Kinetic analysis of free radical scavenging in sonochemistry

As an advanced oxidation process, high-power ultrasound produces free radicals in aqueous solution through acoustic cavitation. Whereas radical production inside the cavitation bubble is well understood, radical scavenging outside the bubble is still unexplored quantitatively. In this study, we mode...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Peng, Kewen [verfasserIn] Tian, Shouceng [verfasserIn] Zhang, Yiqun [verfasserIn] Qu, Wanjun [verfasserIn] Wang, Qianxi [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	Sonochemistry Radical scavenging Cavitation Bubble dynamics

Übergeordnetes Werk:	Enthalten in: Chemical engineering and processing - Amsterdam [u.a.] : Elsevier, 1984, 193
Übergeordnetes Werk:	volume:193

DOI / URN:	10.1016/j.cep.2023.109571

Katalog-ID:	ELV065430646

Internformat


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520			\|a As an advanced oxidation process, high-power ultrasound produces free radicals in aqueous solution through acoustic cavitation. Whereas radical production inside the cavitation bubble is well understood, radical scavenging outside the bubble is still unexplored quantitatively. In this study, we modeled the behavior of radicals in the scavenging process by solving the diffusion-advection-reaction equations. Using terephthalate as the scavenger, the principal reaction pathways of hydroxyl radicals are identified and the scavenging efficiency is quantified. The analysis shows that among the various reactions competing for hydroxyl radicals, the scavenging by terephthalate is in disadvantage for the small mass diffusivity. It limits the replenishment of scavengers to the reaction zone and compromises radical trapping efficiency. A parametric study puts the maximum radical trapping efficiency below 30%. Our study elucidates the key factor limiting the utilization of ultrasound-induced radicals and paves the way for future efforts to maximize the sonochemical effects.
650		4	\|a Sonochemistry
650		4	\|a Radical scavenging
650		4	\|a Cavitation
650		4	\|a Bubble dynamics
700	1		\|a Tian, Shouceng \|e verfasserin \|4 aut
700	1		\|a Zhang, Yiqun \|e verfasserin \|4 aut
700	1		\|a Qu, Wanjun \|e verfasserin \|4 aut
700	1		\|a Wang, Qianxi \|e verfasserin \|4 aut
773	0	8	\|i Enthalten in \|t Chemical engineering and processing \|d Amsterdam [u.a.] : Elsevier, 1984 \|g 193 \|h Online-Ressource \|w (DE-627)320508803 \|w (DE-600)2013149-5 \|w (DE-576)094504075 \|7 nnns
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author_variant	k p kp s t st y z yz w q wq q w qw
matchkey_str	pengkewentianshoucengzhangyiqunquwanjunw:2023----:ieiaayioferdclcvnig
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allfields	10.1016/j.cep.2023.109571 doi (DE-627)ELV065430646 (ELSEVIER)S0255-2701(23)00308-2 DE-627 ger DE-627 rda eng 660 VZ 58.17 bkl Peng, Kewen verfasserin (orcid)0000-0002-2778-4795 aut Kinetic analysis of free radical scavenging in sonochemistry 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier As an advanced oxidation process, high-power ultrasound produces free radicals in aqueous solution through acoustic cavitation. Whereas radical production inside the cavitation bubble is well understood, radical scavenging outside the bubble is still unexplored quantitatively. In this study, we modeled the behavior of radicals in the scavenging process by solving the diffusion-advection-reaction equations. Using terephthalate as the scavenger, the principal reaction pathways of hydroxyl radicals are identified and the scavenging efficiency is quantified. The analysis shows that among the various reactions competing for hydroxyl radicals, the scavenging by terephthalate is in disadvantage for the small mass diffusivity. It limits the replenishment of scavengers to the reaction zone and compromises radical trapping efficiency. A parametric study puts the maximum radical trapping efficiency below 30%. Our study elucidates the key factor limiting the utilization of ultrasound-induced radicals and paves the way for future efforts to maximize the sonochemical effects. Sonochemistry Radical scavenging Cavitation Bubble dynamics Tian, Shouceng verfasserin aut Zhang, Yiqun verfasserin aut Qu, Wanjun verfasserin aut Wang, Qianxi verfasserin aut Enthalten in Chemical engineering and processing Amsterdam [u.a.] : Elsevier, 1984 193 Online-Ressource (DE-627)320508803 (DE-600)2013149-5 (DE-576)094504075 nnns volume:193 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 58.17 Chemische Prozesstechnik VZ AR 193
