In-situ constructing AlTiZn/CN heterojunction via memory effect for effective degradation of naphthalene under UV irradiation DOI
Jinhua Liang, Weikang Li,

Tianyi Yang

et al.

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: 193, P. 501 - 513

Published: Nov. 13, 2024

Language: Английский

Mechanistic Insights into Simultaneous Oxygen-Doped and Defect-Engineered Carbon Nitride as a Multifunctional Photocatalyst for Tetracycline Degradation, N2 Fixation, and H2O2 Production DOI
Akash Balakrishnan, Emmanuel Sebastian Kunnel,

Suverna Trivedi

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: 63(44), P. 18975 - 18988

Published: Oct. 24, 2024

The ease of synthesis affordable photocatalysts activated by visible light and exhibiting exceptional photocatalytic performance is highly advantageous for addressing energy environmental problems. Herein, simultaneous oxygen-doped defect-engineered carbon nitride (ACN) was easily prepared via thermal calcination using ammonium oxalate as the chemical functionalization agent. experimental studies claimed a maximum tetracycline degradation 88% in 60 min irradiation. ACN displayed 721 μM H2O2 316 ammonia generation illumination. remarkable efficiency photocatalyst linked to its enhanced utilization, achieved modifying bandgap. Also, increased surface area facilitates better charge carrier separation, while defect formation concurrent oxygen doping work suppress recombination. Scavenger highlighted critical role superoxide radicals electrons photocatalysis process. Nitrogen defects heteroatoms facilitate effective separation forming electron–hole pairs within delocalized system under light, which promotes interfacial contact decomposition tetracycline. A metal-free, chemically functionalized photocatalyst, enriched with doped oxygen, employed an affordable, efficient, environmentally friendly material remediation.

Language: Английский

Citations

3
Synergistic iron enhanced aerogel and peracetic acid for degradation of emerging organic contaminants DOI Creative Commons
Lili Jin, Tong Li, Xiaoya Fang

et al.

npj Clean Water, Journal Year: 2024, Volume and Issue: 7(1)

Published: Nov. 29, 2024

In response to the urgent need for efficient degradation of emerging organic contaminants, this study has developed a novel catalytic system based on an original Fe-doped aerogel catalyst (FeCAS) and its carbonization-enhanced variant (FeCAS-400), designed improve activation performance peracetic acid (PAA). The FeCAS/PAA achieves remarkable 96.1% sulfamethoxazole (SMX) without external energy input, while FeCAS-400/PAA further elevates SMX removal rate 98.4% (kobs = 0.326 min−¹) demonstrates effectiveness across broad pH range 3–11. Theoretical calculations reveal that carbonization enhances electron transfer between iron–carbon substrates, which contributes improved performance. also exhibits versatility in removing wide prevalent contaminants proves effective real water matrices. This synergistic approach, combining aerogels with metal–carbon transfer, holds promise extension other advanced oxidation processes, contributing assurance quality safety sustainability.

Language: Английский

Citations

2
Facile synthesis of a novel Zn2Ti3O8 aerogel with porous structure for high-efficient degradation of antibiotics under simulated sunlight DOI

Meiyu Yuan,

Yingying Zhu, Junjie Fu

et al.

Ceramics International, Journal Year: 2023, Volume and Issue: 49(14), P. 23264 - 23275

Published: April 28, 2023

Language: Английский

Citations

6
Synthesis, utilization, and recycling of graphene oxide-based nanohybrid biopolymeric hydrogels for purification of dye wastewater DOI Creative Commons

Omera Sarwar,

Ruba Munir,

Nageen Mushtaq

et al.

AQUA - Water Infrastructure Ecosystems and Society, Journal Year: 2024, Volume and Issue: 73(6), P. 1228 - 1256

Published: May 10, 2024

ABSTRACT Wastewater from industries contributes significantly to pollution. Adsorption of acidic dye using nanohybrid biopolymeric hydrogels has evolved as one the viable techniques. Graphene oxide (GO)/chitosan (CS)–polyvinyl alcohol (PVA), GO/starch–PVA, and GO/agar–PVA were synthesized. The results revealed that following are ideal values: GO/CS–PVA: 3 pH (8.251 mg g−1), 0.05 g/50mL dosage 90 min 12 ppm concentration 30 °C g−1); for GO/starch–PVA: 2 (7.437 g/50 mL GO/agar–PVA; (6.142 g−1). GO/CS–PVA outperformed other hydrogels. Langmuir model suited data, while GO/starch–PVA followed Freundlich isotherm models. adsorption capacity data a pseudo-second-order model. Negative value Gibbs free energy enthalpy showed reactions spontaneous exothermic in nature. presence heavy metals, electrolytes, detergents/surfactants affected adsorption. Entropy changes positive values implied randomness at solid/solution contact. desorption (60, 55, 58%) GO/CS–PVA, was obtained 0.5 N NaOH. Scanning electron microscope, X-ray diffraction, Fourier transform infrared (FT-IR) used characterization.

