I-Hielscher Ultrasound Technology

Ukulungiselela i-Ultrasonic ye-Metal-Organic Frameworks (MOFs)

  • Ama-Metal-Organic Framework ama-compounds akhiwa kusuka kwi-ion zensimbi nama-molecule e-organic ukuze i-hybrid eyodwa, amabili, noma emithathu ibe yinto ehlanganisiwe. Lezi zakhiwo ezingaxhunyiwe zingaba yizinkathazo noma ezingenabanikazi futhi zinikeze imisebenzi eminingi.
  • I-synthesis sonochemical ye-MOFs iyindlela ethembisayo njengoba amakristalu ensimbi-organic akhiqizwa kahle kakhulu futhi enemvelo-friendly.
  • Ukukhiqizwa kwe-ultrasonic ye-MOFs kungenziwa ngokulingana ngokulinganiswayo kusuka ekulungiseleleni amasampula amancane ebhodini ekukhiqizeni okugcwele kwezebhizinisi.

Ama-Frame-Organic Frameworks

Izinhlaka ze-crystalline zensimbi-organic (MOFs) ziwela ngaphansi kwesigaba sezinto eziphezulu ezibonakalayo ezinobungozi, ezingasetshenziselwa ukugcinwa kwegesi, izikhangiso / ukuhlukaniswa, catalysis, njenge-adsorbents, magnetism, design designer, kanye nokulethwa kwezidakamizwa. Ama-MOF ajwayele ukubunjwa yi-self-assembly lapho ama-secondary units (SBUs) ahlangene khona nama-spacers (ligands) ukudala amanethiwekhi anzima. I-spacers ephilayo noma i-SBUs yensimbi ingashintshwa ukuze kulawulwe i-porosity ye-MOF, ebaluleke kakhulu mayelana nokusebenza kwayo kanye nokusebenza kwayo kwezicelo ezithile.

I-Sonochemical Synthesis ye-MOFs

I-ultrasonic irradiation futhi ngaleyo ndlela yenziwe cavitation ziyaziwa ngemiphumela yayo eyingqayizivele ekusebenzeni kwamakhemikhali, okubizwa ngokuthi Sonochemistry. I-implosion enobudlova yama-bubble cavitation idala izindawo ezishisayo zendawo ezifudumele kakhulu (ama-5000 K), izingcindezi (1800 atm), namazinga okupholisa (1010Ks-1) kanye namagagasi okushaqeka kanye nama-jets avela ketshezi. Kulezi cavitational izindawo ezishisayo, i-crystal nucleation nokukhula, isib. ukuvuthwa kwe-Ostwald, kuthathwa futhi kukhuthazwa. Kodwa-ke, usayizi wezinhlayiya ulinganiselwe kusukela lezo zindawo ezishisayo zibhekene namazinga okupholisa kakhulu okusho ukuthi izinga lokushisa lesisetshenziswa esiphezulu liwela ngaphansi kwamamillisecond.
I-Ultrasound iyatiwa ukuhlanganisa ama-MOF ngokushesha ngaphansi mnene ukucubungula izimo, njengokuthi i-solvent-free, ku ukushisa ekamelweni futhi ngaphansi ukucindezela okukhulu. Ucwaningo lubonise ukuthi ama-MOF angenziwa izindleko ngempumelelo AT isivuno high nge umzila we-sonochemical. Ekugcineni, i sonochemical synthesis of MOFs kuyinto a oluhlaza, indlela engokwemvelo.

Ukulungiswa kwe-MOF-5

Esifundweni sikaWang et al (2011), uZn4O [1,4-benzenedicarboxylate]3 kwakuhlanganiswa nge-intanethi sonochemical umzila. 1.36g H2I-BDC no-4.84g Zn (CHA3)2· 6H2O waxoshwa ngokuhlanganyela ku-160mL DMF. Khona-ke TEA engu-6.43g yanezelwa engxenyeni ngaphansi kwe-ultrasonic irradiation. Ngemuva kwe-2 h umbala ongenambala wawuqoqwe ngokufihla futhi wageza nge-DMF. Ukuqina kwakomile ku-90 ° C ku-vacuum bese kugcinwa ku-desiccator ye-vacuum.

