Results 21 to 30 of about 23,708 (261)

Preparation of Alumina-Sphere-Supported Potassium Chabazite Zeolite Membrane with Excellent Potassium Extraction Performance at Room Temperature

Membranes, 2022
In this paper, a potassium chabazite (KCHA) zeolite membrane was prepared by coating KCHA zeolite on the surface of a porous alumina sphere. The performance of the KCHA zeolite membrane in extracting potassium from seawater and sea bittern at room ...
Jie Ouyang, Heng Wei, Jin Hou
doaj   +1 more source

Efficient Removal of Volatile Organic Compounds by FAU-Type Zeolite Coatings

Molecules, 2020
Silicone and pure organic binders were used to develop FAU-type zeolite coatings applied on pre-treated aluminum substrates by using a spraying method and then cured under specific conditions.
Mathieu Diboune, Habiba Nouali, Michel Soulard, Joël Patarin, Guillaume Rioland, Delphine Faye, T. Jean Daou   +6 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

Aktivasi Zeolit Alam Asal Bayah dengan Asam dan Basa sebagai Aditif Campuran Beraspal Hangat (Warm Mixed Asphalt)

Jurnal Teknik Sipil, 2018
Abstrak Warm Mix Asphalt (WMA) adalah campuran beraspal yang diproduksi pada suhu 20-40°C lebih rendah dari HMA. Zeolit merupakan salah satu bahan tambah WMA dengan memanfaatkan kemampuan zeolite membawa air dan melepaskannya pada suhu tinggi sehingga ...
Leo Sentosa, Bambang Sugeng Subagio, Harmein Rahman, R Anwar Yamin   +3 more
doaj   +3 more sources

Preparation and Modification of Silicalite-2 Membranes

Membranes
Silicalite-2 membranes were successfully prepared on tubular α-Al2O3 supports by secondary hydrothermal synthesis, and the pervaporation performance of the membrane was evaluated by separation of a 5 wt% ethanol/H2O mixture at 60 °C.
Yin Yang, Juan Liu, Qi Zhou, Siqi Shao, Lingling Zou, Wenjun Yuan, Meihua Zhu, Xiangshu Chen, Hidetoshi Kita   +8 more
doaj   +1 more source

Potassium Recovery from Potassium Solution and Seawater Using Different Adsorbents

Applied Sciences, 2021
The potassium (K) sorption characteristics with three adsorbents, natural zeolite, ammonium acetate-treated zeolite, and manganese nodule, were studied and compared to see the potential use of manganese nodule as an alternative K adsorbent.
Sora Shin, Eun Hea Jho, HyunJu Park, Sungjong Lee, Joon Ha Kim   +4 more
doaj   +1 more source

Reproducible scale-up of high-selectivity 80-cm-long NaA zeolite membranes via green gel-less conversion method for dehydration of ethanol

Materials & Design
Green scale-up of zeolite membranes is of profound significance from environmental protection perspectives. In this work, 80-cm-long NaA zeolite membranes with high selectivity and reproducibility were successfully manufactured on coarse macroporous ...
Tian Gui, Xiaowei Wu, Yuqin Li, Jianggui Tan, Xiaoyan Wang, Fei Zhang, Xiangshu Chen, Hidetoshi Kita   +7 more
doaj   +1 more source

Zeolite Used for Optimized Removal of Radioactive Cobalt with Response Surface Methodology

Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 2021
Radioactive cobalt is one of the most abundant radionuclides in radioactive waste. This study investigated the removal of radioactive cobalt (60Co) by adsorption with zeolite 3A and 5A from aqua solution.
Ekrem Çiçek
doaj   +1 more source

PHOTODEGRADATION OF ALIZARIN S DYE USING TiO₂-ZEOLITE AND UV RADIATION

Indonesian Journal of Chemistry, 2010
An investigation of Alizarin S photodegradation using TiO2-zeolite and UV radiation was performed. TiO2-zeolite was prepared by dispersing oligocations of titanium into suspension of zeolite.
Karna Wijaya, Eko Sugiharto, Is Fatimah, Iqmal Tahir, Rudatiningsih Rudatiningsih   +4 more
doaj   +1 more source

Mechanistic Control of C─H Bond Activation and C─C Coupling in Light‐Driven Methane Conversion to C2+ Products over Multifunctional Photocatalysts

Advanced Functional Materials, EarlyView.
Methane photocatalytic activation under mild conditions remains a formidable challenge in the synthesis of solar fuels. In this review, we emphasize the growing importance of multifunctional materials and hybrid systems within a unified mechanistic framework that integrates selective C─H bond activation, formation and control of intermediates, C─C ...
Di Hu, Yuheng Jiang, Vitaly V. Ordomsky, Bastian Mei, Zhiyong Tang, Andrei Y. Khodakov   +5 more
wiley   +1 more source