Web of Science (SCI) tsis ntev los no tau ntxiv 5 kab lus hais txog kev kho dej ceramic.
1. Hloov cov khib nyiab rau cov lim dej: Ib qho Mini-Kev tshuaj xyuas ntawm Ceramic Membranes los ntawm Upcycled Materials
Phau ntawv: khib
Kev kub ntxhov thoob ntiaj teb txuas ntxiv zuj zus ntxiv, thiab kev lag luam thiab cov pov tseg hauv nroog txuas ntxiv mus txuas ntxiv tsis tu ncua, maj mam xav tau cov kev daws teeb meem tshiab uas ua raws li lub tswv yim ntawm kev lag luam ncig. Qhov kev tshuaj xyuas no tshawb txog qhov kev hloov pauv ntawm cov pov tseg -raws li cov khoom siv ceramics- siv lawv los ua cov dej huv huv kom ruaj khov rau ib txhij daws qhov teeb meem ntawm kev siv cov khoom pov tseg thiab cov dej tsis huv. Ceramic daim nyias nyias yog npaj los ntawm siab -purity inorganic cov ntaub ntawv thiab paub txog lawv cov tshuaj zoo heev corrosion kuj, thermal stability, thiab durability. Kev tshawb fawb tsis ntev los no qhia tau hais tias cov khoom lag luam xws li av nkos liab, ya tshauv, moj tej tawg rauv slag, thee gangue, thiab kiln cov menyuam khib nyiab tuaj yeem hloov pauv tau zoo rau hauv cov ntaub ntawv lim uas sib xyaw ua ke nrog tus nqi qis thiab kev ua haujlwm siab. Kab lus no tau tshuaj xyuas cov txheej txheem kev npaj, cov khoom siv, thiab cov ntsuas kev ua haujlwm ntawm cov khib nyiab-raws li ceramics, ua kom pom qhov ua tau ntawm txoj hauv kev no: hloov cov khoom pov tseg rau hauv cov khoom siv lim dej tsis yog tsuas yog txo cov pa phem ib puag ncig xwb tab sis kuj muab kev txhawb zog rau kev ruaj ntseg dej thoob ntiaj teb thiab kev txhim kho kom ruaj khov.
2. Kev ntub dej ntawm qhov chaw-tsav thiab yees duab-catalytic tus kheej- ntxuav TiO₂/Al₂O₃ ceramic membrane rau oily wastewater kho
Phau ntawv Journal: NTXIV THIAB INTERFACES
Membrane fouling thiab flux decay thaum lub sij hawm ntev - lub sij hawm pom yog cov teeb meem tseem ceeb ntawm daim nyias nyias -raws li roj- dej emulsion sib cais technologies. Txoj kev tshawb no tau npaj cov khoom siv ntau yam ceramic membrane nrog hydrophilic permeability, oleophobicity, thiab photocatalytic tus kheej- ntxuav cov khoom los daws cov teeb meem no. Cov daim nyias nyias no tau npaj los ntawm kev poob- txheej nano-titanium dioxide (TiO₂) txheej mus rau ib qho porous alumina (Al₂O₃) substrate tom qab calcination. Cov qauv, morphological, thiab compositional analyses siv X-ray diffraction (XRD), scanning electron microscopy (SEM), zog-dispersive X-ray spectroscopy (EDX), thiab elemental mapping tau lees paub qhov tsim ntawm ib tug uniform thiab tuab TiO₂ nyias txheej ntawm cov khoom siv lead ua los yog cov txheej txheem substrate. pore thaiv.
Deg wettability characterization ntawm nano-TiO₂ coated Al₂O₃ membrane qhia superhydrophilic thiab superoleophilic zog nyob rau hauv huab cua, thaum nthuav tawm superoleophobic zog hauv qab dej. Qhov tshwj xeeb wetting cwj pwm no tshwm sim los ntawm lub zog saum npoo av ntawm TiO₂ nws tus kheej thiab cov txiaj ntsig zoo ntawm cov qauv hierarchical nano / micron roughness ntawm daim nyias nyias.
