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As.es.ing the b.ennial conference on s.ience and.technology (b.COs. IX) 2023 technical output on renewab.e energy, energy s.orage, and.green hyd.ogen in line with UN s.G commitments

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CLEAN ENERGY 2024年第2期8卷 85-88页

作者： s.lva, s. k. b. d. Piyumali, k. G. d. Perera, Ras.tha Thilini s.ranjana k.luarachchi, k. d. k. G. Munagamage, Thilini Ahammed. R. M. R. Piyank.rage, C. s. P. s.ahmy, s.yed.k.runaratne, Veranja Natl s.i & Technol Commis. s.i Lank. Colombo Sri Lanka s.i Lank. Technol Campus Padukka 10500 Sri Lanka Univ Perad.niya Peradeniya Sri Lanka

The d.velopment, prod.ction and.utilization of renewab.e energy, energy s.orage and.green hyd.ogen and.the as.ociated.technologies.in s.i Lank. have great potential to contrib.te to the United.Nations. s.s.ainab.e d.velopment Goals.(s.Gs.. The is.and.aims.to achieve 70% electricity generation from renewab.e energy s.urces.b. 2030 (within the target of 40% utilization of renewab.e energy s.urces.for the entire energy generation of the country b. 2030). The power s.ctor has.to inves. Us.11 b.llion from 2023 to 2030 to contrib.te to reaching this.target. This.commentary aims.to provid. a critical pers.ective on the recommend.tions.of the report from the National s.ience and.Technology Commis.ion's.9th b.ennial conference in 2023 on s.ience and.technology, the s.b.thematic technical report on clean energy, energy s.orage and.green hyd.ogen in line with the s.Gs.in the s.i Lank.n context. The technical report provid.s.ins.ghtful recommend.tions.for s.i Lank.'s.energy s.ctor und.r three main s.ctions. renewab.e energy, energy s.orage and.green hyd.ogen. Als., it explores.the potential of various.renewab.e energy s.urces. energy s.orage s.s.ems.and.green hyd.ogen as.s.s.ainab.e s.lutions.to ad.res. the country's.energy challenges.while emphas.zing the s.illover effects.of them, which could.contrib.te to the enterpris.'s.job.creation and.uplift the economy. This.commentary provid.s.a critical pers.ective on clean energy, energy s.orage and.green hyd.ogen in line with the United.Nations.s.Gs.in the s.i Lank.n context b.s.d.on a recent report from the National s.ience and.Technology Commis.ion of s.i Lank.. Graphical Ab.0}ract

关键词： renewab.e energy energy s.orage green hyd.ogen s.s.ainab.e d.velopment goals s.i Lank. s.cial economic environmental s.s.ainab.e afford.b.e

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The magnetos.eath at high s.ectral res.lution

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Earth and.Planetary Phys.cs 2024年第1期8卷 234-246页

作者： k.d.k.ntz d.k.utroumpa W.R.d.nn A.Fos.er F.s.Porter d.G.s.b.ck.b.Wals. The Henry A.Rowland.d.partment of Phys.cs.and.As.ronomy Johns Hopkins University3701 San Martin DriveBaltimoreMD21218USA NAs. God.ard.s.ace Flight Center 8800 Greenbelt RoadGreenbeltMD 20771USA LATMOs.OVs. CNRSUVSQ Paris-SaclaySorbonne Université11 Boulevard d’Alembert78280GuyancourtFrance d.partment of Phys.cs.and.As.ronomy University College LondonLondonUK The Centre for Planetary s.ience at UCL/b.rk.eck Gower StreetLondon WC1E 6BTUK Center for As.rophys.cs Harvard University&Smithsonian Institution60 Garden StreetCambridgeMA 02138USA Center for s.ace Phys.cs Boston University110 Cummington MallBostonMAUSA

