1932ꢀ
YahuiꢀSunꢀetꢀal.ꢀ/ꢀChineseꢀJournalꢀofꢀCatalysisꢀ35ꢀ(2014)ꢀ1927–1936ꢀ
compositionꢀpropertiesꢀofꢀtheꢀsurfactant.ꢀInꢀcontrast,ꢀCO
2
ꢀwasꢀ
[9] WangꢀRꢀH,ꢀLiꢀJꢀH.ꢀCatalꢀLett,ꢀ2009,ꢀ131:ꢀ500ꢀ
[
[
[
[
10] TangꢀXꢀF,ꢀChenꢀJꢀL,ꢀHuangꢀXꢀM,ꢀXuꢀYꢀD,ꢀShenꢀWꢀJ.ꢀ ApplꢀCatalꢀB,ꢀ
mostlyꢀ generatedꢀ duringꢀ theꢀ calcinationꢀ ofꢀ HAPSC,ꢀ andꢀ theꢀ
smallerꢀSCꢀmoleculesꢀledꢀtoꢀtheꢀformationꢀofꢀsmallerꢀpores.ꢀ ꢀ
2008,ꢀ81:ꢀ115ꢀ
11] LiꢀCꢀY,ꢀShenꢀYꢀN,ꢀJiaꢀMꢀL,ꢀShengꢀSꢀS,ꢀAdebajoꢀMꢀO,ꢀZhuꢀHꢀY.ꢀCatalꢀ
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Technol,ꢀ2011,ꢀ45:ꢀ3628ꢀ
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4.ꢀ ꢀ Conclusionsꢀ
ModificationꢀofꢀHAPꢀwithꢀdifferentꢀorganicꢀmodifiersꢀ(CTAB,ꢀ
SDS,ꢀandꢀSC)ꢀresultedꢀinꢀdifferencesꢀinꢀtheꢀspecificꢀsurfaceꢀareaꢀ
andꢀporeꢀstructureꢀofꢀtheꢀfinalꢀmodifiedꢀHAPꢀsamples.ꢀModifi‐
cationꢀ withꢀ SCꢀ significantlyꢀ improvedꢀ theꢀ activityꢀ ofꢀ HAPꢀ to‐
wardsꢀHCHOꢀoxidation,ꢀwithꢀcompleteꢀconversionꢀachievedꢀatꢀ
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[15] SierraꢀP,ꢀChakrabartiꢀS,ꢀTounkaraꢀR,ꢀLorangerꢀS,ꢀKennedyꢀG,ꢀZayedꢀ
J.ꢀEnvironꢀRes,ꢀ1998,ꢀ79:ꢀ94ꢀ
[
[
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[
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5:ꢀ1119ꢀ
17] ZhaoꢀDꢀZ,ꢀDingꢀTꢀY,ꢀLiꢀXꢀS,ꢀLiuꢀJꢀL,ꢀShiꢀC,ꢀZhuꢀAꢀM.ꢀChinꢀJꢀCatal,ꢀ2012,ꢀ
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2
40ꢀ °C.ꢀ HAPSCꢀ featuredꢀ largerꢀ specificꢀ surfaceꢀ areaꢀ andꢀ poreꢀ
1
volumeꢀ thatꢀ enhancedꢀ theꢀ adsorptionꢀ capacityꢀ forꢀ HCHO,ꢀ
whereasꢀtheꢀsmallerꢀporesꢀaffordedꢀsufficientꢀtimeꢀforꢀinterac‐
tionꢀbetweenꢀtheꢀcatalystꢀandꢀreactionꢀgas.ꢀBesidesꢀtheꢀstruc‐
turalꢀdifferencesꢀthatꢀinfluencedꢀadsorptionꢀandꢀmassꢀtransfer,ꢀ
theꢀ contentꢀ ofꢀ hydroxylꢀ groupsꢀ thatꢀ isꢀ responsibleꢀ forꢀ HCHOꢀ
oxidationꢀ wasꢀ higherꢀ inꢀ theꢀ SC‐modifiedꢀ HAPꢀ sample.ꢀ Betterꢀ
adsorptionꢀproperties,ꢀlongerꢀretentionꢀtimes,ꢀandꢀlargerꢀcon‐
tentsꢀofꢀOHꢀgroupsꢀofꢀHAPSCꢀallꢀleadꢀtoꢀbetterꢀinteractionꢀbe‐
tweenꢀ theꢀ reactionꢀ gasꢀ andꢀ activeꢀ sitesꢀ ofꢀ theꢀ catalysts,ꢀ andꢀ
subsequentꢀ significantlyꢀ enhancedꢀ performanceꢀ ofꢀ HAPSCꢀ to‐
wardsꢀHCHOꢀoxidation.ꢀ
3
1
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418ꢀ
GraphicalꢀAbstractꢀ
Chin.ꢀJ.ꢀCatal.,ꢀ2014,ꢀ35:ꢀ1927–1936ꢀ ꢀ ꢀ doi:ꢀ10.1016/S1872‐2067(14)60129‐7
Formaldehydeꢀcatalyticꢀoxidationꢀoverꢀhydroxyapatiteꢀmodifiedꢀwithꢀvariousꢀorganicꢀmodifiersꢀ
ꢀ
YahuiꢀSun,ꢀZhenpingꢀQu*,ꢀDanꢀChen,ꢀHuiꢀWang,ꢀFanꢀZhang,ꢀQiangꢀFuꢀ
DalianꢀUniversityꢀofꢀTechnology;ꢀDalianꢀInstituteꢀofꢀChemicalꢀPhysics,ꢀChineseꢀAcademyꢀofꢀSciencesꢀ
3
2
2
00
50
00
1
00
100
80
60
40
20
0
0
.010
HAPBLANK
HAPSC
Specific surface area
Catalytic activity
0.008
8
6
4
2
0
0
0
0
0
0
0
.006
.004
150
00
0.002
.000
0
1
0
20
40
60
D/nm
80 100 120
HAPSC
5
0
0
HAPBLANK
0
.0
0.2
0.4
0.6
0.8
1.0
HAPBLANK
HAPSC
p/p
0
ꢀ
Betterꢀadsorptionꢀproperties,ꢀlongerꢀretentionꢀtimes,ꢀandꢀlargerꢀcontentsꢀofꢀOHꢀgroupsꢀofꢀhydroxyapatiteꢀmodifiedꢀwithꢀsodiumꢀcitrateꢀ
SC)ꢀ(HAPSC)ꢀleadꢀtoꢀbetterꢀinteractionꢀbetweenꢀtheꢀreactionꢀgasꢀandꢀactiveꢀsitesꢀandꢀhigherꢀactivityꢀtowardsꢀHCHOꢀoxidation.ꢀ
(