| Title | Circular utilization of Co(II) adsorbed composites for efficient organic pollutants degradation by transforming into Co/N-doped carbonaceous catalyst |
|---|---|
| ID_Doc | 14904 |
| Authors | Bo, SF; Luo, JM; An, QD; Zhao, X; Xiao, ZY; Zhai, SR; Li, ZC |
| Title | Circular utilization of Co(II) adsorbed composites for efficient organic pollutants degradation by transforming into Co/N-doped carbonaceous catalyst |
| Year | 2019 |
| Published | |
| Abstract | Resource recovery and environmental remediation serve to meet the scientific and technical challenges of cost-effective and sustainable strategy, especially for circular utilization of valuable metal and treatment of various wastewater (toxic metal ions, organics, etc.). Encouragingly, the research on circular utilization of recovered valuable metals in peroxymonosulfate (PMS) activation for pollutants degradation is currently in blank; herein, a multistage utilization process for preparing Co/N-doped carbonaceous catalyst is plausibly proposed for the first time. Namely, by using a cheap and abundant alginate as a self-generating 3D network precursor, the interior/exterior modified aerogel beads (denoted as Ca-Me/ SA@0.75PEI) are fabricated via a simple sol-gel assembly for toxic metals removal or valuable metals recovery, following that Co2+ adsorbed composite (denoted as Ca-Me/SA@0.75PEI-Co) are converted into Co/N-doped carbonaceous catalyst (denoted as Ca-NC@0.75PEI-Co-700) by carbonization. Increased surface chelating sites and polarity with abundant functional components (N 15.68%) bring strong affinity to metal ions via ion-exchange, complexation and electrostatic interactions. Detailed isotherms, kinetics and dynamic studies illuminate the high adsorption capacity (698.62 mg/g), fast adsorption rate and long-term operation stability of Ca-Me/SA@0.75PEI adsorbent toward Co2+, respectively. Of particular interest of is that, the catalyst evolved from Co2+ adsorbed composite exhibits relatively-superior catalytic ability towards utilizing PMS oxidant to degrade organic pollutants. Animatingly, the simulation of real water system makes it potential for the multistage utilization of composites in actual industrial wastewater treatment. The coupling of watermelon-like structure and Co/N co-doping endows the adsorptive catalyst sustainable utilization capacity in heterogeneous catalysis based on the concept of "utilizing waste treating waste" circular economy, avoiding the problem of insufficient stability of ion adsorbed aerogel catalyst in PMS homogeneous catalysis. (C) 2019 Elsevier Ltd. All rights reserved. |
Similar Articles
| ID | Score | Article |
|---|---|---|
12926
|
Wang, J; Yang, QF; Yang, WX; Pei, HN; Zhang, L; Zhang, TS; Hu, N; Suo, YR; Wang, JL Adsorptive catalysis of hierarchical porous heteroatom-doped biomass: from recovered heavy metal to efficient pollutant decontamination(2018)Journal Of Materials Chemistry A, 6.0, 34 | |
| 19870
|
Dutta, T; Kim, T; Vellingiri, K; Tsang, DCW; Shon, JR; Kim, KH; Kumar, S Recycling and regeneration of carbonaceous and porous materials through thermal or solvent treatment(2019) | |
| 13836
|
Qi, TY; Chen, X; Zhang, JZ; Gao, JB; Hao, RL; Crittenden, J Oxygen-vacancy enhanced CoO/CeO2 heterojunction for synchronous regulation of sulfur resourcing and selenium adsorption separation from flue gas desulfurization wastewater(2023)Journal Of Materials Chemistry A, 11, 26 | |
| 14011
|
Dziejarski, B; Serafin, J; Andersson, K; Krzyzynska, R CO2 capture materials: a review of current trends and future challenges(2023) | |
| 29080
|
Bashri, M; Kumar, S; Bhandari, P; Stephen, S; O'Connor, MJ; Gaber, S; Skorjanc, T; Finsgar, M; Luckachan, GE; Belec, B; Alhseinat, E; Mukherjee, PS; Shetty, D Hydrazone-Linked Covalent Organic Framework Catalyst via Efficient Pd Recovery from Wastewater(2024) | |
| 27965
|
Sharif, HMA; Ali, M; Mahmood, A; Asif, MB; Din, MAU; Sillanpaa, M; Mahmood, A; Yang, B Separation of Fe from wastewater and its use for NOx reduction; a sustainable approach for environmental remediation(2022) | |
| 21660
|
Campisi, S; Leone, M; Papacchini, M; Evangelisti, C; Polito, L; Postole, G; Gervasini, A Multifunctional interfaces for multiple uses: Tin(II)-hydroxyapatite for reductive adsorption of Cr(VI) and its upcycling into catalyst for air protection reactions(2023) |