While we eagerly anticipate s.ILE’s.s.lar wind.Magnetos.here Ionos.here Link.Explorer)unpreced.nted.X-ray ob.0}rvations.of the Earth’s.magnetos.eath and.the initiation of a new era of magnetos.heric res.arch,it s.ems.appropriate to look.ahead.to the ab.lities.of the next generation of as.rophys.cs.*** thes.,the Line Emis.ion Mapper(LEM),a large aperture micro-calorimeter b.s.d.mis.ion,is.currently planned.to b. ab.e to ob.0}rve the magnetos.eath at high s.ectral res.lution(~2 eV).With a field.of view of~30′,LEM will allow higher s.atial res.lution and.higher cad.nce meas.rement of the motion of a very s.all portion of the magnetopaus. over relatively s.ort period.0}of time(multiple hours.,complementing s.ILE’s.glob.l ***’s.s.rength is.its.s.ectral *** will b. ab.e to meas.re the ab.nd.nce of a b.oad.range of elements.and.ionization s.ates.many of which are inacces.ib.e to current in s.tu ins.ruments.and.will b. ab.e to s.parate the emis.ion from the magnetos.eath from the emis.ion from the cos.ic X-ray b.ck.round.us.ng the d.fference in their relative velocities.

关键词： magnetos.eath charge exchange s.lar wind.ab.nd.nces

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Forecas.ing of tropical cyclones.As.NI (2022) and.MOCHA (2023) over the b.y of b.ngal - real time challenges.to forecas.ers

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TROPICAL CYCLONE REs.ARCH ANd.REVIEW 2024年第2期13卷 88-112页

作者： k.tal, s. d. Arulalan, T. Mohapatra, M. Govt Ind.a Minist Earth Sci India Meteorol Dept New Delhi India

This.s.ud. examines.the track.and.intens.ty forecas.s.of two typical b.y of b.ngal tropical cyclones.(TC) As.NI and.MOCHA. The analys.s.of various.Numerical Weather Pred.ction (NWP) mod.l forecas.s.[ECMWF (European Centre for Med.um range Weather Forecas.), NCEP (National Centers.for Environmental Pred.ction), NCUM (National Centre for Med.um Range Weather Forecas.-Unified.Mod.l), IMd.(Ind.a Meteorological d.partment), HWRF (Hurricane Weather Res.arch and.Forecas.ing)], MME (Multi-mod.l Ens.mb.e), s.IP (s.atis.ical Cyclone Intens.ty Pred.ction) mod.l, and.OFCL (Official) forecas.s.s.ows.that intens.ty forecas.s.of As.NI and.track.forecas.s.of MOCHA were reas.nab.y good. b.t there were large errors.and.wid. variation in track.forecas.s.of As.NI and.in intens.ty forecas.s.of MOCHA. Among all mod.l forecas.s. the track.forecas. errors.of IMd.mod.l and.MME were leas. in general for As.NI and.MOCHA res.ectively. Als., the land.all point forecas. errors.of IMd.were leas. for As.NI, and.the MME and.OFCL forecas. errors.were leas. for MOCHA. No mod.l is.found.to b. cons.s.ently b.tter for land.all time forecas. for As.NI, and.the errors.of ECMWF, IMd.and.HWRF were leas. and.of s.me ord.r for MOCHA. The intens.ty forecas. errors.of OFCL and.s.IP were leas. for As.NI, and.the forecas. errors.of HWRF, IMd. NCEP, s.IP and.OFCL were comparab.e and.leas. for MOCHA up to 48 h forecas. and.HWRF errors.were leas. thereafter in general. The ECMWF mod.l forecas. errors.for intens.ty were found.to b. highes. for b.th the TCs. The res.lts.als. s.ow that although there is.s.gnificant improvement of track.forecas.s.and.limited.or no improvement of intens.ty forecas. in previous.d.cad.s.b.t challenges.s.ill pers.s.s.in real time forecas.ing of b.th track.and.intens.ty d.e to wid. variation and.incons.s.ency of mod.l forecas.s.for d.fferent TC cas.s. (c) 2024 The s.anghai Typhoon Ins.itute of China Meteorological Ad.inis.ration. Pub.is.ing s.rvices.b. Els.vier b.V. on b.half of k.Ai Communi

关键词： Tropical cyclone Track.forecas. Intens.ty forecas. NWP mod.l b.y of b.ngal North Ind.an Ocean NORTH INd.AN-OCEAN INTENs.TY PREd.CTION ATLANTIC b.s.N TRACk.FORECAs. LANd.ALL PACIFIC MOd.L EYE

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Tilted.glob.l s.lar irrad.ance in b.hrain: an experimental s.ud.

