The Amination of Waste Newsprint Paper with Various Aminating Agents (Ammonia Water, Ethylenediamine, and Diethylenetriamine) to Improve the Sorption Efficiency of Anionic Dyes DOI Creative Commons
Tomasz Jóźwiak

Molecules, Journal Year: 2024, Volume and Issue: 29(24), P. 6024 - 6024

Published: Dec. 20, 2024

This study aimed to investigate the effect of aminating waste newsprint paper with different agents (ammonia/ammonia water, ethylenediamine, and diethylenetriamine) for sorption efficiency Reactive Black 5 (RB5) Yellow 84 (RY84) dyes. To increase amination efficiency, material was pre-activated epichlorohydrin. The scope this included characterization sorbents tested (FTIR, elemental analysis, BET surface area, porosity, pHPZC), determination influence pH on dye kinetics, maximum capacity results showed that ethylenediamine diethylenetriamine introduced 87% 194% more amine groups into sorbent’s structure compared treatment ammonia. RB5 RY84 highest in range 2–3. equilibrium time ranged from 90 150 min longer case unmodified sorbents. experimental data were best described by pseudo-second-order model Langmuir 1 2 models. Amination had a very strong newsprint. For example, towards (Qmax = 7.12 mg/g) increased after ammonia, value Qmax 182.78 mg/g, 202.7 231.5 respectively.

Language: Английский

Eco-nano solutions for rapid phosphorus recovery: Closing the loop for sustainable agriculture DOI Creative Commons
Atif Muhmood, Shihao Cui, Jingyu Wang

et al.

The Science of The Total Environment, Journal Year: 2025, Volume and Issue: 964, P. 178477 - 178477

Published: Jan. 20, 2025

Language: Английский

Citations

2
Versatile Eco‐Friendly Activated Carbon–Based Green Catalysts: Energy and Environmental Applications DOI Open Access

Mian Hamood‐ur‐Rehman,

Murid Hussain, Parveen Akhter

et al.

ChemBioEng Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: March 30, 2025

Abstract Biomass‐derived activated carbon (AC) offers a sustainable solution for energy and environmental applications. Compared to coal‐based AC, biomass‐derived AC reduces impact while maintaining high porosity adsorption capacity. Its synthesis involves carbonization activation, enhancing properties. Efficiency depends on particle size, surface area, pore structure, functional groups. Smaller particles higher areas enhance adsorption, whereas micropores serve as primary sites. Functional groups influence chemical interactions. Regeneration methods extend usability. AC‐based catalysts improve hydrogen production biodiesel synthesis. In wastewater treatment, iron oxide–impregnated enhances dye removal, titania/AC composites boost photocatalytic degradation of organic pollutants. also plays crucial role in dioxide (CO 2 ) capture, with potassium hydroxide (KOH)‐synthesized optimizing micropore formation. faces challenges biomass supply, logistics, regeneration efficiency, selectivity, requiring innovative activation modifications.

Language: Английский

Citations

0
Performance of Powdered Activated Coke Produced by One-Step Rapid Process from Lignite: Phenol Adsorption from Synthetic Wastewater and Hydrothermal Regeneration DOI Open Access
Guangning Chen, Hao Xu, Shouyan Chen

et al.

Water, Journal Year: 2025, Volume and Issue: 17(8), P. 1161 - 1161

Published: April 13, 2025

Low-cost powdered activated coke (PAC) produced by a one-step rapid method with lignite was used as an adsorbent for the advanced treatment of phenol-containing wastewater to evaluate feasibility replacing high-cost commercial carbon. Characterization using infrared spectral analysis, SEM, and BET showed that PAC mesopores were well developed. exhibited high adsorption performance phenol in static experiments. The almost equilibrium within 20 min, removal efficiency reached 85.4% 1.5 g L−1 99.9% 4 PAC. As common components wastewater, NaCl Na2SO4 did not exhibit significant competitive process occurred accordance Langmuir model pseudo-second order kinetic model. Furthermore, effects hydrothermal regeneration on adsorbing studied, capacity after five cycles 86.1% new PAC, which still had good performance. offers advantages terms capacity, economic feasibility, regeneration, recycling, providing practical solution problem pollution.

