MOF-templated controllable synthesis of α-Fe2O3 porous nanorods and their gas sensing properties

RSC Advances ◽  
2016 ◽  
Vol 6 (97) ◽  
pp. 94699-94705 ◽  
Author(s):  
Pingyi Gao ◽  
Rong Liu ◽  
Huihan Huang ◽  
Xiao Jia ◽  
Haibo Pan
Keyword(s):  
Gas Sensing ◽  
Metal Organic Framework ◽  
Controllable Synthesis ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Metal Organic ◽  
Organic Framework

α-Fe2O3 porous nanorods (PNRs) with controlled morphologies were simply synthesized by thermolysis of Fe-based metal–organic framework (MIL-88A) at 500 °C.

scholarly journals MOFs-Derived Porous NiFe2O4 Nano-Octahedrons with Hollow Interiors for an Excellent Toluene Gas Sensor

Nanomaterials ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 1059 ◽  
Author(s):  
Yanlin Zhang ◽  
Chaowei Jia ◽  
Qiuyue Wang ◽  
Quan Kong ◽  
Gang Chen ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Metal Organic Framework ◽  
Fast Response ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Metal Organic ◽  
Response And Recovery ◽  
Nife2o4 Nanoparticles ◽  
Gas Molecules ◽  
Ppm Level

Toluene is extensively used in many industrial products, which needs to be effectively detected by sensitive gas sensors even at low-ppm-level concentrations. Here, NiFe2O4 nano-octahedrons were calcinated from NiFe-bimetallic metal-organic framework (MOFs) octahedrons synthesized by a facile refluxing method. The co-existence of p-Phthalic acid (PTA) and 3,3-diaminobenzidine (DAB) promotes the formation of smooth NiFe-bimetallic MOFs octahedrons. After subsequent thermal treatment, a big weight loss (about 85%) transformed NiFe2O4 nanoparticles (30 nm) into NiFe2O4 porous nano-octahedrons with hollow interiors. The NiFe2O4 nano-octahedron based sensor exhibited excellent gas sensing properties for toluene with a nice stability, fast response, and recovery time (25 s/40 s to 100 ppm toluene), and a lower detection limitation (1 ppm) at 260 °C. The excellent toluene-sensing properties can not only be derived from the hollow interiors combined with porous nano-octahedrons to favor the diffusion of gas molecules, but also from the efficient catalytic activity of NiFe2O4 nanoparticles.

In Situ Growth of Metal–Organic Framework Thin Films with Gas Sensing and Molecule Storage Properties

Langmuir ◽  
2013 ◽  
Vol 29 (27) ◽  
pp. 8657-8664 ◽  
Author(s):  
Wei-Jin Li ◽  
Shui-Ying Gao ◽  
Tian-Fu Liu ◽  
Li-Wei Han ◽  
Zu-Jin Lin ◽  
...  
Keyword(s):  
Thin Films ◽  
Gas Sensing ◽  
Metal Organic Framework ◽  
In Situ Growth ◽  
Metal Organic ◽  
Storage Properties ◽  
Organic Framework

Hierarchical hollow ZnO cubes constructed using self-sacrificial ZIF-8 frameworks and their enhanced benzene gas-sensing properties

2015 ◽  
Vol 39 (9) ◽  
pp. 7060-7065 ◽  
Author(s):  
Wenhui Li ◽  
Xiaofeng Wu ◽  
Haidi Liu ◽  
Jiayuan Chen ◽  
Wenxiang Tang ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Metal Organic Frameworks ◽  
Chemical Sensitivity ◽  
Sensing Properties ◽  
Low Concentration ◽  
Gas Sensing Properties ◽  
Metal Organic ◽  
Gaseous Benzene

Hierarchical ZnO hollow cubes constructed using Zn-based metal–organic frameworks enhance significantly chemical sensitivity towards low-concentration gaseous benzene.

A novel sustainable metal organic framework as the ultimate aqueous phase sensor for natural hazards: detection of nitrobenzene and F− at the ppb level and rapid and selective adsorption of methylene blue

CrystEngComm ◽  
2020 ◽  
Vol 22 (22) ◽  
pp. 3891-3909 ◽  
Author(s):  
Mantasha I. ◽  
M. Shahid ◽  
Hatem A. M. Saleh ◽  
Khalil M. A. Qasem ◽  
Musheer Ahmad
Keyword(s):  
Methylene Blue ◽  
Natural Hazards ◽  
Aqueous Phase ◽  
Selective Adsorption ◽  
Metal Organic Framework ◽  
Sensing Properties ◽  
Metal Organic ◽  
Phase Sensor ◽  
Organic Framework

A novel metal organic framework (MOF) exhibits good aqueous phase sensing properties towards nitrobenzene and fluoride anions and selective adsorption/separation ability for methylene blue.

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