Polyvinyl Pyrrolidone-Chitosan Blend Membrane for Pervaporation Separation of Trimethyl Borate-Methanol Mixture DOI Creative Commons
Mehtap Ozekmekci, Mehmet Çopur, Derya Ünlü

и другие.

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Апрель 29, 2024

Abstract Trimethyl borate (TMB) is crucial for applications ranging from organic synthesis to borohydride production, requiring efficient separation methanol optimal use. This study examines the effectiveness of pervaporation using blend membranes composed chitosan (CS) and polyvinyl pyrrolidone (PVP) in various ratios order enhance TMB/methanol mixtures. Comprehensive characterizations these membranes, addressing aspects like structural morphology, thermal crystalline nature were carried out techniques such as Fourier transform infrared spectroscopy (FTIR), Thermogravimetric analysis (TGA), contact angle measurements, Scanning electron microscopy (SEM) X-ray Diffraction Analysis (XRD). Pervaporation experiment conducted varying feed compositions, operational temperatures PVP ratios. Evaluations revealed a noticeable improvement permeation flux with increased content. Two different blended subjected cross-linking procedures carefully evaluate its influence on their performance. The crosslinked PVP-CS-1 membrane showed good performance, achieving 146.37 selectivity. performance was achieved an utilizing PVP-CS-2 at 45°C, employing mixture 75 wt% TMB-25 methanol, resulting recorded value 335.44 g/m2h. Furthermore, exhibited excellent stability during 5 run experiment, showcasing robust mechanical chemical stability.

Язык: Английский

Halloysite clay nanotubes: Innovative applications by smart systems DOI Creative Commons
Mohammad Fahimizadeh, Li Wen Wong,

Zhang Baifa

и другие.

Applied Clay Science, Год журнала: 2024, Номер 251, С. 107319 - 107319

Опубликована: Март 1, 2024

Halloysite clay nanotubes (HNTs) are unique porous aluminosilicates that have assumed the role of a multiplex, adaptable, low-cost, and sustainably sourced nanocomposite across vast array applications. HNTs presented diverse opportunities to researchers from different fields, leading substantial advances in applications innovative uses HNT as multifaceted smart system designs. This review focuses on intelligent systems wholly realized potential discusses important structural, chemical, physical properties concerning core element complex systems. highlights key challenges HNT-based nanocomposites address provides prospects for HNTs. found materials take advantage structure, composition, morphology simultaneously, achieving application-specific results due passive active impact other elements surrounding environment. Pioneering efforts stemming assortment performance-enhancing options can offer revived application sustainable materials, which conventionally suffered low stability, retention, effectiveness, poor mechanical performance, or overall material incompatibility. Furthermore, dynamic behavior rising structural stability these natural various chemical conditions has permitted design based operative contributions application-oriented performance under fluctuating settings. highlighted how poised be component next-generation sectors vital development, ranging biotechnology energy storage.

Язык: Английский

Процитировано

32
Halloysite nanotubes in biomedical applications: Recent approaches and future trends DOI
Seyyed Behnam Abdollahi Boraei,

Fatemeh Eshghabadi,

Roghayeh Hosseinpour

и другие.

Applied Clay Science, Год журнала: 2024, Номер 253, С. 107346 - 107346

Опубликована: Март 28, 2024

Язык: Английский

Процитировано

17
Microstructure and properties of halloysite nanotubes and modification methods: A comprehensive review DOI
Liangjie Fu,

Dikang Fan,

Jie Zhang

и другие.

Applied Clay Science, Год журнала: 2024, Номер 253, С. 107348 - 107348

Опубликована: Апрель 12, 2024

Язык: Английский

Процитировано

16
Progress in design of halloysite nanotubes-polymer nanocomposite membranes and their applications DOI Creative Commons

Lijuan Qin,

Guanying Dong,

Yi Nie

и другие.

