Persulfate activation by oxidation biochar supported magnetite particles for tetracycline removal: Performance and degradation pathway

Pi, Zhoujie; Li, Xiaoming; Wang, Dongbo; Xu, Qiuxiang; Tao, Ziletao; Huang, Xiaoding; Yao, Fubing; Wu, You; He, Li; Yang, Qi

doi:10.1016/j.jclepro.2019.07.037

Cited by 237 publications

(49 citation statements)

References 58 publications

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“…The composite materials activate PMS/PDS with diverse active components so as to form multiple ROSs. Pi et al obtained OBC-Fe 3 O 4 via coating Fe 3 O 4 nanoparticles onto oxidized biochar (OBC) with better adsorption and pollutant degradation performance than Fe 3 O 4 and oxidized biochar [ 93 ]. A stable chemical bond was established between spherical Fe 3 O 4 and OBC.…”

Section: Evolution Of 1 O 2 mentioning

confidence: 99%

Evolution of Singlet Oxygen by Activating Peroxydisulfate and Peroxymonosulfate: A Review

Xiao

Faheem

et al. 2021

IJERPH

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Advanced oxidation processes (AOPs) based on peroxydisulfate (PDS) or peroxymonosulfate (PMS) activation have attracted much research attention in the last decade for the degradation of recalcitrant organic contaminants. Sulfate (SO4•−) and hydroxyl (•OH) radicals are most frequently generated from catalytic PDS/PMS decomposition by thermal, base, irradiation, transition metals and carbon materials. In addition, increasingly more recent studies have reported the involvement of singlet oxygen (1O2) during PDS/PMS-based AOPs. Typically, 1O2 can be produced either along with SO4•− and •OH or discovered as the dominant reactive oxygen species (ROSs) for pollutants degradation. This paper reviews recent advances in 1O2 generation during PDS/PMS activation. First, it introduces the basic chemistry of 1O2, its oxidation properties and detection methodologies. Furthermore, it elaborates different activation strategies/techniques, including homogeneous and heterogeneous systems, and discusses the possible reaction mechanisms to give an overview of the principle of 1O2 production by activating PDS/PMS. Moreover, although 1O2 has shown promising features such as high degradation selectivity and anti-interference capability, its production pathways and mechanisms remain controversial in the present literatures. Therefore, this study identifies the research gaps and proposes future perspectives in the aspects of novel catalysts and related mechanisms.

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Section: Evolution Of 1 O 2 mentioning

confidence: 99%

Evolution of Singlet Oxygen by Activating Peroxydisulfate and Peroxymonosulfate: A Review

Xiao

Faheem

et al. 2021

IJERPH

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“…These peaks correspond to the four indexed planes (311), (400), (511), and (440) of maghemite. They are characteristic peaks of Fe 3 O 4 (magnetite) [30], indicating that the main crystalline phase in MCS is magnetite and that Fe 3 O 4 was successfully loaded onto MCS [31].…”

Section: Characteristics Of Mcs and Csmentioning

confidence: 99%

Adsorption of aniline by magnetic biochar with high magnetic separation efficiency

Gu¹,

Xue

Zhang

2021

Environmental Pollutants and Bioavailability

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The coprecipitation method was used to produce magnetic cotton straw biochar (MCS). Elemental analysis, FTIR, XRD, SEM, BET and magnetization curves were used to characterize MCS and CS. The results show that the MCS had excellent magnetic separation properties. When the pH value was higher than 5, the pH of the aniline solution had little effect on the adsorption capacity of MCS and CS. However, with increasing temperature, the adsorption capacity increased significantly. The maximum adsorption capacities of MCS and CS for aniline were 38.67 mg/g and 42.57 mg/g, respectively. The adsorption process of aniline was spontaneous, endothermic, and involved monolayer sorption and chemical adsorption. The adsorption capacity was due to the presence in magnetic biochar of phenolic hydroxyls and H-bond donors that adsorbed aniline. Therefore, the application of MCS presents good prospects for the removal of toxic and refractory aniline from water.

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“…As a result, it could be preliminarily concluded that the generated h + and O 2 radicals in the proposed photocatalytic system should be responsible for the enhanced photo-oxidation performance towards MG and AO degradation. 55 Based on the results, a possible Z-scheme mechanism for the simultaneous photocatalytic degradation of MG and AO was proposed by Bi 2 WO 6 /Ag 2 S/ZnS (see Fig. 10).…”

Section: Photocatalytic Degradation Mechanism Studymentioning

confidence: 99%

A Bi₂WO₆/Ag₂S/ZnS Z-scheme heterojunction photocatalyst with enhanced visible-light photoactivity towards the degradation of multiple dye pollutants

et al. 2019

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Persulfate activation by oxidation biochar supported magnetite particles for tetracycline removal: Performance and degradation pathway

Cited by 237 publications

References 58 publications

Evolution of Singlet Oxygen by Activating Peroxydisulfate and Peroxymonosulfate: A Review

Evolution of Singlet Oxygen by Activating Peroxydisulfate and Peroxymonosulfate: A Review

Adsorption of aniline by magnetic biochar with high magnetic separation efficiency

A Bi₂WO₆/Ag₂S/ZnS Z-scheme heterojunction photocatalyst with enhanced visible-light photoactivity towards the degradation of multiple dye pollutants

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Persulfate activation by oxidation biochar supported magnetite particles for tetracycline removal: Performance and degradation pathway

Cited by 237 publications

References 58 publications

Evolution of Singlet Oxygen by Activating Peroxydisulfate and Peroxymonosulfate: A Review

Evolution of Singlet Oxygen by Activating Peroxydisulfate and Peroxymonosulfate: A Review

Adsorption of aniline by magnetic biochar with high magnetic separation efficiency

A Bi2WO6/Ag2S/ZnS Z-scheme heterojunction photocatalyst with enhanced visible-light photoactivity towards the degradation of multiple dye pollutants

Contact Info

Product

Resources

About

A Bi₂WO₆/Ag₂S/ZnS Z-scheme heterojunction photocatalyst with enhanced visible-light photoactivity towards the degradation of multiple dye pollutants