Ukulungiselela MOF microporous Cu3(I-BTC)2

Li et al. (2009) kubika ukwaziswa okusebenza kahle kwe-ultrasonic ye-three-dimensional (3-D) uhlaka lensimbi-ophilayo (MOF) eneziteshi ezingu-3-D, njenge-Cu3(I-BTC)2 (HKUST-1, BTC = benzene-1,3,5-tricarboxylate). Ukusabela kwe-cupric acetate no-H3I-BTC kwisisombululo esixubekile se-DMF / EtOH / H2O (3: 1: 2, v / v) ngaphansi kwe-ultrasonic irradiation at izinga lokushisa elimnandi futhi ingcindezi yasemkhathini ngoba izikhathi ezimfushane zokuphendula (I-5-60 min) yanikezela i-Cu3(I-BTC)2 Ngaphakathi isivuno high (62.6-85.1%). Lezi Cu3(I-BTC)2 I-nano-crystals inezinhlangothi zobubanzi besayizi ka-10-200 nm, okuningi ezincane kunelabo abahlanganiswayo ngokusebenzisa indlela evamile ye-solvothermal. Kwakungekho ukungafani okuphawulekayo ezindaweni zomzimba, isib. Indawo ye-BET, ivolumu ye-pore, ne-hydrogen storage capacity, phakathi kwe-Cu3(I-BTC)2 i-nano-amakristali elungiselelwe ngokusebenzisa indlela ye-ultrasonic kanye ne-microcrystals etholakalayo ngokusebenzisa indlela enhle ye-solvothermal. Uma kuqhathaniswa nezinqubo zendabuko, ezifana nezindlela zokusakaza i-solvent, izindlela ze-hydrothermal ne-solvothermal, indlela ye-ultrasonic ekwakhiweni kwama-MOF anezidakamizwa itholakala kakhulu ephumelelayo futhi ngaphezulu nobungani bemvelo.

Ukulungiselela i-One-Dimensional Mg (II) MOF

Tahmasian et al. (2013) kubika i ephumelelayo, izindleko eziphansi, futhi ukuphathwa kwemvelo umzila wokukhiqiza uhlaka lwe-3D supramolecular metal-organic (MOF) ngokusekelwe kuMgII, {[Mg (HIDC) (H2O)2] ⋅1.5H2O}n (H3L = 4,5-imidazole-dicarboxylic acid) ngokusebenzisa umzila osizwa nge-ultrasonically.
I-Nanostructured {[Mg (HIDC) (H2O)2] ⋅1.5H2O}n yenziwe ngokwenziwa okulandelayo sonochemical umzila. Ukuze ulungiselele i- {Mg (HIDC) (H2O) 2] ⋅1.5H2O} n (1), i-20 mL yesisombululo se-ligand H3I-IDC (0.05M) kanye ne-potassium hydroxide (0.1 M) ibekwe isofthiwe ephezulu ye-ultrasonic esakhiwe ngamandla angaphezu kwe-305 W. Kule mkhambi 20 ml wekhambi elimnandi le-magnesium nitrate (0.05M) lafakwa nge-dropwise. Ama-precipitates atholakalayo ahlungiwe, ahlanjwe ngamanzi i-andethanol, futhi omisiwe emoyeni (mp> 300ºC. (Itholakele: C, 24.84; H, 3.22; N, 11.67%.) IR (cm-1) amaqembu akhethiwe: 3383 (w), 3190 (w), 1607 (br), 1500 (m), 1390 (s), 1242 (m), 820 (m), 652 (m)).
Ukuze ufunde umphumela wokuhlushwa kwama-reagents okuqala ngosayizi kanye ne-morphology ye-nanostructured compound, izinqubo ezingenhla zenziwe ngaphansi kwalesi simo sokuhlushwa se-reagents yokuqala: [HL2-] = [Mg2 +] = 0.025 M.

