Periodate activation with manganese oxides for sulfanilamide degradation

Du, Jiangkun; Xiao, Guangfeng; Xi, Yanxing; Zhu, Xiaowei; Su, Fan; Kim, Sang Hoon

doi:10.1016/j.watres.2019.115278

Cited by 154 publications

(36 citation statements)

References 47 publications

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“…•− (E 0 = 2.5 − 3.1 V) [24,25]. The generation of 1 O 2 has been reported in a relatively broad pH range by various approaches (Figure 2a) including: (1) photosensitized excitation of triplet dioxygen [10,26]; (2) reaction of H 2 O 2 with NaClO [13]; (3) released from phosphite ozonides, bismuth oxides and some organic peroxides [12,15]; (4) proper activation of inorganic oxidants, such as PDS/PMS and periodate [7,14,27].…”

Section: Chemical Feature Of 1 O 2 and Its Oxidationmentioning

confidence: 99%

“…Photosensitizers including dyes, porphyrins, transition metal complexes and semiconductors act as the medium by transferring the light energy to ground dioxygen [10]. Other approaches to form 1 O 2 involve the use of chemicals like potassium perchromate [11], ozonide [12], H 2 O 2 -hypochlorous [13], periodate [14], and bismuth oxides [15]. But these processes have to use toxic sensitizers or consume too much bismuth precursors.…”

Section: Introductionmentioning

confidence: 99%

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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: Chemical Feature Of 1 O 2 and Its Oxidationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Xiao

Faheem

et al. 2021

IJERPH

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“…Of the various heterogeneous activator formulations available, transition metal-based activators have been recognized as particularly promising candidates for IO 4 − activation due to their encouraging activation performance and the low cost of the component metal elements. 3,6−8 Recent studies have demonstrated that iron-based bimetallic nanoparticles (nFe 0 -Ni and nFe 0 -Cu), 6 manganese oxides (MnO 2 , Mn 3 O 4 , and Mn 2 O 3 ), 7 and iron sulfide (FeS) 8 could efficiently activate IO 4…”

Section: Introductionmentioning

confidence: 99%

“…Of the various heterogeneous activator formulations available, transition metal-based activators have been recognized as particularly promising candidates for IO 4 – activation due to their encouraging activation performance and the low cost of the component metal elements. ,− Recent studies have demonstrated that iron-based bimetallic nanoparticles (nFe 0 -Ni and nFe 0 -Cu), manganese oxides (MnO 2 , Mn 3 O 4 , and Mn 2 O 3 ), and iron sulfide (FeS) could efficiently activate IO 4 – to generate reactive oxygen species (ROS). Despite the tremendous progress, the insufficient reaction kinetics and the occurrence of severe leaching of toxic metal ions under acidic and oxidative environments pose significant challenges for the practical implementation of IO 4 – activators .…”

Section: Introductionmentioning

confidence: 99%

Atomically Dispersed Cobalt Sites on Graphene as Efficient Periodate Activators for Selective Organic Pollutant Degradation

Long

Dai

Zhao

et al. 2021

Environ. Sci. Technol.

198

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Pollutant degradation via periodate (IO 4 − )-based advanced oxidation processes (AOPs) provides an economical, energy-efficient way for sustainable pollution control. Although single-atomic metal activation (SMA) can be exploited to optimize the pollution degradation process and understand the associated mechanisms governing IO 4 − -based AOPs, studies on this topic are rare. Herein, we demonstrated the first instance of using SMA for IO 4 − analysis by employing atomically dispersed Co active sites supported by N-doped graphene (N-rGO-CoSA) activators. N-rGO-CoSA efficiently activated IO 4 − for organic pollutant degradation over a wide pH range without producing radical species. The IO 4 − species underwent stoichiometric decomposition to generate the iodate (IO 3 − ) species. Whereas Co 2+ and Co 3 O 4 could not drive IO 4− activation; the Co−N coordination sites exhibited high activation efficiency. The conductive graphene matrix reduced the contaminants/electron transport distance/resistance for these oxidation reactions and boosted the activation capacity by working in conjunction with metal centers. The N-rGO-CoSA/IO 4 − system exhibited a substrate-dependent reactivity that was not caused by iodyl (IO 3• ) radicals. Electrochemical experiments demonstrated that the N-rGO-CoSA/IO 4 − system decomposed organic pollutants via electron-transfer-mediated nonradical processes, where N-rGO-CoSA/periodate* metastable complexes were the predominant oxidants, thereby opening a new avenue for designing efficient IO 4 − activators for the selective oxidation of organic pollutants.

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“…All these indicated the occurrence of interfacial reactions and the formation of MnO 2 . To show the redox characteristics of the prepared catalyst, the surface oxidation state of copper was also studied [37]. As can be seen from Figure 5b, the XPS peaks that are centered on 954.0 eV and 933.0 eV belong to Cu 2p 1/2 and Cu 2p 3/2 , respectively.…”

Section: Xps Analysismentioning

confidence: 99%

Enhancing the Low-Temperature CO Oxidation over CuO-Based α-MnO2 Nanowire Catalysts

et al. 2022

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A series of CuO-based catalysts supported on the α-MnO2 nanowire were facilely synthesized and employed as the CO oxidation catalysts. The achieved catalysts were systematically characterized by XRD, SEM, EDS-mapping, XPS and H2-TPR. The catalytic performances toward CO oxidation had been carefully evaluated over these CuO-based catalysts. The effects of different loading methods, calcination temperatures and CuO loading on the low temperature catalytic activity of the catalyst were investigated and compared with the traditional commercial MnO2 catalyst with a block structure. It was found that the slenderness ratio of a CuO/α-MnO2 nanowire catalyst decreases with the increase in CuO loading capacity. The results showed that when CuO loading was 3 wt%, calcination temperature was 200 °C and the catalyst that was supported by the deposition precipitation method had the highest catalytic activity. Besides, the α-MnO2 nanowire-supported catalysts with excellent redox properties displayed much better catalytic performances than the commercial MnO2-supported catalyst. In conclusion, the CuO-based catalysts that are supported by α-MnO2 nanowires are considered as a series of promising CO oxidation catalysts.

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Periodate activation with manganese oxides for sulfanilamide degradation

Cited by 154 publications

References 47 publications

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

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

Atomically Dispersed Cobalt Sites on Graphene as Efficient Periodate Activators for Selective Organic Pollutant Degradation

Enhancing the Low-Temperature CO Oxidation over CuO-Based α-MnO2 Nanowire Catalysts

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