A novel iron-based composite flocculant for enhanced wastewater treatment and upcycling hazardous sludge into trifunctional electrocatalyst
Source abstract
Abstract
Abstract Sewage sludge, an unavoidable by-product of industrial wastewater treatment, is facing multitudinous challenges in drawing a cost-effective compromise between environmental and economic acceptance. The aim of this research is to produce high-quality energy materials by utilizing hazardous waster as precursors. A novel inorganic-organic composite flocculant was first manufactured and used as an efficient binary-coagulant for enhanced dyes removal and Fe-containing textile sludge (TS-Fe) production from dyeing wastewater. Then, three-dimensional interconnected hierarchical porous iron-nitrogen doped carbon materials (TS-Fe-N-C) were fabricated by pyrolysis of TS-Fe to realize the resource recovery. Upon accurate control the composition of TS-Fe-N-C, the optimal TS-Fe-N-C-0.23 has excellent performance for oxygen reduction reaction (half-wave potential of 0.837 V), oxygen evolution reaction (overpotential of 0.328 V at 10 mA cm-2), and hydrogen evolution reaction (overpotential of 0.144 V at 10 mA cm-2). Moreover, Zn-air battery and water splitting device based on TS-Fe-N-C-0.23 electrodes displayed satisfactory energy density (770.0 mAh g-1), power density (120.5 mW cm-2), and low water splitting voltage (1.70 V @ 10 mA cm-2). This study suggests that rational design of flocs by conventional wastewater treatment technologies is an effective strategy for optimizing the composition of sludge and boosting the additional value to the sludge-derived biochar product.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nanomaterials for catalytic reactions · Electrocatalysts for Energy Conversion · Membrane-based Ion Separation Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (62)
Show source-provided references
1. Improved reactive dye fixation on ramie fiber in liquid ammonia and optimization of fixation parameters using the Taguchi approach10.1016/j.dyepig.2020.108734 ↗
2. Cost-effective reactive dyeing using spent cooking oil for minimal discharge of dyes and salts10.1016/j.jclepro.2019.04.277 ↗
3. Fabrication of Chitosan Nanofiltration Membranes by the Film Casting Strategy for Effective Removal of Dyes/Salts in Textile Wastewater10.1021/acssuschemeng.9b07026 ↗
4. Synergetic adsorption and electrochemical classified recycling of Cr(VI) and dyes in synthetic dyeing wastewater10.1016/j.cej.2019.123232 ↗
5. Rapid and efficient removal of heavy metal and cationic dye by carboxylate-rich magnetic chitosan flocculants: Role of ionic groups10.1016/j.carbpol.2017.10.089 ↗
6. Tannic acid-polyethyleneimine crosslinked loose nanofiltration membrane for dye/salt mixture separation10.1016/j.memsci.2019.05.002 ↗
7. Current Perspectives and Future Prospects of Nano-Biotechnology in Wastewater Treatment10.1080/15422119.2019.1630430 ↗
8. Performance evaluation and optimization of flocculation process for removing heavy metal10.1016/j.cej.2019.123911 ↗
9. Fabrication of a cationic polysaccharide for high performance flocculation10.1016/j.colsurfa.2017.02.078 ↗
10. Application of the central composite design to study the flocculation of an anionic azo dye using quaternized cellulose nanofibrils10.1016/j.carbpol.2015.06.095 ↗
11. Critical review on dewatering of sewage sludge: Influential mechanism, conditioning technologies and implications to sludge re-utilizations10.1016/j.watres.2020.115912 ↗
12. Energy-positive sewage sludge pre-treatment with a novel ultrasonic flatbed reactor at low energy input10.1016/j.biortech.2018.05.073 ↗