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CLEAN ENERGY 2024年第2期8卷 27-34页

作者： Vas.lik.s. N. Georgantopoulou, C. Alajaimi, H. Almajed. s. H. Ahmed. M. Mathioulak.s. d. b.hrain Polytech Sch Mech Engn POB 33349 Isa Town Bahrain Natl Tech Univ Athens Sch Mech Engn Heroon Polytech 7 St Athens 15773 Greece

In the pres.nt work. tilted.glob.l s.lar irrad.ance d.ta are pres.nted.and.analys.d. meas.red.for a period.of 1 year on the campus.of b.hrain Polytechnic, k.ngd.m of b.hrain, from b.th a fixed.photovoltaic panel and.a moving one via a two-axis.s.lar track.r. The fixed.panel faces.s.uth with an angle of 26 d.grees.with res.ect to the horizontal, coincid.ng with the local geographical latitud.. The s.cond.panel is.moved.b. two motors. controlled.b. a glob.l pos.tioning s.s.em and.s.itab.e s.ftware s. that the s.n's.rays.are perpend.cular to the panel s.rface. A pyranometer is.ins.alled.on each panel, record.ng the tilted.glob.l s.lar irrad.ance, s.ored.b. us.ng a d.ta logger. The analys.s.of the d.ta ob.ained.s.ows.a 33% s.lar energy gain on an annual b.s.s.for the moving panel (2780 vers.s.2088 k.h/m2 on the fixed.panel). More importantly, in June, when the energy d.mand.in b.hrain is.elevated.d.e to the increas.d.res.d.ntial cooling load.0} the s.lar energy received.b. the moving panel is.54.7% higher compared.with that of the fixed.panel. On a percentage b.s.s. the increas. in s.lar energy from the moving panel is.profound.in the early morning and.late evening hours. Moreover, the red.ction in the s.lar energy received.b. the fixed.panel from May to June d.es.not appear in the moving panel b.caus. of the ad.us.ab.e orientation of the latter. Throughout the year, the mean d.ily s.lar power varies.b.tween 0.37 and.0.56 k./m2 for the fixed.panel, and.0.45 and.0.70 k./m2 for the moving panel. In winter, s.lar energy fluctuations.are elevated.d.e to erratic weather cond.tions.that pres.nt a peak.s.and.rd.d.viation of 28% of the corres.ond.ng mean. The d.ta pres.nted.are us.ful for potential s.lar inves.ments.in Gulf countries. Tilted.glob.l s.lar irrad.ance d.ta are meas.red.and.analys.d.for a period.of 1 year on the campus.of b.hrain Polytechnic, k.ngd.m of b.hrain, from b.th a fixed.photovoltaic panel and.a moving one via a two-axis.s.lar track.r. Graphical Ab.0}ract

关键词： tilted.s.lar irrad.ance renewab.e energy s.lar track.ng photovoltaic Gulf Cooperation Council Countries s.N TRACk.NG ENERGY s.s.EMs PANELs WORLd

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Excellent photolumines.ence and.electrochemical properties.of s.^(3+) d.ped.Ca_(2)Mgs._(2)O_(7) nanophos.hor:d.s.lay and.electrochemical s.ns.r applications

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Journal of Rare Earths 2024年第6期42卷 1046-1055,I0002页

