Recovering waste solvent for reuse presents an excellent alternative to improving the greenness of industrial processes. Implementing solvent recovery practices in the chemical industry is necessary, given the increasing focus on sustainability to promote a circular economy. However, the systematic design of recovery processes is a daunting task due to the complexities associated with waste stream composition, techno-economic analysis, and environmental assessment. Furthermore, the challenges to satisfy the desired product specifications, particularly in pharmaceuticals and specialty chemical industries, may also deter solvent recovery and reuse practices. To this end, this review presents a systems-level approach including various methodologies that can be implemented to design and evaluate efficient solvent recovery pathways.
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http://dx.doi.org/10.1016/j.isci.2021.103114 | DOI Listing |
Phytochem Anal
December 2024
Department of Chemistry, Colorado State University, Fort Collins, Colorado, USA.
Introduction: Phenolic compounds garner interest in developing medicines, nutraceuticals, and cosmeceuticals based on natural products. The quantity of phenolic compounds in a sample is commonly determined via spectrophotometry; however, this instrumented technique is relatively laborious and time consuming and requires a large amount of reagents.
Objective: This work aimed to develop a simple, point-of-need colorimetric sensor to rapidly determine total phenolic content (TPC) in tea extracts.
Luminescence
December 2024
Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, China.
MgO surface makes it easy to introduce a certain amount of oxygen vacancy and can enhance catalytic reaction activity. Besides, as a silicoaluminate mineral material, halloysite nanotube (HNT) has a unique tubular structure. In this paper, the HNTs@MgO composite was successfully synthesized based on natural clay material HNTs as a carrier, and the CTL sensor based on HNTs@MgO was successfully developed for the rapid determination of ether in air.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center, Jieyang 515200, PR China; Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, School of Chemical Engineering and Light Industry, Guangdong University of Technology, Waihuan Xi Road 100, Guangzhou, Guangdong 510006, PR China.
Lignin, a renewable and biodegradable polymer, offers a promising alternative to petroleum-based polyols for polyurethane elastomer synthesis. However, its complex structure poses challenges, such as poor dispersibility and reactivity. This study introduces a novel one-step and solvent-free method for synthesizing lignin-containing polyurethane elastomers (SF-LPUes-ONE) with a high lignin substitution rate of at least 30 wt%.
View Article and Find Full Text PDFJ Chromatogr A
December 2024
Food and Drug Safety Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Research Center of New Material and Green Chemistry, Khazar University, 41 Mehseti Street, Baku AZ1096, Azerbaijan; Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
This paper introduces an innovative technique for extracting pesticides from herbal infusions using a core-shell magnetic adsorbent (i.e., Cu-BTC@FeO) where achieving a notable enrichment factor for the target pesticides by coupling with a dispersive liquid-liquid microextraction method.
View Article and Find Full Text PDFJ Chromatogr A
December 2024
College of Environmental Science and Engineering, Ocean University of China, Qingdao 266000, China; Laoshan Laboratory, Qingdao 266234, China; Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao 266100, China. Electronic address:
The concentration of chlorpyrifos (CPF) in aqueous samples was determined using a novel molecularly imprinted dispersive solid-phase extraction (MISPE) approach that was presented in this research. Using a non-covalent molecular imprinting technique, a biochar (BC)-functionalized molecularly imprinted polymers (MIPs) (BC-MIPs) was created. These MIPs were used in dispersive solid-phase extraction (DSPE) in conjunction with high-performance liquid chromatography with photodiode array detection (HPLC-PDA) to detect CPF in aqueous samples with high sensitivity.
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