Results 21 to 30 of about 890,100 (287)

Chemical Hydrogen Generation by Hierarchically Structured Quasi-ZIF-67 Catalysts with Unsaturated Metal Centers

open access: yes, 2023
Preparing quasi-metal–organic frameworks (Q-MOFs) with unsaturated metal sites is an effective approach for developing highly active MOF-based catalysts.
Mohammad Yaser Masoomi (1468906)   +2 more
core   +1 more source

Synthesis of ZIF-67- Effect of solvent on the structure

open access: yesVietnam Journal of Catalysis and Adsorption, 2021
In the present paper, ZIF-67 material was synthesized from cobalt (II) nitrate hexahydrate and 2-methyl imidazole in three different solvents (methanol, ethanol and acetone) at room temperature. The obtained samples were characterized using XRD, SEM, FTIR, TGA and nitrogen adsorption/desorption measurements. The results show that the synthesized ZIF-67
null Tuong Kieu Lien   +3 more
openaire   +2 more sources

ZIF-67/BiOCl ZScheme Heterojunction Photocatalyst for Photodegradation of Organic Dyes and Antibiotics

open access: yes, 2023
Z-scheme heterojunction photocatalysts with excellent redox capability show great potential in the field of environmental remediation. In this research, ZIF-67 and BiOCl were used to construct metal–organic framework (MOF)-based heterostructures, which ...
Weinan Xing (2878562)   +17 more
core   +1 more source

Synthesis and Characterization of GO/ZIF-67 Nanocomposite: Investigation of Catalytic Activity for the Determination of Epinine in the Presence of Dobutamine

open access: yesMicromachines, 2022
In this study, we prepared graphene oxide (GO)/ZIF-67 nanocomposites. Therefore, GO/ZIF-67 nanocomposites were used as a modifier on a screen-printed electrode (GO/ZIF-67/SPE) for studying the electrochemical behavior of epinine in phosphate buffer ...
Mahboobeh Shahsavari   +4 more
doaj   +1 more source

SỬ DỤNG ĐIỆN CỰC THAN THỦY TINH BIẾN TÍNH VỚI ZIF-67/rGO ĐỂ XÁC ĐỊNH RHODAMINE-B BẰNG PHƯƠNG PHÁP VON-AMPE XUNG VI PHÂN

open access: yesTạp chí Khoa học Đại học Huế: Khoa học Tự nhiên, 2021
Bài báo này trình bày QT quá trình tổng hợp vật liệu khung zeolite imidazolate kim loại ZIF-67/graphen oxit dạng khử (ZIF-67/rGO). Vật liệu này là các hạt nano ZIF-67 phân tán đều trên tấm rGO và có diện tích bề mặt riêng lớn (498 m2·g).
Huynh Truong Ngo   +2 more
doaj   +1 more source

Application of ZIF-67 as a crosslinker to prepare sulfonated polysulfone mixed-matrix membranes for enhanced water permeability and separation properties

open access: yesWater Science and Technology, 2021
High-performance sulfonated polysulfone (SPSf) mixed-matrix membranes (MMMs) were fabricated via a nonsolvent-induced phase separation (NIPS) method using zeolitic imidazolate frameworks-67 (ZIF-67) as a crosslinker.
Jiulong Yin   +4 more
doaj   +1 more source

ZIF-67 Incorporated Sulfonated Poly (Aryl Ether Sulfone) Mixed Matrix Membranes for Pervaporation Separation of Methanol/Methyl Tert-Butyl Ether Mixture

open access: yesMembranes, 2023
Mixed matrix membranes (MMMs) with nano-fillers dispersed in polymer matrix have been proposed as alternative pervaporation membrane materials. They possess both promising selectivity benefiting from the fillers and economical processing capabilities of ...
Guanglu Han, Jie Lv, Mohan Chen
doaj   +1 more source

GRAPHITE PASTE ELECTRODE MODIFIED WITH ZEOLITIC IMIDAZOLATE FRAMEWORK (ZIF-67) FOR THE DETERMINATION OF ACETAMINOPHEN

open access: yesStudia Universitatis Babes-Bolyai Chemia, 2023
A zeolitic imidazolate framework ZIF-67 was synthesized by an eco-friendly solvothermal method, using ethanol as solvent at room temperature. The morphology and structure of obtained ZIF-67 were characterized by X-ray diffraction, scanning electron ...
Thi Thanh Hien NGO   +5 more
doaj   +1 more source

碳化ZIF-67催化过硫酸盐降解水中的甲基橙

open access: yesGongye shui chuli, 2023
通过溶剂热法制备了ZIF-67,并碳化生成ZIF-67(C)。利用红外光谱、BET比表面积测试、Zeta电位、X射线衍射和X射线光电子能谱等对ZIF-67(C)进行表征。以甲基橙(MO)降解实验验证了ZIF-67(C)对过一硫酸氢钾(PMS)的催化作用,鉴定了反应中的主要活性物种是硫酸根自由基(SO4·-),讨论了金属与有机配体物质的量之比、溶剂种类和煅烧温度(T)以及MO初始浓度、反应初始pH、ZIF-67(C))投加量和PMS投加量对ZIF-67(C)活化PMS降解MO的影响。结果表明:与ZIF ...
陈晴空   +6 more
doaj   +2 more sources

Metal exchange of ZIF-8 and ZIF-67 nanoparticles with Fe(II) for enhanced photocatalytic performance

open access: yes, 2021
Zeolitic imidazolate frameworks (ZIFs), such as ZIF-8 and ZIF-67, were found to be efficient catalysts. However, ZIFs are not used much in photocatalysis due to their low photocatalytic activity for most reactions.
Mphuthi, Lehlonoholo E.   +2 more
core   +1 more source

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