Results 101 to 110 of about 26,556 (257)

SYNTHESIS OF POROUS CARBON MATERIAL PROPYLENE MEDICAL MASK AS ADSORBENT HEAVY METAL IRON (Fe) IN WATER EX-TIN MINING BANGKA BELITUNG

Jurnal Kimia Riset
Bangka Belitung Islands Province faces severe environmental challenges, exacerbated by illegal tin mining activities leading to heightened pollution levels, particularly in stagnant water within former tin mining holes, reaching depths of up to 40 meters.
Addela Amelia, Faizah Alivia Putri, Widia, Della Adelia, Alkasiyah, Verry Andre Fabiani   +5 more
doaj   +1 more source

A biosynthetic pathway for the selective sulfonation of steroidal metabolites by human gut bacteria

Nature Microbiology, 2022
Lina Yao, G. D’Agostino, Jinseok Park, Saiyu Hang, Arijit A. Adhikari, Yancong Zhang, W. Li, J. Ávila-Pacheco, Sena Bae, C. Clish, E. Franzosa, C. Huttenhower, Jun R. Huh, A. Devlin   +13 more
semanticscholar   +1 more source

Ion‐Regulating SPEEK–BNNS Hybrid Interfaces Enabling Low‐Barrier Zn‐Ion Transport and Dendrite‐Free Zinc Anodes

Small, EarlyView.
A scalable organic–inorganic hybrid protective layer composed of sulfonated poly(ether ether ketone) and boron nitride nanosheets is introduced to stabilize Zn‐metal anodes. The hybrid architecture regulates Zn2+ transport, suppresses dendrite growth, and mitigates parasitic reactions, enabling uniform Zn deposition and long‐term stable cycling in ...
Minseo Kim, Hyunki Kim, Seojin Woo, Ingyu Choi, Seulgi Kim, Han Seul Kim, Dongju Lee   +6 more
wiley   +1 more source

Cross-linker effect in ETFE-based radiation-grafted proton-conducting membranes II. Extended fuel cell operation and degradation analysis [PDF]

, 2008
In this study the effect of crosslinker (divinylbenzene (DVB)) content on the chemical stability of poly(ethylene-alt-tetrafluoroethylene) (ETFE) based membranes using an H2O2 solution was carried out.
Alkan Gursel, Selmiye, Alkan Gürsel, Selmiye, Ben Youcef, Hicham, Gubler, Lorenz, Sawada, Shinichi, Scherer, Gunther G., Scherer, Günther G., Wokaun, Alexander, Yamaki, Tetsuya   +8 more
core   +2 more sources

Key role of mild sulfonation of pine sawdust in the production of lignin containing microfibrillated cellulose by ultrafine wet grinding

Industrial crops and products (Print), 2019
Cheaper methods and raw materials are currently being sought for the production of microfibrillated cellulose. Presently microfibrils with high lignin content have attracted increasing interest.
A. Ämmälä, O. Laitinen, J. Sirviö, H. Liimatainen   +3 more
semanticscholar   +1 more source

Sulfonated, Disulfide‐Bridged Polymer Networks for Atmospheric Water Harvesting

Small, EarlyView.
Atmospheric water harvesting is a promising solution to the water crisis. Here, disulfide‐containing hyper‐crosslinked‐style polymers are prepared by combined Friedel–Crafts alkylation and thiol self‐condensation. Exhibiting exceptional uptake capacities, the polymers demonstrate dynamic bonding behavior.
Joseph J. Dale, Paul Schweng, Mathilde Gerbaud, Robert T. Woodward   +3 more
wiley   +1 more source

Towards Photothermal Acid Catalysts Using Eco-Sustainable Sulfonated Carbon Nanoparticles—Part II: Thermal and Photothermal Catalysis of Biodiesel Synthesis

C
The main goal of this work is to evaluate the ability of sulfonated carbon nanoparticles (SCNs) to induce photothermal catalysis of the biodiesel synthesis reaction (transesterification of natural triglycerides (TGs) with alcohols). Carbon nanoparticles (
María Paula Militello, Luciano Tamborini, Diego F. Acevedo, Cesar A. Barbero   +3 more
doaj   +1 more source

Phase inversion of ionomer-stabilized emulsions to form high internal phase emulsions (HIPEs)

, 2015
Herein, we report the phase inversion of ionomer-stabilized emulsions to form high internal phase emulsions (HIPEs) induced by salt concentration and pH changes. The ionomers are sulfonated polystyrenes (SPSs) with different sulfonation degrees.
Cai, Zengxiao, Guo, Qipeng, Xu, Zhinguang, Zhang, Tao   +3 more
core   +1 more source

A covalent organic/inorganic hybrid proton exchange polymeric membrane: synthesis and characterization [PDF]

, 2005
Commercial polyetheretherketone (Victrex PEEK) was sulfonated up to 90% degree of sulfonation (DS), then reacted with SiCl4 to obtain a hybrid polymer. The product was characterized by 29-Si NMR and ATR/FTIR spectroscopies demonstrating the formation of
D'Epifanio, A, Di Vona, ML, Licoccia, S, Marani, D, Traversa, E, Trombetta, M   +5 more
core   +1 more source

Recent Advances and Perspectives in UL‐94 V‐0 Rated Flame‐Retardant Polycarbonate: Addressing Challenges Under Per‐ and Polyfluoroalkyl Substances Bans

Safety Science and Technology, EarlyView.
Based on the challenges and motivations of global PFAS bans, this review highlights recent advances in strategies achieving UL‐94 V‐0 flame retardancy in polycarbonate while maintaining critical comprehensive performances, offering perspectives for future R&D. ABSTRACT This review focuses on the recent advancements in the development of UL‐94 V‐0 rated
Ting Sai, Xiaodi Ye, Bingtao Wang, Juan Li, Xin Zhang, Zhenghong Guo, Siqi Huo, Pingan Song, Zhengping Fang   +8 more
wiley   +1 more source