I-Sono-Synthesis ye-MOFs ye-fluorescent microporous

Qiu et al. (2008) ithole a sonochemical umzila we-synthesis okusheshayo we-MOF microorous fluorescent, i-Zn3(I-BTC)2⋅12H2O (1) nokubona okukhethiwe kwe-organoamines usebenzisa ama-nanocrystals of 1. Imiphumela ibonisa ukuthi i-ultrasonic Ukusebenzisana iyindlela elula, ephumelelayo, ephansi, kanye ne-environment friendly friendly kuma-nanoscale MOFs.
I-MOF 1 yahlanganiswa ngokusebenzisa indlela ye-ultrasonic ku-an i-ambient lokushisa kanye emkhathini ukucindezelwa ngezikhathi ezahlukene zokuphendula ezinhlanu, 10, 30, no-90, ngokulandelana. Ukuhlolwa kokulawula kwenziwe futhi ukwenza isakhi 1 ngokusebenzisa indlela ye-hydrothermal, futhi izakhiwo zaqinisekiswa yi-IR, ukuhlaziywa okuyisisekelo kanye nokuhlaziywa kwe-Rietveld wephesenti ye-X-ray diffraction (XRD) ngokusebenzisa i-WinPLOTR ne-Fullprof13. Ngokumangazayo, ukusabela kwe-zinc acetate dihydrate ne-benzen-1,3,5-tricarboxylic acid (H3BTC) ngo-20% we-ethanol emanzini (v / v) ngaphansi kwe-ultrasonic irradiation endaweni yokushisa ephezulu kanye nengcindezi yamaminithi angu-5 anikeze ngokuphawulekayo isivuno high (75.3%, ngokusekelwe kuH3BTC). Futhi, isivuno se-1 sakhuphuka kancane kancane kusuka ku-78.2% kuya ku-85.3% ngokwandisa isikhathi sokuphendula kusukela kumaminithi angu-10 kuya kwangu-90. Lo mphumela ubonisa lokho synthesis ngokushesha ye-MOF ingaqaphela ngokuphawulekayo isivuno high usebenzisa indlela ye-ultrasonic. Uma kuqhathaniswa ne-hydrothermal synthesis ye-Composé efanayo i-MOF 1, eyenziwa ngo-140 ° C ngokucindezela okukhulu ngehora eli-24, i-12 ultrasonic synthesis itholakala ukuthi iyindlela ephumelelayo kakhulu ekuvuneni okuphezulu futhi izindleko eziphansi.
Njengoba akukho mkhiqizo owatholwa ngokuxuba i-acetate ye-zinc ne-H3BTC endaweni efanayo yokusabela lapho kusetshenzwa khona izinga lokushisa nokucindezela ngokungabikho kwe-ultrasound, Sonication kumele badlale kubalulekile indima ngesikhathi kwakhiwa i-MOF 1.

I-Hielscher inikeza amadivaysi anamandla ama-ultrasonic kusukela ebhodini kuya esikalini sezimboni (Chofoza ukuze ukhulise!)

Izinqubo ze-Ultrasonic: Kusuka I-Lab kuya Izimboni Isikali

Isikhali Sonochemical

Hielscher Ultrasonics ine isipiliyoni isikhathi eside kule design kanye nokukhiqizwa ultrasonicators ezinamandla futhi athembekile kanye reactors sonochemical. I-Hielscher ihlanganisa izidingo zakho zohlelo lokusebenza ngobubanzi bayo obubanzi bamadivayisi we-ultrasonic – kusuka ezincane Amadivayisi webhu ngaphezulu ibhentshi-phezulu futhi umshayeli ultrasonicators kuze full-izinhlelo zezimboni ukukhiqizwa kwe-sonochemical ngezinga lokuthengisa. Izinhlobo ezihlukahlukene ze-sonotrodes, i-booster, i-reactors, i-flow cells, amabhokisi wokukhansela komsindo nezesekeli avumela ukulungisa isethaphu enhle yakho sonochemical ukusabela. Amadivayisi ultrasonic ultrasonic kakhulu okuqinile, eyakhelwe 24/7 ukusebenza futhi badinga ukugcinwa okuncane kakhulu.

