Sonochemistry

Sonochemistry

Kev piav qhia

Sonochemistry yog ib ceg ntawm kev cuam tshuam ntawm cov tshuaj lom neeg thiab lub suab nthwv dej raws li lub npe qhia. Lub suab nthwv dej yog ultrasonic, piv txwv li, cov nthwv dej ntau zaus (20 kHz tuaj yeem mus txog 10 MHz thiab siab dua) dhau qhov ntau ntawm tib neeg pob ntseg (20-20 kHz). Sonochemistry thev naus laus zis tau muab tso rau hauv ob qho tib si kev kawm tshuab thiab hluavtaws. Ib qho xwm txheej tseem ceeb hu ua acoustic cavitation tshwm sim qhov twg microbubbles loj hlob thiab nyob rau hauv lub zog ntawm ultrasonic tsis lawv vau. Sonoluminescence yog ib qho ntawm cov txiaj ntsig ntawm cavitation uas ua rau homogeneous sonochemistry. Sonochemistry kuj tau nkag mus rau ib qho ntawm cov kev loj hlob biotechnology los ntawm kev ua kom yooj yim ntawm enzyme mus rau kev npaj cov catalyst. Nws kuj yog siv rau fabrication ntawm nanomaterial uas los nyob rau hauv cov kua theem txoj kev. Ib qho tsis zoo ntawm kev npaj nanomaterial yog lub sijhawm nws siv los qhia cov txiaj ntsig. Qhov no tuaj yeem raug tshem tawm thaum tshawb fawb biotechnological ua ke nrog kev siv sonochemical. Cov kev tshawb fawb tsis ntev los no tau ua pov thawj tias ultrasound irradiation yog ob lub sijhawm thiab tus nqi-zoo rau txhua yam txheej txheem bio-zoo li kev txhim kho ntawm emulsification thiab trans-esterification ntawm fatty acids rau bio-roj khoom. Bio-txheej txheem saib xyuas thiab dewatering ntawm sludge kuj tau nrawm.

Cov teebmeem ntawm sonochemistry

Cov no yog cov tshuaj lom neeg thiab lub cev muaj zog uas cov tshuaj poob rau hauv homogeneous sonochemistry ntawm cov kua, heterogeneous sonochemistry ntawm cov kua-kua lossis kua-solid systems, thiab sonocatalysis. Raws li cov kev tshawb fawb ua ntej, qhov cuam tshuam ntawm ultrasound ntawm slurries ntawm cov khoom inorganic yog qhia.

Parameter

Kev siv ntawm sonochemistry

1. ultrasonic dispersionntawm Nanostructured inorganic cov ntaub ntawv

Ob peb xyoos dhau los sonochemical cov tshuaj tiv thaiv tau raug xaiv rau txoj hauv kev dav dav ntawm cov khoom siv nanophase. Vim txawv tus cwj pwm ntawm nanosized khoom piv rau cov bulkier sawv daws yuav. Cov pawg me me no muaj cov qauv hluav taws xob uas muaj qhov ntom ntom ntom ntom. Ob theem roj thiab cov txheej txheem ua kua theem yog siv los ua ke. Nrog rau cov txheej txheem sib txawv no thiab lawv cov kev sib xyaw ua ke, cov txheej txheem sonochemical suav nrog.

2. sonochemistryhauv Nanomaterial Preparation

Nyob rau hauv xyoo tas los no, txoj kev sonochemical tau dhau los ua cov txheej txheem tseem ceeb rau kev npaj cov ntaub ntawv tshiab nrog cov khoom tshwj xeeb. Qhov tshwj xeeb lub cev thiab tshuaj lom neeg ib puag ncig los ntawm acoustic cavitation tau muab txoj hauv kev tseem ceeb rau cov kws tshawb fawb los npaj cov khoom siv nano. Ntau hom ntaub ntawv nanostructured nrog kev ua haujlwm siab catalytic tuaj yeem tau txais thaum sonochemically decomposes volatile organometallic precursors nyob rau hauv high-boiling kuab tshuaj. Cov txheej txheem kev npaj mas suav nrog ultrasonic atomization decomposition txoj kev, hlau organic teeb meem ultrasonic decomposition txoj kev, tshuaj los nag txoj kev thiab sonoelectrochemical txoj kev. Piv txwv li, txoj kev nag lossis daus yog ib txoj hauv kev zoo tshaj plaws hauv cov txheej txheem ntub dej rau kev npaj nanomaterials.

Kev ua tau zoo ntawm lub cev. Qhov luaj li cas ntawm precipitated hais uas tsim los ntawm txoj kev no mas yog nyob ntawm tus txheeb ze ntawm nuclei loj hlob thiab kev loj hlob. Yog hais tias lub teb ultrasonic tau qhia, ntawm ib sab, qhov kub thiab txias ib puag ncig tsim los ntawm ultrasonic cavitation muab lub zog nrog lub zog los kov yeej lub zog nucleation los ntawm lub zog sib cuam tshuam thaum lub sij hawm tsim cov khoom me me, uas ua rau cov nucleation nce. los ntawm ntau qhov kev txiav txim ntawm qhov loj; , ntxiv rau ib tug loj tus naj npawb ntawm microscopic hais generated nyob rau saum npoo ntawm cov khoom hais los ntawm ultrasonic cavitation

Cov npuas me me yuav cuam tshuam nrog kev sib haum xeeb ntawm cov siv lead ua ions, uas tsis yog qhov tsim nyog rau kev loj hlob ntxiv ntawm cov crystal nucleus. Ntawm qhov tod tes, txhua yam cuam tshuam ntawm crushing, emulsification, nplawm, thiab lwm yam uas tsim los ntawm lub siab-siab poob siab tsis thiab micro-jets generated los ntawm ultrasonic cavitation tau zoo tiv thaiv kev loj hlob thiab agglomeration ntawm siv lead ua nuclei nyob rau hauv ib lub sij hawm ntawm lub sij hawm, ua rau kev faib cov khoom me me sib xws. Cov laj thawj saum toj no ua rau cov nanoparticles synthesized los ntawm ultrasonic nag lossis daus txheej txheem kom muaj me me particle loj thiab zoo dispersibility dua cov synthesized tsis muaj ultrasound.

Cim npe nrov: sonochemistry, Tuam Tshoj, lwm tus neeg, manufacturers, hoobkas, kev cai