Synthesis of controlled release calcium peroxide nanoparticles (CR-nCPs): Characterizations, H2O2 liberate performances and pollutant degradation efficiency

Ali, Meesam; Farooq, Usman; Lyu, Shuguang; Sun, Yong; Li, Ming; Ahmad, Ayyaz; Shan, Ali; Abbas, Zain

doi:10.1016/j.seppur.2020.116729

Cited by 45 publications

(16 citation statements)

References 51 publications

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“…Apart from H 2 O 2 , other chemicals such as peroxymonosulfate have also been practised to generate powerful radicals for oxidation (Kakavandi et al 2022). The use of stable oxidants such as calcium peroxide has also been documented in some reports (Ali et al 2020a(Ali et al , 2020b(Ali et al , 2021. The Fenton process is an age-old process dealing with the generation of powerful hydroxyl radicals.…”

Section: Introductionmentioning

confidence: 99%

A comprehensive review on BPA degradation by heterogeneous Fenton-like processes

Nath

Biswas

Pal

2022

Water Science and Technology

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Synthetic organic pollutants emanating continuously in the ecosystem have become a global concern because of their toxicity and persistent nature. Bisphenol A (BPA) is one such pollutant which threatens public health and safety. It is a monomer used in manufacturing plastics, polycarbonate resins, epoxy resins and is a well-recognised endocrine disruptor miming estrogen. BPA leaches into food and beverages stored in containers causing contamination issues. Its widespread exposure and potential toxicity is an environmental health concern. In this review, a systematic investigation has been carried out on the heterogeneous catalysts used for Fenton-like processes for BPA degradation. The Fenton-like reaction is one such reaction that is used for wastewater remediation purposes. The reaction advances through the generation of powerful oxidizing radicals like OH. and SO4•– in the presence of a suitable catalyst. The application of various Fenton catalysts, with their distinguished morphological characteristics, oxidizing properties, toxicity analysis, and the present state of the art of BPA degradation by these catalysts, have been documented in the current work. This review also highlights a few challenges and prospects for analysing degradation products of landfill leachate.

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Section: Introductionmentioning

confidence: 99%

A comprehensive review on BPA degradation by heterogeneous Fenton-like processes

Nath

Biswas

Pal

2022

Water Science and Technology

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“…Figure 6A is showing the adsorption‐desorption isotherm for pristine wood pulp sponge. It follows the physisorption isotherm type II recommended by international union of pure and applied chemistry (IUPAC) which signifies the typical characteristics of micro‐mesoporous type materials 66,67 . Moreover, particle size distribution curve for pristine wood pulp sponge is shown in Figure 6B.…”

Section: Resultsmentioning

confidence: 66%

“…It follows the physisorption isotherm type II recommended by international union of pure and applied chemistry (IUPAC) which signifies the typical characteristics of micro-mesoporous type materials. 66,67 Moreover, particle size distribution curve for pristine wood pulp sponge is shown in Figure 6B. Indeed, micropores domain is considered to be comprised of pores with diameters of less than 2 nm, whereas the mesopores comprise diameters between 2 and 50 nm.…”

Section: Physical Characterizations Of Assynthesized Cdpcsmentioning

confidence: 99%

Unraveling the facile reproducible modeled approach for bifunctional catalytic decorated polydopamine coated sponge composite for hydrogen generation

Tariq

Ali

et al. 2022

Intl J of Energy Research

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Summary Continuous, flexible, and pure hydrogen (H2) gas supply to the portable, and compact shape proton exchange membrane fuel cells and other type of fuel cells is considered as one of the key factor to be solved for researchers. In this research study, we develop the facile strategy to synthesize the novel, multipurpose catalytic decorated polydopamine coated sponge (CDPCS) composite for continuous H2 generation for a long period of time as well as storage of solution within the composite. We explore the most efficient, light weight, hydrophilic commercial sponge, that is, wood pulp sponge (WPS), and binder, that is, polydopamine (PDA). Decoration of platinum nano particles and using of sodium borohydride solution are carried out as a case study by using as‐synthesized CDPCS. Various characterization techniques such as scanning electron microscopy, transmission electron microscopy, X‐ray diffraction, Brunauer‐Emmett‐Teller (BET) analysis and energy dispersive X‐ray (EDX) analysis are successfully employed to confirm the presence and size of nano particles and successfully coating of PDA layer. Hydrogen production performance of CDPCS with respect to different mass contents of Pt nanoparticles, molar concentration of sodium borohydride and at different temperature is investigated in this research study. An 87% yield of hydrogen generation has been achieved with 18 mg contents of Pt nano particles and 3 M concentration of sodium borohydride at room temperature. We believe that our conducted research study with respect to novel, facile, reproducible designed CDPCS based composites will be highly promising to simplify the hydrogen generation system for rapidly developed portable and wearable electronic devices.

