Qhov sib txawv tseem ceeb ntawm nanoparticles thiab nanoclusters yog tias nanoparticles yog cov khoom uas muaj qhov ntev ntawm 1 txog 100 nm, whereas nanoclusters yog collections ntawm nanoparticles.
Peb tuaj yeem faib cov ntaub ntawv ua peb pawg ua cov ntaub ntawv loj, nanoparticles, thiab nanoclusters. Ib qho nanoparticle yog ib qho ntawm cov teeb meem uas muaj qhov ntev ntawm 1 txog 100 nanometers thaum lub nanocluster yog ib qho kev sau ntawm ib qho me me ntawm cov atoms uas yog li 2 nm.
Nanoparticles yog dab tsi?
A nanoparticle yog ib qho ntawm cov teeb meem uas muaj qhov ntev ntawm 1 txog 100 nanometers. Cov no tseem hu ua ultrafine particles vim tias lawv tsawg heev. Qee lub sij hawm, peb siv lo lus no rau npe cov khoom uas loj txog 500 nanometers. Peb kuj tuaj yeem siv lo lus no los ua lub npe fibers thiab cov raj uas muaj qhov ntev dua 100 nm hauv ob qho kev qhia. Peb tuaj yeem paub qhov txawv ntawm cov khoom no los ntawm microparticles, coarse particles, fine particles, thiab lwm yam, raws li qhov loj ntawm cov particle.
Feem ntau, nanoparticles tsis sediment vim lawv nyiam ua rau Brownian motion. Peb tsis tuaj yeem soj ntsuam cov khoom no hauv cov tshuab microscopes zoo tib yam vim tias lawv muaj tsawg dua qhov wavelengths ntawm pom lub teeb. Yog li ntawd, peb xav tau electron microscopes nrog lub laser los soj ntsuam cov khoom no. Vim tib lub laj thawj, qhov tawg ntawm cov khoom no hauv cov xov xwm pob tshab tseem zoo li pob tshab, thiab cov khoom siv kuj yooj yim dhau los ntawm cov lim dej ntau. Qhov no yog vim li cas peb xav tau cov nanofilters tshwj xeeb rau kev sib cais ntawm cov khoom no los ntawm kev daws teeb meem.
Daim duab 01: Daim duab ntawm Nanoparticle ntawm Platinum
Nanoparticles txawv ntawm lwm cov khoom ntau vim tias cov khoom no muaj thaj tsam loj rau qhov sib piv. Qhov no feature ua nanoparticles txawv ntawm lwm yam hais. Tsis tas li ntawd, nanoparticles muaj txheej txheej interfacial (ntawm qhov nruab nrab los ntawm cov nanoparticles dispersed) uas tuaj yeem npog lawv cov tshuaj thiab lub cev. Tsis tas li ntawd, qhov hnyav affinity ntawm nanoparticles ua rau nws muaj peev xwm ua kom tshem tawm cov nanoparticles. Tsis tas li ntawd, qhov me me thiab thaj chaw loj rau qhov sib piv tso cai rau cua sov, molecules, thiab ions txav mus rau thiab los ntawm cov khoom ntawm tus nqi siab.
Nanoclusters yog dab tsi?
Nanocluster yog ib phau ntawm cov atoms me me. Cov no feem ntau yog hlau nanoclusters. Lawv muaj ib leeg lossis ntau yam. Feem ntau, nanocluster yog li 2 nm. Nanoclusters nyiam ua kom pom cov khoom zoo heev, tshuaj lom neeg thiab lub cev.
Nanoclusters coj zoo li molecules thiab tsis qhia plasmonic tus cwj pwm. Lawv yog qhov sib txuas ntawm atoms thiab nanoparticles. Yog li ntawd, lub ntsiab lus rau nanoclusters yog molecular nanoparticles. Tag nrho cov nanoclusters tsis ruaj khov. Qhov kev ruaj ntseg no nyob ntawm tus naj npawb ntawm atoms hauv nanocluster thiab valence electron suav.
Thaum xav txog kev tsim khoom thiab kev ruaj ntseg ntawm nanoclusters, cov khoom nruab nrab hauv lub xeev tuaj yeem siv rau kev tsim khoom nrog rau cov kab hluav taws xob molecular, ua raws li qhov loj spectrometer rau pawg xaiv, sib cais, thiab tshuaj xyuas. Stabilization tuaj yeem ua tiav los ntawm txoj kev electrostatic stabilization thiab steric stabilization method.
Qhov txawv ntawm Nanoparticles thiab Nanoclusters yog dab tsi?
Peb tuaj yeem faib cov ntaub ntawv ua peb pawg ua cov ntaub ntawv loj, nanoparticles, thiab nanoclusters. Qhov sib txawv tseem ceeb ntawm nanoparticles thiab nanoclusters yog nanoparticles yog cov khoom uas muaj qhov ntev ntawm 1 txog 100 nm, hos nanoclusters yog cov khoom ntawm nanoparticles. Nanoparticles muaj thaj tsam loj rau qhov ntim piv thaum nanoclusters yog cov khoom sau ntawm nanoparticles.
Cov infographic hauv qab no nthuav tawm qhov sib txawv ntawm nanoparticles thiab nanoclusters hauv daim ntawv tabular.
Summary – Nanoparticles vs Nanoclusters
Peb tuaj yeem faib cov ntaub ntawv ua peb pawg ua cov ntaub ntawv loj, nanoparticles, thiab nanoclusters. Qhov sib txawv tseem ceeb ntawm nanoparticles thiab nanoclusters yog nanoparticles yog cov khoom uas muaj qhov ntev ntawm 1 txog 100 nm, whereas nanoclusters yog cov sau ntawm nanoparticles.