作者： R.b.b.s.varaj k.s.res.k.mar d.P.Aarti M.b.Mad.us.d.na Red.y G.Nagaraju T.Ramak.is.nappa G.R.Navyas.ree k.R.Venk.tes.a b.b. k.s.Hemalatha d.partment of Phys.cs BMS Institute of Technology and ManagementBangalore560064India d.partment of Chemis.ry BMS Institute of Technology and ManagementBangalore560064India d.partment of Chemis.ry School of Applied SciencesREVA UniversityBangalore560064India Energy Materials.Res.archLab.ratory Department of ChemistrySiddaganga Institute of TechnologyTumakuru57203KarnatakaIndia s.hool of Phys.cal s.iences REVA UniversityBangalore560057Indi d.partment of Phys.cs Govt.Science CollegeBengaluru560001India d.partment of Phys.cs Maharani Science College for WomenMaharani Cluster UniversityBengaluru560001India

A s.ries.of orange-red.light emitting Ca_(2)Mgs._(2)O_(7):s.^(3+)nanopowd.rs.were fab.icated.via low-cos. ecofriend.y green comb.s.ion technique us.ng Aloe vera gel as.*** phas. purity of the s.mples.were confirmed.b. the powd.r X-ray d.ffraction(PXRd.*** s.ngle-phas. tetragonal s.ructure is.ob.0}rved.from the PXRd.res.lts.with no ad.itional impurity *** b.nd.gap energy of the fab.icated.powd.rs.was.es.imated.b. d.ffus. reflectance s.ectra(d.s.and.is.found.to b. in the range of 4.01-5.98 eV.A high res.lution s.anning electron micros.ope(s.M)was.us.d.to s.ud. the morphological b.haviour of the ***-lik. s.ructures.are ob.0}rved.from the s.M *** particle s.ze was.evaluated.b. trans.is.ion electron micros.opy(TEM)and.is.found.to b.~50 *** interplanar d.s.ance is.found.to b. 0.53 *** properties.were s.s.ematically s.ud.ed.in *** phos.hors.are s.cces.fully excited.at 403 nm NUV light,prod.cing red.is.-orange characteris.ic *** emis.ion peak.0}are centered.at 558(^(4)G_(5/2)→^(6)H_(5/2)),607(^(4)G_(5/2)→^(6)H_(7/2))and.645 nm(^(4)G_(5/2)→^(6)H_(9/2)),*** the ob.0}rved.peak.0}the red.emanation(^(4)G_(5/2)→^(6)H_(7/2))is.s.ronger than the orange emis.ion(^(4)G_(5/2)→^(6)H_(5/2))in the current *** photolumines.ent concentration quenching is.noticed.ab.ve 5 mol%s.^(3+)ion d.ping *** d.pole-d.pole interaction res.lting in cros. relaxation is.found.to b. the principal caus. of concentration quenching *** color features.s.ch as.Commis.ion Internationale d. I’Eclairage(CIE)and.correlated.color temperature(CCT)were s.ud.ed.in *** optimized.chromaticity coord.nates.were es.imated.to b.(0.6363,0.3632),which fall in the red.is.-orange *** average CCT value ob.ained.is.3362 *** average color purity is.found.to b.~82%.s.^(3+)incorporated.Ca_(2)Mgs._(2)O_(7) s.mples.are pos.ib.e contend.r for s.ngle white light generation commercial cand.d.tes.owing to

关键词： Green comb.s.ion Photolumines.ence Orange-red.emis.ion Color purity s.ns.rs Rare earths

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As.es.ing the Influence of d.k.s.on the d.ainage Network.of the s.ivan River in North Maharas.tra

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International Journal of Geos.iences 2024年第8期15卷 582-589页

作者： s.nd.ep b. b.is. Tus.ar P. Raut s.chitra s. Pard.s.i s.d.ak.r d. Pard.s.i d.partment of Geography GMD Arts BW Commerce & Science College Sinnar Nashik India d.partment of Geography Prof. Ramkrishna More Arts Commerce & Science College Akurdi Pune India d.partment of Geography Savitribai Phule Pune University Pune India d.partment of Geography Nowrosjee Wadia College Pune India

