Preliminary study on the electrocatalytic performance of an iron biochar catalyst prepared from iron-enriched plants

Cao, Xinqiang; Huang, Yingping; Tang, Changcun; Wang, Jianzhu; Jonson, David; Fang, Yanfen

doi:10.1016/j.jes.2019.08.004

Cited by 33 publications

(10 citation statements)

References 37 publications

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“…[ 21,23 ] The O 1s signal consists of three components (Figure S5e,f, Supporting Information). The first is related to water remaining on the sample (534.0 eV), [ 24 ] while the peaks at 532.1 and 530.8 eV correspond to the COC of the fused dioxane ring and the SO 3 − of DBSA dopant molecules. [ 25 ]…”

Section: Resultsmentioning

confidence: 99%

Nanotheranostic Interface Based on Antibiotic‐Loaded Conducting Polymer Nanoparticles for Real‐Time Monitoring of Bacterial Growth Inhibition

Enshaei

Puiggalı́-Jou

Valle

et al. 2020

Adv Healthcare Materials

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Conducting polymers have been increasingly used as biologically interfacing electrodes for biomedical applications due to their excellent and fast electrochemical response, reversible doping–dedoping characteristics, high stability, easy processability, and biocompatibility. These advantageous properties can be used for the rapid detection and eradication of infections associated to bacterial growth since these are a tremendous burden for individual patients as well as the global healthcare system. Herein, a smart nanotheranostic electroresponsive platform, which consists of chloramphenicol (CAM)‐loaded in poly(3,4‐ethylendioxythiophene) nanoparticles (PEDOT/CAM NPs) for concurrent release of the antibiotic and real‐time monitoring of bacterial growth is presented. PEDOT/CAM NPs, with an antibiotic loading content of 11.9 ± 1.3% w/w, are proved to inhibit the growth of Escherichia coli and Streptococcus sanguinis due to the antibiotic release by cyclic voltammetry. Furthermore, in situ monitoring of bacterial activity is achieved through the electrochemical detection of β‐nicotinamide adenine dinucleotide, a redox active specie produced by the microbial metabolism that diffuse to the extracellular medium. According to these results, the proposed nanotheranostic platform has great potential for real‐time monitoring of the response of bacteria to the released antibiotic, contributing to the evolution of the personalized medicine.

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Section: Resultsmentioning

confidence: 99%

Nanotheranostic Interface Based on Antibiotic‐Loaded Conducting Polymer Nanoparticles for Real‐Time Monitoring of Bacterial Growth Inhibition

Enshaei

Puiggalı́-Jou

Valle

et al. 2020

Adv Healthcare Materials

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“…Figure 1e shows two weak and broad peaks located at 25.8 and 44.7 in the XRD pattern of HFO-BC, which are similar to those of Fe 2 O 3 (JCPDS #39-1346) and Fe 3 O 4 (JCPDS #26-1136). 31 It implies that most of the impregnated HFO is amorphous in nature.…”

Section: Resultsmentioning

confidence: 99%

Enhanced Removal of Heavy Metals from Water by Hydrous Ferric Oxide-Modified Biochar

Gao

et al. 2020

ACS Omega

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Biochar has become an attractive adsorbent for heavy metal removal, but its application potential is very limited because of the relatively low adsorption capacity and poor selectivity. In the present study, we decorated the biochar (BC) by impregnating hydrous ferric oxide (HFO) within the pore of biochar and consequently obtained a new hybrid adsorbent denoted as HFO-BC. The results show HFO-BC exhibited excellent performance to two representative heavy metals, i.e., Cd(II) and Cu(II), with maximal experimental sorption capacities of 29.9 mg/g for Cd(II) and 34.1 mg/g for Cu(II). HFO-BC showed satisfactory anti-interference ability for Cd(II) and Cu(II) removal in the presence of high levels of Ca(II) and Mg(II) owing to the specific inner-sphere complexation between the immobilized HFO and Cd(II) and Cu(II), which was probed by XPS analysis. Cd(II) and Cu(II) removal onto HFO-BC experienced two distinct stages prior to be adsorbed, i.e., migration from solution to the outside surface of adsorbent and pore diffusion and approached equilibrium within 100 min. In the laboratory-scale small column adsorption experiment, HFO-BC can generate ∼129 and 300 BV effluents for Cd(II) and Cu(II), equivalent to 774- and 1854-fold of its own weight, to meet their treatment standards. Moreover, the exhausted HFO-BC can be effectively regenerated using HCl–CaCl2 binary solution with a desorption rate more than 95%. All results validate that impregnating HFO inside the pores of BC is a promising approach to promote the practical applicability of BC for removing heavy metals from the polluted water.

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“…Furthermore, biochar could be efficiently used in redox-mediated reactions [337]. Cao et al [338] proposed a very promising route to convert iron-enriched plant residue by using an electro-active biochar-based catalyst. The authors pyrolyzed a metal hyperaccumulator water plant and produced a biochar that contained 28 mg/g of iron.…”

Section: Other Uses Of Biocharmentioning

confidence: 99%

A Review of Non-Soil Biochar Applications

et al. 2020

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Biochar is the solid residue that is recovered after the thermal cracking of biomasses in an oxygen-free atmosphere. Biochar has been used for many years as a soil amendment and in general soil applications. Nonetheless, biochar is far more than a mere soil amendment. In this review, we report all the non-soil applications of biochar including environmental remediation, energy storage, composites, and catalyst production. We provide a general overview of the recent uses of biochar in material science, thus presenting this cheap and waste-derived material as a high value-added and carbonaceous source.

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Preliminary study on the electrocatalytic performance of an iron biochar catalyst prepared from iron-enriched plants

Cited by 33 publications

References 37 publications

Nanotheranostic Interface Based on Antibiotic‐Loaded Conducting Polymer Nanoparticles for Real‐Time Monitoring of Bacterial Growth Inhibition

Nanotheranostic Interface Based on Antibiotic‐Loaded Conducting Polymer Nanoparticles for Real‐Time Monitoring of Bacterial Growth Inhibition

Enhanced Removal of Heavy Metals from Water by Hydrous Ferric Oxide-Modified Biochar

A Review of Non-Soil Biochar Applications

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