Preparation and characterization of bimetallic zero-valent iron nanocatalysts for nitrophenol degradation

Article Chemistry, Physical

Molten salt synthesis of high-entropy alloy AlCoCrFeNiV nanoparticles for the catalytic hydrogenation of p-nitrophenol by NaBH4

Yasukazu Kobayashi et al.

Summary: High-entropy alloy nanoparticles were synthesized using a molten salt method, and they exhibited excellent catalytic activity in the hydrogenation reaction of p-nitrophenol.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2022)

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Article Engineering, Environmental

One-pot preparations of cyclodextrin polymer-entrapped nano zero-valent iron for the removal of p-nitrophenol in water

Xiaohang Yang et al.

Summary: Selective nano zero-valent iron composites have been developed for efficient removal of p-nitrophenol from water. The composites exhibit high selectivity, stability, and long-term performance.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Chemistry, Physical

Polyvinylpyrrolidone supported nZVI/Ni bimetallic nanoparticles for enhanced high-performance removal of aqueous Cr(VI)

Jiajun Huang et al.

Summary: The PVP-K30 stabilized iron-nickel bimetallic nanocomposites (PVP-nZVI/Ni) were successfully synthesized by liquid-phase reduction, and their ability for adsorption/reduction of Cr(VI) was investigated through kinetics and isotherm experiments. The results showed that PVP-nZVI/Ni could effectively remove Cr(VI) from wastewater within a wide pH range of 2 to 7, reaching equilibrium within 10 minutes with a maximum removal capacity of 400 mg/g.

CHEMICAL PHYSICS LETTERS (2022)

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Review Engineering, Environmental

Recent advances of carbon-based nano zero valent iron for heavy metals remediation in soil and water: A critical review

Weiyu Liang et al.

Summary: Nano zero valent iron (nZVI) combined with carbon-based materials shows great potential for heavy metal remediation, but also faces challenges. Environmental factors and long-term efficacy are crucial for the practical application of carbon-based nano zero valent iron (C-nZVI) in remediation processes.

JOURNAL OF HAZARDOUS MATERIALS (2022)

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Article Materials Science, Multidisciplinary

Development of hexagonal ZnO nanodisks for potential catalytic reduction of p-nitrophenol

Muthuchamy Maruthupandy et al.

Summary: Hexagonal ZnO nanodisks were synthesized and characterized. The synthesized nanodisks showed high purity, crystallinity, and efficient catalytic reduction activity towards p-nitrophenol with low reduction limit and good selectivity.

MATERIALS CHEMISTRY AND PHYSICS (2022)

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Article Chemistry, Physical

Cobalt nanoparticles embedded in porous N-doped carbon support as a superior catalyst for the p-nitrophenol reduction

Vera V. Butova et al.

Summary: A new cobalt-based composite for catalytic reduction of water pollutant - pnitrophenol has been synthesized and studied. ZIF-67 and its Zn-substituted analog were used as precursors for the catalyst preparation. The pyrolysis of ZIF-67 and Zn-substituted ZIF-67 resulted in cobalt nanoparticles embedded into N-doped carbon substrates. The addition of polyvinylidene fluoride (PVDF) as an additive to ZIF-substrates was found to enhance the catalytic properties of the obtained composite material. The PVDF additive reduces the cobalt concentration in the composite while the mesoporous carbon shells on the surface of the catalysts improve the rate of catalytic reactions.

APPLIED SURFACE SCIENCE (2022)

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Article Environmental Sciences

A novel lignin hydrogel supported nZVI for efficient removal of Cr(VI)

Xiaoyan Liu et al.

Summary: A novel hydrogel-supported nanoscale zero-valent iron (nZVI) composite, synthesized by ion exchange and in-situ reduction, showed enhanced removal efficiency for Cr(VI) compared to pure nZVI. The composite exhibited high removal capacity under acidic conditions, attributed to chemical reduction/precipitation, surface sorption, and swelling uptake mechanisms. The lignin hydrogel acted as a carrier, preventing aggregation of nZVI particles and improving their reactivity and utilization.