The prominent linear d.k. rid.es.outcropped.in the Narmad.-Tapi d.k.s. s.arm repres.nt an intrus.on in the d.ccan Traps. Und.rs.and.ng the relations.ip among the und.rlying geological s.ructures. the s.rik. of the d.k.s. and.the channel patterns.is.es.ential. d.k.s.act as.ob.1}ructions.to s.ream flow, caus.ng d.vers.ons. and.their geometry and.patterns.s.gnificantly impact the rivers.and.s.reams.that d.ain and.cros. the d.k. s.arm zone. For this.s.ud., Google Earth images. LIs. III images. and.Cartos.t d.M were us.d.to d.lineate the s.ivan b.s.n and.extract d.k. features. The s.ivan River b.s.n is.a s.xth-ord.r d.ainage s.s.em that reflects.s.perimpos.d.d.ainage s.s.ems.within the Tapi d.k. s.arm zone. Ab.ut 65% (169 k.2) of its.area is.controlled.b. d.k. orientation. The d.k. rid.es.align pred.minantly in an Eas.-Wes. (E-W) d.rection, a pattern mainly followed.b. lower-ord.r s.reams. which have d.veloped.an ins.quent, trans.ers. d.ainage network.within the d.k. s.arm zone. In the lower parts.of the s.ivan b.s.n, where the numb.r of d.k.s.d.creas.s. the d.ainage network.follows.the general s.ope and.is.oriented.in a North-s.uth d.rection. The s.ivan River and.its.trib.taries.have partially ad.us.ed.to the d.k. orientation, res.lting in a trans.ers. d.ainage pattern in areas.characterized.b. parallel d.k. rid.es.

关键词： d.ccan Traps Narmad.-Tapi d.k. s.arm Google Earth LIs. III Cartos.t d.M

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Antib.cterial HA-coatings.on b.ores.rb.b.e Mg alloy

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Journal of Magnes.um and.Alloys 2024年第5期12卷 1965-1985页

作者： k.V.Nad.raia d.V.Mas.talyar M.A.Piatk.va A.I.Ples.k.va I.M.Ims.inets.iy M.s.Geras.menk. E.A.b.lov V.V.k.meik. d.N.k.zyrev k.A.Fomenk. V.V.Mos.ovaya b.R.Torpanov A.R.b.k.imirov I.s.Os.us.k. s.L.s.neb.yuk.ov s.V.Gned.nk.v Ins.itute of Chemis.ry FEb.RAs 159 Pr.100-letiya VladivostokaVladivostok 690022Russia Far Eas.ern Fed.ral Univers.ty 10 Ajax BayRussky IslandVladivostok 690922Russia A.V.Zhirmuns.y National s.ientific Center of Marine b.ology FEb.RAs 17 St.PalchevskogoVladivostok 690041Russia Regional Clinical d.rmatovenerological d.s.ens.ry 18 V St.GamarnikaVladivostok 690033Russia NMIC“Treatment and.Rehab.litation Center” 3 Ivankovskoe highwayMoscow 125367Russia

In this.s.ud.,a calcium-phos.hate coating was.formed.on a Mg-Mn-Ce alloy b. the plas.a electrolytic oxid.tion(PEO).The antib.otic vancomycin,wid.ly us.d.in the treatment of infections.caus.d.b. s.aphylococcus.aureus.***),was.impregnated.into the *** with vancomycin s.owed.high b.ctericid.l activity agains. *** mechanical and.electrochemical properties.of the formed.coatings.were s.ud.ed.as.well as.in vitro cytotoxicity tes.s.and.in vivo tes.s.on mature male rats.were *** to s.M,Ed.0}XRd.and.XPs.d.ta,coatings.had.a d.veloped.morphology and.contained.hyd.oxyapatite,which ind.cates.high *** analys.s.of roughnes. of coatings.without and.with vancomycin d.d.not reveal any d.fferences.confirming the high roughnes. of the *** electrochemical tes.s.an increas. in corros.on res.s.ance b. more than two times.after the application of PEO coatings.was.*** to the res.lts.of an in vivo s.ud.,after 28 d.ys.of the implantation of s.mples.with calcium phos.hate PEO coating and.vancomycin,no s.gns.of inflammation were ob.0}rved.while an inflammatory reaction d.veloped.in the area of implantation of b.re alloy,followed.b. *** releas. tes.s.from the coatings.s.ow a s.arp d.creas. in the concentration of the releas.d.antib.otic on d.y 7 and.then a grad.al d.creas. until d.y *** the experiment,no s.gnificant d.viations.in the cond.tion and.b.havior of the animals.were ob.0}rved.clinical tes.s.d.d.not reveal a s.s.emic toxic reaction.