Kev ntsuas kev ua tau zoo ntawm cov roj- dej emulsion sib cais nyob rau hauv tus ntoo khaub lig-flow filtration system qhia tau hais tias lub membrane cov permeate flux tau nce kwv yees li linearly nrog nce kev khiav hauj lwm siab, thiab kev sib cais efficiency tseem ruaj khov tshaj 99% nyob rau hauv lub 0.5-2 bar siab ntau yam. Ntev-kev ntsuas kev ruaj ntseg tom qab 840 feeb ntawm kev ua haujlwm tas li pom tau tias, cuam tshuam los ntawm cov organic (roj) cov kab mob sib kis, cov permeate flux tau txo mus rau kwv yees li 70% ntawm nws cov nqi pib, tab sis qhov kev sib cais ua tau zoo tsis hloov pauv ntau. Qhov tseem ceeb tshaj, siv cov khoom siv photocatalytic nws tus kheej- ntxuav cov khoom ntawm TiO₂, tsuas yog 45 feeb ntawm UV irradiation yog xav tau los ua kom zoo degrade cov organic pollutants nyob rau hauv daim nyias nyias, kho cov flux mus txog 90% ntawm nws cov nqi pib.
3. Cov dej ntxhua khaub ncaws reclamation siv cov khoom siv ruaj khov los ntawm cov khib nyiab marble plua plav: Kev ua tau zoo, kev tsom xam fouling
Phau ntawv Journal: Environmental Research
Kev nrawm nrawm hauv nroog thiab kev loj hlob sai ntawm cov kev lag luam tshiab tau ua rau dhau - kev siv cov peev txheej dej. Txawm hais tias kev ua liaj ua teb thiab kev lag luam suav txog ntau dua 60% ntawm tag nrho cov dej siv, kev siv dej hauv tsev kuj yog qhov tseem ceeb ntawm cov dej khib nyiab- ze li 50% -80% ntawm cov dej khib nyiab tawm los ntawm cov dej hauv tsev. Kev loj hlob ntawm cov pej xeem txuas ntxiv thiab kev loj hlob hauv nroog ncaj qha ua rau muaj kev xav tau khaub ncaws, ua rau muaj ntau yam ntawm cov dej khib nyiab.
Txoj kev tshawb no siv cov khoom siv hluav taws xob ruaj khov uas tau npaj los ntawm cov khib nyiab marble plua plav los kho cov ntxhua khaub ncaws khib nyiab, ua ke nrog lub ntiajteb txawj nqus-tsav tuag- qhov kawg pom, ua rau tus nqi qis tag nrho. Membrane kev ua tau zoo raug soj ntsuam raws li ob qhov ntev: kev tshem tawm cov pa phem thiab muaj peev xwm tiv thaiv fouling. Nyob rau hauv qis- kev ua haujlwm siab ntawm tsuas yog 0.05 bar, daim nyias nyias tau ua tiav qhov kev tshem tawm ntawm 88% rau Tshuaj Oxygen Demand (COD), 98% rau Microplastics (MPs), thiab 99% rau turbidity. Cov dej nyoos COD thiab MP concentrations yog 1265 mg / L thiab 2.88 × 10⁶ particles / L, feem; Tom qab kev kho mob, COD txo qis mus rau 145 mg / L, ua tau raws li cov qauv kev lees paub rau kev siv tsis yog{14}} siv tau. Nyob rau tib lub sijhawm, daim nyias nyias tau nthuav tawm cov kev ua haujlwm zoo heev, nrog rau tus nqi rov qab (FRR) ntawm 81%.
Fouling mechanism tsom xam pom tias daim nyias nyias fouling yog dominated los ntawm kev sib xyaw ua ke ntawm cov pore blockage thiab ncuav mog qab zib pom. Cov membrane no sib xyaw ua kom muaj kuab paug zoo tshem tawm nrog cov khoom zoo heev los tiv thaiv fouling, ua rau nws zoo tagnrho rau kev kho cov dej khib nyiab, nrog cov dej uas tsim tawm ncaj qha rov siv dua hauv cov ntawv tsis siv tau.
4. UV-C LED Disinfection of Antibiotic-Resistant Escherichia coli hauv dej: Kev sib xyaw nrog Ceramic Membrane Lim
Phau ntawv: PROCESSES
Kev sib kis ntawm cov tshuaj tiv thaiv kab mob tau dhau los ua teeb meem thoob ntiaj teb ua rau muaj kev phom sij rau pej xeem kev noj qab haus huv thiab kev nyab xeeb ntawm ecosystem. Kev tsim cov thev naus laus zis tshiab tshuaj tua kab mob yog ib qho tseem ceeb rau kev daws qhov teeb meem no. Txoj kev tshawb no tau siv lub teeb ultraviolet sib sib zog nqus-emitting diodes (UV-C LEDs) kom siv tau cov tshuaj tua kab mob tsis ua haujlwm- tiv thaiv Escherichia coli cais tawm ntawm tiag- ntiaj teb cov dej nyob ib puag ncig (xws li dej hiav txwv, dej hiav txwv, thiab cov dej kho hauv nroog).
