4.8 Article

Nanostructured niobium oxyhydroxide dispersed Poly (3-hydroxybutyrate) (PHB) films: Highly efficient photocatalysts for degradation methylene blue dye

Journal

APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 189, Issue -, Pages 141-150

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/j.apcatb.2016.02.031

Keywords

Photocatalysis; PHB; Niobium oxyhydroxide

Funding

  1. CNPq
  2. FAPEMIG
  3. CAPES

Ask authors/readers for more resources

In this work, nanostructured niobium oxyhydroxide was dispersed over poly (3-hydroxybutyrate) (PHB), which is a biopolymer, for application as a photocatalyst using visible and UV light. PHB films with different amounts of niobium oxyhydroxide were characterized by diffuse UV-vis reflectance spectroscopy, FTIR-ATR and SEM. The characterizations showed particles of the niobium compound well-dispersed on the polymeric matrix, thus modifying the bandgap value, which improved the photocatalysis process. The material showed excellent catalytic activity (approximately 100% degradation) for the oxidation of methylene blue dye considering the reaction in a continuous flow bath. Moreover, the polymer films were easily removed from the solution after the reaction and reused several times while retaining their high activity. ESI-MS studies showed that the dye removal occurs by the formation of reaction intermediates due to the successive hydroxylation of the dye structure, confirming that the reaction took place improved by photocatalytic conditions. (C) 2016 Elsevier B.V. All rights reserved.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.8
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

Article Chemistry, Applied

Photoactivation of a biodegradable polymer (PHB): Generation of radicals for pollutants oxidation

Ana Pacheli Heitmann, Italo Coura Rocha, Patterson P. de Souza, Luiz C. A. Oliveira, Patricia S. de O. Patricio

CATALYSIS TODAY (2020)

Article Environmental Sciences

3D sponges of chemically functionalized chitosan for potential environmental pollution remediation: biosorbents for anionic dye adsorption and 'antibiotic-free' antibacterial activity

Isadora C. Carvalho, Fernanda G. L. Medeiros Borsagli, Alexandra A. P. Mansur, Claudia L. Caldeira, Dionei J. Haas, Andrey P. Lage, Virginia S. T. Ciminelli, Herman S. Mansur

Summary: This study developed three-dimensional porous hydrogel sponges for dye removal and antibacterial applications, with high adsorption capacity and antibacterial activity demonstrated through comprehensive characterization.

ENVIRONMENTAL TECHNOLOGY (2021)

Article Materials Science, Multidisciplinary

Green synthesis of ZnS quantum dot/biopolymer photoluminescent nanoprobes for bioimaging brain cancer cells

Anderson J. Caires, Alexandra A. P. Mansur, Isadora C. Carvalho, Sandhra M. Carvalho, Herman S. Mansur

MATERIALS CHEMISTRY AND PHYSICS (2020)

Article Construction & Building Technology

Photocatalytic performance of cementitious materials with addition of red mud and Nb2O5 particles

Michelle A. N. S. Moreira, Ana P. Heitmann, Augusto C. S. Bezerra, Patricia S. O. Patricio, Luiz C. A. de Oliveira, Cinthia S. Castro, Patterson P. de Souza

CONSTRUCTION AND BUILDING MATERIALS (2020)

Article Construction & Building Technology

Evaluation of properties of polymer concrete based on epoxy resin and functionalized carbon nanotubes

Diana Byron, Ana Pacheli Heitman, Juliana Neves, Patterson Patricio de Souza, Patricia Santiago de Oliveira Patricio

Summary: The research demonstrates that adding functionalized carbon nanotubes to polymeric concrete can promote its curing process and enhance mechanical properties. Functionalized CNTs can achieve higher compressive strength compared to unfunctionalized nanotubes and nanocomposites with low CNTs content.

CONSTRUCTION AND BUILDING MATERIALS (2021)

Article Materials Science, Multidisciplinary

Optically photoactive Cu-In-S@ZnS core-shell quantum dots/biopolymer sensitized TiO2 nanostructures for sunlight energy harvesting

Josue C. Amaral-Junior, Alexandra A. P. Mansur, Isadora C. Carvalho, Herman S. Mansur

Summary: In this study, a novel hybrid nanostructure for sunlight energy photoconversion was designed and developed, utilizing safe and sustainable design strategies. The nanostructure consists of non-cadmium inorganic semiconductor quantum dots, carboxylic-functionalized cellulose derivative, and a green chemistry approach for water-soluble supramolecular colloidal core-shell nanostructures. Through optical and photoelectrochemical characterization, the potential application of these quantum dot-sensitized nanostructures in sunlight energy conversion was confirmed, highlighting their prospects for sustainable clean energy production.

