Results 51 to 60 of about 54,154 (288)

Hydrophobic MFI‐Type Zeolites via Alkali‐Cation‐Induced Defect Healing: Implications for Adsorbent and Catalyst Design

Advanced Materials, EarlyView.
Sub‐stoichiometric amounts of Na+ or K+ enhance defect healing during Silicalite‐1 (MFI) and TS‐1 calcination by promoting Si–O–Si annealing and healing framework vacancies. The resulting defect‐free zeolites are more hydrophobic and show improved butanol/water separation and improved activity and selectivity in the epoxidation of 1‐hexene, offering a ...
Christos Kanteler, Pau Ferri, Francisco Javier Escobar‐Bedia, Álvaro Mayoral, Alejandro Vidal‐Moya, Richard Kendra, Chen Lei, Miguel Palomino, Fernando Rey, Lukáš Grajciar, Christopher James Heard, Pedro Serna, Mercedes Boronat, Cristina Martínez, Manuel Moliner   +14 more
wiley   +1 more source

Dual-waste conversion of rice husk ash and aluminum dross into FAU-type zeolite for ammonium ion exchange

Chemical Engineering Journal Advances
Ammonium removal from water is important for preventing eutrophication, and low-silica faujasite (FAU)-type zeolites are promising ion exchangers because of their high cation-exchange capacities.
Hiroki Konno, Momoka Someya
doaj   +1 more source

ACTIVATED NATURAL ZEOLITES FOR PETROLEUM HYDROCARBONS ADSORPTION

Studia Universitatis Babes-Bolyai Chemia, 2021
This study was carried out with the aim of increasing and determining the activated zeolites’ adsorption capacity by testing their efficiency on petroleum hydrocarbons.
Maria-Alexandra HOAGHIA, Ioan ASCHILEAN, Vanda BĂBĂLĂU-FUSS, Anca BECZE, Oana CADAR, Cecilia ROMAN, Marius ROMAN, Marin SENILA, Eniko KOVACS   +8 more
doaj   +1 more source

Synthesis of ‘unfeasible’ zeolites [PDF]

Nature Chemistry, 2015
Zeolites are porous aluminosilicate materials that have found applications in many different technologies. However, although simulations suggest that there are millions of possible zeolite topologies, only a little over 200 zeolite frameworks of all compositions are currently known, of which about 50 are pure silica materials.
Michal Mazur, Paul S. Wheatley, Marta Navarro, Wieslaw J. Roth, Miroslav Položij, Alvaro Mayoral, Pavla Eliášová, Petr Nachtigall, Jiří Čejka, Russell E. Morris   +9 more
openaire   +8 more sources

Polymeric Sorbents as Energy‐Efficient Alternative to Cryogenic Distillation for Light Hydrocarbon Purification

Advanced Materials, EarlyView.
The transition from cryogenic distillation to polymeric sorbents for light hydrocarbon purification is crucial for energy and environmental sustainability. The polymeric sorbents are engineered to separate gas mixtures based on their specific properties.
Kelechi Festus, Ankit Mondal, Suman Mandal, Jazmine Aiya D. Marquez, Arnab Ghosh, Aishi Sikdar, Urme Podder, Ahana Sarkar, Qingsheng Wang, Hong‐Cai Zhou   +9 more
wiley   +1 more source

Vapour-phase-transport rearrangement technique for the synthesis of new zeolites

Nature Communications, 2019
Assembly-Disassembly-Organization-Reassembly (ADOR) is a valuable method to prepare zeolites of predictable topologies, but has yet to be successfully applied on open framework zeolites.
Valeryia Kasneryk, Mariya Shamzhy, Jingtian Zhou, Qiudi Yue, Michal Mazur, Alvaro Mayoral, Zhenlin Luo, Russell E. Morris, Jiří Čejka, Maksym Opanasenko   +9 more
doaj   +1 more source

Predicting the copper adsorption capacity on different zeolites [PDF]

Journal of Mining and Metallurgy. Section A: Mining, 2017
In this paper the ability of three natural zeolites from different localities (Vranjska banja-VB, Igroš-I and Baia Mare-BM deposits) to remove copper has been investigated.
Milićević Sonja, Povrenović Dragan, Milošević Vladan, Martinović Sanja   +3 more
doaj   +1 more source

Ion-exchanged and salt hydrates-encapsulated zeolites for solar refrigeration

, 2009
Solar refrigeration is the best method of utilization of solar energy due to the in-phase relationship between the availability of the solar radiation and the refrigeration requirements.
Cindrella, L, Dyer, A
core   +1 more source

Toward Pore‐Engineered 3D‐Printed Materials for Sorption Water Harvesting, Interfacial Evaporation, and Radiative Cooling

Advanced Materials, EarlyView.
Water harvesting, radiative cooling, and interfacial solar evaporation are fundamentally governed by coupled heat, mass, and light transport processes. These processes are mediated by pore architecture, including pore size, connectivity, and hierarchical organization.
Dejan J. Trajkovski, Higgins M. Wilson, Abdallah Y. M. Ali, Jiaxing Xu, Ruzhu Wang, Primož Poredoš   +5 more
wiley   +1 more source

Influence of the Process of Synthesis of Zeolites from Volcanic Ash in Its Synergistic Action as a Flame-Retardant for Polypropylene Composites

Buildings, 2021
In this research, the influence of natural zeolites obtained from the volcanic ash of the Ubinas volcano has been studied as synergistic agents in a flame-retardant system (composed of ammonium polyphosphate, pentaerythritol, and polypropylene).
Jonathan Almirón, María Vargas, Danny Tupayachy-Quispe, Sophie Duquesne, Francine Roudet, Alejandro Silva-Vela   +5 more
doaj   +1 more source