A facile and green strategy to synthesize N/P co-doped bio-char as VOCs adsorbent: Through efficient biogas slurry treatment and struvite transform

Cao, Danyang; Ji, Yuxiang; Liu, Li; Li, Long; Li, Licheng; Feng, Xin; Zhu, Jiahua; Lü, Xiaohua; Mu, Liwen

doi:10.1016/j.fuel.2022.124156

Cited by 14 publications

(4 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 5c,d illustrate the spectra of N1s for NPC-800-2 and P2p for PPC-800-2; it was concluded that the formation of the same relatively high content of pyrrole-N and C-O-P was observed. Compared to single doping, the method of N, P co-doping induces the reaction of melamine and phytic acid at high temperatures, and it a greater propensity towards the formation of comprehensive functional groups is preferred, which is consistent with the FTIR spectra [45,46]. Additionally, the content of the N and P functional groups is further calculated in Figure 5e; it can be deduced that the number of functional groups on the surface of carbon materials can be increased to form strong chemisorption with N 2 O, meaning that the incorporation of N and P could alter the electronic structure of the carbon material to make an augmentation in surface active sites and is conductive to the abundance of micropores and mesopores structure being generated, enhancing the interaction between NPPCs and N 2 O.…”

Section: Nppcs Characterizationsupporting

confidence: 66%

Effect of Physico-Chemical Properties Induced by N, P Co-Doped Biomass Porous Carbon on Nitrous Oxide Adsorption Performance

Gong,

Liu,

Mou

et al. 2024

Sustainability

View full text Add to dashboard Cite

The adsorption and enrichment of greenhouse gases on biomass porous carbon is a promising approach. Herein, a simple type of nitrogen and phosphorus co-doped biomass porous carbon (NPPC), which was derived from fast-growing eucalyptus bark, was reported via one-step method of carbonization and activation, and the nitrous oxide (N2O) adsorption performance and the adsorption mechanism of the NPPCs were also investigated. The results showed that NPPC-800-2 demonstrated a high specific surface area (1038.48 m2∙g−1), abundant micropores (0.31 cm3∙g−1), and enriched content of N and P (4.17 wt.% and 0.62 wt.%), which also exhibited a high N2O adsorption capacity of 0.839 mmol∙g−1. Moreover, the addition of N enhanced the surface polarity of carbon, thereby altering its pore structure. And P doping induced changes in the structural orientation of carbon, resulting in an increased presence of N-P functional groups. This finding reveals that the eucalyptus bark-based N and P co-doped porous carbon shows great potential for wide applications in N2O capture and provides effective guidance for the design and development of waste biomass adsorbent.

show abstract

Section: Nppcs Characterizationsupporting

confidence: 66%

Effect of Physico-Chemical Properties Induced by N, P Co-Doped Biomass Porous Carbon on Nitrous Oxide Adsorption Performance

Gong,

Liu,

Mou

et al. 2024

Sustainability

View full text Add to dashboard Cite

show abstract

“…It was observed that both adsorbents had two bands at 1360 cm −1 (D band) and 1580 cm −1 (G band), which were relevant to the defects/disordered structure and the layered graphitic structure. 44 The ratio of the D band's intensity to G band's intensity (I D /I G ) was used to estimate the disorder degree of the adsorbent. 45,46 In this experiment, the I D /I G values of HCS and C 0.1 @HCS were 0.89 and 1.09, respectively.…”

Section: Morphology and Structure Characterizationmentioning

confidence: 99%

New Porous Carbon Material Derived from Carbon Microspheres Assembled in Hollow Carbon Spheres and Its Application to Toluene Adsorption

Qin

Asamoah

et al. 2023

Langmuir

View full text Add to dashboard Cite

In this paper, a new porous carbon material adsorbent was prepared using carbon microspheres assembled in hollow carbon spheres (HCS) with a hydrothermal method. Transmission electron microscopy, scanning electron microscopy, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, X-ray diffraction, and Raman spectroscopy were used to characterize the adsorbents. It was found that the diameter of carbon microspheres derived from 0.1 mol/L glucose was about 130 nm, which could be inserted inside HCS (pore size was 370−450 nm). The increase in glucose concentration would promote the diameter of carbon microspheres (CSs), and coarse CSs could not be loaded in the mesopores or macropores of HCS. Thus, the C 0.1 @HCS adsorbent had the highest Brunauer−Emmett−Teller surface area (1945 m 2 /g) and total pore volume (1.627 cm 3 /g). At the same time, C 0.1 @HCS posed a suitable ratio of micropores and mesopores, which could provide adsorption sites and volatile organic compound diffusion channels. Moreover, oxygen-containing functional groups −OH and C�O in CSs were also introduced into HCS, and the adsorption capacity and regenerability performance of the adsorbents were improved. The dynamic adsorption capacity of C 0.1 @HCS for toluene reached 813 mg/g, and the Bangham model was more suitable for describing the toluene adsorption process. The adsorption capacity was stably kept above 770 mg/g after eight adsorption−desorption cycles.

show abstract

“…[12]. Of particular interest is the preparation of PBC, which significantly enhances its conductivity, thermal stability, and the number of active surface sites, finding broad applications in electrochemistry, catalysis, and adsorption, among other fields [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

A Review on the Removal of Heavy Metals from Water by Phosphorus-Enriched Biochar

Zeng,

Lin,

et al. 2024

Minerals

View full text Add to dashboard Cite

In recent years, the utilization of phosphorus-enriched biochar (PBC) has attracted significant attention due to its exceptional stability and surface reactivity. This review systematically summarizes the advancements in research related to the application of PBC as an adsorbent for remediating water contaminated with heavy metals. Initially, the precursors utilized in the production of PBC, encompassing biomass and phosphorus sources, are introduced. Subsequently, the distinct physicochemical properties and adsorption characteristics resulting from phosphorus doping on the biochar surface through various carbonization processes and parameters are elucidated. Additionally, the diverse adsorption mechanisms employed by PBC in removing heavy metals from water are analyzed. Lastly, future research prospects and associated challenges concerning PBC are presented. This paper aims to furnish comprehensive background information for the practical implementation of PBC in the purification of heavy metal-contaminated water environments.

show abstract

A facile and green strategy to synthesize N/P co-doped bio-char as VOCs adsorbent: Through efficient biogas slurry treatment and struvite transform

Cited by 14 publications

References 56 publications

Effect of Physico-Chemical Properties Induced by N, P Co-Doped Biomass Porous Carbon on Nitrous Oxide Adsorption Performance

Effect of Physico-Chemical Properties Induced by N, P Co-Doped Biomass Porous Carbon on Nitrous Oxide Adsorption Performance

New Porous Carbon Material Derived from Carbon Microspheres Assembled in Hollow Carbon Spheres and Its Application to Toluene Adsorption

A Review on the Removal of Heavy Metals from Water by Phosphorus-Enriched Biochar

Contact Info

Product

Resources

About