OPTICAL MATERIALS (2021)

Article Chemistry, Analytical

Applicability of new configuration of open tubular solid phase microextraction for determination of free (unconjugated) testosterone esters by gas chromatography with barrier ionization discharge detector

Jhonatan Bispo de Oliveira, Venilton Menezes Vieira Ferreira, Patricia Santiago de Oliveira Patricio, Patterson Patricio de Souza

Summary: A new methodology has been developed for analyzing testosterone esters in urine, which shows potential in controlling testosterone ester doping. The performance of the new IT-FEX-SPME-GC-BID method has been validated and it demonstrates acceptable sensitivity, repeatability, and linearity.

MICROCHEMICAL JOURNAL (2022)

Article Biochemical Research Methods

Trapping of polycyclic aromatic hydrocarbons in vehicle exhaust using an in-tube extraction device for analysis by gas chromatography-barrier ionization discharge detection

Henrique Giacomo Pereira Menezes, Isis Gabriella da Silva Batista, Jhonatan Bispo de Oliveira, Venilton Menezes Vieira Ferreir, Patterson Patricio de Souza, Patricia Sueli Rezende

Summary: This work presents a methodology for trapping polycyclic aromatic hydrocarbons (PAHs) from vehicle emissions using an in-tube extraction device (IT-FEx). The selectivity of the device was evaluated through the interaction between the aromatic compounds and the polymeric phase. The study found that medium-sized PAHs showed a greater affinity for the device compared to smaller and larger PAHs. Certain PAHs, such as phenanthrene and fluoranthene, were effectively trapped by the device and detected through GC-BID analysis.

JOURNAL OF CHROMATOGRAPHY A (2023)

Article Chemistry, Inorganic & Nuclear

Unexpected formation of a dodecanuclear {CoII6CuII6} nanowheel under ambient conditions: magneto-structural correlations

Walace D. do Pim, Ingrid F. Silva, Eufranio N. da Silva Junior, Humberto O. Stumpf, Willian X. C. Oliveira, Emerson F. Pedroso, Carlos B. Pinheiro, Yves Journaux, Felipe Fantuzzi, Ivo Krummenacher, Holger Braunschweig, Bernd Engels, Joan Cano, Miguel Julve, Cynthia L. M. Pereira

Summary: In this study, a unique heterobimetallic dodecanuclear oxamate-based {CoII6CuII6} nanowheel was successfully obtained using an environmentally friendly synthetic protocol. The effective Hamiltonian methodology employed allowed for the rationalisation of magnetic isotropic or anisotropic metal clusters, marking a significant advance for future studies of properties observed at low and ultralow temperatures.

DALTON TRANSACTIONS (2021)

Article Chemistry, Multidisciplinary

Ferromagnetic coupling in a dicopper(II) oxamate complex bridged by carboxylate groups

Tamyris T. da Cunha, Cleverton O. C. da Silveira, Vitor M. M. Barbosa, Willian X. C. Oliveira, Eufranio N. da Silva Junior, Fabio F. Ferreira, Emerson F. Pedroso, Cynthia L. M. Pereira

Summary: Three new air-stable coordination compounds containing copper and zinc coordinated with oxamate ligands were successfully synthesized and characterized. These compounds exhibit different crystal structures and magnetic behaviors, with the phenol group in the oxamate ligand leading to distinct hydrogen bond patterns in the crystal packing.