spelling	10.1016/j.cep.2023.109571 doi (DE-627)ELV065430646 (ELSEVIER)S0255-2701(23)00308-2 DE-627 ger DE-627 rda eng 660 VZ 58.17 bkl Peng, Kewen verfasserin (orcid)0000-0002-2778-4795 aut Kinetic analysis of free radical scavenging in sonochemistry 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier As an advanced oxidation process, high-power ultrasound produces free radicals in aqueous solution through acoustic cavitation. Whereas radical production inside the cavitation bubble is well understood, radical scavenging outside the bubble is still unexplored quantitatively. In this study, we modeled the behavior of radicals in the scavenging process by solving the diffusion-advection-reaction equations. Using terephthalate as the scavenger, the principal reaction pathways of hydroxyl radicals are identified and the scavenging efficiency is quantified. The analysis shows that among the various reactions competing for hydroxyl radicals, the scavenging by terephthalate is in disadvantage for the small mass diffusivity. It limits the replenishment of scavengers to the reaction zone and compromises radical trapping efficiency. A parametric study puts the maximum radical trapping efficiency below 30%. Our study elucidates the key factor limiting the utilization of ultrasound-induced radicals and paves the way for future efforts to maximize the sonochemical effects. Sonochemistry Radical scavenging Cavitation Bubble dynamics Tian, Shouceng verfasserin aut Zhang, Yiqun verfasserin aut Qu, Wanjun verfasserin aut Wang, Qianxi verfasserin aut Enthalten in Chemical engineering and processing Amsterdam [u.a.] : Elsevier, 1984 193 Online-Ressource (DE-627)320508803 (DE-600)2013149-5 (DE-576)094504075 nnns volume:193 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 58.17 Chemische Prozesstechnik VZ AR 193
allfields_unstemmed	10.1016/j.cep.2023.109571 doi (DE-627)ELV065430646 (ELSEVIER)S0255-2701(23)00308-2 DE-627 ger DE-627 rda eng 660 VZ 58.17 bkl Peng, Kewen verfasserin (orcid)0000-0002-2778-4795 aut Kinetic analysis of free radical scavenging in sonochemistry 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier As an advanced oxidation process, high-power ultrasound produces free radicals in aqueous solution through acoustic cavitation. Whereas radical production inside the cavitation bubble is well understood, radical scavenging outside the bubble is still unexplored quantitatively. In this study, we modeled the behavior of radicals in the scavenging process by solving the diffusion-advection-reaction equations. Using terephthalate as the scavenger, the principal reaction pathways of hydroxyl radicals are identified and the scavenging efficiency is quantified. The analysis shows that among the various reactions competing for hydroxyl radicals, the scavenging by terephthalate is in disadvantage for the small mass diffusivity. It limits the replenishment of scavengers to the reaction zone and compromises radical trapping efficiency. A parametric study puts the maximum radical trapping efficiency below 30%. Our study elucidates the key factor limiting the utilization of ultrasound-induced radicals and paves the way for future efforts to maximize the sonochemical effects. Sonochemistry Radical scavenging Cavitation Bubble dynamics Tian, Shouceng verfasserin aut Zhang, Yiqun verfasserin aut Qu, Wanjun verfasserin aut Wang, Qianxi verfasserin aut Enthalten in Chemical engineering and processing Amsterdam [u.a.] : Elsevier, 1984 193 Online-Ressource (DE-627)320508803 (DE-600)2013149-5 (DE-576)094504075 nnns volume:193 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 58.17 Chemische Prozesstechnik VZ AR 193
allfieldsGer	10.1016/j.cep.2023.109571 doi (DE-627)ELV065430646 (ELSEVIER)S0255-2701(23)00308-2 DE-627 ger DE-627 rda eng 660 VZ 58.17 bkl Peng, Kewen verfasserin (orcid)0000-0002-2778-4795 aut Kinetic analysis of free radical scavenging in sonochemistry 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier As an advanced oxidation process, high-power ultrasound produces free radicals in aqueous solution through acoustic cavitation. Whereas radical production inside the cavitation bubble is well understood, radical scavenging outside the bubble is still unexplored quantitatively. In this study, we modeled the behavior of radicals in the scavenging process by solving the diffusion-advection-reaction