Language: Английский

Citations

1
3D g-C3N4/WS2/Agarose Aerogel Photocatalyst for Near-Complete Degradation of Broad-Spectrum Antibiotics in Batch and Continuous Flow Modes DOI
Mario Vino Lincy Gnanaguru, Debanjali Dey, Makarand M. Ghangrekar

et al.

ACS ES&T Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 29, 2024

Language: Английский

Citations

1
Ultrastrong SiC/LDHs biomass aerogel with exceptional fire safety behavior DOI Creative Commons
Nannan Wang,

Xinyuan Cao,

Feng Wei

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 501, P. 157350 - 157350

Published: Nov. 14, 2024

Language: Английский

Citations

1
Antibacterial and Anticorrosive Hydrogel Coating Based on Complementary Functions of Sodium Alginate and g-C3N4 DOI Creative Commons

Zishuai Hu,

Baochen Han, Jianhui Li

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(17), P. 4192 - 4192

Published: Sept. 4, 2024

Graphitic carbon nitride (g-C3N4, CN) has emerged as a promising photocatalytic material due to its inherent stability, antibacterial properties, and eco-friendliness. However, tendency aggregate limited dispersion hinder efficacy in practical applications. To address these limitations, this study focuses on developing composite hydrogel coating, which sodium alginate (SA) molecules interact electrostatically through hydrogen bonding anchor CN, thereby significantly improving dispersion. The optimal CN loading of 35% results with tensile strength 120 MPa an rate 99.87% within 6 h. enhanced mechanical properties are attributed between the -NH2 groups -OH SA, while SA facilitate attraction photogenerated holes from promoting carrier transfer separation, strengthening action. Moreover, coating exhibits excellent corrosion resistance capabilities against Pseudomonas aeruginosa 316L stainless steel (316L SS), laying foundation for advanced antimicrobial anticorrosion systems.

Language: Английский

Citations

0
Ternary Indium Sulfide Based 3D Hydrogels as Versatile Photocatalysts: Unraveling Peroxymonosulfate Activation for Sulfamethoxazole Degradation and H2O2 Production DOI
Hritankhi Tripathy, Akash Balakrishnan, Mahendra Chinthala

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: 63(46), P. 20125 - 20143

Published: Nov. 11, 2024

In this study, a reusable double Z-scheme In2S3/Bi2WO6/CdS (ICB) photocatalytic hydrogels were developed for efficient reclamation of sulfamethoxazole (SMX) using peroxymonosulfate (PMS) activation and H2O2 production. The ternary nanocomposites prepared the hydrothermal method formulated into via an immobilization strategy sodium alginate as base substrate. morphological, optical, structural, electrochemical characterization ICB confirmed formation heterojunction. displayed 99% (10 mg/L) degradation (Rate constant = 0.191 min –1) in 20 visible light irradiation (400 with reusability 15 cycles. Also, hydrogels/PMS/Visible system demonstrated higher mineralization efficiency (56%) ensured practicability by reclaiming real wastewater. Higher catalytic efficacy is ascribed to construction heterojunctions between In2S3, Bi2WO6, CdS, which resulted enhanced separation suppressed recombination ratio charge carriers. synergistic interaction photocatalyst PMS boosted production reactive oxygen species like SO4*–, O2*–, OH*–, electrons. Additionally, studies revealed maximum 302 μM 60 min. advantages include reusability, easiness catalyst recovery, utilization (1.34 eV), sustainability. This research provides perspectives on successful fabrication redemption noxious contaminants.

Language: Английский

Citations

0
In-situ constructing AlTiZn/CN heterojunction via memory effect for effective degradation of naphthalene under UV irradiation DOI
Jinhua Liang, Weikang Li,

Tianyi Yang

et al.

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: 193, P. 501 - 513

Published: Nov. 13, 2024

Language: Английский

Citations

0