Lv, Yuancai.) [4] (Scholars:吕源财) | Lin, Chunxiang (Lin, Chunxiang.) [5] (Scholars:林春香) | Ye, Xiaoxia (Ye, Xiaoxia.) [6] (Scholars:叶晓霞) | Liu, Minghua (Liu, Minghua.) [7]

Indexed by:

EI Scopus SCIE

Abstract:

A reductive cellulose-based aerogel (VTCA) was fabricated from cellulose by introducing valonea tannin through cross-linking reaction. VTCA owned high porosity of more than 96% with the average pore size of 30-50 & mu;m, and it exhibited good adsorption performance for Au(III) at a wide pH values range (1-8) with the max adsorption capacity of 243.1 mg g-1. VTCA showed good adsorption performance for Au(III) under the interference of various co-existing ions. The adsorption obeyed the pseudo-second-order kinetic model and the Langmuir adsorption isotherm model, and temperature rise was favorable for adsorption. The adsorption-reduction mechanisms mainly involved electrostatic interaction, chelation adsorption and reduction. Au(III) could be effectively adsorbed onto the surface of VTCA by electrostatic attraction and chelation, and then reduced in situ to Au0 by phenolic hydroxyl on tannic structure. This study provides a new adsorbent with the advantages of convenient preparation and high efficiency, and it has great application prospects in the enrichment and recovery of precious metals in waste liquid and the treatment of oxidized pollutants.

Keyword:

Adsorption Au(III) Cellulose-based aerogel Reduction Valonea tannin

Community:

  • [ 1 ] [Weng, Rengui]Fujian Univ Technol, Indoor Environm Engn Res Ctr Fujian Prov, Fuzhou 350118, Peoples R China
  • [ 2 ] [Chen, Guohong]Fujian Univ Technol, Indoor Environm Engn Res Ctr Fujian Prov, Fuzhou 350118, Peoples R China
  • [ 3 ] [Liu, Yifan]Fuzhou Univ, Coll Environm & Safety Engn, Fujian Prov Engn Res Ctr Rural Waste Recycling Tec, Fuzhou 350108, Peoples R China
  • [ 4 ] [Lv, Yuancai]Fuzhou Univ, Coll Environm & Safety Engn, Fujian Prov Engn Res Ctr Rural Waste Recycling Tec, Fuzhou 350108, Peoples R China
  • [ 5 ] [Lin, Chunxiang]Fuzhou Univ, Coll Environm & Safety Engn, Fujian Prov Engn Res Ctr Rural Waste Recycling Tec, Fuzhou 350108, Peoples R China
  • [ 6 ] [Ye, Xiaoxia]Fuzhou Univ, Coll Environm & Safety Engn, Fujian Prov Engn Res Ctr Rural Waste Recycling Tec, Fuzhou 350108, Peoples R China
  • [ 7 ] [Liu, Minghua]Fuzhou Univ, Coll Environm & Safety Engn, Fujian Prov Engn Res Ctr Rural Waste Recycling Tec, Fuzhou 350108, Peoples R China
  • [ 8 ] [Liu, Minghua]Putian Univ, Coll Environm & Biol Engn, Putian 351100, Peoples R China
  • [ 9 ] [Liu, Yifan]Fuzhou Univ, Coll Environm & Safety Engn, 2 North Wulongjiang Ave, Fuzhou 350108, Fujian, Peoples R China
  • [ 10 ] [Liu, Minghua]Fuzhou Univ, Coll Environm & Safety Engn, 2 North Wulongjiang Ave, Fuzhou 350108, Fujian, Peoples R China

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Source :

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION

ISSN: 0957-5820

Year: 2023

Volume: 178

Page: 204-213

6 . 9

JCR@2023

6 . 9 0 0

JCR@2023

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 5

SCOPUS Cited Count: 4

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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