Catalytic degradation of p-nitrophenol by magnetically recoverable Fe3O4 as a persulfate activator under microwave irradiation

Hu, Lianzhe; Wang, Peng; Liu, Guoshuai; Zheng, Qingzhu; Zhang, Guangshan

doi:10.1016/j.chemosphere.2019.124977

Cited by 96 publications

(27 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Compared to the OH radical, the SO 4 radical has a longer shelf life, has a wider pH range of action, proved to be more stable and effective in oxidation for water decontamination [26,27]. Furthermore, some studies suggest that after the generation of the SO 4 radical, it may react with several species in solution to form other active species, such as the OH radical, which will play a key role in the pollutant degradation process [24,27].…”

Section: Persulfate Based Processesmentioning

confidence: 99%

Advanced Oxidation Processes Coupled with Nanomaterials for Water Treatment

Cardoso

Silva

2021

Nanomaterials

View full text Add to dashboard Cite

Water quality management will be a priority issue in the near future. Indeed, due to scarcity and/or contamination of the water, regulatory frameworks will be increasingly strict to reduce environmental impacts of wastewater and to allow water to be reused. Moreover, drinking water quality standards must be improved in order to account for the emerging pollutants that are being detected in tap water. These tasks can only be achieved if new improved and sustainable water treatment technologies are developed. Nanomaterials are improving the ongoing research on advanced oxidation processes (AOPs). This work reviews the most important AOPs, namely: persulfate, chlorine and NH2Cl based processes, UV/H2O2, Fenton processes, ozone, and heterogeneous photocatalytic processes. A critical review of the current coupling of nanomaterials to some of these AOPs is presented. Besides the active role of the nanomaterials in the degradation of water contaminants/pollutants in the AOPs, the relevance of their adsorbent/absorbent function in these processes is also discussed.

show abstract

Section: Persulfate Based Processesmentioning

confidence: 99%

Advanced Oxidation Processes Coupled with Nanomaterials for Water Treatment

Cardoso

Silva

2021

Nanomaterials

View full text Add to dashboard Cite

show abstract

“…Conventional treatments used in industries aren't completely effective in removing NFs (Hu et al 2020).…”

Section: Introductionmentioning

confidence: 99%

“…These technologies are unable to degrade or mineralize complex organic components (Mukherjee et al 2020) with high mobility and low biodegradability in high concentrations (Hu et al 2020). In addition, phenol removal processes, which involve sorption and biodegradation, are slow and, in some cases, inefficient (Ren et al 2017;Zhang et al 2017;Jiang et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Optimization of parameters applied to degradation and mineralization of p-nitrophenol using advanced oxidative processes

Santolin

Tochetto

Dervanoski

et al. 2021

Preprint

View full text Add to dashboard Cite

Advanced oxidative processes are widely used in the degradation of organic compounds. The degradation and mineralization of the PNF was evaluated by means of an experimental factorial design, using photolysis (UV) and photo-peroxidation (UV/H2O2). With the results optimized, degradation kinetics was performed and the experimental data adjusted to mathematical models. In the UV system, it was possible to degrade just over 65% and mineralize 15% over 7 h of reaction; however, with the addition of the oxidizing agent H2O2, it was possible to obtain 100% removal of the contaminant, suggesting that there was no formation of intermediate compounds. Kinetics results fitting the first order model and the velocity constants revealed that degradation is extremely faster in the UV/H2O2 system (k1,UV/H2O2 = 0.0580 min− 1 > k1,UV = 0.0018 min− 1).

show abstract

“…Magnetic micro/nanoparticles are widely employed in various fields [1][2][3][4]. Fe 3 O 4 , a beneficial functional magnetic material, has attracted increased attention because of its excellent properties [5,6]. Therefore, various synthetic methods have been developed to prepare Fe 3 O 4 micro/nanostructures (MNSs) with different morphologies and sizes.…”

Section: Introductionmentioning

confidence: 99%

“…Further research is required to identify the exact cause of the high M s of the self-assembled Fe 3 O 4 HMSs. However, because of its excellent magnetic properties, it was possible to study its application as a magnetic-separable catalyst.In previous studies, the iron-based compounds can be applied to organic catalysis[1,3,6,64,65]. Because the selfassembled Fe 3 O 4 HMSs displayed good magnetic properties, it could be employed as a magnetic recyclable catalyst.…”

mentioning

confidence: 99%

Self-assembled multifunctional Fe3O4 hierarchical microspheres: high-efficiency lithium-ion battery materials and hydrogenation catalysts

Ling

Zeng

et al. 2020

Sci. China Mater.

View full text Add to dashboard Cite

Self-assembled Fe 3 O 4 hierarchical microspheres (HMSs) were prepared by a one-pot synchronous reductionself-assembling (SRSA) hydrothermal method. In this simple and inexpensive synthetic process, only glycerol, water, and a single iron source (potassium ferricyanide (K 3 [Fe(CN) 6 ])) were employed as reactants without additional reductants, surfactants, or additives. The iron source, K 3 [Fe(CN) 6 ], and glycerol significantly affected the synthesis of Fe 3 O 4 HMSs. Fe 3 O 4 HMSs with a self-assembled spherical shape readily functioned as high-performance anode materials for lithiumion batteries with a specific capacity of > 1000 mA h g −1 at 0.5 A g −1 after 270 cycles. Further charging and discharging results revealed that Fe 3 O 4 HMSs displayed good reversible performance (> 1000 mA h g −1 ) and cycling stability (700 cycles) at 0.5 A g −1 . Furthermore, as multifunctional materials, the as-obtained Fe 3 O 4 HMSs also exhibited high saturation magnetization (99.5 emu g −1 ) at room temperature (25°C) and could be further employed as efficient and magnetically recyclable catalysts for the hydrogenation of nitro compounds.

show abstract

Catalytic degradation of p-nitrophenol by magnetically recoverable Fe3O4 as a persulfate activator under microwave irradiation

Cited by 96 publications

References 49 publications

Advanced Oxidation Processes Coupled with Nanomaterials for Water Treatment

Advanced Oxidation Processes Coupled with Nanomaterials for Water Treatment

Optimization of parameters applied to degradation and mineralization of p-nitrophenol using advanced oxidative processes

Self-assembled multifunctional Fe3O4 hierarchical microspheres: high-efficiency lithium-ion battery materials and hydrogenation catalysts

Contact Info

Product

Resources

About