CHEMOSPHERE (2022)

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Article Engineering, Environmental

The high efficient Sb(III) removal by cauliflower like amorphous nanoscale zero-valent iron (A-nZVI)

Qi Cheng et al.

Summary: In this study, cauliflower-like amorphous nanoscale zero-valent iron (A-nZVI) was prepared and found to have better performance for the removal of Sb(III) compared to nZVI. A-nZVI showed higher removal capacity and selectivity for Sb(III) and was less affected by interfering anions. The findings contribute to the remediation of Sb(III) in groundwater.

JOURNAL OF HAZARDOUS MATERIALS (2022)

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Article Engineering, Environmental

The evolution of stable nanohybrids to complex heteroaggregates between nZVI and soil nanoparticles: The influence of ionic strength and soil components

Wenpei Wu et al.

Summary: The heteroaggregation mechanism between nZVI and four types of natural soil nanoparticles from northern and southern China was studied. It was found that stable nZVI-SNPs heteroaggregates were formed at low ionic strength, but SNPs accelerated the aggregation of nZVI at high ionic strength. The differences in heteroaggregation rates of nZVI with four SNPs were negligible.

JOURNAL OF HAZARDOUS MATERIALS (2022)

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Article Environmental Sciences

Controlled carbonization of microplastics loaded nano zero-valent iron for catalytic degradation of tetracycline

Ruirui Sun et al.

Summary: Nano zero-valent iron loaded porous carbon derived from microplastics was designed as a heterogeneous catalyst for degradation of persistent organic pollutants. The catalyst exhibited high carbon yield and large surface area, leading to effective degradation of various pollutants. Hydroxyl radicals generated from the activation of H2O2 enhanced by zero-valent iron in Fe/MMPC were identified as the predominant species in the catalytic reactions.

CHEMOSPHERE (2022)

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Article Environmental Sciences

Fate and mechanistic insights into nanoscale zerovalent iron (nZVI) activation of sludge derived biochar reacted with Cr(VI)

Xuyin Huang et al.

Summary: This study investigates the removal of heavy metals using nanoscale zero-valent iron modified biochar (nZVI-BC) and the interaction between nZVI corrosion products and heavy metals. The results show that nZVI-BC follows the Langmuir isotherm for Cr(VI) adsorption, and the main removal mechanism is the reduction of Cr(VI) to Cr(III). The corrosion of nZVI-BC is influenced by pH, with different iron oxide products formed at different pH levels. DFT calculations reveal that Fe3O4 has higher adsorption capacity for Cr(VI) under acidic conditions, and it effectively removes Cr(VI) through electrostatic attraction and reduction. However, Fe3O4 continues to convert to more stable FeOOH, which stabilizes the reduced Cr(III).

JOURNAL OF ENVIRONMENTAL MANAGEMENT (2022)

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Article Chemistry, Physical

Spectroscopic investigation of Cr(VI) sorption on nZVI/biochar composites

Min Xu et al.

Summary: The mechanism of Cr(VI) removal on nanoscale zero-valent iron/biochar was investigated, and it was found that the nZVI/biochar exhibited high removal capacity and chemical stability. The removal process involved adsorption, reduction, and co-precipitation, providing important insights for the removal of heavy metals in environmental cleanup.

JOURNAL OF MOLECULAR LIQUIDS (2022)

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Article Energy & Fuels

Property-based quantitative risk assessment of hydrogen, ammonia, methane, and propane considering explosion, combustion, toxicity, and environmental impacts

Seung Yeon Jeong et al.

Summary: This study conducts a quantitative risk assessment of decarbonized new fuels and conventional hydrocarbon fuels to compare their risks in terms of explosion, combustion, toxicity, and environment. The results show the risk degrees of each fuel and highlight the high-risk characteristics of certain fuels. These findings can be used to improve the safety of decarbonized alternative fuels in energy conversion systems.

JOURNAL OF ENERGY STORAGE (2022)

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Article Engineering, Environmental

Interactions between nanoscale zerovalent iron (NZVI) and silver nanoparticles alter the NZVI reactivity in aqueous environments

Junmin Deng et al.