equations. Using terephthalate as the scavenger, the principal reaction pathways of hydroxyl radicals are identified and the scavenging efficiency is quantified. The analysis shows that among the various reactions competing for hydroxyl radicals, the scavenging by terephthalate is in disadvantage for the small mass diffusivity. It limits the replenishment of scavengers to the reaction zone and compromises radical trapping efficiency. A parametric study puts the maximum radical trapping efficiency below 30%. Our study elucidates the key factor limiting the utilization of ultrasound-induced radicals and paves the way for future efforts to maximize the sonochemical effects. Sonochemistry Radical scavenging Cavitation Bubble dynamics Tian, Shouceng verfasserin aut Zhang, Yiqun verfasserin aut Qu, Wanjun verfasserin aut Wang, Qianxi verfasserin aut Enthalten in Chemical engineering and processing Amsterdam [u.a.] : Elsevier, 1984 193 Online-Ressource (DE-627)320508803 (DE-600)2013149-5 (DE-576)094504075 nnns volume:193 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 58.17 Chemische Prozesstechnik VZ AR 193
allfieldsSound	10.1016/j.cep.2023.109571 doi (DE-627)ELV065430646 (ELSEVIER)S0255-2701(23)00308-2 DE-627 ger DE-627 rda eng 660 VZ 58.17 bkl Peng, Kewen verfasserin (orcid)0000-0002-2778-4795 aut Kinetic analysis of free radical scavenging in sonochemistry 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier As an advanced oxidation process, high-power ultrasound produces free radicals in aqueous solution through acoustic cavitation. Whereas radical production inside the cavitation bubble is well understood, radical scavenging outside the bubble is still unexplored quantitatively. In this study, we modeled the behavior of radicals in the scavenging process by solving the diffusion-advection-reaction equations. Using terephthalate as the scavenger, the principal reaction pathways of hydroxyl radicals are identified and the scavenging efficiency is quantified. The analysis shows that among the various reactions competing for hydroxyl radicals, the scavenging by terephthalate is in disadvantage for the small mass diffusivity. It limits the replenishment of scavengers to the reaction zone and compromises radical trapping efficiency. A parametric study puts the maximum radical trapping efficiency below 30%. Our study elucidates the key factor limiting the utilization of ultrasound-induced radicals and paves the way for future efforts to maximize the sonochemical effects. Sonochemistry Radical scavenging Cavitation Bubble dynamics Tian, Shouceng verfasserin aut Zhang, Yiqun verfasserin aut Qu, Wanjun verfasserin aut Wang, Qianxi verfasserin aut Enthalten in Chemical engineering and processing Amsterdam [u.a.] : Elsevier, 1984 193 Online-Ressource (DE-627)320508803 (DE-600)2013149-5 (DE-576)094504075 nnns volume:193 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 58.17 Chemische Prozesstechnik VZ AR 193
language	English
source	Enthalten in Chemical engineering and processing 193 volume:193
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title_sort	kinetic analysis of free radical scavenging in sonochemistry
title_auth	Kinetic analysis of free radical scavenging in sonochemistry
abstract	As an advanced oxidation process, high-power ultrasound produces free radicals in aqueous solution through acoustic cavitation. Whereas radical production inside the cavitation bubble is well understood, radical scavenging outside the bubble is still unexplored quantitatively. In this study, we modeled the behavior of radicals in the scavenging process by solving the diffusion-advection-reaction equations. Using terephthalate as the scavenger, the principal reaction pathways of hydroxyl radicals are identified and the scavenging efficiency is quantified. The analysis shows that among the various reactions competing for hydroxyl radicals, the scavenging by terephthalate is in disadvantage for the small mass diffusivity. It limits the replenishment of scavengers to the reaction zone and compromises radical trapping efficiency. A parametric study puts the maximum radical trapping efficiency below 30%. Our study elucidates the key factor limiting the utilization of ultrasound-induced radicals and paves the way for future efforts to maximize the sonochemical effects.