Ama-Metal-Organic Framework (MOFs) angakhiwa ngaphansi kwe-ultrasonic irradiation (Chofoza ukuze ukhulise!)

I-Metal-Organic Framworks ingahle ihlanganiswe ngempumelelo ngomzila we-sonochemical

Isicelo solwazi




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I-UIP1000hd isetshenziselwa ukuhlanganiswa kwe-sonochemical ka-MOF-5 (Chofoza ukuze ukhulise!)

I-Ultrasonicator I-UIP1000hd nge-reactor sonochemical

Izincwadi / Izinkomba

  • Dey, Chandan; I-Kundu, iTanay; I-Biswal, i-Bishnu P .; Mallick, Arijit; I-Banerjee, i-Rahul (2014): Izinhlaka ze-crystal-organic organic (MOFs): synthesis, isakhiwo kanye nomsebenzi. Acta Crystallographica Isigaba B 70, 2014. 3-10.
  • UHashemi, uLida; Morsali, Ali; U-Yilmaz, u-Veysel T .; Büyükgüngor, Orhan; Khavasi, Hamid Reza; Ashouri, Fatemeh; I-Bagherzadeh, Mojtaba (2014): Ama-sonochemical syntheses we-nano-size lead (II) ohlaka-metal-organic frameworks; application for catalysis kanye nokulungiselela ukuhola (II) oxide nanoparticles. Journal of Structure Molecular 1072, 2014. 260-266.
  • ULi, uZong-Qun; Qiu, Ling-Guang; I-Xu, i-Tao; I-Wu, Yun; U-Wang, Wei; UWu, uZhen-Yu; Jiang, Xia (2009): Ukuhlanganiswa kwe-Ultrasonic ye-microporous metal-organic framework U-Cu3 (BTC) 2 endaweni yokushisa ephezulu nokucindezela: Indlela ephumelelayo neyomvelo. Izincwadi Zokubhala 63/1, 2009. 78-80.
  • Qiu, Ling-Guang; ULi, uZong-Qun; I-Wu, Yun; U-Wang, Wei; I-Xu, i-Tao; Jiang, Xia (2008): Ukubambisana okulula kwezinto ezihamba phambili ze-microporous metal-organic framework nge-ultrasonic method kanye nokuzwa okukhethiwe kwe-organoamines. Ukuxhumana kweKhemikhali 2008, 3642-3644.
  • I-Stock, uNorbert; I-Biswas, i-Syam (2012): Ukusebenzisana kwama-Metal-Organic Frameworks (MOFs): Imizila eyahlukahlukeneyo ye-MOF, ama-Morphologies, nama-Composites. Ukubuyekezwa kweMikhiqizo 112/2, 2012. 933-969.
  • Suslick, Kenneth S. (ed.) (1988): I-ultrasound: I-Chemical, Physical and Effects yayo. I-VCH: Weinheim, eJalimane. 1988.
  • I-Tahmasian, i-Arineh; Morsali, Ali; UJoo, Sang Woo (2013): Ama-Syntheses e-Sonochemical a-One-dimensional Mg (II) Uhlaka lwe-Metal-Organic: I-Precursor entsha yokulungiselela i-MgO I-Nanostructure eyodwa-ntathu. I-Journal of Nanomaterials 2013.
  • Thompson, uJoshuwa A .; I-Chapman, i-Karena W .; IKoros, uWilliam J .; UJones, uChristopher W .; I-Nair, i-Sankar (2012): Ukuvuthwa kwe-Ostwald eyenziwe nge-sonication ye-nanifarticles ye-ZIF-8 nokubunjwa kwe-ZIF-8 / i-polymer membranes. Izinto ezincane ze-Microporous and Mesoporous 158, 2012. 292-299.
  • Wang, LiPing; I-Xiao, Bin; Wang, GongYing; I-Wu, i-JiQian (2011): Ukuhlanganiswa kwe-polycarbonate diol etholakala yi-metal-organic framework Zn4O [CO2-C6H4-CO2]3. I-Science China Chemistry 54/9, 2011. 1468-1473.

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