Language: Английский

Citations

0
In Situ Ultrasonic-backwash Regeneration of Upflow Activated Carbon Filters for Improved Removal of Organics from Drinking Water DOI

Yuanxiang Shan,

Bingjie Zhou,

Zhendong Liu

et al.

Process Safety and Environmental Protection, Journal Year: 2025, Volume and Issue: unknown, P. 107188 - 107188

Published: April 1, 2025

Language: Английский

Citations

0
Enhanced GenX (HFPO‑DA) Degradation during Microwave Regeneration of Activated Carbon through Hotspot Distribution Control DOI
Chen‐Yang Li, Haorui Zhang, Tong Zheng

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: 13(3), P. 116953 - 116953

Published: May 5, 2025

Language: Английский

Citations

0
The Combination of Nitrogen (N2) Pyrolysis and Carbon Dioxide (CO2) Activation for Regenerating Spent Activated Carbon DOI Creative Commons

Ya-Chen Ye,

Wen-Shing Chen,

Chi-Hung Tsai

et al.

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(10), P. 5336 - 5336

Published: May 10, 2025

In line with the principles of circular economy, this study aimed to develop a pyrolysis-activation regeneration process capable producing highly porous carbon materials from spent granular activated (GAC), which was generated by high-tech electronics manufacturing company in Taiwan. Thermogravimetric analysis (TGA) and other thermochemical analyses were first conducted investigate thermal decomposition behavior GAC. Subsequently, system employed perform N2 pyrolysis CO2 activation experiments under various conditions (i.e., 800, 850, 900 °C for holding 0, 30, 60 min, respectively). Analytical instruments included surface area porosimeter pore property analysis, scanning electron microscopy (SEM) texture observation, energy dispersive X-ray spectroscopy (EDS) elemental distribution analysis. The results revealed that properties thermally regenerated GAC significantly improved compared GAC, indicating effective removal or adsorbed organics deposited substances conditions. Additionally, via physical led enhanced simple pyrolysis. maximum BET achieved exceeded 720 m2/g, greater than those (approximately 425 m2/g) N2-pyrolyzed 570 same 30 min time).

Language: Английский

Citations

0
Characteristics and optimization strategy of microwave thermal regeneration of spent activated carbon based on a multi-physical field model DOI

Feifan Huang,

Tong Wang, Shiliang Wu

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 500, P. 156950 - 156950

Published: Oct. 25, 2024

Language: Английский

Citations

0
Activated carbon as a catalyst to promote the reactivity of hydroquinone in skin whitening cosmetics DOI
Xuexue Pan,

Xinru Su,

Shao‐Ying Hua

et al.

Journal of Porous Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 27, 2024

Language: Английский

Citations

0
The Amination of Waste Newsprint Paper with Various Aminating Agents (Ammonia Water, Ethylenediamine, and Diethylenetriamine) to Improve the Sorption Efficiency of Anionic Dyes DOI Creative Commons
Tomasz Jóźwiak

Molecules, Journal Year: 2024, Volume and Issue: 29(24), P. 6024 - 6024

Published: Dec. 20, 2024

This study aimed to investigate the effect of aminating waste newsprint paper with different agents (ammonia/ammonia water, ethylenediamine, and diethylenetriamine) for sorption efficiency Reactive Black 5 (RB5) Yellow 84 (RY84) dyes. To increase amination efficiency, material was pre-activated epichlorohydrin. The scope this included characterization sorbents tested (FTIR, elemental analysis, BET surface area, porosity, pHPZC), determination influence pH on dye kinetics, maximum capacity results showed that ethylenediamine diethylenetriamine introduced 87% 194% more amine groups into sorbent’s structure compared treatment ammonia. RB5 RY84 highest in range 2–3. equilibrium time ranged from 90 150 min longer case unmodified sorbents. experimental data were best described by pseudo-second-order model Langmuir 1 2 models. Amination had a very strong newsprint. For example, towards (Qmax = 7.12 mg/g) increased after ammonia, value Qmax 182.78 mg/g, 202.7 231.5 respectively.

Language: Английский

Citations

0