CRYSTENGCOMM (2021)

Article Chemistry, Inorganic & Nuclear

Mononuclear lanthanide(III)-oxamate complexes as new photoluminescent field-induced single-molecule magnets: solid-state photophysical and magnetic properties

Raphael C. A. Vaz, Isabela O. Esteves, Willian X. C. Oliveira, Joao Honorato, Felipe T. Martins, Lippy F. Marques, Guilherme L. dos Santos, Ricardo O. Freire, Larissa T. Jesus, Emerson F. Pedroso, Wallace C. Nunes, Miguel Julve, Cynthia L. M. Pereira

DALTON TRANSACTIONS (2020)

Article Chemistry, Applied

Cu-In-S/ZnS@carboxymethylcellulose supramolecular structures: Fluorescent nanoarchitectures for targeted-theranostics of cancer cells

Alexandra A. P. Mansur, Josue C. Amaral-Junior, Sandhra M. Carvalho, Isadora C. Carvalho, Herman S. Mansur

CARBOHYDRATE POLYMERS (2020)

Article Chemistry, Multidisciplinary

Dinuclear copper(ii) complexes containing oxamate and blocking ligands: crystal structure, magnetic properties, and DFT calculations

Tatiana R. G. Simoes, Walace D. do Pim, Karina C. Metz, Marcos A. Ribeiro, Daniel C. A. Valente, Thiago M. Cardozo, Carlos B. Pinheiro, Emerson F. Pedroso, Bruno A. C. Horta, Cynthia L. M. Pereira, Gilmar P. de Souza, Humberto O. Stumpf

NEW JOURNAL OF CHEMISTRY (2020)

Article Nanoscience & Nanotechnology

Hybrid Hydrogel Composed of Carboxymethylcellulose-Silver Nanoparticles-Doxorubicin for Anticancer and Antibacterial Therapies against Melanoma Skin Cancer Cells

Nadia S. V. Capanema, Isadora C. Carvalho, Alexandra A. P. Mansur, Sandhra M. Carvalho, Andrey P. Lage, Herman S. Mansur

ACS APPLIED NANO MATERIALS (2019)

Article Materials Science, Biomaterials

Bifunctional magnetopolymersomes of iron oxide nanoparticles and carboxymethylcellulose conjugated with doxorubicin for hyperthermo-chemotherapy of brain cancer cells

Sandhra M. Carvalho, Alice G. Leonel, Alexandra A. P. Mansur, Isadora C. Carvalho, Klaus Krambrock, Herman S. Mansur

BIOMATERIALS SCIENCE (2019)

Article Chemistry, Physical

Enhancing catalytic activity of zeolitic octahedral metal oxides through zinc incorporation for ethane oxidative dehydrogenation

Bolun Yu, Denan Li, Qianqian Zhu, Shufan Yao, Lifeng Zhang, Yanshuo Li, Zhenxin Zhang

Summary: This study successfully improved the catalytic activity of a zeolitic octahedral metal oxide by incorporating a single zinc species into its micropore. The zinc incorporation achieved a high ethane conversion rate and ethylene selectivity. Mechanism study showed that the isolated zinc site played a crucial role in activating oxygen and ethane, as well as stabilizing intermediates and transition states.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

Article Chemistry, Physical

Unveiling the synergistic effect between the metallic phase and bridging S species over MoS2 for highly efficient nitrogen fixation

Ruoqi Liu, Hao Fei, Jian Wang, Ting Guo, Fangyang Liu, Zhuangzhi Wu, Dezhi Wang

Summary: This work successfully synthesized a high-performing S-enriched MoS2 catalyst for electrocatalytic nitrogen reduction reaction (NRR), demonstrating high activity and selectivity. The synergistic effect of the 1T phase and bridging S22- species was shown to play a positive role in NRR performances, and DFT calculations revealed the mechanism behind the improved performance.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

Article Chemistry, Physical

Polymethylhydrosiloxane-modified gas-diffusion cathode for more efficient and durable H2O2 electrosynthesis in the context of water treatment

Pan Xia, Lele Zhao, Xi Chen, Zhihong Ye, Zhihong Zheng, Qiang He, Ignasi Sires

Summary: This study presents a modified gas-diffusion electrode (GDE) for highly efficient and stable H2O2 electrosynthesis by using trace polymethylhydrosiloxane (PMHS). DFT calculations provide an in-depth understanding of the roles of PMHS functional groups.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

Article Chemistry, Physical

Boron-doped rGO electrocatalyst for high effective generation of hydrogen peroxide: Mechanism and effect of oxygen-enriched air

Kwangchol Ri, Songsik Pak, Dunyu Sun, Qiang Zhong, Shaogui Yang, Songil Sin, Leliang Wu, Yue Sun, Hui Cao, Chunxiao Han, Chenmin Xu, Yazi Liu, Huan He, Shiyin Li, Cheng Sun

