Multifunctional Purification and Sensing of Toxic Hydride Gases by CuBTC Metal–Organic Framework

Peterson, Gregory W.; Britt, David K.; Sun, Daniel T.; Mahle, John J.; Browe, Matthew A.; Demasky, Tyler J.; Smith, Shirmonda; Jenkins, Amanda L.; Rossin, Joseph A.

doi:10.1021/acs.iecr.5b00458

Cited by 51 publications

(45 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An alternative approach may be offered by the use of other adsorbent materials specically targeted at individual gases which can allow for an overall improvement in the lter performance when combined with activated carbon. 1 The use of metalorganic frameworks (MOFs) for the adsorption of toxic gases has been investigated 2,3 due to the tunability of the materials. MOFs provide highly porous structures into which specic functionality can be designed.…”

Section: Introductionmentioning

confidence: 99%

Study of the scale-up, formulation, ageing and ammonia adsorption capacity of MIL-100(Fe), Cu-BTC and CPO-27(Ni) for use in respiratory protection filters

Hindocha

Poulston

2017

Faraday Discuss.

View full text Add to dashboard Cite

The metal-organic frameworks (MOFs) MIL-100(Fe), Cu-BTC and CPO-27(Ni) were synthesised in 1 kg batches. The materials were then formed in two different industrially relevant ways. Firstly, dry granulation was used to produce pellets which were sieved to give material with a 300-1000 μm size, and the fines were subsequently recycled to mimic a large scale industrial process. Secondly, wet granulation with a polymer was used to produce granules which were again sieved to 300-1000 μm. XRD data shows that the structures of MIL-100(Fe) and CPO-27(Ni) remain intact during both forming processes, whilst Cu-BTC is shown to degrade during processing. This is in line with the ammonia adsorption data obtained for the formed materials which evaluated the ammonia adsorption capacity of the materials using breakthrough measurements. MIL-100(Fe) and CPO-27(Ni) are shown to have capacities of 47 mg g and 62 mg g respectively whilst Cu-BTC has a decreased capacity of 37 mg g from 97 mg g upon forming. The formed materials were also aged at 25 °C and 80% humidity for a week and the ammonia adsorption capacity re-evaluated. As expected, Cu-BTC decomposed under these conditions, whilst MIL-100(Fe) and CPO-27(Ni) show slightly decreased ammonia adsorption capacities of 36 mg g and 60 mg g respectively.

show abstract

Section: Introductionmentioning

confidence: 99%

Study of the scale-up, formulation, ageing and ammonia adsorption capacity of MIL-100(Fe), Cu-BTC and CPO-27(Ni) for use in respiratory protection filters

Hindocha

Poulston

2017

Faraday Discuss.

View full text Add to dashboard Cite

show abstract

“…However, less arsine retention is identified under packed bed conditions. The reason for that is inhibited mass transfer by pore blocking due to the large arsenic molecules and the formation of arsenic trioxide at the copper sites …”

Section: Adsorptive Removal Of Toxic Gases By Mofs For Filter Applicamentioning

confidence: 99%

Adsorption and Detection of Hazardous Trace Gases by Metal–Organic Frameworks

et al. 2018

View full text Add to dashboard Cite

The quest for advanced designer adsorbents for air filtration and monitoring hazardous trace gases has recently been more and more driven by the need to ensure clean air in indoor, outdoor, and industrial environments. How to increase safety with regard to personal protection in the event of hazardous gas exposure is a critical question for an ever-growing population spending most of their lifetime indoors, but is also crucial for the chemical industry in order to protect future generations of employees from potential hazards. Metal-organic frameworks (MOFs) are already quite advanced and promising in terms of capacity and specific affinity to overcome limitations of current adsorbent materials for trace and toxic gas adsorption. Due to their advantageous features (e.g., high specific surface area, catalytic activity, tailorable pore sizes, structural diversity, and range of chemical and physical properties), MOFs offer a high potential as adsorbents for air filtration and monitoring of hazardous trace gases. Three advanced topics are considered here, in applying MOFs for selective adsorption: (i) toxic gas adsorption toward filtration for respiratory protection as well as indoor and cabin air, (ii) enrichment of hazardous gases using MOFs, and (iii) MOFs as sensors for toxic trace gases and explosives.

show abstract

“…Non-reversible color changes of Cu-BTC with H2S, and AsH3 was also reported. 22 These may interfere with the water detection. However, the concentrations of these gases in industrial gases are ultra-trace, <0.1 ppbv.…”

Section: Response Characteristicsmentioning

confidence: 99%

Ultra-sensitive Trace-Water Optical Sensor with In situ-synthesized Metal-Organic Framework in Glass Paper

Ohira

Nakamura

Endo³

et al. 2018

ANAL. SCI.

View full text Add to dashboard Cite

Monitoring of trace water in industrial gases is strongly recommended because contaminants cause serious problems during use, especially in the semiconductor industry. An ultra-sensitive trace-water sensor was developed with an in situ-synthesized metal-organic framework as the sensing material. The sample gas is passed through the sensing membrane and efficiently and rapidly collected by the sensing material in the newly designed gas collection/detection cell. The sensing membrane, glass paper impregnated with copper 1,3,5-benzenetricarboxylate (Cu-BTC), is also newly developed. The amount and density of the sensing material in the sensing membrane must be well balanced to achieve rapid and sensitive responses. In the present study, Cu-BTC was synthesized in situ in glass paper. The developed system gave high sensing performances with a limit of detection (signal/noise ratio = 3) of 9 parts per billion by volume (ppbv) HO and a 90% response time of 86 s for 200 ppbv HO. The reproducibility of the responses within and between lots had relative standard deviations for 500 ppbv HO of 0.8% (n = 10) and 1.5% (n = 3), respectively. The long-term (2 weeks) stability was 7.3% for 400 ppbv HO and one-year continuous monitoring test showed the sensitivity change of <∼3% before and after the study. Furthermore, the system response was in good agreement with the response achieved in cavity ring-down spectroscopy. These performances are sufficient for monitoring trace water in industrial gases. The integrated system with light and gas transparent structure for gas collection/absorbance detection can also be used for other target gases, using specific metal-organic frameworks.

show abstract

Multifunctional Purification and Sensing of Toxic Hydride Gases by CuBTC Metal–Organic Framework

Cited by 51 publications

References 38 publications

Study of the scale-up, formulation, ageing and ammonia adsorption capacity of MIL-100(Fe), Cu-BTC and CPO-27(Ni) for use in respiratory protection filters

Study of the scale-up, formulation, ageing and ammonia adsorption capacity of MIL-100(Fe), Cu-BTC and CPO-27(Ni) for use in respiratory protection filters

Adsorption and Detection of Hazardous Trace Gases by Metal–Organic Frameworks

Ultra-sensitive Trace-Water Optical Sensor with In situ-synthesized Metal-Organic Framework in Glass Paper

Contact Info

Product

Resources

About