Results 71 to 80 of about 4,557,674 (294)

Production and Characterization of Zeolite Membrane [PDF]

, 2012
The use of bioethanol as an alternative fuel with a purity of more than 99.5% wt has prompted research on bioethanol purification. One of the promising methods used for bioethanol purification is pervaporation membrane.
Heny , Kusumayanti, Titik , Istirokhatun, Lulluil , Mahsunnah, Ariestya , Meta Devi, Heru , Susanto, Aprilina, Purbasari   +5 more
core   +1 more source

Atmospheric Water Harvesting Through Polymer Hydrogel Sorbents: Materials Chemistry, Design Strategies, and Applications

Advanced Science, EarlyView.
Polymer‐based hydrogels have emerged as promising materials for atmospheric water harvesting (AWH) due to their high water affinity, tunable network structure, and excellent moisture adsorption‐desorption performance. Functional hydrogel systems enable efficient water capture and controlled release under low‐energy conditions, offering a sustainable ...
Swagata Datta, Sushmit Sen, Nilanjan Dey, Amrita Chatterjee, Ananya Sadhu, Sudipta Sarkar, Pradip K. Maji   +6 more
wiley   +1 more source

Ion-exchange Capability for Ammonium Removal using Zeolite Modified by Potassium Permanganate

Chemical Engineering Transactions, 2016
In this study, the ability to remove ammonium aqueous solutions of the natural zeolite particles produced in Jinzhou, Liaoning and the zeolite particles modified by potassium permanganate were characterized by using the static adsorption experiments. The
H. Guo, X.Y. Zhang, J.L. Liu
doaj   +1 more source

Interface‐Enhanced Electrochemical Epoxidation Over a Core‐Shell Nanozeolite TS‐1@Mn‐N‐C Catalyst

Advanced Science, EarlyView.
Core–shell interface of TS‐1@Mn‐N‐C enables in situ generation of high‐concentration H2O2 and its spatially confined activation toward epoxidation‐active η‐Ti‐OOH species, leading to highly efficient and continuous electrochemical epoxidation. The work successfully addresses the key challenge of inefficient mass transfer and slow kinetics caused by ...
Wenbiao Zhang, Guanqiao Zhang, Wanling Zhang, Kun Yu, Di Pan, Zhuxin Gui, Yi Tang, Qingsheng Gao   +7 more
wiley   +1 more source

Pengaruh Variasi Garam Ammonium Terhadap Keasaman Zeolit Alam Pada Reaksi Perengkahan Minyak Jelantah

Indonesian Journal of Chemical Research, 2017
Natural zeolite modification with the addition of ammonium salt variations was conducted. The modification was conducted by demineralization method, dealumination and followed by activation of ammonium salt. The types of activators were ammonium chloride,
Verry A. Fabiani, Imelda H. Silalahi, Endah Sayekti   +2 more
doaj   +1 more source

Utilization of Natural Zeolites as Cu (Ii) and Zn (Ii) Adsorbent [PDF]

Journal of Tropical Soils, 2016
This research was aimed to determine the differences of physical and chemical characteristics from three natural zeolites from Tasikmalaya, Bayah and Lampung areas and to examine the characteristics of the natural zeolite adsorption capability to the ...
Evi Mutiara Dewi, Suwardi, Dyah Tjahyandari Suryaningtyas, Syaiful Anwar   +3 more
doaj   +1 more source

Transforming Gas Separations with Scalable Carbon Molecular Sieve Membranes Enabled by Chemically Tuned Hollow‐Fiber Precursors

Advanced Science, EarlyView.
We established a broadly tunable network‐polymer platform for polyimide‐based precursor membranes, extendable to various diamines. Ultrahigh selectivity with demonstrated aging resistance, and scalability via hollow fiber CMS engineering collectively establishes broad and lasting impact for the membrane science and engineering communities.
Yuhe Cao, Zhongyun Liu, Zahra Shomali, Jinyoung Kim, Steven Schlosser, Ryan P. Lively, William J. Koros   +6 more
wiley   +1 more source

Ammonia Adsorption Process using Sarulla Natural Zeolite from North Sumatera, Indonesia [PDF]

E3S Web of Conferences
Sarulla natural zeolite has potential as an adsorbent for removing ammonia from wastewater. The adsorption capacity of Sarulla natural zeolite as an adsorbent is influenced by the pre-treatment process.
Husin Amir, Hotmauli Aruan Friday, Huda Adri, Herlina Netti, Patumona Manalu Sarah   +4 more
doaj   +1 more source

Mechanism of the adsorption of ammonium ions from aqueous solution by a Chinese natural zeolite [PDF]

, 2009
[[abstract]]The adsorption of ammonium ions onto a Chinese natural zeolite in an agitated batch adsorber was studied. A trial-and-error non-linear method was developed to examine two widely used isotherms, the Langmuir and Freundlich.
Wen, D.;Ho, Y.S.;Xie, S.;Tang, X.
core  

Dual‐Functional Membranes With Interfacial MXene/PFSA Nanoarchitectures for Low Hydrogen Permeation in Water Electrolysis and Reduced Vanadium Ion Crossover in Flow Batteries

Advanced Science, EarlyView.
A PFSA/MXene composite membrane is developed for both PEMWE and VRFB applications. MXene incorporation simultaneously enhances proton conductivity and suppresses hydrogen/vanadium crossover. The interaction between MXene functional groups and PFSA's –SO3H reduces the proton diffusion barrier via hydrogen‐bonding networks, while the disordered ...
Panpan Guan, Mingjia Jiang, Yunhu Jiang, Wei Li, Yecheng Zou, Lixiao Zhang, Kaifeng Long, Ziqi Sun, Ting Liao, Hua Kun Liu, Ding Yuan, Dingsheng Wang, Shi Xue Dou, Yuhai Dou   +13 more
wiley   +1 more source