Enhanced Reactive Brilliant Blue Removal Using Chitosan–Biochar Hydrogel Beads DOI Creative Commons
Yangyang Zhao, Yang Song, Rui Li

et al.

Molecules, Journal Year: 2023, Volume and Issue: 28(16), P. 6137 - 6137

Published: Aug. 19, 2023

To address the challenges associated with weak affinity and difficult separation of biochar, we developed chitosan-biochar hydrogel beads (CBHBs) as an efficient solution for removing reactive brilliant blue (RBB KN-R) from wastewater. The adsorption behavior mechanism RBB KN-R onto CBHBs were extensively studied. Notably, capacity showed pH-dependence, highest was observed at pH 2. process well fitted pseudo-second-order kinetic model intraparticle diffusion model. Film both responsible CBHBs. At 298.15 K, maximum qm determined to be 140.74 mg/g, higher temperatures favoring process. A complex involving π-π interactions, electrostatic attraction, hydrophobic interaction, hydrogen bonding found contribute overall experimental data discovered coexisting substances elevated ionic strength hindered capacity. Significantly, after three cycles adsorption-desorption, maintained above 95% KN-R. These promising results imply that are a durable cost-effective adsorbent removal dyes

Language: Английский

Unveiling an S-scheme F–Co3O4@Bi2WO6 heterojunction for robust water purification DOI Creative Commons
Linhan Jian, Guowen Wang,

Xinghui Liu

et al.

eScience, Journal Year: 2023, Volume and Issue: 4(1), P. 100206 - 100206

Published: Oct. 29, 2023

Devising a desirable nano-heterostructured photoelectrode based on the charge transfer kinetics mechanism is pivotal strategy for implementing efficient photoelectrocatalytic (PEC) technology, since separation and utilization efficiency of critical to its PEC performance. Herein, we fabricate F-Co3O4@Bi2WO6 core–shell hetero-array photoanode by coupling Bi2WO6 nanosheets with F-Co3O4 nanowires using simple solvothermal solution method. The three-dimensional hierarchical heterostructure has homogeneous chemical interface, helping it promote an S-scheme-based carrier transport maintain excellent cycling stability. Charge density difference calculations verify electron migration trend from upon hybridization formation internal electric field in heterojunction, consistent S-scheme mechanism, which identified situ irradiation X-ray photoelectron spectroscopy ultraviolet spectroscopy. optimized F-Co3O4@Bi2WO6-2 achieves high exhibits superior degradation performance various organic pollutants, including reactive brilliant blue KN-R, rhodamine B, sulfamethoxazole, bisphenol A. This work not only reveals that effective water remediation but also provides enhance designing binary oxides.

Language: Английский

Citations

44
Oxygen Doping Cooperated with Co‐N‐Fe Dual‐Catalytic Sites: Synergistic Mechanism for Catalytic Water Purification within Nanoconfined Membrane DOI Creative Commons
Ziwei Wang,

Zhigang Yi,

Lok Wing Wong

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(30)

Published: May 14, 2024

Abstract Atom‐site catalysts, especially for graphitic carbon nitride‐based represents one of the most promising candidates in catalysis membrane water decontamination. However, unravelling intricate relationships between synthesis‐structure–properties remains a great challenge. This study addresses impacts coordination environment and structure units metal central sites based on Mantel test, correlation analysis, evolution sites. An optimized unconventional oxygen doping cooperated with Co‐N‐Fe dual‐sites (OCN Co/Fe) exhibits synergistic mechanism efficient peroxymonosulfate activation, which benefits from significant increase charge density at active regulation natural population orbitals, leading to selective generation SO 4 •− . Building upon these findings, OCN‐Co/Fe/PVDF composite demonstrates 33 min −1 ciprofloxacin (CIP) rejection efficiency maintains over 96% CIP removal (over 24 h) an average permeance 130.95 L m −2 h work offers fundamental guide elucidating definitive origin catalytic performance advance oxidation process facilitate rational design separation improved enhanced stability.

Language: Английский

Citations

27
Synergistic Performance of ZnO/SnO2 Nanocomposites: Synthesis, Characterization, and Applications in Photocatalysis and Superoxide Radical Scavenger DOI

Abdelmadjid Guerram,

Salah Eddine Laouini, Hamdi Ali Mohammed

et al.

Journal of Cluster Science, Journal Year: 2024, Volume and Issue: 35(7), P. 2231 - 2242

Published: June 2, 2024

Language: Английский

Citations

18
The utilisation of coconut shell ash in production of hybrid composite: Microstructural characterisation and performance analysis DOI
Ashish Kumar, Akhileshwar Nirala,

Virendra Pratap Singh

et al.

Journal of Cleaner Production, Journal Year: 2023, Volume and Issue: 398, P. 136494 - 136494

Published: Feb. 23, 2023

Language: Английский

Citations

40
Designing advanced S‐scheme CdS QDs/La‐Bi2WO6 photocatalysts for efficient degradation of RhB DOI Creative Commons
Jing Ning,

Bohang Zhang,

Letu Siqin

et al.