13. Conversion of sewage sludge into environmental catalyst and microbial fuel cell electrode material: A review10.1016/j.scitotenv.2019.02.200 ↗
14. Thermochemical conversion of sewage sludge: A critical review10.1016/j.pecs.2020.100843 ↗
15. Sewage sludge-based functional nanomaterials: development and applications10.1039/C6EN00177G ↗
16. Activation of peroxymonosulfate by sludge-derived biochar for the degradation of triclosan in water and wastewater10.1016/j.cej.2018.09.062 ↗
17. Biochar: a potential route for recycling of phosphorus in agricultural residues10.1111/gcbb.12365 ↗
18. ZnCl2 modified biochar derived from aerobic granular sludge for developed microporosity and enhanced adsorption to tetracycline10.1016/j.biortech.2019.122381 ↗
19. Upcycling of Electroplating Sludge into Ultrafine Sn@C Nanorods with Highly Stable Lithium Storage Performance10.1021/acs.nanolett.8b04944 ↗
20. An efficient and durable trifunctional electrocatalyst for zinc-air batteries driven overall water splitting10.1016/j.apcatb.2021.120405 ↗
21. Novel Composites of α-Fe2O3 Tetrakaidecahedron and Graphene Oxide as an Effective Photoelectrode with Enhanced Photocurrent Performances10.1002/adfm.201505554 ↗
22. Nitrogen-doped graphene encapsulated FeCoMoS nanoparticles as advanced trifunctional catalyst for water splitting devices and zinc-air batteries10.1016/j.apcatb.2020.119381 ↗
23. Nitrogen-Doped Porous Carbon Derived from Biomass Used as Trifunctional Electrocatalyst toward Oxygen Reduction, Oxygen Evolution and Hydrogen Evolution Reactions10.3390/nano10010076 ↗
24. Three-dimensional bimetal TMO supported carbon based electrocatalyst developed via dry synthesis for hydrogen and oxygen evolution10.1016/j.apsusc.2019.144642 ↗
25. High-Performance Trifunctional Electrocatalysts Based on FeCo/Co2P Hybrid Nanoparticles for Zinc-Air Battery and Self-Powered Overall Water Splitting10.1002/aenm.201903854 ↗
26. Novel Route to Fe-Based Cathode as an Efficient Bifunctional Catalysts for Rechargeable Zn-Air Battery10.1002/aenm.201800955 ↗
27. Bifunctional electrocatalysts for Zn-air batteries: recent developments and future perspectives10.1039/C9TA14231B ↗
28. A New Fuel Cell Cathode Catalyst10.1038/2011212a0 ↗
29. Fe, N-decorated three dimension porous carbonaceous matrix for highly efficient oxygen reduction reaction10.1016/j.apsusc.2019.144635 ↗
30. Propagating Fe-N4 active sites with Vitamin C to efficiently drive oxygen electrocatalysis10.1016/j.nanoen.2020.105714 ↗
31. 3D flower-like ZnFe-ZIF derived hierarchical Fe, N-Codoped carbon architecture for enhanced oxygen reduction in both alkaline and acidic media, and zinc-air battery performance10.1016/j.carbon.2020.01.108 ↗
32. Fe3C-Co Nanoparticles Encapsulated in a Hierarchical Structure of N-Doped Carbon as a Multifunctional Electrocatalyst for ORR, OER, and HER10.1002/adfm.201901949 ↗
33. Sulfuration of an Fe-N-C Catalyst Containing FexC/Fe Species to Enhance the Catalysis of Oxygen Reduction in Acidic Media and for Use in Flexible Zn-Air Batteries10.1002/adma.201804504 ↗
34. N-doped porous carbon-encapsulated Fe nanoparticles as efficient electrocatalysts for oxygen reduction reaction10.1016/j.apsusc.2018.03.145 ↗
35. Flocculant-Assisted Synthesis of Graphene-Like Carbon Nanosheets for Oxygen Reduction Reaction and Supercapacitor10.3390/nano9081135 ↗
36. Activity and degradation study of an Fe-N-C catalyst for ORR in Direct Methanol Fuel Cell (DMFC)10.1016/j.apcatb.2019.118217 ↗
37. Two-Dimensional Mesoporous Carbon Doped with Fe-N Active Sites for Efficient Oxygen Reduction10.1021/acscatal.7b02101 ↗