Summary: Different B-doped rGO catalysts were synthesized and their 2e- oxygen reduction reaction (ORR) performance was investigated. It was found that the 2e- ORR selectivity of B-doped rGO was influenced by the B content and oxygen mass transfer conditions. The synthesized catalyst exhibited high 2e- ORR selectivity and was capable of degrading organic pollutants continuously.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

Article Chemistry, Physical

Oxygen vacancies-modified S-scheme heterojunction of Bi-doped La2Ti2O7 and La-doped Bi4Ti3O12 to improve the NO gas removal avoiding NO2 product

Li Lv, Lin Lei, Qi-Wen Chen, Cheng-Li Yin, Huiqing Fan, Jian-Ping Zhou

Summary: Monoclinic phase La2Ti2O7 and orthorhombic phase Bi4Ti3O12 are widely used in photocatalysis due to their layered crystal structure. The electronic structures of these phases play a crucial role in their photocatalytic activity. Heat treatment in a nitrogen atmosphere introduces more oxygen vacancies into the S-scheme heterojunction, leading to enhanced NO removal efficiency.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

Article Chemistry, Physical

Understanding the synergistic effect of hydrated electron generation from argon plasma catalysis over Bi2O3/CeO2 for perfluorooctanoic acid dehalogenation: Mechanism and DFT study

Choe Earn Choong, Minhee Kim, Jun Sup Lim, Young June Hong, Geon Joon Lee, Keun Hwa Chae, In Wook Nah, Yeomin Yoon, Eun Ha Choi, Min Jang

Summary: In this study, the synergistic effect between argon-plasma-system (AP) and catalysts in promoting the production of reactive species for water remediation was investigated. By altering the oxygen vacancies concentration of CeO2/Bi2O3 catalyst, the production of hydrated electrons was stimulated for PFOA removal. The results showed that the built-in electric field in the Bi/Ce0.43 interface enhanced electron migration and eaq- generation, leading to improved PFOA removal efficiency.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

Article Chemistry, Physical

Ru clusters anchored on N-doped porous carbon-alumina matrix as efficient catalyst toward primary amines via reductive amination

Yushan Wu, Di Xu, Yanfei Xu, Xin Tian, Mingyue Ding

Summary: Efficient synthesis of primary amines from carbonyl compounds was achieved via reductive amination using Ru@NC-Al2O3 as a catalyst, exhibiting high activity and selectivity under mild conditions.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

Article Chemistry, Physical

Efficient 1O2 production from H2O2 over lattice distortion controlled spinel ferrites

Yilan Jiang, Peifang Wang, Tingyue Chen, Keyi Gao, Yiran Xiong, Yin Lu, Dionysios D. Dionysiou, Dawei Wang

Summary: By controlling the content of Co and Ni in Co1-xNixFe2O4, the production of O-1(2) from H2O2 can be regulated. NiFe2O4, with the lowest lattice distortion degree, can efficiently produce O-1(2) as the dominant reactive oxygen species. The system also exhibits significant resistance to water matrix interference.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

Article Chemistry, Physical

Tailoring the Mo-N/Mo-O configuration in MoO2/Mo2N heterostructure for ampere-level current density hydrogen production

Shuai Feng, Donglian Li, Hao Dong, Song Xie, Yaping Miao, Xuming Zhang, Biao Gao, Paul K. Chu, Xiang Peng

Summary: In this study, MoO2/Mo2N heterostructures were prepared by regulating the coordination of Mo atoms. The electrocatalyst exhibits high current density and excellent stability for hydrogen evolution reaction.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

Article Chemistry, Physical

Spin state-tailored tetrahedral and octahedral cobalt centers on millimetric Co-Al oxide catalysts as dual sites for synergistic peroxymonosulfate activation

Jia-Cheng E. Yang, Min -Ping Zhu, Daqin Guan, Baoling Yuan, Darren Delai Sun, Chenghua Sun, Ming-Lai Fu

Summary: This study successfully modulated the electron configuration and spin state of millimetric metal catalysts by adjusting the support curvature radius. The electronic structure-oriented spin catalysis was found to affect the degradation of pollutants, providing new insights for the design and production of highly active, reusable, and stable catalysts.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