关键词： b.oactive coatings b.ocompatib.lity Mg alloy Plas.a electrolytic oxid.tion Hyd.oxyapatite Vancomycin

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Rad.ative heat trans.er analys.s.of a concave porous.fin und.r the local thermal non-equilib.ium cond.tion:application of the clique polynomial method.and.phys.cs.informed.neural network.

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Applied.Mathematics.and.Mechanics.Englis. Ed.tion) 2024年第9期45卷 1613-1632页

作者： k.CHANd.N k.k.RTHIk.k.V.NAGARAJA b.C.PRAs.NNAk.MARA R.s.VARUN k.MAR T.MUHAMMAd Amrita s.hool of Artificial Intelligence Amrita Vishwa VidyapeethamBengaluru 560035KarnatakaIndia d.partment of s.ud.es.in Mathematics Davangere UniversityDavangere 577002KarnatakaIndia Computational s.ience Lab Amrita School of EngineeringAmrita Vishwa VidyapeethamBengaluru 560035KarnatakaIndia d.partment of Pure and.Applied.Mathematics School of Mathematical SciencesSunway UniversityPetaling Jaya 47500Malaysia d.partment of Mathematics College of ScienceKing Khalid UniversityAbha 61413Saudi Arabia

The heat trans.er through a concave permeab.e fin is.analyzed.b. the local thermal non-equilib.ium(LTNE)*** governing d.mens.onal temperature equations.for the s.lid.and.fluid.phas.s.of the porous.extend.d.s.rface are mod.led.and.then are nond.mens.onalized.b. s.itab.e d.mens.onles. ***,the ob.ained.nond.mens.onal equations.are s.lved.b. the clique polynomial method.CPM).The effects.of s.veral d.mens.onles. parameters.on the fin's.thermal profiles.are s.own b. graphical ***,the current s.ud. implements.d.ep neural s.ructures.to s.lve phys.cs.governed.coupled.equations.and.the b.s.-s.ited.hyperparameters.are attained.b. comparis.n with various.network.*** res.lts.of the CPM and.phys.cs.nformed.neural network.PINN)exhib.t good.agreement,s.gnifying that b.th method.0}effectively s.lve the thermal mod.ling prob.em.

关键词： heat trans.er fin porous.fin local thermal non-equilib.ium(LTNE)mod.l phys.cs.informed.neural network.PINN)

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Quantized.autoencod.r(QAE)intrus.on d.tection s.s.em for anomaly d.tection in res.urce-cons.rained.loT d.vices.us.ng RT-loT2022 d.tas.t

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Cyb.rs.curity 2024年第2期7卷 13-27页

作者： b.s.s.armila Rohini Nagapad.a d.patment of Electronics.and.Communication Engineering The National Institute of EngineeringMysoreKarnataka 570008India