38. Atomically Dispersed Fe-Nx/C Electrocatalyst Boosts Oxygen Catalysis via a New Metal-Organic Polymer Supramolecule Strategy10.1002/aenm.201801226 ↗
39. Chitosan- metal complexes as antimicrobial agent: Synthesis, characterization and Structure-activity study10.1007/s00289-005-0414-1 ↗
40. Attempted chemical synthesis of graphite-like carbon nitride10.1039/b007673m ↗
41. A complex-sequestered strategy to fabricate Fe single-atom catalyst for efficient oxygen reduction in a broad pH-range10.1016/j.apcatb.2020.119270 ↗
42. Utilization of diatomite/chitosan–Fe (III) composite for the removal of anionic azo dyes from wastewater: Equilibrium, kinetics and thermodynamics10.1016/j.colsurfa.2014.12.015 ↗
43. Efficient one-pot synthesis of n-butyl levulinate from carbohydrates catalyzed by Fe2(SO4)310.1016/j.jechem.2016.11.015 ↗
44. The preparation and characterization of chitosan rods modified with Fe3+ by a chelation mechanism10.1016/j.carres.2011.02.006 ↗
45. Porous Core-Shell Fe3C Embedded N-doped Carbon Nanofibers as an Effective Electrocatalysts for Oxygen Reduction Reaction10.1021/acsami.5b11786 ↗
46. Ultrafine Fe/Fe3C decorated on Fe-N-C as bifunctional oxygen electrocatalysts for efficient Zn-air batteries10.1016/j.jechem.2020.07.048 ↗
47. Turning on electrocatalytic oxygen reduction by creating robust Fe-Nx species in hollow carbon frameworks via in situ growth of Fe doped ZIFs on g-C3N410.1039/D0NR00138D ↗
48. Fe3C/Fe2O3 heterostructure embedded in N-doped graphene as a bifunctional catalyst for quasi-solid-state zinc-air batteries10.1016/j.carbon.2019.02.046 ↗
49. 3D Edge-Enriched Fe3C@C Nanocrystals with a Core-Shell Structure Grown on Reduced Graphene Oxide Networks for Efficient Oxygen Reduction Reaction10.1002/cssc.201801084 ↗
50. Raman spectroscopy of graphene-based materials and its applications in related devices10.1039/C6CS00915H ↗
51. g-C3N4 templated synthesis of the Fe3C@NSC electrocatalyst enriched with Fe-Nx active sites for efficient oxygen reduction reaction10.1039/C9TA01837A ↗
52. Efficient Oxygen Reduction Reaction (ORR) Catalysts Based on Single Iron Atoms Dispersed on a Hierarchically Structured Porous Carbon Framework10.1002/anie.201804958 ↗
53. Ultrafine Fe/Fe3C decorated on Fe-Nx-C as bifunctional oxygen electrocatalysts for efficient Zn-air batteries10.1016/j.jechem.2020.07.048 ↗
54. Cu nanoparticles supported on graphitic carbon nitride as an efficient electrocatalyst for oxygen reduction reaction10.1016/S1872-2067(17)62764-5 ↗
55. Low content of Fe3C anchored on Fe, N, S-codoped graphene-like carbon as bifunctional electrocatalyst for oxygen reduction and oxygen evolution reactions10.1016/j.carbon.2019.05.012 ↗
56. Noble-metal-free Fe-N/C catalyst for highly efficient oxygen reduction reaction under both alkaline and acidic conditions10.1021/ja504696r ↗
57. Heterostructure-Promoted Oxygen Electrocatalysis Enables Rechargeable ZincAir Battery with Neutral Aqueous Electrolyte10.1021/jacs.8b09805 ↗
58. Nitrogen-Doped Sponge Ni Fibers as Highly Efficient Electrocatalysts for Oxygen Evolution Reaction10.1007/s40820-019-0253-5 ↗
59. Plasma-Assisted Synthesis of NiCoP for Efficient Overall Water Splitting10.1021/acs.nanolett.6b03803 ↗
60. Ultrathin Ti3C2Tx (MXene) Nanosheet-Wrapped NiSe2 Octahedral Crystal for Enhanced Supercapacitor Performance and Synergetic Electrocatalytic Water Splitting10.1007/s40820-019-0261-5 ↗
61. Versatile electrocatalytic processes realized by Ni, Co and Fe alloyed core coordinated carbon shells10.1039/C9TA01723B ↗
62. Defect Engineering toward Atomic Co-Nx-C in Hierarchical Graphene for Rechargeable Flexible Solid Zn-Air Batteries10.1002/adma.201703185 ↗