Journal ArticleDOI
Adsorptive removal of arsenate from aqueous solutions by biochar supported zero-valent iron nanocomposite: Batch and continuous flow tests.
TLDR
Experiments showed that nZVI/BC had high As(V) removal capacity in a wide range of pH (3-8) andKinetic data revealed that equilibrium was reached within 1h and isotherm data showed that the Langmuir maximum adsorption capacity of the nZ VI/BC for As(v) at pH 4.1 was 124.5gkg-1.About:
This article is published in Journal of Hazardous Materials.The article was published on 2017-01-15. It has received 250 citations till now.read more
Citations
More filters
Journal ArticleDOI
Biochar modification to enhance sorption of inorganics from water
TL;DR: This review evaluates various methods to increase the sorption efficiency of biochar including activation with steam, acids and bases and the production ofBiochar-based composites with metal oxides, carbonaceous materials, clays, organic compounds, and biofilms.
Journal ArticleDOI
Removal of hexavalent chromium from aqueous solutions by a novel biochar supported nanoscale iron sulfide composite.
TL;DR: A novel biochar supported nanoscale iron sulfide (FeS) composite (CMC-FeS@biochar) combining the advantages of biochar, carboxymethyl cellulose, and FeS was synthesized and tested for Cr(VI) removal efficiency and mechanisms as mentioned in this paper.
Journal ArticleDOI
Multifunctional iron-biochar composites for the removal of potentially toxic elements, inherent cations, and hetero-chloride from hydraulic fracturing wastewater.
Yuqing Sun,Yuqing Sun,Iris K.M. Yu,Daniel C.W. Tsang,Xinde Cao,Daohui Lin,Linling Wang,Nigel Graham,Daniel S. Alessi,Michael Komárek,Yong Sik Ok,Yujie Feng,Xiangdong Li +12 more
TL;DR: A novel sorbent for the removal of potentially toxic elements, inherent cations, and hetero-chloride from hydraulic fracturing wastewater (FWW) by elucidating the removal mechanisms of different contaminants is demonstrated.
Journal ArticleDOI
Recent advances in engineered biochar productions and applications
Bing Wang,Bin Gao,June Fang +2 more
TL;DR: Biochar is mainly used as a soil amendment and for carbon sequestration; while other applications such as environmental remediation may be equally important as discussed by the authors. But biochar is difficult to extract and it is not suitable for outdoor gardening.
Journal ArticleDOI
Effects of ball milling on the physicochemical and sorptive properties of biochar: Experimental observations and governing mechanisms
TL;DR: Experimental and modeling results suggest that the increase in BM-biochar's external and internal surface areas exposed its graphitic structure, thus enhancing Ni(II) adsorption via strong cation-π interaction and surface complexation, which has great potential to increase the efficiency of environmentally friendly biochar for various environmental applications.
References
More filters
Journal ArticleDOI
The Scherrer Formula for X-Ray Particle Size Determination
TL;DR: An exact derivation of the Scherrer equation is given for particles of spherical shape, values of the constant for half-value breadth and for integral breadth being obtained in this article, and various approximation methods which have been used are compared with the exact calculation.
Journal ArticleDOI
Investigation of multiplet splitting of Fe 2p XPS spectra and bonding in iron compounds
TL;DR: In this paper, the authors investigated the usefulness of calculated multiplet peaks to fit high-resolution iron 2p3/2 spectra from high-spin compounds. And they found that the multiplets were found to fit most spectra well, particularly when contributions attributed to surface peaks and shake-up satellites were included.
Journal ArticleDOI
The Scherrer equation versus the 'Debye-Scherrer equation'
Uwe Holzwarth,Neil Gibson +1 more
TL;DR: Paul Scherrer and Peter Debye developed powder X-ray diffraction together, but it was Scherrer who figured out how to determine the size of crystallites from the broadening of diffraction peaks.
Journal ArticleDOI
The use of zero-valent iron for groundwater remediation and wastewater treatment: a review.
TL;DR: An overview of the recent advances of ZVI and progress obtained during the groundwater remediation and wastewater treatment utilizing ZVI (including nanoscale zero-valent iron (nZVI)) for the removal of contaminants.
Journal ArticleDOI
Aggregation and Sedimentation of Aqueous Nanoscale Zerovalent Iron Dispersions
TL;DR: Investigation of the rapid aggregation of NZVI from single nanoparticles to micrometer size aggregates, and optical microscopy and sedimentation measurements to estimate the size of interconnected fractal aggregates formed confirm that magnetic attractive forces between particles increase the rate ofNZVI aggregation as compared to nonmagnetic particles.