abstractGer	As an advanced oxidation process, high-power ultrasound produces free radicals in aqueous solution through acoustic cavitation. Whereas radical production inside the cavitation bubble is well understood, radical scavenging outside the bubble is still unexplored quantitatively. In this study, we modeled the behavior of radicals in the scavenging process by solving the diffusion-advection-reaction equations. Using terephthalate as the scavenger, the principal reaction pathways of hydroxyl radicals are identified and the scavenging efficiency is quantified. The analysis shows that among the various reactions competing for hydroxyl radicals, the scavenging by terephthalate is in disadvantage for the small mass diffusivity. It limits the replenishment of scavengers to the reaction zone and compromises radical trapping efficiency. A parametric study puts the maximum radical trapping efficiency below 30%. Our study elucidates the key factor limiting the utilization of ultrasound-induced radicals and paves the way for future efforts to maximize the sonochemical effects.
abstract_unstemmed	As an advanced oxidation process, high-power ultrasound produces free radicals in aqueous solution through acoustic cavitation. Whereas radical production inside the cavitation bubble is well understood, radical scavenging outside the bubble is still unexplored quantitatively. In this study, we modeled the behavior of radicals in the scavenging process by solving the diffusion-advection-reaction equations. Using terephthalate as the scavenger, the principal reaction pathways of hydroxyl radicals are identified and the scavenging efficiency is quantified. The analysis shows that among the various reactions competing for hydroxyl radicals, the scavenging by terephthalate is in disadvantage for the small mass diffusivity. It limits the replenishment of scavengers to the reaction zone and compromises radical trapping efficiency. A parametric study puts the maximum radical trapping efficiency below 30%. Our study elucidates the key factor limiting the utilization of ultrasound-induced radicals and paves the way for future efforts to maximize the sonochemical effects.
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title_short	Kinetic analysis of free radical scavenging in sonochemistry
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up_date	2024-07-06T23:00:28.122Z
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fullrecord_marcxml	<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000naa a22002652 4500</leader><controlfield tag="001">ELV065430646</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20231104093141.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">231104s2023 xx \|\|\|\|\|o 00\| \|\|eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1016/j.cep.2023.109571</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)ELV065430646</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(ELSEVIER)S0255-2701(23)00308-2</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rda</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">660</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">58.17</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Peng, Kewen</subfield><subfield code="e">verfasserin</subfield><subfield code="0">(orcid)0000-0002-2778-4795</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Kinetic analysis of free radical scavenging in sonochemistry</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2023</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">As an advanced oxidation process, high-power ultrasound produces free radicals in aqueous solution through acoustic cavitation. Whereas radical production inside the cavitation bubble is well understood, radical scavenging outside the bubble is still unexplored quantitatively. In this study, we modeled the behavior of radicals in the scavenging process by solving the diffusion-advection-reaction equations. Using terephthalate as the scavenger, the principal reaction pathways of hydroxyl radicals are identified and the scavenging efficiency is quantified. The analysis shows that among the various reactions competing for hydroxyl radicals, the scavenging by terephthalate is in disadvantage for the small mass diffusivity. It limits the replenishment of scavengers to the reaction zone and compromises radical trapping efficiency. A parametric study puts the maximum radical trapping efficiency below 30%. 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Kinetic analysis of free radical scavenging in sonochemistry

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