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“…Assorted studies have assessed the efficacy of calcium peroxide on pollutants removal. For instance, the removal of fluticasone propionate and clobetasol propionate [ 18 ], trichloroethylene (TCE) [ 19 , 20 ], methylene blue [ 21 ], and 2,4-dichlorophenol [ 22 ] by CP has been reported. In the recent years, nanoparticles CaO 2 (nCPs) have acquired the researcher’s attentions due to the noteworthy and preferable performance than the commercial CP [ 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

“…Besides, the surface stabilizers used during the synthesis process, such as polyethylene glycol (PEG), polyvinyl pyrrolidone (PVP), polyvinyl alcohol (PVA), dextran, and diethylene glycol monomethyl ether (DEGMME), also dominated the removal efficiency [ 24 ]. These surface stabilizers adsorb on nanoparticles and prevent irreversible agglomeration, resulting in stable dispersion with higher steric repulsion [ 19 ]. The previous studies have confirmed that nCPs preformed effectively in the removal of organic micropollutants and inorganic heavy metals [ 25 , 26 , 27 ], acid blue 161 [ 28 ], acrylic acid [ 29 , 30 ], benzene [ 31 ], and doxycycline [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

Effective Removal of Glyphosate from Aqueous Systems Using Synthesized PEG-Coated Calcium Peroxide Nanoparticles: Kinetics Study, H2O2 Release Performance and Degradation Pathways

Choong

Abdullah

et al. 2023

Polymers

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Glyphosate (N-phosphonomethyl glycine) is a non-selective, broad-spectrum organophosphate herbicide. Its omnipresent application with large quantity has made glyphosate as a problematic contaminant in water. Therefore, an effective technology is urgently required to remove glyphosate and its metabolites from water. In this study, calcium peroxide nanoparticles (nCPs) were functioned as an oxidant to produce sufficient hydroxyl free radicals (·OH) with the presence of Fe2+ as a catalyst using a Fenton-based system. The nCPs with small particle size (40.88 nm) and high surface area (28.09 m2/g) were successfully synthesized via a co-precipitation method. The synthesized nCPs were characterized using transform infrared spectroscopy (FTIR), X-ray diffractometry (XRD), Brunauer–Emmett–Teller analysis (BET), dynamic light scattering (DLS), and field emission scanning electron microscopy (FESEM) techniques. Under the given conditions (pH = 3.0, initial nCPs dosage = 0.2 g, Ca2+/Fe2+ molar ratio = 6, the initial glyphosate concentration = 50 mg/L, RT), 99.60% total phosphorus (TP) removal and 75.10% chemical oxygen demand (COD) removal were achieved within 75 min. The degradation process fitted with the Behnajady–Modirshahla–Ghanbery (BMG) kinetics model. The H2O2 release performance and proposed degradation pathways were also reported. The results demonstrated that calcium peroxide nanoparticles are an efficient oxidant for glyphosate removal from aqueous systems.

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Synthesis of controlled release calcium peroxide nanoparticles (CR-nCPs): Characterizations, H2O2 liberate performances and pollutant degradation efficiency

Cited by 45 publications

References 51 publications

A comprehensive review on BPA degradation by heterogeneous Fenton-like processes

A comprehensive review on BPA degradation by heterogeneous Fenton-like processes

Unraveling the facile reproducible modeled approach for bifunctional catalytic decorated polydopamine coated sponge composite for hydrogen generation

Effective Removal of Glyphosate from Aqueous Systems Using Synthesized PEG-Coated Calcium Peroxide Nanoparticles: Kinetics Study, H2O2 Release Performance and Degradation Pathways

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