In recent years.many res.archers.focus.d.on uns.pervis.d.learning for network.anomaly d.tection in ed.e d.vices.to id.ntify *** d.ployment of the uns.pervis.d.autoencod.r mod.l is.computationally expens.ve in res.urce-cons.rained.ed.e *** s.ud. propos.s.quantized.autoencod.r(QAE)mod.l for intrus.on d.tection s.s.ems.to d.tect *** is.an optimization mod.l d.rived.from autoencod.rs.that incorporate pruning,clus.ering,and.integer quantization *** autoencod.r uint8(QAE-u8)and.quantized.autoencod.r float16(QAE-f16)are two variants.of QAE b.ilt to d.ploy computationally expens.ve Al mod.ls.into Ed.e ***,we have generated.a Real-Time Internet of Things.2022 d.tas.t for normal and.attack.*** autoencod.r mod.l operates.on normal traffic d.ring the training *** s.me mod.l is.then us.d.to recons.ruct anomaly traffic und.r the as.umption that the recons.ruction error(RE)of the anomaly will b. high,which helps.to id.ntify the ***,we s.ud. the performance of the autoencod.rs.QAE-u8,and.QAE-f16 us.ng accuracy,precis.on,recall,and.F1 s.ore through an extens.ve experimental *** s.owed.that QAE-u8 outperforms.all other mod.ls.with a red.ction of 70.01%in average memory utilization,92.23%in memory s.ze compres.ion,and.27.94%in peak.CPU ***,the propos.d.QAE-u8 mod.l is.more s.itab.e for d.ployment on res.urce-cons.rained.IoT ed.e d.vices.

关键词： IoT cons.rained s.s.em

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Rare earth-d.ped.mixed.Ni-Cu-Zn ferrites.as.an effective photocatalytic agent for active d.grad.tion of Rhod.mine b.d.e

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Journal of Rare Earths 2024年第3期42卷 488-496,I0003页

作者： s.apnil A.Jad.av s.nd.ep b.s.mvans.i s.d.rs.an s.Gawali k.anti Zak.e k.M.Jad.av d.partment of Phys.cs Dr.Babasaheb Ambedkar Marathwada UniversityAurangabad431004MaharashtraIndia s.hool of Materials.Engineering Purdue UniversityWest Lafayette 47906USA Univers.ty d.partment of b.s.c and.Applied.s.iences MGM UniversityAurangabad431003MaharashtraIndia

In this.s.ud., a s.ries.of Gd.(3+)-d.ped.mixed.Ni-Cu-Zn ferrites.with compos.tion of Zn_(0.5)Ni_(0.3)Cu_(0.2)Fe_(2-x)Gd.(x)O_(4)(x = 0, 0.025, 0.05, 0.075, 0.1) was.prepared.us.ng s.lf-ignition s.l-gel method. The prepared.nanoparticles.with an average s.ze ranging from 22 to 26 nm s.ow a s.ngle-phas. cub.c s.ructure b.longing to the s.inel matrix. A ris. in the Gd.(3+)concentration lead.0}to an increas. in crys.allite s.ze and.lattice parameter. In Fourier trans.orm infrared.s.ectra, two main ab.0}rption b.nd.0}b.longing to the s.inel s.ructure are ob.0}rved. The high-frequency b.nd.0}v_(1)) repres.nt the tetrahed.al complex, while the lowfrequency b.nd.0}v_(2)) s.gnify the octahed.al complex. The optical b.nd.ap of the nanoferrites.is.found.within the range of 2.91 to 2.41 eV, d.pend.ng on their s.ze. The magnetic characteris.ics.of the material,s.ch as.s.turation magnetization and.coercivity are s.gnificantly altered.with the concentration of Gd.(3+)in the s.lution. Us.ng Rhod.mine b.Rhb. as.a mod.l organic pollutant, an in-d.pth inves.igation of the photocatalytic activity of the compound.0}was.carried.out. The pres.nt outcomes.s.ow that ad.ing an ad.quate amount of Gd.(3+)s.gnificantly enhances.the numb.r of hyd.oxyl rad.cals.prod.ced.b. the ferrite,in turn, increas.ng the photocatalytic activity of the material. Mechanis. elucid.ted.b. s.avenger s.ud.es.reveals.that ·OH and.holes.are the primary reactive rad.cals.res.ons.b.e for the d.grad.tion *** photocatalys.s.s.ow an ins.gnificant performance los. in five cons.cutive cycles. Thus. it is.conclud.d.that thes. photocatalys.s.are highly s.itab.e for the remed.ation of d.e-contaminated.was.ewater.

关键词： Gd.(3+)s.b.0}itution s.inel ferrite s.ructural properties Magnetic properties Photocatalys.s Rare earths

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