Advanced Membranes, Год журнала: 2024, Номер 4, С. 100091 - 100091

Опубликована: Янв. 1, 2024

Driven by the diverse functionalization of halloysite nanotubes (HNTs) and advanced membrane preparation technologies, a tremendous progress in HNTs-polymer nanocomposite membranes has been made during last dozen years. Yet even with these achievements, an elaborate comprehensive overview on rational design membranes, their various application areas as well corresponding performance status is still missing. Herein, we provide timeline ongoing research then outline on: (1) versatile methods HNTs for state-of-the-art membranes. (2) key routes to prepare influences modified structures performances. (3) overall inductive performances specific applications water treatment, gas energy conversion, biomedicine. We envision that insightful perspective will be timely presented this review stimulate innovation developing more motivating extending applications.

Язык: Английский

Процитировано

8
Exploring Green Solvents for the Sustainable Fabrication of Bio-based Polylactic Acid Membranes using Nonsolvent-Induced Phase Separation DOI Creative Commons
Tunmise Ayode Otitoju, Chang-Hun Kim,

M.S. Ryu

и другие.

Journal of Cleaner Production, Год журнала: 2024, Номер 467, С. 142905 - 142905

Опубликована: Июнь 14, 2024

Язык: Английский

Процитировано

4
Development and Characterization of Silicotungstic Acid-loaded Sodium Polymeric Composite Membranes for Pervaporation Applications DOI Open Access
Ujwala Guntakanti, Sreekanth Reddy Obireddy,

Jithendra Thammineni

и другие.

Asian Journal of Chemistry, Год журнала: 2025, Номер 37(4), С. 865 - 872

Опубликована: Март 29, 2025

Efforts have been focused on the membrane synthesis, specifically enhancing properties through incorporation of zeolites into a polymer matrix. This study emphasizes development sodium carboxymethyl cellulose (NaCMC)/poly(vinylpyrrolidone-co-vinyl acetate) [P(Vp-co-VAc)] matrix composite membranes via solution casting method, incorporating varying amounts silicotungstic acid (STA) (5, 10, and 15 wt.%) for pervaporation dehydration water-isopropanol mixture. The developed films were characterized by FTIR, DSC, TGA, XRD SEM techniques. Among all STA-loaded membranes, optimum performance was observed in MSTA15 membrane, which had flux equal to 0.533 kg/m2 h at 35 ºC separation factor 118.52 40 wt.% feed composition. exhibits good hydrophilic nature molecular sieve effect. Furthermore, showed improved compared pristine membranes. These results this suggested that act as prominent materials effective isopropanol.

Язык: Английский

Процитировано

0
Polyvinyl pyrrolidone-chitosan blend membrane for pervaporation separation of trimethyl boratemethanol mixture DOI
Mehtap Ozekmekci, Mehmet Çopur, Derya Ünlü

и другие.

Iranian Polymer Journal, Год журнала: 2025, Номер unknown

Опубликована: Апрель 16, 2025

Язык: Английский

Процитировано

0
Active packaging films based on poly(butylene succinate) films reinforced with alkaline halloysite nanotubes: Production, properties, and fruit packaging applications DOI
Bedriye Üçpinar Durmaz, Filiz Uğur Nigiz, Ayşe Aytaç

и другие.

Applied Clay Science, Год журнала: 2024, Номер 259, С. 107517 - 107517

Опубликована: Июль 31, 2024

Язык: Английский

Процитировано

3
Pervaporative desalination using MIL 140 A loaded polylactic acid nanocomposite membrane DOI Open Access
Filiz Uğur Nigiz,

Betül Karakoca

Process Safety and Environmental Protection, Год журнала: 2022, Номер 169, С. 447 - 457

Опубликована: Ноя. 11, 2022

Язык: Английский

Процитировано

10
Optimization of Pervaporative Desalination with Zirconia Based Metal Organic Framework Filled Nanocomposite Membrane DOI
Tuba Ünügül, Filiz Uğur Nigiz,

Betül Karakoca

и другие.

Journal of Polymers and the Environment, Год журнала: 2023, Номер 31(10), С. 4288 - 4301

Опубликована: Май 10, 2023

Язык: Английский

Процитировано

2