Summary: This study comprehensively examines the effect of AgNPs on the reductive ability of NZVI, and finds that low doses of AgNPs decrease the reactivity of NZVI while high doses enhance it. Additionally, sulfate and humic acid are found to enhance the removal of p-NP in the NZVI-AgNP suspension.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Engineering, Environmental

Enhanced removal of Cd2+ by nano zero-valent iron modified attapulgite from aqueous solution: Optimal design, characterization and adsorption mechanism

Liang Dai et al.

Summary: Nano zero-valent iron modified attapulgite composite showed excellent potential for the removal of Cd2+ from contaminated water. The composite material exhibited high removal efficiency for Cd2+ in aqueous solutions and outperformed attapulgite. The adsorption process followed the pseudo-second-order model, with chemisorption as the dominant mechanism. The removal process was spontaneous and endothermic, accompanied by an increase in entropy. The presence of other metal ions in the solution strongly inhibited the removal of Cd2+. The mechanism of Cd2+ removal involved surface-complexation adsorption and precipitation/coprecipitation.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2022)

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Article Engineering, Environmental

Nanocelluloses affixed nanoscale Zero-Valent Iron (nZVI) for nickel removal: Synthesis, characterization and mechanisms

Mingyang Song et al.

Summary: In this study, a nanocellulose-based composite, NC-nZVI, was developed for efficient removal of nickel. The nZVI was anchored to nanocellulose through a liquid-phase reduction method, resulting in varied morphology and dispersion status. Among the developed composites, CNC-nZVI showed the most evenly distributed nZVI particles. The binding between NC and nZVI was achieved through hydrogen bonds, electrostatic attractions, coordination-covalent bonds, and steric hindrance. The CNC-nZVI composite exhibited significantly higher removal efficiency of Ni2+ compared to bare nZVI, and remained effective under a wide pH range and in the presence of interference ions like NO3-, Cl-, and Ca2+. The observed hollow-out structure and Tafel extrapolation curves indicated that CNC activated diffusion path and accelerated electronic transfer from nZVI. The superior removal performance of NC-nZVI and the abundance of raw materials make it a promising material for environmental remediation and wastewater treatment.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2022)

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Article Engineering, Environmental

Catalytic propensity of biochar decorated with core-shell nZVI@Fe3O4: A sustainable photo-Fenton catalysis of methylene blue dye and reduction of 4-nitrophenol

Arshid Bashir et al.

Summary: In this study, a sustainable and robust nano-catalytic material, nZVI-FBC, was developed by decorating peach skin-derived fibrous biochar with spherical zerovalent iron nanoparticles (nZVI). The excellent performance and stability of the nanocatalyst were confirmed through comprehensive characterization and analysis.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2022)

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Article Engineering, Chemical

Combined production of metallic-iron nanoparticles: exergy and energy analysis of two alternative processes using Hydrazine and NaBH4 as reducing agents

Giorgio Vilardi et al.

Summary: This study compares the profitability and energy efficiency of two processes for producing metallic iron nanoparticles using hydrated hydrazine and sodium borohydride. The results show that the sodium borohydride-based process is more profitable and energy-efficient than the hydrazine-based one. Despite the hydrazine-based process producing high purity iron nanoparticles, the borohydride-based process has lower energy consumption and higher exergy efficiency.

JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS (2021)

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Article Engineering, Chemical

Efficient removal of antibiotic oxytetracycline from water by Fenton-like reactions using reduced graphene oxide-supported bimetallic Pd/nZVI nanocomposites

Chi Hieu Nguyen et al.

Summary: In this study, Pd/nZVI/rGO composites were synthesized using a facile one-step liquid-phase reduction method, and showed good performance in removing antibiotic oxytetracycline (OTC) with better reusability than pristine nZVI particles. The introduction of rGO significantly enhanced OTC removal, and the degradation pathways of OTC over Pd/nZVI/rGO nanocomposite were proposed.

JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS (2021)

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Review Engineering, Environmental

Nano scale zero valent iron production methods applied to contaminated sites remediation: An overview of production and environmental aspects

Caroline Visentin et al.