Article Chemistry, Physical

Cu nanocrystals coupled with poly (heptazine imide) for synergistically enhanced photocatalytic CH3SH elimination: Facet engineering strengthened electron pump effect

Tao Zhong, Su Tang, Wenbin Huang, Wei Liu, Huinan Zhao, Lingling Hu, Shuanghong Tian, Chun He

Summary: In this study, a highly efficient photocatalyst for the elimination of CH3SH was developed by engineering different crystal facets and coupling them with PHI. Cu (111)/PHI exhibited the highest elimination efficiency and showed good stability and reusability. The enhanced surface electron pump effect and effective adsorption mechanisms were revealed through comprehensive characterizations and DFT calculations.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

Article Chemistry, Physical

NiSn intermetallic nanoparticles with geometrically isolated Ni sites for selective C-O cleavage of furfural

Feifei Yang, Tianyu Zhang, Jiankang Zhao, Wei Zhou, Nicole J. Libretto, Jeffrey T. Miller

Summary: A Ni3Sn intermetallic nano particle was found to have geometrically isolated Ni sites that could selectively cleave C-O bonds in biomass derivatives. This nano particle showed high activity and selectivity towards 2-methylfuran, unlike Ni nanoparticles that produced other unwanted products derived from the aromatic rings.

APPLIED CATALYSIS B-ENVIRONMENTAL (2024)

Article Chemistry, Physical

Nickel-facilitated in-situ surface reconstruction on spinel Co3O4 for enhanced electrochemical nitrate reduction to ammonia

Lulu Qiao, Di Liu, Anquan Zhu, Jinxian Feng, Pengfei Zhou, Chunfa Liu, Kar Wei Ng, Hui Pan

Summary: This study reveals that surface evolution plays a crucial role in enhancing the electrocatalytic performance of transition metal oxides for electrochemical nitrate reduction reaction (e-NO3RR). Incorporating nickel into Co3O4 can promote surface reconstruction and improve the adsorption of intermediates and reduce energy barriers, leading to enhanced catalytic performance. The reconstructed cobalt-nickel hydroxides (CoyNi1_y(OH)2) on the catalyst's surface serve as the active phase.

APPLIED CATALYSIS B-ENVIRONMENTAL (2024)

Article Chemistry, Physical

Unraveling the discriminative mechanisms for peroxy activation via atomically dispersed Fe-N5 sites for tunable water decontamination

Xinyu Song, Yang Shi, Zelin Wu, Bingkun Huang, Xinhao Wang, Heng Zhang, Peng Zhou, Wen Liu, Zhicheng Pan, Zhaokun Xiong, Bo Lai

Summary: This study explores the discriminative activities and mechanisms for activation of O-O bond in peroxy compounds via single-atom catalysts (SACs) with higher coordination numbers (M-N5). The atomic catalyst (Fe-SAC) with Fe-N5 as the active center was constructed, effectively activating peroxymonosulfate (PMS), peroxydisulfate (PDS), and hydrogen peroxide (H2O2). The study demonstrates the degradation efficiencies of acyclovir are related to the O-O bond length in different peroxy compounds, and reveals the discriminative mechanisms for activation of O-O bond in different Fenton-like systems.

APPLIED CATALYSIS B-ENVIRONMENTAL (2024)

Article Chemistry, Physical

Fe-Mn oxycarbide anchored on N-doped carbon for enhanced Fenton-like catalysis: Importance of high-valent metal-oxo species and singlet oxygen

Yangzhuo He, Hong Qin, Ziwei Wang, Han Wang, Yuan Zhu, Chengyun Zhou, Ying Zeng, Yicheng Li, Piao Xu, Guangming Zeng

Summary: A dual-metal-organic framework (MOF) assisted strategy was proposed to construct a magnetic Fe-Mn oxycarbide anchored on N-doped carbon for peroxymonosulfate (PMS) activation. The FeMn@NC-800 catalyst exhibited superior activity with almost 100% degradation of sulfamethazine (SMZ) in 30 minutes. The study provided insights for the rational design of high-performance heterogeneous catalysts and proposed a novel nonradical-based catalytic oxidation for environmental cleaning.

APPLIED CATALYSIS B-ENVIRONMENTAL (2024)