Catalytic Upcycling of Waste Pvc to High-Value Sorbent with Koh Activation for Efficient Removal of Detrimental Dyes DOI

changwoo nam,

Youngwoo Kwak,

Hyeongoo Kim

et al.

Published: Jan. 1, 2023

Polyvinyl chloride (PVC), known for its chemical stability and flame-retardant qualities, has many uses in various fields, such as pipes, electric wires, cable insulation. Research established potential recovery a fluidic fuel through pyrolysis, but the use of PVC pyrolysis oil, which is tainted by chlorine, constrained low heat value harmful environmental effects. This study engineered layered double hydroxide (LDH) to tackle these challenges. The LDH facilitated dechlorination during bolstered thermal via cross-linking. During with LDH, was transformed into carbon-rich precursors sorbents. Chemical activation residues using KOH created sorbents specific surface area 1495.4 m² g⁻¹, rendering them hydrophilic. These resulting displayed impressive adsorption capabilities, removing up 486.79 mg g⁻¹ methylene blue exhibiting selectivity cations.

Language: Английский

Alkyl Chain Length Dependent Luminescence and Single‐Component White‐Light Emission from Gemini Aliphatic Quaternary Ammonium Salts DOI
Anze Li,

Saixing Tang,

Zihao Zhao

et al.

Advanced Optical Materials, Journal Year: 2024, Volume and Issue: 12(19)

Published: March 14, 2024

Abstract Aliphatic quaternary ammonium salts (QASs) with intrinsic photoluminescence (PL) have drawn increasing attention due to the importance of exploring mechanism ionic emissive clusters, whereas it remains challenging clarify structure–property relationships. Here, effective modulation photophysical properties gemini aliphatic QASs ( n ‐BTADB) is managed by altering alkyl chain length. Boosted quantum yields (up 24.6%), prolonged phosphorescence lifetimes 515.2 ms), and varied PL colors are achieved manipulating aggregation states compounds. Interlaced herringbone packing patterns strong interactions facilitate intersystem crossing process stabilize triplets. The confluence hydrophobic flexibility results in fluctuation as lengthens. Furthermore, single‐component white‐light emission obtained 12‐HBTADB crystals introducing electron‐rich hydroxyls. These shed new light on relationships clusters rational design nonconventional luminophores.

Language: Английский

Citations

4
A new fluorescence probe for sofosbuvir analysis in dosage form and spiked human plasma DOI

Mohamed S. Nasr,

Wael Talaat,

Samir Morshedy

et al.

Luminescence, Journal Year: 2024, Volume and Issue: 39(4)

Published: April 1, 2024

Abstract A simple, rapid, and low‐cost technique was developed to allow reliable analysis of the anti‐hepatitis C drug sofosbuvir in bulk, tablet form, spiked human plasma. This method depends on ability quench fluorescence newly synthesized 2‐amino‐3‐cyano‐4,6‐dimethylpyridine (reagent 3 ). Elemental spectral data were used validate structure reagent. The reagent exhibited a satisfactory level emission at 365 nm after excitation 247 nm. All experimental variables that might affect quenching process analyzed optimized. Linearity, range, accuracy, precision, limit detection (LOD), quantitation (LOQ) all validated accordance with International Council for Harmonization Technical Requirements Pharmaceuticals Human Use (ICH) guidelines. concentration range shown be linear between 0.1 1.5 μg/mL. effectively utilized both its dosage form plasma, mean percentage recoveries 100.13 ± 0.35 94.26 1.69, respectively.

Language: Английский

Citations

4
Upcycling of PVC waste to high-value sorbent with KOH-activation for efficient removal of organic dyes DOI
Youngwoo Kwak,

Junhyeok Eom,

Hyungseok Nam

et al.

Chemosphere, Journal Year: 2024, Volume and Issue: 359, P. 142283 - 142283

Published: May 9, 2024

Language: Английский

Citations

2
Unconventional Fluorescent and Multi-responsive Polyethyleneimine with LCST and UCST Behavior: Synthesis, Characterization and Biological Applications DOI

Feng-Ming Yin,

Lili Wu, Shusheng Li

et al.

Chinese Journal of Polymer Science, Journal Year: 2024, Volume and Issue: 42(6), P. 826 - 837

Published: April 15, 2024

Language: Английский

Citations

1
Unconventional Fluorescent and Multi-responsive Polysiloxane: Synthesis, Characterization and Biological Applications DOI
Xiaodi Li, Shusheng Li, Xubao Jiang

et al.

Chinese Journal of Polymer Science, Journal Year: 2024, Volume and Issue: 42(5), P. 579 - 590

Published: Feb. 23, 2024

Language: Английский

Citations

1
Phase Transition and Fluorescence Emission of Multiresponsive Poly(ethylene glycol-co-siloxane) and Its Application for Uric Acid Detection DOI
Lingyi Li, Shusheng Li, Hongyan Cui

et al.

ACS Applied Polymer Materials, Journal Year: 2023, Volume and Issue: 5(11), P. 9413 - 9424

Published: Oct. 12, 2023

In recent years, multiresponsive polymers with nonconjugated chromophores featuring cluster-triggered emission (CTE) have attracted significant attention due to their wide applications and interests in fundamental studies. There is a lack of studies correlating the fluorescent properties distinct stimuli-responsiveness although CTE materials been well studied. Herein, we introduced poly(ethylene glycol)-polysiloxane copolymer, PEG-Si, which exhibits responsiveness temperature, pH, CO2, salinity, adjustable phase transition reversible fluorescence. PEG-Si was synthesized by catalyst-free aza-Michael addition PEG diacrylate bis(3-aminopropyl)-tetramethyldisiloxane dichloromethane. The structure characterized using various spectroscopic methods such as NMR Fourier transform infrared spectroscopy (FTIR). light transmittance fluorescence performance were measured at different temperatures under varying conditions, including polymer composition, concentration, bubbled observe evolution. relationship between process described. results demonstrate that can be used temperature pH thermometer biosensor for detection uric acid limit 1.02 μmol/L. This study proposes practical strategy designing features provides insights into correlation properties, contributes development advanced diverse applications.

Language: Английский

Citations

3
Synthesis, characterization, fluorescent emission of sodium poly(ethylene glycol) and its uses in sensing, cell imaging and data encryptions DOI
Xubao Jiang,

Siqiang Yan,

Xiang Zheng Kong

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 478, P. 147449 - 147449

Published: Nov. 18, 2023

Language: Английский

Citations

3
Catalytic Upcycling of Waste Pvc to High-Value Sorbent with Koh Activation for Efficient Removal of Detrimental Dyes DOI

changwoo nam,

Youngwoo Kwak,

Hyeongoo Kim

et al.

Published: Jan. 1, 2023

Polyvinyl chloride (PVC), known for its chemical stability and flame-retardant qualities, has many uses in various fields, such as pipes, electric wires, cable insulation. Research established potential recovery a fluidic fuel through pyrolysis, but the use of PVC pyrolysis oil, which is tainted by chlorine, constrained low heat value harmful environmental effects. This study engineered layered double hydroxide (LDH) to tackle these challenges. The LDH facilitated dechlorination during bolstered thermal via cross-linking. During with LDH, was transformed into carbon-rich precursors sorbents. Chemical activation residues using KOH created sorbents specific surface area 1495.4 m² g⁻¹, rendering them hydrophilic. These resulting displayed impressive adsorption capabilities, removing up 486.79 mg g⁻¹ methylene blue exhibiting selectivity cations.

Language: Английский

Citations

0