Summary: The nano scale zero valent iron (nZVI) is widely used in remediation processes, with a growing emphasis on sustainable remediation. A study identified nine nZVI production methods, with the milling method scoring the best in terms of environmental aspects and the ultrasonic wave method scoring the worst.

JOURNAL OF HAZARDOUS MATERIALS (2021)

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Article Chemistry, Inorganic & Nuclear

Simple preparation of g-C3N4@Ni3C nanosheets and its application in supercapacitor electrode materials, hydrogengeneration via NaBH4 hydrolysis and reduction of p-nitrophenol

Minmin Liu et al.

Summary: g-C3N4@Ni3C nano-sheets were prepared by simple pyrolysis under different temperatures, characterized by various techniques, and proven to be versatile for applications in supercapacitor electrodes, hydrogen generation, and reduction reactions. This method offers a new strategy for the preparation of environmental energy materials using simple raw materials.

INORGANIC CHEMISTRY COMMUNICATIONS (2021)

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Article Environmental Sciences

A highly porous animal bone-derived char with a superiority of promoting nZVI for Cr(VI) sequestration in agricultural soils

Kai Liu et al.

Summary: The study developed a porous bone char (BC) to support nanoscale zero-valent iron (nZVI) for the remediation of Cr(VI) pollution in water and paddy soil under anaerobic conditions. BC/nZVI demonstrated a higher removal capacity for Cr(VI) compared to nZVI, with the best utilization rate at nZVI loading of 15% (BC/nZVI15). The presence of coexisting ions and humic acid can inhibit the removal of Cr(VI) with BC/nZVI15, while reduction and coprecipitation were identified as the dominant mechanisms of Cr(VI) removal.

JOURNAL OF ENVIRONMENTAL SCIENCES (2021)

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Article Environmental Sciences

Synergistic effect of Cu loading on Fe sites of fly ash for enhanced catalytic reduction of nitrophenol

Jaehyeong Park et al.

SCIENCE OF THE TOTAL ENVIRONMENT (2020)

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Article Engineering, Chemical

One-pot synthesis of bimetallic Pt/nZVI nanocomposites for enhanced removal of oxytetracycline: Roles of morphology changes and Pt catalysis

Mai Lien Tran et al.

JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS (2020)

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Article Chemistry, Multidisciplinary

Heat-treated biochar impregnated with zero-valent iron nanoparticles for organic contaminants removal from aqueous phase: Material characterizations and kinetic studies

Soroosh Mortazavian et al.

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY (2019)

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Article Green & Sustainable Science & Technology

Degradation of TCE, PCE, and 1,2-DCE DNAPLs in contaminated groundwater using polyethylenimine-modified zero-valent iron nanoparticles

Kuen-Song Lin et al.

JOURNAL OF CLEANER PRODUCTION (2018)

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Article Chemistry, Physical

Biogenic silver nanoparticles from Trachyspermum ammi (Ajwain) seeds extract for catalytic reduction of p-nitrophenol to p-aminophenol in excess of NaBH4

Neelu Chouhan et al.

JOURNAL OF MOLECULAR LIQUIDS (2017)

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Article Environmental Sciences

Evaluation of amendments to reduce arsenic and antimony leaching from co-contaminated soils

Steven J. Doherty et al.

CHEMOSPHERE (2017)

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Article Chemistry, Physical

Effect of NaBH4 on properties of nanoscale zero-valent iron and its catalytic activity for reduction of p-nitrophenol

Sungjun Bae et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2016)

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Review Chemistry, Physical

Recent Advances in Metal Nanoparticles Stabilization into Nanopores of Montmorillonite and Their Catalytic Applications for Fine Chemicals Synthesis

Dipak Kumar Dutta et al.

