Biochar Characterisation and Adsorption Data Analysis


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Documentation for package ‘biocharkit’ version 0.2.0

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assign_ftir_peaks Assign FTIR peak wavenumbers to functional groups
baseline_correct Baseline-correct an FTIR spectrum
bet_surface_area BET surface area from multi-point gas adsorption data
correlation_matrix Pairwise correlation matrix with p-values
find_ftir_peaks Automatically pick peaks from a full FTIR spectrum
fit_confint Confidence intervals for a fitted isotherm, kinetics, or van't Hoff model
fit_dr Fit the Dubinin-Radushkevich (D-R) adsorption isotherm
fit_elovich Fit the Elovich kinetics model
fit_freundlich Fit the Freundlich adsorption isotherm
fit_intraparticle Fit the intraparticle diffusion (Weber-Morris) kinetics model
fit_isotherm_batch Fit an adsorption isotherm separately for each group in a data frame
fit_kinetics_batch Fit adsorption kinetics separately for each group in a data frame
fit_langmuir Fit the Langmuir adsorption isotherm
fit_pfo Fit pseudo-first-order adsorption kinetics
fit_pso Fits 'qt = (k2 * qe^2 * t) / (1 + k2 * qe * t)' by nonlinear least squares.
fit_sips Fit the Sips (Langmuir-Freundlich) adsorption isotherm
fit_temkin Fit the Temkin adsorption isotherm
fit_vant_hoff Van't Hoff thermodynamic analysis of adsorption
ftir_band_reference Reference table of common FTIR functional-group band assignments
functional_group_density Functional group density from a full FTIR spectrum
parse_sbc_id Parse structured biochar sample identifiers
pct_mass_change Percentage mass loss between two mass measurements
plot_ftir_spectrum Plot an FTIR spectrum
plot_isotherm Plot an adsorption isotherm fit
plot_kinetics Plot a kinetics fit
proximate_analysis Proximate analysis summary (moisture, volatile matter, ash, fixed carbon)
qe_batch Batch adsorption capacity (qe)
read_ftir_txt Read a two-column FTIR spectrum export
read_xrd_txt Read a two-column XRD pattern export
removal_efficiency Percentage removal efficiency
save_tiff Save a base-graphics plot as a 600 dpi TIFF
sbc_example Synthetic example biochar dataset
ultimate_ratios Atomic ratios from ultimate (CHNS) elemental analysis
xrd_crystallinity_index Peak-area crystallinity index from an XRD pattern
xrd_deconvolve Simplified multi-Gaussian XRD peak deconvolution