Qhov kev sim xaiv ob hom UV-C wavelengths, 255 nm thiab 265 nm, thiab siv UV irradiation koob tshuaj ntawm 1-7 mJ / cm² rau phosphate buffer solutions inoculated nrog cov kab mob sib xyaw ntawm 10 hom kab mob E. coli. Cov txiaj ntsig tau pom tias ntawm qhov koob tshuaj irradiation ntawm 2 mJ / cm², ob qho tib si wavelengths ua tiav kwv yees li tsib qhov kev txiav txim ntawm qhov loj ntawm cov kab mob logarithmic inactivation. Kev soj ntsuam xyuas electron microscopy (SEM) tsis tau nthuav tawm cov kev hloov pauv tseem ceeb hauv cov kab mob morphology tom qab UV irradiation, tab sis kev tshawb nrhiav ntau ntawm pyrimidine dimer tsim tau pom- kwv yees li 40 ng / mL ntawm cyclobutanepyrimidine dimers tau tsim ntawm ob qho tib si wavelengths 2 mJ / cm 2. inactivation mechanism.
Txoj kev tshawb no kuj tau sim cov dej kho kev ua tau zoo ntawm silicon carbide ceramic ca daim nyias nyias: qhov nruab nrab tsis kam lees rau tag nrho cov coliforms thiab E. coli mus txog 99.9%. Ua ke nrog UV-C LED thev naus laus zis thiab cov thev naus laus zis ceramic, kev tua kab mob sib sib zog nqus ntawm daim nyias nyias tuaj yeem ua tiav, nrog rau qhov tsis ua haujlwm ntawm 99.985% lossis siab dua, ua kom pom tseeb ntawm daim ntawv thov kev siv thev naus laus zis no ua ke hauv thaj chaw ntawm kev tua kab mob zoo. Duab
5. Kev ua tau zoo ntawm nano-halloysite ceramic membranes hauv kev tshem tawm cov hmoov txhuas los ntawm cov dej qias neeg.
Phau ntawv Journal: Dej Science thiab Technology
Txoj kev tshawb no tau npaj cov ntaub so ntswg ceramic nanocomposite doped nrog halloysite nanotubes (HNTs) thiab manganese tetroxide (Mn₃O₄) nanoparticles thiab soj ntsuam lawv cov kev tshem tawm cov hlau lead hauv dej. Rau hom ceramic nanocomposite daim nyias nyias tau npaj los ntawm kev kho HNT cov ntsiab lus (75, 80, 85 wt.%) thiab sintering kub (900, 1000 degree), thaum khaws cov clinker ntxiv (8 wt.%) thiab Mn₃O₄ doping tas li.
Cov txiaj ntsig ntawm kev ntsuas dej ntws tau pom tias H85-900 daim nyias nyias (muaj 85% HNT, sintered ntawm 900 degree) muaj qhov zoo tshaj plaws permeability, nrog flux ntawm 390 L / (m²·h) ntawm 5 bar siab. Nyob rau hauv cov kev ntsuam xyuas ntawm synthesized lead-muaj aqueous daws teeb meem, H80-1000 membrane (muaj 80% HNT, sintered ntawm 1000 degree) qhia qhov siab tshaj plaws txhuas tshem tawm tus nqi, ncav cuag 99.84%. Hauv kev sim ntsuas dej hauv av tiag tiag, daim nyias nyias no tswj tau qhov kev tshem tawm siab ntawm 99.16%.
Txoj kev tshawb no tau tsim los ntawm Mn₃O₄ nanoparticles siv co- txoj kev los nag thiab ua ntau yam -dimensional characterization: Scanning electron microscopy (SEM) pom cov particle crystallization nrog qhov loj ntawm 30–40 nm; X-ray fluorescence spectroscopy (XRF) tau lees paub Mn₃O₄ purity ntawm 95.2%; X-ray diffraction (XRD) qhia txog tetragonal crystal system; thiab UV-Vis spectroscopy pom tus yam ntxwv nqus siab siab ntawm 220 nm (O²⁻-Mn²⁺/Mn³⁺ them hloov pauv) thiab 350 nm (d-d crystal field transition). Cov txiaj ntsig no qhia tau tias cov khoom siv ceramics siv cov khoom siv hauv zos halloysite muaj peev xwm siv tau zoo hauv kev kho cov hlau hnyav hauv kev kho dej.