CATALYSIS REVIEWS-SCIENCE AND ENGINEERING (2015)

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Article Chemistry, Physical

Removal of p-nitrophenol (PNP) in aqueous solution by the micron-scale iron-copper (Fe/Cu) bimetallic particles

Bo Lai et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2014)

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Article Engineering, Environmental

Influence of Riboflavin on Nanoscale Zero-Valent Iron Reactivity during the Degradation of Carbon Tetrachloride

Sungjun Bae et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2014)

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Article Chemistry, Physical

Magnetic Recyclable Nanocomposite Catalysts with Good Dispersibility and High Catalytic Activity

Mingyue An et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2014)

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Article Chemistry, Physical

Kinetic Analysis of the Catalytic Reduction of 4-Nitrophenol by Metallic Nanoparticles

Sasa Gu et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2014)

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Article Chemistry, Multidisciplinary

Metal-free catalytic reduction of 4-nitrophenol to 4-aminophenol by N-doped graphene

Xiang-kai Kong et al.

ENERGY & ENVIRONMENTAL SCIENCE (2013)

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Article Engineering, Environmental

Removal of high concentration p-nitrophenol in aqueous solution by zero valent iron with ultrasonic irradiation (US-ZVI)

Bo Lai et al.

JOURNAL OF HAZARDOUS MATERIALS (2013)

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Article Chemistry, Physical

Catalytic wet air oxidation of a high strength p-nitrophenol wastewater over Ru and Pt catalysts: Influence of the reaction conditions on biodegradability enhancement

Mariangel Martin-Hernandez et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2012)

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Article Chemistry, Physical

Size dependent catalysis with CTAB-stabilized gold nanoparticles

R. Fenger et al.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2012)

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Article Chemistry, Physical

Bifunctional Au-Fe3O4 Heterostructures for Magnetically Recyclable Catalysis of Nitrophenol Reduction

Fang-hsin Lin et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2011)

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Article Chemistry, Physical

Inhibition of nZVI reactivity by magnetite during the reductive degradation of 1,1,1-TCA in nZVI/magnetite suspension

Sungjun Bae et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2010)

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Article Engineering, Environmental

Gamma radiation-induced degradation of p-nitrophenol (PNP) in the presence of hydrogen peroxide (H2O2) in aqueous solution

Shaoqing Yu et al.

JOURNAL OF HAZARDOUS MATERIALS (2010)

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Article Chemistry, Physical

Phenol degradation by advanced electrochemical oxidation process electro-Fenton using a carbon felt cathode

Marcio Pimentel et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2008)

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Article Chemistry, Multidisciplinary

Vapor-phase synthesis of metallic and intermetallic nanoparticles and nanowires: Magnetic and catalytic properties

Garry Glaspell et al.

PURE AND APPLIED CHEMISTRY (2006)

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Article Engineering, Environmental

Degradation of p-nitrophenol in aqueous solution by microwave assisted oxidation process through a granular activated carbon fixed bed

Longli Bo et al.

WATER RESEARCH (2006)

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Article Engineering, Environmental

Biodegradation of p-nitrophenol by aerobic granules in a sequencing batch reactor

S Yi et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2006)

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Article Physics, Applied

Void formation during early stages of passivation: Initial oxidation of iron nanoparticles at room temperature

CM Wang et al.

JOURNAL OF APPLIED PHYSICS (2005)

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Article Engineering, Environmental

Removal of arsenic(III) from groundwater by nanoscale zero-valent iron

SR Kanel et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2005)

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Article Chemistry, Physical

Photocatalytic degradation of 4-nitrophenol in aqueous suspension by using polycrystalline TiO2 samples impregnated with Cu(II)-phthalocyanine

G Mele et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2002)

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Article Chemistry, Physical

Silver nanoparticle catalyzed reduction of aromatic nitro compounds

N Pradhan et al.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2002)

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Article Engineering, Environmental

p-Nitrophenol degradation by activated sludge attached on nonwovens

ZI Bhatti et al.

WATER RESEARCH (2002)

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Article Engineering, Environmental

Field assessment of nanoscale biometallic particles for groundwater treatment

DW Elliott et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2001)

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Article Environmental Sciences

Kinetics of reductive denitrification by nanoscale zero-valent iron

S Choe et al.

CHEMOSPHERE (2000)

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Preparation and characterization of bimetallic zero-valent iron nanocatalysts for nitrophenol degradation

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