Solid-state preparation of mesoporous Ce–Mn–Co ternary mixed oxide nanoparticles for catalytic degradation of methylene blue

Wang, Qingwen; Deng, Wenyong; Lin, Xinchen; Huang, Xigen; Ling, Wei; Gong, Lei; Liu, Changxiang; Liu, Guangbin; Liu, Qian

doi:10.1016/j.jre.2020.10.016

Cited by 21 publications

(2 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nowadays, organic wastewater discharge has caused very serious world environmental problems with the rapid development of chemical production in the textile, paper, plastic, rubber, and cosmetics industries. Methylene blue (MB) dye is a commonly used organic pollutant, which has high stability and low biodegradability and is thus difficult to degrade [ 1 ]. Various strategies, such as membrane filtration [ 2 ], advanced oxidation process (AOPs) [ 3 ], photocatalysis [ 4 , 5 , 6 ], and adsorption [ 7 ] have been reported for the treatment of organic wastewater.…”

Section: Introductionmentioning

confidence: 99%

Modified Bamboo Charcoal as a Bifunctional Material for Methylene Blue Removal

Liu

Deng

Zhang³

et al. 2023

Materials

Self Cite

View full text Add to dashboard Cite

Biomass-derived raw bamboo charcoal (BC), NaOH-impregnated bamboo charcoal (BC-I), and magnetic bamboo charcoal (BC-IM) were fabricated and used as bio-adsorbents and Fenton-like catalysts for methylene blue removal. Compared to the raw biochar, a simple NaOH impregnation process significantly optimized the crystal structure, pore size distribution, and surface functional groups and increase the specific surface area from 1.4 to 63.0 m2/g. Further magnetization of the BC-I sample not only enhanced the surface area to 84.7 m2/g, but also improved the recycling convenience due to the superparamagnetism. The maximum adsorption capacity of BC, BC-I, and BC-IM for methylene blue at 328 K was 135.13, 220.26 and 497.51 mg/g, respectively. The pseudo-first-order rate constants k at 308 K for BC, BC-I, and BC-IM catalytic degradation in the presence of H2O2 were 0.198, 0.351, and 1.542 h−1, respectively. A synergistic mechanism between adsorption and radical processes was proposed.

show abstract

Section: Introductionmentioning

confidence: 99%

Modified Bamboo Charcoal as a Bifunctional Material for Methylene Blue Removal

Liu

Deng

Zhang³

et al. 2023

Materials

Self Cite

View full text Add to dashboard Cite

show abstract

“…Spinel-type cobalt oxide can be synthesized by a wide number of both dry and wet synthetic routes, such as basic precipitation [13], sol-gel complexation [14], freeze-drying [15], solution combustion synthesis [16], reactive grinding [17], or simple calcination of a cobalt salt [18]. An appropriate synthesis route should ideally produce a cobalt oxide catalyst with suitable textural, structural and redox properties, which can be helpful in promoting its performance at low temperatures.…”

Section: Introductionmentioning

confidence: 99%

Bulk Co3O4 for Methane Oxidation: Effect of the Synthesis Route on Physico-Chemical Properties and Catalytic Performance

et al. 2022

View full text Add to dashboard Cite

The synthesis of bulk pure Co3O4 catalysts by different routes has been examined in order to obtain highly active catalysts for lean methane combustion. Thus, eight synthesis methodologies, which were selected based on their relatively low complexity and easiness for scale-up, were evaluated. The investigated procedures were direct calcination of two different cobalt precursors (cobalt nitrate and cobalt hydroxycarbonate), basic grinding route, two basic precipitation routes with ammonium carbonate and sodium carbonate, precipitation-oxidation, solution combustion synthesis and sol-gel complexation. A commercial Co3O4 was also used as a reference. Among the several examined methodologies, direct calcination of cobalt hydroxycarbonate (HC sample), basic grinding (GB sample) and basic precipitation employing sodium carbonate as the precipitating agent (CC sample) produced bulk catalysts with fairly good textural and structural properties, and remarkable redox properties, which were found to be crucial for their good performance in the oxidation of methane. All catalysts attained full conversion and 100% selectivity towards CO2 formation at a temperature of 600 °C while operating at 60,000 h−1. Among these, the CC catalyst was the only one that achieved a specific reaction rate higher than that of the reference commercial Co3O4 catalyst.

show abstract

Nickel ferrite nanoparticles‐doped graphene oxide as a heterogeneous Fenton catalyst: Synthesis, characterization, and catalytic application

Thy,

Tuyen,

Viet

et al. 2022

Vietnam Journal of Chemistry

View full text Add to dashboard Cite

In this study, nickel ferrite nanoparticles‐doped graphene oxide nanocomposite (NiFe2O4/GO or NG) was fabricated by impregnation method with five different mass ratios of NiFe2O4:GO, namely, 1:1, 3:7, 4:6, 7:3, and 6:4, corresponding to NG1, NG2, NG3, NG4, and NG5 samples. According to the catalytic efficiency of the Fenton reaction of methylene blue (MB), the NG3 sample was chosen as the most appropriate sample, which possessed the highest catalytic efficiency. The effects of volume of H2O2, reaction time, and MB concentration, on the catalytic efficiency of NG3, were also investigated. The results revealed that with the 0.5 mL H2O2, MB concentration of 150 mg/L, and 60 min, the NG3 sample exhibited the highest catalytic efficiency of more than 99 %. The characterization of NG3 was investigated by advanced analysis methods. The results indicated that NiFe2O4 possessed a sphere shape with the size of 10‐30 nm, which was uniformly distributed on the GO sheets. Additionally, NG3 possessed a high specific surface area and magnetism. The above results confirmed that NiFe2O4/GO can be potentially applied in the treatment of organic dyes in water.

show abstract

Solid-state preparation of mesoporous Ce–Mn–Co ternary mixed oxide nanoparticles for catalytic degradation of methylene blue

Cited by 21 publications

References 47 publications

Modified Bamboo Charcoal as a Bifunctional Material for Methylene Blue Removal

Modified Bamboo Charcoal as a Bifunctional Material for Methylene Blue Removal

Bulk Co3O4 for Methane Oxidation: Effect of the Synthesis Route on Physico-Chemical Properties and Catalytic Performance

Nickel ferrite nanoparticles‐doped graphene oxide as a heterogeneous Fenton catalyst: Synthesis, characterization, and catalytic application

Contact Info

Product

Resources

About