A new approach to obtain mesoporous-activated carbon via hydrothermal carbonization of Brazilian Cerrado biomass combined with physical activation for bisphenol-A removal

Antero, Romário Victor Pacheco; Alves, Andreia Cristina Fonseca; Sales, Paulo de Tarso Ferreira; Oliveira, Sérgio Botelho de; Ojala, Satu; Brum, Sarah Silva

doi:10.1080/00986445.2019.1601625

Cited by 30 publications

(16 citation statements)

References 62 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…1b) of palm kernel shells was done in a high-pressure Parr reactor. The reaction conditions were optimized in our earlier work and are reported in [26]. The ratio of palm kernel shells to deionized water used was 1:5.…”

Section: Hydrothermal Carbonization Of Palm Kernel Shellsmentioning

confidence: 99%

Hydrochar-derived adsorbent for the removal of diclofenac from aqueous solution

Yaah

Zbair

Oliveira

et al. 2021

Nanotechnol. Environ. Eng.

View full text Add to dashboard Cite

The characteristics and diclofenac adsorption properties of a carbon adsorbent prepared from palm kernel shells were studied. The adsorbent prepared via hydrothermal carbonization followed by an activation in nitrogen flow had a mesoporous structure with homogenous pore distribution and the specific surface area of 131 m2g−1. The Raman spectra showed a formation of graphene or graphite structures in the material during activation with small number of defects based on its ID/IG ratio of about 0.5. The FTIR analysis showed both a qualitative and quantitative decrease in the functional groups of the raw material after activation. The developed adsorbent was found to be effective in the removal of diclofenac with 95% maximum removal at pH 2, adsorbent dose of 15 gL−1 and adsorbate dose of 50 mgL−1. Diclofenac adsorption followed the Langmuir isotherm model with correlation coefficient R2 > 0.98. The adsorption kinetics was explained by the second-order kinetic model with rate constant (K2) 0.869 min−1. The interaction via aromatic π–π stacking and hydrogen bonding between -OH groups of phenol and carboxylic acid groups of DCF are leading to a good adsorption efficiency despite of the low surface area of the adsorbent. Graphic abstract

show abstract

Section: Hydrothermal Carbonization Of Palm Kernel Shellsmentioning

confidence: 99%

Hydrochar-derived adsorbent for the removal of diclofenac from aqueous solution

Yaah

Zbair

Oliveira

et al. 2021

Nanotechnol. Environ. Eng.

View full text Add to dashboard Cite

show abstract

“…The removal of emerging contaminants such as drugs, pesticides and endocrine disruptors in hydrochar modified from chemical and physical activation is also cited in the literature (Antero et al, 2019;Fang et al, 2018;Fernandez et al, 2015). The hydrochar of orange peel was activated with H3PO4, under CO2 and air flow, and later evaluated in the removal of salicylic acid, ibuprofen and diclofenac sodium (Fernandez et al, 2015).…”

Section: Hydrochar Modification To Obtain Activated Carbonmentioning

confidence: 99%

Challenges and alternatives for the adequacy of hydrothermal carbonization of lignocellulosic biomass in cleaner production systems: A review

Antero

Alves

Oliveira

et al. 2020

Journal of Cleaner Production

Self Cite

115

View full text Add to dashboard Cite

“…Esse método é muito interessante, pois o compost final, chamado de hydrochar, é capaz de captutur o carbono (Titirici et al, 2007). Mais que isso, a alta versatilidade de converter lodo de estações de tratamento de esgoto (He et al, 2013), biomassa lignocelulósica (Antero et al, 2019;Mäkelä et al, 2015), lodo de estação de tratamento de indústria papeleira (Lin et al, 2015) e microalgas (Heilmann et al, 2011). Devido à grande área superficial e porosidade, hydrochars tem sido descritos como materiais para aramazenamento de energia (Jain et al, 2016) , energia eletroquímica (Fan et al, 2015) e gases (Morris & Wheatley, 2008).…”

Section: Carbonização Hidrotermalunclassified

Cálculos químicos quânticos e seus usos

Sales

Souza

Bezerra

et al. 2021

RSD

Self Cite

View full text Add to dashboard Cite

Neste trabalho, apresentamos estudos que utilizaram a química quântica como uma ferramenta de previsão comportamentos da química e da física molecular, que forneceram dados altamente precisos e quantitativos sobre sistemas moleculares. Iniciamos por rever a teoria da estrutura eletrônica baseada na função das ondas, enfatizando a hierarquia N-eletrônica da teoria dos pares-cluster e a hierarquia de um electrão de conjuntos de bases consistentes de correlação. Posteriormente, mostramos estudos realizados em diversas áreas da química em que os dados quânticos foram usados para estudar comportamentos de compostos em diversas áreas da química moderna. Uma grande vantagem do uso da química quântica computacional é a possibilidade de estudar mecanísticas que não são experimentalmente viáveis de serem executadas, mas os dados fornecidos por ela garantem grande confiabilidade dos dados apresentados. A química computacional se tornou uma ferramenta de grande utilidade na química moderna.

show abstract

A new approach to obtain mesoporous-activated carbon via hydrothermal carbonization of Brazilian Cerrado biomass combined with physical activation for bisphenol-A removal

Cited by 30 publications

References 62 publications

Hydrochar-derived adsorbent for the removal of diclofenac from aqueous solution

Hydrochar-derived adsorbent for the removal of diclofenac from aqueous solution

Challenges and alternatives for the adequacy of hydrothermal carbonization of lignocellulosic biomass in cleaner production systems: A review

Cálculos químicos quânticos e seus usos

Contact Info

Product

Resources

About