Exploration, Journal Year: 2023, Volume and Issue: 3(5)

Published: Aug. 21, 2023

Finding effective strategies to design efficient photocatalysts and decompose refractory organic compounds in wastewater is a challenging problem. Herein, by coupling element doping constructing heterostructures, S-scheme CdS QDs/La-Bi

Language: Английский

Citations

35
Unveiling Hierarchical Dendritic Co3O4–SnO2 Heterostructure for Efficient Water Purification DOI
Linhan Jian, Ming Li,

Xinghui Liu

et al.

Nano Letters, Journal Year: 2023, Volume and Issue: 23(9), P. 3739 - 3747

Published: April 19, 2023

The construction of a desirable, environmentally friendly, and cost-effective nanoheterostructure photoanode to treat refractory organics is critical challenging. Herein, we unveiled hierarchical dendritic Co3O4–SnO2 heterostructure via sequential hydrothermal process. time the secondary process can control size ultrathin SnO2 nanosheets on basis Ostwald solidification mass conservation principle. Ti/Co3O4–SnO2-168h with growth demonstrated photoelectrocatalysis degradation rate ∼93.3% for high dye concentrate 90 mg/L acceptable long-term cyclability durability over reported Co3O4-based electrodes because large electrochemically active area, low charge transfer resistance, photocurrent intensity. To gain insight into photoelectric synergy, proposed type-II heterojunction between Co3O4 SnO2, which prevents photogenerated carriers' recombination improves generation dominant species •O2–, 1O2, h+. This work uncovered Ti/Co3O4–SnO2-168 as promising catalyst provided simple inexpensive assembly strategy obtain binary integrated nanohybrids targeted functionalities.

Language: Английский

Citations

34
Unusual aliovalent Cd doped γ‐Bi2MoO6 nanomaterial for efficient photocatalytic degradation of sulfamethoxazole and rhodamine B under visible light irradiation DOI Creative Commons

Bohang Zhang,

Canxiang Fang,

Jing Ning

et al.

Carbon Neutralization, Journal Year: 2023, Volume and Issue: 2(6), P. 646 - 660

Published: Oct. 31, 2023

Abstract Due to γ‐Bi 2 MoO 6 (BMO) has attracted considerable attention because of its unique layered perovskite structure and excellent electrical conductivity. However, the easy recombination electron–hole pairs limits practical application. To address this issue, we successfully prepared aliovalent Cd 2+ doped BMO (Cd‐BMO) by using a simple hydrothermal method for degradation sulfamethoxazole (SMZ) Rhodamine B (RhB). The result found that efficiency Cd‐BMO is significantly higher than BMO, despite an increase in bandgap after introduction . superior 8% Cd‐BMO, with smaller particle size larger specific surface area, can be attributed fast charge separation efficiency, low transfer resistance, rate pair recombination. Repeated ion spillover experiments prove shows good stability environmental protection. Theoretical simulation demonstrates offers electrons system due decreased binding energy BMO. sample provide suitable electric band edge generating dominant active radicals during degradation. This work not only provides potential candidate but also sheds light on design photocatalysts.

Language: Английский

Citations

33
Paracetamol environmental remediation and ecotoxicology: a review DOI
Yasmin Vieira,

Julia Eduarda Spode,

Guilherme Luiz Dotto

et al.

Environmental Chemistry Letters, Journal Year: 2024, Volume and Issue: 22(5), P. 2343 - 2373

Published: June 11, 2024

Language: Английский

Citations

11
Facile synthesis of SnO2/graphene and Bi–SnO2/graphene-based nanocomposites as electrode materials for energy storage devices DOI Creative Commons

Muhammad Kaleem Shabbir,

Wajid Ali,

Urooj Khanum

et al.

Results in Engineering, Journal Year: 2023, Volume and Issue: 20, P. 101520 - 101520

Published: Oct. 14, 2023

Graphene-based nanocomposites are widely investigated as cathode materials for energy storage device. Herein, tin oxide-modified graphene (SnO2/G) and bismuth-doped SnO2/G (Bi–SnO2/G) with nanorod-like morphology were synthesized by the combination of electrochemical wet chemical methods. The as-prepared characterized using Raman spectroscopy, X-ray diffraction, fourier-Transform scanning electronic microscopy. Further, impedance spectroscopy (EIS), galvanostatic charge-discharge (GCD) curves, cyclic voltammetry (CV) utilized to assess ultra-capacitor properties Bi–SnO2/G nanocomposites.The performance demonstrated exceptional specific capacitance 487 F/g 174 F/g, respectively, at 5 mV/s compared pristine (108 F/g) SnO2 nanoparticles (117 F/g). While, GCD study confirmed stability these electrodes. Overall, have shown good in all assays.

Language: Английский

Citations

20
Electrochemical oxidation of azo dyes degradation by RuO2–IrO2–TiO2 electrode with biodegradation Aeromonas hydrophila AR1 and its degradation pathway: An integrated approach DOI

Subramani Abilaji,

Jayaraman Narenkumar,

Bhaskar Das

et al.

Chemosphere, Journal Year: 2023, Volume and Issue: 345, P. 140516 - 140516

Published: Oct. 22, 2023

Language: Английский

Citations

17